Bio-inspired Hydroxyapatite/Gelatin Transparent Nanocomposites  

作　　者：谭军军 WU Mingchen LI Yuzhe PENG Jiamei 熊焰 TAN Junjun;WU Mingchen;LI Yuzhe;PENG Jiamei;XIONG Yan(Hubei Province Key Laboratory of Green Materials for Light Industry,Collaborative Innovation Center for Green Light-weight Materials and Processing,Hubei University of Technology,Wuhan 430068,China)

机构地区：[1]Hubei Province Key Laboratory of Green Materials for Light Industry,Collaborative Innovation Center for Green Light-weight Materials and Processing,Hubei University of Technology,Wuhan 430068,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2024年第2期298-308,共11页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Natural Science Foundation of Hubei Province(No.2018CFB710);the Opening Fund of Hubei Provincial Key Laboratory of Green Materials for Light Industry(No.202107B07);Hubei University of Technology。

摘　　要：Hydroxyapatite(HA)nanoparticles impart outstanding mechanical properties to organicinorganic nanocomposites in bone.Inspired by the composite structure of HA nanoparticles and collagen in bone,a high performance HA/gelatin nanocomposite was first developed.The nanocomposites have much better mechanical properties(elongation at break 29.9%,tensile strength 90.7 MPa,Young’s modulus 5.24 GPa)than pure gelatin films(elongation at break 9.3%,tensile strength 90.8 MPa,Young’s modulus 2.5 GPa).In addition,the composite films keep a high transmittance in visible wavelength range from 0%to 60%of the HA solid content.These differences in properties are attributed to the homogeneous distribution of HA nanoparticles in the gelatin polymer matrix and the strong interaction between the particle surfaces and the gelatin molecules.This protocol should be promising for HA-based nanocomposites with enhanced mechanical properties for biomedical applications.

关 键 词：HYDROXYAPATITE NANOCOMPOSITES sodium citrate GELATIN colloidal stability 

分 类 号：TB332[一般工业技术—材料科学与工程]