Study on the synergetic degradation of chitosan with ultraviolet light and hydrogen peroxide

Enhanced Enzymatic Hydrolysis of Chitosan by Surfactant Addition

“…The Schales reagent was added to the chitosan sample solution and then heated, causing a redox reaction between the Schales reagent and the aldehyde group so that the solution color turned from yellow/red to transparent. The scanning range was recorded between 350 and 500 nm [26,27].…”

Graphene oxide-reinforced biodegradable genipin-cross-linked chitosan fluorescent biocomposite film and its cytocompatibility

“…For the original CS, a strong absorption band was evident around 250 nm, which was caused by the n→σ* transition for the amino groups of CS. 32 After incorporating the GO, a clear red shift toward longer wavelength, around 320 nm, could . In the spectrum of CS/ GO, both of the above peaks disappeared, which suggested that interactions existed between CS and GO.…”

Biological Effects and Extraction Processes Used to Obtain Marine Chitosan

“…The MW of chitosan decreases with increasing irradiation time when UV (Wang et al 2005) and -ray (Kang et al 2007) are used in combination with H 2 O 2 . However, when these radiations are employed alone the reduction of MW of chitosan with irradiation time reaches a plateau (Wang et al 2005;Kang et al 2007;Makuuchi, 2010). …”

“…However, the formation of radical groups is inefficient when H 2 O 2 is used alone (Wang et al 2005;Huang et al 2010). …”