Fig. 2From: Pterocarpus marsupium Roxb. heartwood extract synthesized chitosan nanoparticles and its biomedical applicationsZeta potential distribution of chitosan nanoparticles (CNPs) loaded with Pterocarpus marsupium (PM) stem bark extract concentrations. a CNPs. b PM-CNPs-1. c PM-CNPs-2. d PM-CNPs-3Back to article page