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Table 4 Comparing antimicrobial activity of various modified chitosan derivatives with those in the current study

From: A novel 1,3,4-thiadiazole modified chitosan: synthesis, characterization, antimicrobial activity, and release study from film dressings

New chitosan derivatives

Characterized by

Biological activities

Reference

Functionalized chitosan with 1,3,4-thiadiazole/2-methyl-1,3,4-thiadiazole/and 2-phenyl-1,3,4-thiadiazole

FT-IR, 13C NMR, and elemental analyses

Antifungal activity against three phytopathogenic fungi including Colletotrichum lagenarium, Phomopsis asparagi, and Monilinia fructicola

[59]

5-phenyl-1,3,4oxadiazole-2-thiol/chitosan derivatives

FT-IR, TGA, and XRD

Antifungal activity against Alternaria alternate and Fusarium sp.

[70]

thiosemicarbazide-chitosan derivative

FT-IR, 1H NMR, elemental analysis, XRD, and differential scanning calorimetric (DSC)

Antibacterial activity against Escherichia coli

[71]

Functionalized chitosan with 5-amino-1,3,4-thiadiazole-2-thiol; 5-phenyl-1,3,4-oxadiazole-2-thiol; 5-(4 chlorophenyl)-1,3,4-thiadiazole-2-thiol

FT-IR and 1H NMR

- Antibacterial activity against Escherichia coli, Aeromonas hydrophila, Shegilla sp., Staphylococcus aureus, Bacillus subtilis

- Antifungal activity against Candida albicans and Aspergillus niger

[69]

Functionalized chitosan with ethyl/benzyl thiadiazole derivatives

1H NMR,13C-NMR, FT-IR, TGA, Elemental analysis, Mass spectrum, and UV–vis spectroscopy

- Antibacterial activity against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, and Pseudomonas aeruginosa

- Antifungal activity against Candida albicans

Current study