Further investigation into the classes of substances suggests that organic and inorganic small molecules, protein/peptide sequences, polymers, elements, and alloys are the major classes of importance in the field of antibacterials. Figure represents the growth of various substance classes in the last decade. The number of substances classified as organic and inorganic small molecules is 40-50 times higher than the next class of substances -protein/peptide sequences. Other classes such as polymers, elements, and alloys, while important, still account for a much smaller fraction of substances being used in the field of antibacterials. Amongst the major classes, organic/inorganic small molecules show a marginal decrease post-2020 indicating the shift in interest from small molecules towards more novel/alternative forms of antibiotics such as materials and forms. Figures 13 depicts the distribution of substances from journal and patent publications, respectively. Overall, the distribution varies slightly between journals and patents where the percentage of small molecule substances is slightly lesser in patents when compared to journal publications whereas peptide-based substances are reported more in patent publications.