Title of Invention: ANTIMICROBIAL COMPOUND Abstract: An antimicrobial composition including low molecular weight dendrimers of formula (I): Q is an antimicrobial moiety in monomer or dendritic form, N is a nitrogen atom, L2 is a linker linking each Y1 molecular spacer to the nitrogen atom, is a molecular spacer spacing each antimicrobial moiety Q from the L2 linker, there are two or more chains of antimicrobial moieties and molecular spacers, X is a linker configured to covalently bond to surface functionalities of the substrate, and Y2 is a molecular spacer between the linker X and the nitrogen atom. Detailed Description: RELATED APPLICATIONS This application claims benefit of and priority to U.S. Provisional Application Ser. No. 62/656,410 filed Apr. 12, 2018, under 35 U.S.C. §§ 119, 120, 363, 365, and 37 C.F.R. § 1.55 and § 1.78, which is incorporated herein by this reference. BACKGROUND OF THE INVENTION This invention relates to the field of antimicrobial surfaces such as textiles, metallic surfaces, polymeric materials, and the like Novel technologies in this field have tremendous and broad market opportunities in both medical and non-medical areas. The antimicrobial textiles market size is estimated to be valued at US $497.4 million in the US in 2015 and is projected to reach $1.07 million in the US by 2026, at a CAGR of 7.4% from 2016 to 2026. Also, by 2020, the market for smart antimicrobial coatings and surfaces in non-healthcare markets is expected to reach $225 million in the US and may reach $500 million by the 2022, The report “Antimicrobial Coatings Market by Type (Silver, Copper), Application (Indoor Air/HVAC, Medical, Mold Remediation, Building & Construction, Foods & Beverages, Textiles)—Global Forecast to 2021”, is projected to reach $4.19 billion in the US by 2021, at a CAGR of 12.1 from 2016 to 2021. With the increased penetration of antimicrobial coatings in end-use applications in North America and Europe, it is anticipated that the market will register slightly higher growth than the Asia Pacific region, Middle East, Africa, and South America during the forecast period. Multiple literature reports describe the concepts of antimicrobial dendrimers and covalent attachment of antimicrobial polymers to various surfaces. See U.S. Pat. Nos. 6,440,405-B1, 8,790,672-B2 and U.S. Published Application No. 2004/025118-A1, all incorporated herein by this reference. SUMMARY OF THE INVENTION The problem of antimicrobial (AM) surfaces with low antimicrobial activity and/or loss of AM activity due to leaching/laundering is solved by novel quaternary ammonium. cation (QAC) dendrimers covalently (strongly) attached to a surface of choice. These compounds render the resulting surfaces with high efficacy and broad spectrum antimicrobial activity (including antibacterial—both vegetative cells and spores, antifungal and antiviral), and resistance to leaching/laundering. The concept for combined high antimicrobial efficacy, covalent attachment and biocompatibility has been demonstrated for textile surfaces. The attachment of dendrimers to metal surfaces via covalent bonds and the high antimicrobial efficacy of the resulting surfaces have also been demonstrated. Functionalization of polyurethane surfaces via covalent bonds has also been demonstrated. Functionalization of invasive medical devices such as tracheal tubes and catheters (made of polymers such as polyvinyl chloride or polyurethane) and antimicrobial evaluation have been proposed. One embodiment of the approach produces textile materials with AM finish that is robust towards heat (autoclaving) or laundering. The attachment chemistry can be modified for AM derivatization of multiple surfaces (metallic, polymers, others). One purpose of this invention is to demonstrate novel, low molecular weight dendrimers and their use for providing antimicrobial properties to multiple surfaces including but not limited to textiles, metals, polymers and filtration media. Featured is a composition providing antimicrobial properties to a substrate. The composition comprises low molecular weight dendrimers of formula (1): Preferably, Q is an antimicrobial moiety in monomer or dendritic form, N is a nitrogen atom, L2 is a linker linking each Y1 molecular spacer to the nitrogen atom, Y1 is a molecular spacer spacing each antimicrobial moiety Q from the L2 linker, and there are two or more chains of antimicrobial moieties and molecular spacers. X preferably is a linker configured to covalently bond to surface functionalities of the substrate and Y2 is preferably a molecular spacer between the linker X and the nitrogen atom. The molecular spacer Y2 preferably includes a ring structure such as an aromatic ring. The antimicrobial moiety may include positively charged quaternary ammonium cations. The quaternary ammonium cations are preferably chosen from: tetrasubstituted nitrogen of type +NR1R2R3R4, where R1-R4 can independently be alkyl, aryl, alkenyl or other carbon moieties and trisubstituted nitrogen of type Z1Z2N+=CA1A2, where Z1, Z2 can independently be alkyl, aryl, alkenyl or other carbon moieties and A1 and A2 are carbon or heteroatom moieties that may form a ring structure with Z or Z2. The quaternary ammonium cations may be chosen from substituted dimethyldodecylammonium cation, didodecylmethylammonium cation, and dimethyloctylammonium cation, and substituted 2-methyl-1 -decylimidazolium. The linker X may be chosen from: amino groups, dichlorotriazine, phosphoric acid, azide or other linkers specific to the surface of choice. The linker L2 may include substituted N-propyl-propionamide. The spacer Y1 may include substituted N-ethylurea. Also featured is a composition providing antimicrobial properties to a substrate. The preferred composition comprises an antimicrobial moiety in monomer or dendritic form, a nitrogen atom, and a linker L2 linking a molecular spacer Y to the nitrogen atom. The molecular spacer Y1 spaces each antimicrobial moiety from the L2 linker. There are two or more chains of antimicrobial moieties and molecular spacers, a linker X configured to covalently bond to surface functionalities of the substrate, and a molecular spacer Y2 between the linker X and the nitrogen atom. The molecular spacer Y2 may include a ring structure such as an aromatic ring. The antimicrobial moiety preferably includes positively charged quaternary ammonium cations. The quaternary ammonium cations may be chosen from: tetrasubstituted nitrogen of type +NR1R2R3R4 where R1-R4 can independently be alkyl, aryl, alkenyl or other carbon moieties and trisubstituted nitrogen of type Z1Z2N+=CA1A2 