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  Indian J Med Microbiol
 

Figure 1: Reaction mechanism of N-succinimidyl-3-(2-pyridyldithio)- propionate (2) with chitosan, (1) resulting in chitosan-3-(2-pyridyldithio) propionyl (CS-PDP) (3) and hydroxysuccinimide. CS-PDP reacts with mercaptoetilamine salt, (4) producing chitosan-3-(2-Aminoethyldithio) propionyl-chitosan-3-(2-aminoethyldithio) propionyl (5) and pyridine- 2-thione (6)

Figure 1: Reaction mechanism of N-succinimidyl-3-(2-pyridyldithio)- propionate (2) with chitosan, (1) resulting in chitosan-3-(2-pyridyldithio) propionyl (CS-PDP) (3) and hydroxysuccinimide. CS-PDP reacts with mercaptoetilamine salt, (4) producing chitosan-3-(2-Aminoethyldithio) propionyl-chitosan-3-(2-aminoethyldithio) propionyl (5) and pyridine- 2-thione (6)