title: Characterization and toxicology evaluation of chitosan nanoparticles on the embryonic development of zebrafish, Danio rerio.
abstract: In the present study, chitosan nanoparticles were prepared, characterized and used to evaluate the embryonic toxicology on zebrafish (Danio rerio). The average particle size of chitosan nanoparticles was 84.86nm. The increased mortality and decreased hatching rate was found in the zebrafish embryo exposure to normal chitosan particles and chitosan nanoparticles with the increased addition concentration. At 120h post-fertilization (hpf), the rate of mortality were 25.0 and 44.4% in the groups treated with chitosan nanoparticles and normal chitosan particles at 250mg/L, respectively. At 72hpf, the hatching rate in the groups treated with normal chitosan particles were lower (P<0.01) at 300 and 400mg/L than those of the corresponding control groups, respectively. However, there were no significant differences between the groups treated with chitosan nanoparticles and the control groups across all the addition concentrations. More abundant typical malformation of embryos was observed in the groups treated with normal chitosan particles compared with those treated with chitosan nanoparticles. The LC50 (medium lethal concentration) of chitosan nanoparticles was 280mg/L at 96hpf and 270mg/L at 120hpf. As for normal chitosan particles, the LC50 was 257mg/L at both 96hpf and 120hpf. The TC50 (medium teratogenic concentration) of the zebrafish treated with chitosan nanoparticles and normal chitosan particles were 257mg/L and 137mg/L, respectively. It indicated that the chitosan nanoparticles were relatively more secure compared with normal chitosan particles.
authors.affiliation: Key Laboratory for Food Microbial Technology of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310035, China.
authors.forename: Yanbo
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory for Food Microbial Technology of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310035, China.
authors.forename: Jinru
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Key Laboratory for Food Microbial Technology of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310035, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Liu
authors.affiliation: Institute of Watershed Science and Environmental Ecology, Wenzhou Medical University, Wenzhou 325035, China.
authors.forename: Changjiang
authors.initials: C
authors.lastname: Huang
authors.affiliation: Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China.
authors.forename: Deqing
authors.initials: D
authors.lastname: Zhou
authors.affiliation: Key Laboratory for Food Microbial Technology of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310035, China. Electronic address: fulinglin@mail.zjgsu.edu.cn.
authors.forename: Linglin
authors.initials: L
authors.lastname: Fu
mesh_terms: D000818:Animals; D048271:Chitosan / Q000737:chemistry / Q000633:toxicity*; D004625:Embryo, Nonmammalian / Q000187:drug effects; D053758:Nanoparticles / Q000737:chemistry / Q000633:toxicity*; D064793:Teratogenesis / Q000187:drug effects*; D015027:Zebrafish / Q000002:abnormalities
chemical_list: D048271:Chitosan
keywords: Chitosan; Nanoparticle; Toxicology; Zebrafish