where Z1, Z2 can independently be alkyl, aryl, alkenyl or other carbon moieties and A1 and A2 are carbon or heteroatom moieties that may form a ring structure with Z1 or Z2. The composition of claim 14 in which the quaternary ammonia cations is chosen from substituted dimethyldodecylammonium cation, didodecylmethylammonium cation, and dimethyloctylammonium cation, and substituted 2-methyl-1-decylimidazolium. The linker X is preferably chosen from: amino groups, dichlorotriazine, phosphoric acid, and azide. The linker L2 may include substituted N-propyl-propionamide. The spacer Y1 may include substituted N-ethylurea. The subject invention, however, in other embodiments, need not achieve all these objectives and the claims hereof should not be limited to structures or methods capable of achieving these objectives. BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS Other objects, features and advantages will occur to those skilled in the art from the following description of a preferred embodiment and the accompanying drawings, in which: FIG. 1 shows Formula (1) of the invention; FIG. 2 is an example of generic structure of the dendrimers (tetramers); FIG. 3 is an example of synthesis of QAC-dimer-NO2 intermediate; FIG. 4 is an example of synthesis of the tetraester intermediate; FIG. 5 is an example of synthesis of the tetraamino intermediate; FIG. 6 is an example of synthesis of the tetrachlorointermediate; FIG. 7 is an example of synthesis QAC-tetramer (NO2 form, QAC=dimethyldodecylammonium); FIG. 8 is an example of a reduction of the nitro group (tetramer QAC); FIG. 9 is an example of introduction of the dichlorotriazine-DCT linker; FIG. 10 is an example of a reaction of QAC tetramer (DCT form) with t-butanol; FIG. 11 is an example of the structure of novel QAC-tetramers; FIG. 12 is an example of N,N-dimethyloctadecyl amine quaternization; FIG. 13 is an example of a reduction of the nitro group (C18-tetramer); FIG. 14 is an example of an introduction of the DCT linker (C18-tetramer); FIG. 15 is an example of confirmation of nitro reduction and DCT introduction (C18 tetramer); FIG. 16 is an example of synthesis of (C12)2 tetramer; FIG. 17 is an example of quarternization with didocecylmethylamine; FIG. 18 is an example of reduction of the nitro group (C12)2 tetramer; FIG. 19 is an example of introduction of the DCI Linker—(C12)2 tetramer; FIG. 20 is an example of confirmation of nitro reduction and DCT introduction (C12)2 tetramer; FIG. 21 is an example of synthesis of QAC-I tetramer; FIG. 22 is an example of quarternization with 1-decyl-2-methylimidazole; FIG. 23 is an example of a reduction of the nitro group (QAC-I tetramer); FIG. 24 is an example of introduction of the DCI linker (QAC-I tetramer); FIG. 25 is an example of confirmation of nitro reduction and DCT introduction (QAC-I tetramer); FIG. 26 is an example of synthesis of tetrachloro-intermediate; FIG. 27 is an example of quarternization of tetrachloro-intermediate (large scale); FIG. 28 is an example of a reduction of the QAC-I (NO2form); FIG. 29 is an example of synthesis of the octaester intermediate; FIG. 30 is an example of synthesis of the octaamino intermediate; FIG. 31 is an example of synthesis of octachloro intermediate; FIG. 32 is an example of synthesis of the hexadecaester intermediate; FIG. 33 is an example of fabric functionalization ethodologies; FIG. 34 is an example of fluorescein staining; FIG. 35 is an example of an overview of the AATCC100 method; FIG. 36 is an example of a base architecture (left) and a C structures (right); FIG. 37 is an example of efficacy of QAC-4 and QAC-I (K. peumoniae, cotton fabrics); FIG. 38 is an example of antibacterial efficacy of QAC-I Derivatized NYCO and Polyester Fabrics; FIG. 39 is an example of laundering experiments—effect of detergent; FIG. 40 is an example of Tide laundering in the presence of QAC-NO2. FIG. 41 is an example of Tide laundering—effects of temperature and concentration; FIG. 42 is an example of derivatizations at 60° C.; FIG. 43 is an example of derivatizations at 90° C.; FIG. 44 is an example of derivatizations using 5× concentration and 90° C.; FIG. 45 is an example of derivatization of large swatch (12″×12″); FIG. 46 is an example of bath reusability studies; FIG. 47 is an example of attachment of dendrimer to other surfaces; FIG. 48 is an example of synthesis of AM compound for coating of metal surfaces; FIG. 49 is an example of a schematic of the proposed approach; and FIGS. 50-62 show additional examples. DETAILED DESCRIPTION OF THE INVENTION Aside from the preferred embodiment or embodiments disclosed below, this invention is capable of other embodiments and of being practiced or being carried out in various ways. Thus, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. If only one embodiment is described herein, the claims hereof are not to be limited to that embodiment. Moreover, the claims hereof are not to be read restrictively unless there is clear and convincing evidence manifesting a certain exclusion, restriction, or disclaimer. Featured is a composition (see FIG. 1) providing antimicrobial properties to a substrate. The composition comprises low molecular weight dendrimers of formula (1): Where Q is an antimicrobial moiety in monomer or dendritic form, N is a nitrogen atom, L2 is a linker linking each Y1 molecular spacer to the nitrogen atom, Y1 is a molecular spacer spacing each antimicrobial moiety Q from the L2 linker, there are two or more chains of antimicrobial moieties and molecular spacers, X is a linker configured to covalently bond to surface functionalities of the substrate, and Y2 is a molecular spacer between the linker X and the nitrogen atom. Molecular spacer Y2 may include a ring structure as shown in FIG. 2. The ring structure may be an aromatic ring such as a benzene ring or similar type aromatic ring. The antimicrobial moiety Q may include positively charged quaternary ammonium cations (QAC). The quaternary ammonium cations may be chosen from: tetrasubstituted nitrogen of type +NR1R2R3R4, where R1-R4 can independently be alkyl, aryl, alkenyl or other carbon moieties and trisubstituted nitrogen of type Z1Z2N+=CA1A2, where Z1, Z2 can independently be alkyl, aryl, alkenyl or other carbon moieties and A1 and A2 are carbon or heteroatom moieties that may form a ring structure with Z1 or Z2. The quaternary ammonium cations may be chosen from substituted dimethyldodecylammonium cation, didodecylmethylammonium cation, and dimethyloctylammonium cation, and substituted 2-methyl-1-decylimidazolium. The linker X may be chosen from: amino