In this paper, N-methylene phosphonic acid chitosan (NPCS-PEI) was synthesized from chitosan, phosphorous acid, formaldehyde and hyperbranched polyethyleneimine (PEI), and Cu and Pb removal performance was examined in aqueous solution. NPCS-PEI exhibited three-dimensional porous architectures, with a ...
Objective: To prepare a novel vaccine carrier particle system containing ovalbumin(OVA)nanoparticles(NPs)coated with N-trimethyl chitosan chloride(TMC). 目的:以N-三甲基壳聚糖盐酸盐(N-trimethyl chitosan chloride,TMC)为材料制备新型纳米粒(nanop-articles,NPs),包裹卵清蛋白(ovalbumin,OVA),以提高卵清蛋白...
In this work, N-methylene phosphonic chitosan (NPCS) was synthesized by using aone-step reaction that allowed homogeneous modifications without sharp decrease ofits properties. 本实验以甲醛和磷酸为反应试剂,采用均相反应法制备壳聚糖(CS)的磷酸化衍生物—磷酸化壳聚糖(NPCS)。2...
N-Methylene phosphonic chitosan (NMPCS), an amphiphilic macromolecule with powerful chelating ability of Ca 2+ ions, was synthesized and characterized. The physicochemical properties of NMPCS and the interactions between NMPCS and plasmid DNA were investigated by FTIR, 13C NMR, X-ray, agarose gel...
N-methylene phosphonic chitosan:A novel soluble derivative[J]. Carbohydrate Polymers, 2001,44(1):1-8.A Heras,N.M Rodríguez,V.M Ramos,E Agulló. N -methylene phosphonic chitosan: a novel soluble derivative[J]. Carbohydrate Polymers . 2001 (1)...
N-methylene phosphonic chitosanHLBCondutivitySurface tensionN -methylene phosphonic (NMPC) chitosan was studied by several techniques to determine their properties in aqueous solution and its capacity to emulsify edible oils. The phosphonic groups are all equivalent and their ionization constants were ...
Zhu D, Yao K, Bo J, Zhang H, Liu L, Dong X, Song L, Leng X (2010) Hydrophilic/lipophilic N -methylene phosphonic chitosan as a promising non-viral vector for gene delivery. J Mater Sci-Mater M 21(1):223–229Dunwan Zhu,Kangde Yao,Jingen Bo,Hailing Zhang,Lanxia Liu,Xia ...
A modified chitosan (N-methylene phosphonic Chitosan, NMPC) was synthesized to improve solubility and ability to bind calcium ion. The properties of the raw material chitosan and its derivative NMPC were characterized using FTIR, 1H-NMR.The aim of this study was to enhance the compressive CPC ...
N-Methylene phosphonic chitosan(NMPC)was modified with poly(ethyleneglycol)-aldehyde(PEG-CHO)with different molecular weight(200,2000 and 8000)by reductive amination.The degree of substitution(DS)was determined by elemental analysis.Its chemical identity was characterized by FT-IR,~1H NMR and~(13)...
Geng Yanli,Ruan Ziwei,Li Dongxu.Preparation of a novel calcium phosphate cement using N-methylene phosphonic chitosan as a gelling agent[J].J Wuhan Univ Techn Mater Sci Ed,2005,20(S):304Geng Yanli,Ruan Ziwei,Li Dongxu.Preparation of a novel calcium phosphate cement using N-methylene ...