formaldehyde is commonly used as a preservative for tissue specimens.
commonly used as a preservative for tissue specimens?
formaldehyde
formaldehyde-based crosslinking is exploited in chip-on-chip or chip-sequencing genomics experiments, where dna-binding proteins are cross-linked to their cognate binding sites on the chromosome and analyzed to determine what genes are regulated by the proteins. formaldehyde is also used as a denaturing agent in rna gel electrophoresis, preventing rna from forming secondary structures. a solution of 4% formaldehyde fixes pathology tissue specimens at about one mm per hour at room temperature.





























section::::uses.:niche uses.:drug testing.





























formaldehyde and an 18 m (concentrated) sulfuric acid makes marquis reagent—which can identify alkaloids and other compounds.





























section::::uses.:niche uses.:photography.
formaldehyde
like many other techniques, expansion microscopy also possesses many potentials in the medical and diagnostic fields. expansion microscopy improves the resolution of light microscopy by physically expanding the specimens. when this technique is applied to the clinical tissue samples nanoscale imaging of human tissue specimens. first, expansion pathology is used to convert clinical samples into a compatible state for the expansion microscopy. this process can be used for optical diagnosis of kidney minimal-change disease, early breast neoplastic lesions and to spot the difference of normal human tissue specimens to cancer tissue specimens, enabling a routine use of clinical research.
expansion microscopy