groups, dichlorotriazine, phosphonic acid, azide or other linkers specific to the surface of choice. The linker L2 may include substituted N-propyl-propionamide. The spacer Y1 may include substituted N-ethylurea. A. Synthesis of Antimicrobial QAC-Dendrimers Examples Multiple compounds (QAC-dendrimers and intermediates) were synthesized on gram-to-multigram scale. All compounds originated from the commercially available NPEA-2-(4-nitrophenyl)ethylamine hydrochloride. The compounds are structurally classified based on the dendrimer generation: 1st generation (two branches-dimers), 2nd generation (four branches-tetramers), 3rd generation (eight branches-octamers) and 4th generation (sixteen branches-hexadecamers). Examples of synthesis and experimental procedures for various compounds from these four classes are presented below (note: NMR spectra are available in picture format). Synthesis of 1st generation dendrimer compounds and intermediates (dimers) (a) Synthesis of QAC-Dimer (NO2 Derivative) This material has been synthesized on a gram scale in four steps from the commercially available NPEA 2-(4-nitrophenyl)ethylamine hydrochloride (FIG. 3). First, 2-(4-nitrophenyl)ethylamine hydrochloride-NPEA (20 grams, 99 mmol) was treated with excess aqueous sodium hydroxide in a methylene chloride (150 mL) emulsion. The resultant was thoroughly extracted (3×50 mL) with methylene chloride, dried over anhydrous sodium sulfate, and concentrated in vacuo prior to being added to methanol (100 mL). The free base solution in methanol was then treated with methyl acrylate (30 mL, 300 mmol). The resultant reaction mixture was heated to reflux and left to react overnight. Following 16 hours of reaction time, the crude reaction mixture was concentrated via rotary evaporation. After evaporation of all solvent and excess methyl acrylate, the diester intermediate, dimethyl 3,3′-((4-nitrophenethyl)azanediyl)dipropionate was isolated as an orange oil (32.1 grams, 96%). 1H-NM R analysis of the material indicated sufficient purity to use directly in subsequent syntheses. The previously obtained diester intermediate (32.1 grams, 95 mmol) was added to ethanol (50 mL) in a round bottom flask equipped with stir bar. To the reaction vessel was added 1,3-diaminopropane (32 mL, 380 mmol). The vessel was equipped with a glycol-chilled condenser and heated to reflux for 72 hours. Following completion of the reaction, excess solvent and 1,3-diaminopropane were removed in vacuo and the resultant oily liquid (133 grams, 31.6 mmol) was directly added to tert-butanol (50 mL) in a round bottom flask equipped with stir bar. To this solution was added 2-chloroethylisocyanate (10.5 mL, 100 mmol). The mixture was heated to reflux while equipped with a condenser for 48 hours. The excess solvent and 2-chloroethylisocyanate were removed from the mixture via vacuum distillation, yielding 3,3′-((4-nitrophenethyl)azanediyl)bis(N-(3-(3-(2-chloroethyl)ureido)propyl)propanamide) as an orange, waxy, semi-solid. 1H-NMR analysis indicated good purity. The dichloro-intermediate previously isolated was carried forward directly without further purification toward the synthesis of the first generation QAC dendrimer. The substrate was dissolved in hot methanol (600 mL) and stirred vigorously. To the solution was added excess N,N-dimethyldodecylamine (80 mL, 300 mmol). The reaction mixture was allowed to proceed under refluxing conditions for 96 hours. After 96 hours of reaction time the reaction mixture was concentrated under reduced pressure. Acetone was added to remove excess N,N-dimethyldodecylamine via trituration. The resultant material was washed thoroughly with methanol, and the supernatant collected. The supernatant solution was concentrated via rotary evaporation. After removal of the excess solvent, the material from the supernatant was analyzed by 1H-NMR. It was determined that this fraction contained the majority of the desired product. (b) Synthesis oaf QAC-Dimer (NH2 Derivative) Reduction of QAC-dimer-NO2 derivative with tin (II) chloride afforded the QAC-dimer amino intermediate as shown below. A round bottomed flask equipped with magnetic stir bar is charged with methanol (50 mL) and water (10 mL). To the flask is added N1,N25-didodecyl-N1,N1,N25,N25-tetramethyl-13-(4-nitrophenethyl)-4,10,16,22-tetraoxo-3,5,9,13,17,21,23- heptaazapentacosane-1,25-diaminium chloride (5.9 grams, 5.56 mmol). To the solution was then added tin chloride dihydrate (3.8 grams, 16.7 mmol), followed by concentrated hydrochloric acid (L4 mL, 16.7 mmol), The resultant was allowed to proceed at ambient temperature for 3 days. Following the completion of the reaction, aqueous sodium bicarbonate was added to the mixture under vigorous stirring until formation of gas ceased. The methanol was removed under reduced pressure, and the resultant suspension in water was concentrated by evaporation. The suspension was then filtered over a Teflon membrane, removing various inorganic salts. It was determined by 1H-NMR that the aqueous layer contained the QAC dimer (amino intermediate). Synthesis of 2nd Generation Dendrimer Compounds and Intermediates (Tetramers) (a) Synthesis of the Tetraester Intermediate The key tetraester intermediate was synthesized in one step from a diamino-intermediate used for the synthesis of the 1st generation dendrimers. The reaction involves exhaustive treatment with methyl acrylate as shown in FIG. 4. The experimental procedure is presented below. A round bottom flask was charged with methanol (100 mL) and equipped with a magnetic stir bar. To the flask was added 3,3′-((4-nitrophenethyl)azanediyl)bis(N-(3-aminopropyl)propanamide) (26.7 grams, 63 mmol). The resultant was stirred vigorously and methyl acrylate (34 mL, 380 mmol) was added. The reaction mixture was heated to reflux while equipped with a glycol-chilled condenser and left to react overnight. Removal of solvent in vacuo yielded the tetraester intermediate—dimethyl 4,20-bis(3-methoxy-3-oxopropyl)-12-(4-nitrophenethyl)-9,15-dioxo-4,8,12,16,20-pentaazatricosanedioate. The product has high purity, as indicated by the 1H-NMR analysis. (b) Synthesis of the Tetraamino Intermediate The tetraamino intermediate was obtained from the tetraester intermediate shown above by treatment with excess of 1,3-diaminopropane (FIG. 5). A mixture of tetraester intermediate (63 mmol), ethanol (50 mL) and 1,3-diaminopropane (506 mmol, 43 mL) was stirred for 16 hours under reflux. Once the reaction was finished, the solvent and remaining 1,3-diaminopropane were removed using vacuum distillation. The resulting waxy residue was analyzed by 1H-NMR which