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<title cf:type="text"><![CDATA[ -->木质纤维基凝胶材料在生物医用领域的应用]]></title>
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<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Cellulose Nanocrystal Reinforced Chitosan-Gelatin-Hydroxyapatite Scaffold for Bone Defect Repair]]></title>
<link><![CDATA[http://zgzzxb.ijournals.cn/zzxben/ch/reader/view_abstract.aspx?file_no=202303006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Nanocellulose has excellent characteristics such as high modulus， high strength， and biocompatibility， demonstrating potential applications in the biomedical field. This article aims to use cellulose nanocrystal （CNC） to address issues in the application of bone defect repair scaffolds， such as insufficient strength of natural polymer scaffolds and decreased mechanical strength during the degradation process. Firstly， the chitosan-gelatin-hydroxyapatite composite material simulating the Haversian system in natural bone was formed by self-organization. Then the strengthening effect of CNC on chitosan gel was studied. With CS-CNC composite gel as the structural framework， and chitosan-gelatin-hydroxyapatite composite as the biomimetic part， a combination hydrogel could be formed by interfacial fusion. Finally， the degradation of CS-CNC composite gel was studied <i>in vitro</i>. With the biomimetic structure design and the enhancement of natural polymer scaffold， this work aimed to explore the role of CNC in improving the performance of scaffolds， and explore the potential of nanocellulose in the application in biomedical field.]]></description>
<pubDate>2023/9/20 0:00:00</pubDate>
<category><![CDATA[木质纤维基凝胶材料在生物医用领域的应用]]></category>
<author><![CDATA[NIE Jingyi,LIAO Jianfei,LIU Xinming,LIANG Jiantao,ZHANG Le,JIAO Tingting,SUN Binrong,ZHANG Meiyun]]></author>
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<atom:name>NIE Jingyi,LIAO Jianfei,LIU Xinming,LIANG Jiantao,ZHANG Le,JIAO Tingting,SUN Binrong,ZHANG Meiyun</atom:name>
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<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Preparation of Cellulose Aerogel@ZIF-8 Composite by<i> In-situ</i> Growth Method and Its Immobilization for Lysozyme]]></title>
<link><![CDATA[http://zgzzxb.ijournals.cn/zzxben/ch/reader/view_abstract.aspx?file_no=202303007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[In recent years， with the rapid development of biochemistry and life sciences， the enzyme engineering has become a research hotspot. However， free enzymes have greatly limited its development and application due to its disadvantages such as sensitive structure， easy inactivation and failure， and difficulty in recycling. Immobilization of enzymes into specific carriers by means of adsorption or encapsulation can improve enzyme activity and stability， making further development possible. In this study， structurally regular cellulose aerogel@ZIF-8 composites were prepared using <i>in situ</i> growth method and lysozyme was successfully immobilized by multiple interactions between ZIF-8 and protein. Subsequently， the effects of pH value， NaCl concentration， adsorption time and adsorption concentration on the adsorption performance of the composites on the immobilization performance were investigated. The experimental results showed that the immobilization amount of cellulose aerogel@ZIF-8 lysozyme was 111.3 mg/g， the kinetics equilibrium can be completed within 40 minutes. In addition， the results of the catalytic experiments revealed that lysozyme immobilized by cellulose aerogel@ZIF-8 had better catalytic effect compared to the free enzyme. This study provides new ideas for the design and synthesis of sustainable and high performance immobilized materials.]]></description>
<pubDate>2023/9/20 0:00:00</pubDate>
<category><![CDATA[木质纤维基凝胶材料在生物医用领域的应用]]></category>
<author><![CDATA[YANG Yuxuan,WANG Yue,LIU Xueqian,CHENG Zhuqing,HE Xiaolong,QIAN Liwei]]></author>
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<atom:name>YANG Yuxuan,WANG Yue,LIU Xueqian,CHENG Zhuqing,HE Xiaolong,QIAN Liwei</atom:name>
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<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Recent Developments of Hydrogel-encapsulated Cells]]></title>
<link><![CDATA[http://zgzzxb.ijournals.cn/zzxben/ch/reader/view_abstract.aspx?file_no=202303008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Recently， living cells have been widely used in tissue engineering， cell therapy and other fields. To ensure the activity and functional integrity of living cells during the application， a protective shell， was constructed on the cell surface， named cell encapsulation. Cell encapsulation avoids direct contact with immune cells， antibodies， enzymes and other substances， and ensures free exchange of small materials such as oxygen， nutrients and metabolites. Hydrogels have received much attention because of their similarity to the cell matrix and their ability to form 3D structures that mimic the cellular micro-environment. Herein， cell encapsulation is briefly introduced at first， and then the applications of lignocellulose-based hydrogels in cell encapsulation are emphatically introduced in the multi cells encapsulation； In single cell encapsulated， using layer-by-layer self-assembly， Grafting to and Grafting from methods to expound the effects of hydrogel shell on cell activity and function. Finally， the future development directions and prospects of hydrogel-encapsulated cells are discussed， hoping to provide reference values for the applications of living cells in medicine and food fields.]]></description>
<pubDate>2023/9/20 0:00:00</pubDate>
<category><![CDATA[木质纤维基凝胶材料在生物医用领域的应用]]></category>
<author><![CDATA[HE Bin,CHENG Lin,FANG Yifan,WANG Keyao,ZHENG Xulei,ZHU Xing]]></author>
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<atom:name>HE Bin,CHENG Lin,FANG Yifan,WANG Keyao,ZHENG Xulei,ZHU Xing</atom:name>
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