“…Chitosan NPs reveal completely new or improved biological activities if compared with bulk chitosan due to altered physicochemical characteristics like size, surface area, cationic nature, active functional groups, higher encapsulation efficiency etc (Saharan et al, 2013). Chitosan NPs have been investigated as a carrier for active ingredient delivery for various applications due to their biocompatibility, biodegradability, high permeability, cost-effectiveness, non-toxicity and excellent film forming ability (Shukla et al, 2013) antimicrobial and insecticidal activities (Yin et al, 2010;Zeng et al, 2012;Ma et al, 2013;Chen et al, 2014).…”