indicated high purity. (c) Synthesis of QAC-Tetramer (NO2 form, QAC=dimethyldodecylammonium) The target compound was synthesized from the tetraamino intermediate in two steps as described below. In the first step, the reaction of the tetraamino intermediate with 2-chloroethyl isocyanate affords the tetrachlorointermediate shown in FIG. 6. The experimental details are presented below. A 100 mL round bottom flask was charged with 2-chloroethyl isocyanate (6 mL) dissolved in DCM (5 mL). In a separate vial the 1st generation amine terminated dendrimer (˜5.3 mmoles) was dissolved in DCM (15 mL) and then transferred to an addition funnel. The addition funnel was connected to the 100 mL round bottom flask, and the flask was placed in an oil bath set to 50° C. while stirring. After the 2-chloroethyl-isocyanate was up to temperature, the dendrimer intermediate solution was added dropwise over an hour. After one hour the addition funnel was switched out for a glycol chilled condenser and the reaction was allowed to proceed for 16 hours. The product was triturated with heptane. After decanting, this process was repeated 5 additional times to ensure the product was pure as evidenced by the 1H-NMR analysis. In the second step of the synthesis, the tetrachloro-intermediate was reacted with the dimethyldodecylamine to afford the QAC-tetramer target compound (FIG. 7). The experimental procedure is presented below: The tetrachlorointermediate shown in FIG. 6 (1 gram) was dissolved in methanol (13 mL) and N,N-dimethyldodecylamine (3.4 mL) was added. The mixture was magnetically stirred under reflux for 72 hours. The mixture was concentrated under reduced pressure and the crude product was purified by crystallization from acetone. 1H-NMR analysis indicated high purity. (d) Synthesis of Final QAC-Tetramers (Amino-NH2 and Dichlorotriazine-DCT Forms QAC=dimethyldodecylammonium) The QAC-tetramer (NO2 form) synthesized as shown above was reduced with tin (II) chloride to afford the amino (NH2) derivative. This compound was further reacted with cyanuric chloride to afford the dichlorotriazine (DCT) analog. The experimental procedures associated with these two steps are presented in details below. (d1) Reduction of the Nitro Group (FIG. 8) A 250 mL round bottom flask was charged with 0.8 grams (0.36 mmoles) of the nitro QAC tetramer intermediate, 50 mL MeOH, 10 mL H2O, 380 μL 12 M HCl (12 mole equivalents), and 0.5 grams of SnCl2 2H2O (6 mole equivalents). The reaction was allowed to stir for 16 hours at room temperature. The solution was then roto-evaporated to ˜10 mL. 50 mL of DCM was added and the entire solution was transferred to a separation funnel. The reduced tetramer intermediate was phase transferred to the DCM layer. The aqueous layer was removed and the organic layer was treated with sodium carbonate to free up the base (—NH3→—NH2). Concentration under reduced pressure afforded the target compound which was used in the next step without further purification. (d2) Introduction of the Dichlorotriazine-DCT Linker (FIG. 2) A 100 mL round bottom flask was charged with 0.36 mmoles of the amine QAC-tetramer intermediate (FIG. 8) and 50 mL of deionized water before being placed in an ice bath. The pH of was then reduced to 5 using HCl. In a separate vial, 0.56 mmoles (0.11 grams) of cyanuric chloride was dissolved in 5 mL of acetone before being chilled to 0-5° C. The cyanuric chloride solution was then added to the amine QAC-tetramer intermediate while stirring in the ice bath. After an hour of stirring the reaction was stopped and the product was crashed out of solution using an excess of acetone. The solution was poured off and the product was stored in dry acetone in the freezer. Structural Confirmation of the Nitro Group Reduction and Subsequent DCT Introduction A small amount of the finished QAC tetramer shown in FIG. 9 was dissolved in t-BuOH and allowed to react at 70° C. for 2 hours while stirring (FIG. 10): The solvent was removed via roto-evaporation and the 1H -NMR analysis confirmed the reaction and the structures of the starting material and of the amino precursor. Synthesis of QAC-Tetramers with Various QAC-Head Groups In order to develop a structure activity relationship (SAR) between the QAC groups and the antimicrobial efficacy, three more constructs were synthesized in addition to the compound described in FIG. 9. The structures of these compounds which were synthesized from the common tetrachlorointermediate are shown in FIG. 11. The steps involved in the synthesis of these compounds along with the corresponding experimental procedures axe presented below: (a) Synthesis of the C18 Tetramer Compounds Step 1: N,N-dimethyloctadecyl Amine Quarternization (FIG. 12) The isocyanate terminated tetra-dendrimer intermediate (7 grams) and N,N-dimethyloctadecylamine (15.3 grams) were dissolved in MeOH (180 mL) in a 500 mL round bottom flask. The flask was equipped with a glycol chilled condenser and placed in a 70° C. oil bath where the reaction was allowed to reflux for 8 days. Purification by crystallization from ethyl ether two times afforded pure product. Step 2: Reduction of the Nitro Group (FIG. 13) A 500 mL round bottom flask was charged with the nitro C18-QAC-tetramer intermediate (8.56 grams), MeOH (250 mL), H2O (20 mL), 12 M HCl (3.4 mL, 12 mole equivalents), and SnCl2.2H2O (4.6 grams, 6 mole equivalents). The reaction was allowed to stir for 16 hours at room temperature. The solution was then roto-evaporated to ˜20 mL total volume, 50 mL of DCM was added and the entire solution was transferred to a separation funnel. The reduced tetramer intermediate was phase transferred into the DCM layer. The aqueous layer was removed and the organic layer was treated with sodium carbonate to free up the base (—NH3+→—NH2). The product (8 grams) was then isolated via rotary evaporation. Step 3: Introduction of the DCT Linker (FIG. 14) A 250 mL round bottom flask was charged with the amine C18-QAC-tetramer intermediate (8 grams) and deionized water (100 mL) before being placed in an ice bath. The pH was then adjusted to 5 using HCl. In a separate vial, cyanuric chloride (0.88 grams) was dissolved in acetone (5 mL) before being chilled to 0-5° C. The cyanuric chloride solution was then added to the amine C18-QAC-tetramer intermediate while stirring in the ice bath. After 2 hours of stirring the reaction was stopped and the product was crashed out of solution using an excess of acetone. The solution was poured off, dried, weighed (3.387 grams), and then the product was dissolved in acidic water (pH=3) and placed in a freezer for storage. Step 4: Confirmation of Nitro Reduction and DCT Introduction (FIG. 15) A small amount of the finished C18-QAC-tetramer was dissolved in t-BuOH and allowed to heat to 70° C. for 2 hours while stirring. After 2 hours the remaining t-BuOH was removed via roto-evaporation, 1H-NMR analysis indicated reaction completion. (b) Synthesis of (C12)2 Tetramer (FIG. 16) Step 1: Quaternization with didodecylmethylamine (FIG. 17) The isocyanate terminated tetra-dendrimer intermediate (7 grams) and Didodecylmethylamine (24 grams) were dissolved in MeOH (180 mL) in a 500 mL round bottom flask. The flask was equipped with a glycol chilled condenser and placed in a 70° C.