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首页> 外文期刊>Journal of Applied Polymer Science >Preparation of CaCO_3-Based Biomineralized Polyvinylpyrrolidone-Carboxymethylcellulose Hydrogels and Their Viscoelastic Behavior
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Preparation of CaCO_3-Based Biomineralized Polyvinylpyrrolidone-Carboxymethylcellulose Hydrogels and Their Viscoelastic Behavior

机译：基于CaCO_3的生物矿化聚乙烯吡咯烷酮-羧甲基纤维素水凝胶的制备及其粘弹性行为

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摘要

In the blend of natural and synthetic polymer-based biomaterial of polyvinylpyrrolidone (PVP) and carboxymethylcellulose (CMC), fabrication of CaCO_3 was successfully accomplished using simple liquid diffusion technique. The present study emphasizes the biomimetic mineralization in PVP-CMC hydrogel, and furthermore, several properties of this regenerated and functionalized hydrogel membranes were investigated. The physical properties were studied and confirmed the presence of CaCO_3 mineral in hydrogel by Fourier transform infrared spectroscopy and Scanning electron microscopy. Moreover, the absorptivity of water and mineral by PVP-CMC hydrogel was studied to determine its absorption capacity. Further, the viscoelastic properties (storage modulus, loss modulus, and complex viscosity) of mineralized and swelled samples (time: 5-150 min) were measured against angular frequency. It is interesting to know the increase of elastic nature of mineralized hydrogel filled with CaCO_3 maintaining the correlation between elastic property and viscous one of pure hydrogel. All these properties of biomineralized hydrogel suggest its application in biomedical field, like bone treatment, bone tissue regeneration, dental plaque and tissue replacement, etc.
机译：在聚乙烯吡咯烷酮（PVP）和羧甲基纤维素（CMC）的天然和合成聚合物基生物材料的共混物中，使用简单的液体扩散技术成功完成了CaCO_3的制备。本研究强调PVP-CMC水凝胶中的仿生​​矿化作用，此外，还研究了这种再生和功能化水凝胶膜的一些特性。通过傅立叶变换红外光谱和扫描电子显微镜研究了其物理性质，并确认了水凝胶中CaCO_3矿物的存在。此外，研究了PVP-CMC水凝胶对水和矿物质的吸收率，以确定其吸收能力。此外，针对角频率测量矿化和溶胀的样品（时间：5-150分钟）的粘弹性质（储能模量，损耗模量和复数粘度）。有趣的是，充满CaCO_3的矿化水凝胶的弹性增加，同时又保持了纯水凝胶的弹性和粘性之间的相关性。生物矿化水凝胶的所有这些特性表明其在生物医学领域的应用，例如骨骼治疗，骨骼组织再生，牙菌斑和组织置换等。

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