-oil bath where the reaction was allowed to reflux for 8 days. The product was purified by crystallization in ethyl acetate/acetone two times. Step 2: Reduction of the Nitro Group—(C12)2 Tetramer (FIG. 18) 500 mL round bottom flask was charged with the nitro (C12)2-QAC-tetramer intermediate (4.87 grams), MeOH (250 mL), H2O (20 mL), 12 M HCl (1.7 mL, 12 mole equivalents), and SnCl2 2H2O (2.33 grains, 6 mole equivalents). The reaction was allowed to stir for 16 hours at room temperature. The solution was then roto-evaporated to 20 mL total volume. 50mL of DCM was added and the entire solution was transferred to a separation funnel. The reduced tetramer intermediate was phase transferred into the DCM layer. The aqueous layer was removed and the organic layer was treated with sodium carbonate to free up the base (—NH3+→—NH2). The product (4.8 grams) was then isolated via rotary evaporation. Step 3: Introduction of the DCT Linker—(C12)2 Tetramer (FIG. 19) A 250 mL round bottom flask was charged with the amine (C12)2-QAC-tetramer intermediate (4.8 grams) and deionized water (100 mL) before being placed in an ice bath. The pH was then adjusted to 5 using HCl. In a separate vial, cyanuric chloride (0.48 grams) was dissolved in acetone (5 mL) before being chilled to 0-5° C. The cyanotic chloride solution was then added to the amine (C12)2-QAC-tetramer intermediate while stirring in the ice bath. After 2 hours of stirring the reaction was stopped and the product was crashed out of solution using an excess of acetone. The solution was poured off, dried, weighed (1.27 grams), and then the product was dissolved in acidic water (pH=3) and placed in a freezer for storage. Step 4: Confirmation of Nitro Reduction and Cyanuric Chloride Addition (FIG. 20) A small amount of the finished (C12)2QAC-tetramer was dissolved in t-BuOH and allowed to heat to 70° C. for 2 hours while stirring. After 2 hours the remaining t-BuOH was removed via roto-evaporation. 1H-NMR analysis indicated reaction completion. (c) Synthesis of C10 Imidazole Tetramer QAC-I (FIG. 21) Step 1: Quarternization with 1-decyl-2-methylimidozole (FIG. 22) The isocyanate terminated tetra-dendrimer intermediate (7 grams) and 1-Decyl-2-Methylimidazole (15 mL) were dissolved in MeOH (180 mL) in a 500 L round bottom flask. The flask was equipped with a glycol chilled condenser and placed in a 70° C. oil bath where the reaction was allowed to reflux for 5 days. The product was purified by crystallization from ethyl acetate/acetone. Step 2: Reduction of the Nitro Group (FIG. 23) A 500 mL round bottom flask was charged with the nitro imidazole QAC-tetramer (13.5 grams), MeOH (250 mL), H2O (20 mL), 12 M MCl (6 mL, 12 mole equivalents), and SnCl2 2H2O (8.23 grams, 6 mole equivalents). The reaction was allowed to stir for 16 hours at room temperature. The solution was then roto-evaporated to ˜20 mL total volume. 50 of DCM was added and the entire solution was transferred to a separation funnel. The reduced tetramer intermediate was phase transferred into the DCM layer. The aqueous layer was removed and the organic layer was treated with sodium carbonate to free up the base (—NH3+→—NH2). The product (13.5 grams) was then isolated via rotary evaporation. Step 3: Introduction of the DCT Linker (QAC-I tetramer) (FIG. 24) A 250 mL round bottom flask was charged with the amine imidazole QAC-tetramer intermediate (13.5 grams) and deionized water (100 mL) before being placed in an ice bath. The pH was then adjusted to 5 using HCl. In a separate vial, cyanuric chloride (1.71 grams) was dissolved in acetone (5 mL) before being chilled to 0-5° C. The cyanuric chloride solution was then added to the amine imidazole QAC-tetramer intermediate while stirring in the ice bath. After 2 hours of stirring the reaction was stopped and the product was crashed out of solution using an excess of acetone. The solution was poured off, dried, weighed (5.28 grams), and then the product was dissolved in acidic water (pH=3) and placed in a freezer for storage. Step 4: Confirmation of Nitro Reduction and DCT Introduction (QAC-I) (FIG. 25) A small amount of the finished imidazole QAC tetramer was dissolved in t-BuOH and allowed to heat to 70° C. for 2 hours while stirring. After 2 hours the remaining t-BuOH was removed via roto-evaporation. 1H-NMR analysis indicated reaction completion. Scale Up of the QAC-I Tetramer Based on the combined synthetic accessibility and high antimicrobial efficacy (FIG. 22), the imidazolium (QAC-I) tetramer was selected as the lead compound for fabric derivatization and as such its scale up was undertaken. This section summarizes the optimization of these scale-up efforts. (a) Scale Up and Purification of Tetrachlorointermediate The tetrachloro-intermediate was synthesized on ˜80 grams scale using the procedure shown in FIG. 26. The tetramer amino intermediate (61.6 grams, 65.88 mmol) was added to 300 mL of dichloromethane and 200 mL of tert-butyl alcohol and added to an addition funnel. 2-Chloroethylisocyanate (45 mL, 527 mmol) was dissolved in 30 mL of dichloromethane and 20 mL of tert-butyl alcohol in a 1000 mL round flask equipped with a stir bar. The 4-Mer amino intermediate solution was added dropwise to the isocyanate solution over 3 hours. After all of the 4-Mer amino intermediate was added, the flask was heated to 50° C. The addition funnel was then switched for a glycol-chilled condenser and the reaction was heated for 16 hours. Following completion of the reaction, excess solvent and 2-chloroethylisocyanate were removed in vacuo and triturated several times with acetone and heptane to yield an oily solid (84 grams, 61.9 mmol per flask). A procedure to purify this compound was developed. The procedure involves two cycles of dissolution of methanol and precipitation in acetone. The experimental details are presented below. A sample of tetrachlorointermediate (1 gram) was dissolved in 1 mL of methanol and precipitated out with acetone (two cycles). 1H-NMR analysis indicated high purity. The purification procedure was successfully scaled up to produce tens of grams of the purified tetrachloro-intermediate. (b) Scale Up of QAC-Tetramer (NH2 Form) The first step in the synthesis involved the production of the QAC-I tetramer in the nitro (NO2) form by the quaternization of the tetrachloro-intermediate with 1-decyl-2-methyl-imidazole as shown in FIG. 27. The experimental procedure is presented below. A 500 mL round bottomed flask was charged with methanol (300 mL) and equipped with a magnetic stir bar. To the flask was then added tetrachlorointermediate (25.63 grams, 18.9 mmol), followed by 1-decyl-2-methylimidazole (42.0 grams, 190 mmol). The resultant was stirred until completely homogenized, fitted with an ethylene glycol-cooled condenser and heated under reflux for 5 days. After 5 days of reaction time, the reaction mixture was cooled to ambient temperature and concentrated to approximately ¼ the original volume via rotary evaporation. The concentrated, slightly viscous, dark red solution was then slowly run into a vigorously stirred solution of acetone/ethyl acetate (1:1, 600 mL). A waxy precipitate formed from the solution, and the supernatant was decanted off. The waxy semi-solid residue was dissolved in minimal methanol, transferred to a round bottomed flask, and concentrated to near-dryness in vacuo. A small amount of methylene chloride (ca. 25 ml) was then added to the flask, and the solution was concentrated again to near-dryness. The methanol-DCM solvent exchange was repeated one more time, and the resultant was dried under high-vacuum after rotary evaporation, yielding a glassy, red solid (33.4 grams, 79%) which readily absorbed moisture from the air. A small sample of the obtained product was dissolved in deuterated dimethyl sulfoxide and placed briefly under high-vacuum to remove trace solvent. 1H-NMR analysis indicated reaction completion. In the second step of the synthesis, the NO2 group was reduced with tin (II) chloride using SnCl2 as the reducing agent (FIG. 28). The reaction provides quantitative conversion with only solvent contamination in the final product. The experimental details are presented below. A round bottomed flask was charged with Nitro-QAC-IM (5.0 grams, 2.23 mmol) and N-methylpyrrolidone (15 mL). The resultant was stirred magnetically until completely homogenized. Tin(II) chloride (2.10 grams, 11.1 mmol) was then added, followed by 37% hydrochloric acid (1.85 mL). The resultant was heated to 65° C. and left to proceed for two hours. After this time, the reaction mixture was removed from heat and allowed to cool to ambient temperature. The reaction mixture was then slowly run into stirring ice-cold acetone (150 mL). An orange-yellow precipitate formed that congealed into a gum-like ball. The supernatant was decanted and discarded, and the precipitate was rinsed with acetone. The precipitate was then dissolved in a minimal amount of methylene chloride, and precipitated once again into acetone as described previously. The collected solid was then dried thoroughly in vacuo, resulting in an orange, hygroscopic powder (4.4 g, 89%) 1H-NMR analysis indicated reaction completion. Synthesis of the 3rd Generation Dendrimer Compounds and Intermediates (Octamers) The first step in the synthesis of the 3rd generation dendrimers involved the production of an octa-ester intermediate from the tetramer intermediate containing four amino groups by treatment with methyl acrylate (FIG. 29). The second generation branched dendrimer containing four amino groups (˜54 mmol) was added to 100 L of methanol in a round bottom flask equipped with a stir bar. Methyl acrylate (864 mmol, 77.5 mL) was then added to the flask and the flask was equipped with a glycol-chilled condenser. The mixture was allowed to reflux for 16 hours while stirring. The solvent and remaining methyl acrylate were removed in vacuo over a period of 6 hours. In the second step, the octaester intermediate was reacted with 1,3-diaminopropane to afford an octaamino intermediate (FIG. 30). The octaester intermediate (˜54 mmol) was added to a 250 mL round bottom flask in addition to ethanol (50 mL) and 1,3-Diaminopropane (864 mmol, 72 mL). The flask was then equipped with a stir bar and a glycol chilled condenser. The mixture was allowed to reflux for 16 hours while stirring. Once the reaction was finished, the solvent and remaining 1,3-diaminopropane were removed using vacuum distillation over 3 days (1H-NMR analysis indicated good purity). In the third step, the octaamino intermediate was reacted with 2-chloroethyl isocyanate to afford the octachloro compound shown in FIG. 31. In a typical experimental procedures, a 250 mL round bottom flask was charged with the third generation branched dendrimer capped with 1,3-diaminopropane (12.75 mmol, ˜25 grams) followed by tert-butanol (39 grams) and 2-Chloroethyl isocyanate (18 mL). The flask was equipped with a stir bar and a glycol-chilled condenser. The reaction was allowed to proceed under reflux conditions for 16 hours while stirring. Synthesis of the 4th Generation Dendrimer Compounds and Intermediates (Hexadecamers) The first step of this synthetic sequence involved the production of the hexadecaester intermediate as shown in FIG. 32. In a typical experimental procedure, a 250 mL round bottom flask was charged with the previously produced, third generation branched dendrimer containing eight amino groups (12.75 mmol, 25 grams) followed by ethanol (50 mL) and methyl acrylate (408 mmol, 37 mL). The flask was equipped with a stir bar and a glycol-chilled condenser. The reaction was allowed to proceed under reflux conditions for 16 hours while stirring. Following completion of the reaction, excess solvent and methyl acrylate were removed in vacuo over 6 hours. 1H-NMR spectrum indicated the formation of the target product as a major component of the reaction mixture. B. Fabric Derivatizations (Functionalizations) with QAC-Dendrimers—Examples Two distinct fabric derivatization protocols were developed: (1) direct functionalization where the fiber was reacted with the dichlorotriazine form of the dendrimer and (2) reverse functionalization where the fabric was first activated with cyanuric chloride and then reacted with the amino form of the dendrimer. The two methodologies are illustrated for the cotton fabric in FIG. 33. The direct functional nation methodology (red) uses a one-step protocol in aqueous solution, but suffers from the competing hydrolysis of the DCT linker which results in a significant non-covalent attachment of the dendrimer to the fabric. The reverse fictionalization methodology (blue) uses a two-step protocol in N-methylpyrollidone (NMP) which circumvents the DCT hydrolytic issue and allows the bath to be re-used. The experimental procedures associated with the two methodologies are presented below. Direct Functionalization Methodology The fabrics are first desized by treatment with sodium carbonate. In a typical experimental procedure, a 1 L beaker was charged with deionized water (900 mL) and sodium carbonate (100 grams, 0.943 mol) and equipped with an overhead stirrer. To the desizing bath was then added 100 cotton swatches cut into 5 cm diameter circles. The mixture was heated to 60° C. and gently agitated for 6 hours with an overheard stirrer. After the completion of the desizing wash, the swatches were removed and rinsed with deionized water until neutral pH. The swatches were laid out fiat and allowed to air-dry completely. After desizing, the fabrics are treated with the DCT form of the dendrimer (tetramer) at a dendrimer concentration of 0.3 mg/mL. In a typical experimental procedure, a solution of 120 mg dendrimer in 400 mL of water was used to treat 20 swatches (4.8 cm in diameter) for 12 hrs, under mechanical marcusparker@example.com. After this time, sodium carbonate (100 mg) was added and the resulting mixture was further stirred for 6 marcusparker@example.com. The swatches were removed and rinsed with DI until neutral pH. The swatches were laid out flat and allowed to air-dry completely. The presence of the QAC on the fabric surface was determined by fluorescein staining (see below). Reverse Functionalization Methodology The swatches were first desized as described above. This was followed by fabric activation with cyanuric chloride and subsequent functionalization with the amino form of the dendrimer. The experimental details of these two steps are presented below. (a) Fabric Activation with Cumuric Chloride A 500 ml round bottomed flask was charged with NMP (250 mL, 1.03 g/mL, 2.60 mol) and equipped with a magnetic stir bar. To the vessel was then added cyanuric chloride (60 mg, 0.325 mmol), which was stirred until completely dissolved. After complete dissolution of the cyanuric chloride, desized cotton swatches were added to the reaction mixture and stirred for ten minutes. After ten minutes, the supernatant liquid was decanted and discarded. The activated cotton swatches were then rinsed three times successively with acetone and allowed to air-dry completely. (b) Derivatization of Activated Cotton A 500 ml round bottomed flask was charged with 1-methyl-2-pyrrolidone (250 mL, 1.03 g/mL, 2.60 mol) and equipped with a magnetic stir bar. To the vessel was then added NH2-QAC-IM (100 mg, 0.045 mmol) and sodium carbonate (25 mg, 0.235 mmol). The mixture was allowed to stir until the QAC had completely dissolved. Activated cotton swatches were then added to the vessel, and the mixture was marcusparker@example.com for 16 hrs. or at 90° C. for 1 hr. The resulting cotton swatches were rinsed three times successively with acetone and allowed to air-dry completely. Colorimetric Method for QAC-Surface Assessment: Fluorescein Staining In order to assess the derivatization efficiency and maximization of QAC population on the surface of the fabrics, a methodology to assess the relative QAC-surface concentration was developed. The method involves the staining of the fabric with fluorescein (anion) which exchanges for the QAC chloride counter ion (stoichiometry of QAC group to fluorescein=1:1). In a typical procedure, swatches were cut in half and then submerged in a stain solution (1% w/v aqueous solution of fluorescein sodium salt) for ten minutes. After the staining, the swatches were rinsed thoroughly with deionized water until the rinsate was completely colorless. The half-swatches were then air dried and photographed (FIG. 34). The analysis involves the evaluation of the relative color intensities to determine the increase in QAC loading and/or maximization of QAC population on the fabric surface. C. Antimicrobial Testing of Fabrics Derivatized with QAC-Dendrimers The antimicrobial testing during this effort was performed. The evaluation of the AM efficacy has been performed using a standard method, based on the AATCC 100 protocol. An overview of the test method is shown in FIG. 35. The experimental procedure starts with 1 mL of a bacterial culture (S. Aureus representative for Gram positive bacteria or K. Pneumoniae representative for Gram negative bacteria) which is inoculated to 2-3 fabric swatches (full absorption). The mixture is incubated for selected times. The mixture is then diluted with PBS and a bacterial culture (agar plate) is performed. The colony forming units (CFUs) are determined and the results are expressed as kill efficiency (percentage kill relative to the initial concentration). Structure Activity Relationship and Downselection of Best Performers In order to assess the effect of the structure of dendrimer QAC group on the antimicrobial (AM) activity the QAC-dendrimers were attached to cotton fabric. The base architecture and the QAC structures are shown in FIG. 36. The AM efficacy of the derivatized cotton fabrics was determined using the AATCC 100 methodology. The antimicrobial activity was evaluated against S. Aureus at three timepoints (T=0, T=4 hrs, T=24 hrs). The results are summarized in Table 1: TABLE 1 AM Efficacy Results of Various QAC-dendrimers (Cotton Fabric) % Kill at % Kill at Compound 4 hours 24 hours QAC-I >99 >99 QAC-4 >99 62 QAC-C18 78 11 QAC-D −38 N/A Based on the results shown in Table 1, QAC-I and QAC -4 derivatized cotton swatches were selected for farther AM evaluation against the Gram negative bacteria K. Pneumoniae. Both fabrics showed very high efficacy as shown in FIG. 37. Based on the high efficacy against both Gram positive and Gram negative bacteria, the imidazolium dendrimer (QAC-I) was selected for further AM evaluation. AM Efficacy of Dendrimer Derivatized NYCO and Polyester Fabrics The QAC4 dendrimer was used to derivatize NYCO and polyester fabrics using the direct functionalization protocol (FIG. 33). The fabrics were tested for their AM activity against the Gram positive bacteria, S. Aureus using the AATCC 100 protocol (˜1×106 CFU/mL; 4 hrs. and 24 hrs. of incubation). The results are shown in FIG. 38. As shown in FIG. 38, both fabrics showed high antibacterial efficacy (>99% kill at 4 hrs.). This result indicated that QAC-I can be used as an AM treatment for multiple fabrics. Broad Spectrum AM Testing of OAC-1 Dendrimer Derivatized Cotton Fabrics The QAC-I derivatized cotton fabrics were evaluated against several strains of Gram positive and Grain negative bacteria and one fungus (C. Albicans). The results are summarized in Table 2. The results indicated very high efficacy against all pathogens and suggested that QAC-I derivatized fabrics can be used against a broad spectrum of bacteria and fungi. Comparative AM Testing Against Silver-Derivatized Textiles The silver fabrics are considered to be the state-of the art in the realm of AM textiles. Two silver-based consumer products (cotton fabrics) were selected for evaluation of their AM properties compared to those of QAC-I derivatized cotton. The first material comprised a silver-shirt which contained silver nanoparticles. The second material was a silver-towel which contained a permanent coating of silver ions. Swatches of both products were generated and the antimicrobial efficacy was tested using the AATCC 100 protocol (K. Pneumoniae at 4, 24 and 48 hrs. time points). The results are summarized in Table 3: TABLE 3 Comparative AM Testing of QAC-I Cotton Against Silver-based Fabrics Efficacy (% kill) at timepoint Fabric 0 hrs. 4 hrs. 24 hrs. 48 hrs. Silver >99.2 87.2 <0 <0 Shirt Silver >99.2 >99.2 98.3 93.2 Towel QAC-I 99 >99.6 >99.6 97.3 Cotton As shown in Table 3, the QAC-I dendrimer derivatized cotton shows similar or better efficacy compared to that of the Silver-towel fabric and much better efficacy than that of the Silver-shirt fabric. At 4 hours and 24 hrs., the efficacies of the QAC-I cotton are similar to those of the silver-towel. However, at 48 hours, the QAC-I cotton maintained high efficacy (97.3% kill) while the silver towel efficacy dropped (93.2% kill). D. Biocompatibility Testing of Fabrics Derivatized with QAC-Dendrimers—Examples The biocompatibility properties of the QAC-dendrimer derivatized cotton fabrics were evaluated using two standard methods: (a) cytotoxicity assay and (b) primary skin irritation model. The results indicated biocompatibility with no cytotoxicity or skin irritation. The experimental procedures and details of the results are presented below. Cytotoxicity Testing The cytotoxicity of selected fabrics was evaluated using a GLP protocol based on the L929 Agar Diffusion test, direct contact method. A brief description of the protocol is provided below. The potential biological reactivity of a mammalian cell culture (mouse fibroblast L929) in response to exposure to the test articles (cotton fabrics) was determined. The maintenance medium of L929 cells grown in 60 mm plates was replaced with a mixture of agar and cell culture medium in 3 replicates. The test articles and control articles (˜100 mm2) were applied directly to the surface of the agar, and the cells were incubated for 48 hrs. at 37° C. The biological reactivity of the cells following the exposure to the test article and control articles were visually observed with a microscope at 24 and 48 hrs. and graded on a scale of 0 to 4 (Table 4). TABLE 4 Grades of Biological Reactivity Grade Reactivity Description of Reactivity Zone 0 None No detectable zone around or under specimen. 1 Slight Some malformed or degenerated cells under specimen. 2 Mild Zone limited to area under specimen. 3 Moderate Zone extending specimen size up to 1.0 cm. 4 Severe Zone extending farther than 1.0 cm beyond the specimen. Two cotton fabrics derivatized with QAC-I and QAC-4 dendrimers were evaluated for cytotoxicity (desized cotton was used as control). The results are summarized in Table 5: As shown in Table 5, cells exposed to underivatized and derivatized cotton fabrics showed only mild biological reactivity. Based on the criteria of the protocol and the ISO10993-5 guidelines, the QAC-dendrimer derivatized fabrics meet the requirement of the test and are not considered to have a cytotoxic effect. Primary Skin Irritation Testing Cotton fabrics derivatized with QAC-I dendrimer was evaluated at Toxikon for skin irritation using a GLP protocol based on “Direct Primary Skin Irritation Test—ISO”. The test article was evaluated for its potential to produce primary skin irritation after a single topical minimum 4 hour application to the skin of New Zealand White rabbits. Test sites were scored for erythema and/or edema. The results are summarized in Table 6: TABLE 6 Skin Reaction Scores in the Primary Skin Irritation Test Test Sites Erythema/Edema Erythema/Edema Erythema/Edema Erythema/Edema 40 Minutes** 24 Hours* 48 Hours* 72 Hours* Animal # Site 1 Site 2 Site 1 Site 2 Site 1 Site 2 Site 1 Site 2 Total† 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.0 Control Sites Erythema/Edema Erythema/Edema Erythema/Edema Erythema/Edema 80 Minutes** 24 Hours* 48 Hours* 72 Hours* Animal # Site 1 Site 2 Site 1 Site 2 Site 1 Site 2 Site 1 Site 2 Total† 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.0 *Readings **60 minute †(Erythema Edema Scores/ Primary indicates data missing or illegible when filed No signs of erythema or edema were noted at any observation period. Based on the criteria of the protocol, the test article was considered a negligible irritant. E. Laundering Testing—Examples In order to assess the robustness of the QAC-dendrimer fabric finish to laundering, several studies were performed to assess the effect of laundering on the QAC surface population and on the antibacterial efficacy. A standard methodology based on the accelerated laundering conditions of the AATCC 61 test method (1 cycle of 45 minutes at 49° C. is equivalent to 5 standard cycles) was used The effects of the following parameters were evaluated: detergent type, QAC-dendrimer additive (Tide detergent), temperature and detergent concentration. The results of these studies are presented below. Note: these studies were performed with fabrics functionalized by the reversed protocol (FIG. 33) as the fabrics derivatized with the direct protocol contained relatively large amounts of non-covalent bound dendrimer which is removed during laundering). Effect of Detergent Type: Non-Ionic (Tween-20) vs. Anionic (Tide) (a) Characterization of QAC Surface Groups Cotton fabric round swatches (5 cm in diameter) derivatized with the QAC-I dendrimer were washed using 1 accelerated cycle (45 minutes at 49° C., using a standard detergent (Tide—contains anionic surfactants) and a non-ionic detergent (Tween-20). The detergent concentration was 0.23% w/v and a ratio of 47.5 mL of solution per swatch was used. The resulting fabrics were rinsed with DI marcusparker@example.com., air dried and then analyzed by fluorescein staining to assess the QAC population
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