摘要
刺激响应型纤维素水凝胶是一种具有大量亲水性结构、交联形成的三维网络结构材料,除了具有良好的生物相容性和柔韧性外,在一定条件下能对包括温度、pH、湿度、压力、光、电场、磁场、化学物质等外界刺激因素进行响应,自身性质如相态、体积、形状、分子极性、反应速率或识别性能等随之发生变化。这使其在化学传感器、转换器、记忆元件开关、人造肌肉、药物控释、固定化酶、组织工程等领域具有良好的应用前景。着重阐述了温度响应型、pH响应型、湿度响应型、压力响应型、电响应型、光响应型、磁响应型、双重或多重响应型纤维素水凝胶构建机理,并对其在药物输送与释放、柔性超级电容器、柔性传感器等高技术领域的应用进行了阐述,总结了响应型纤维素水凝胶所面临的挑战和未来的研究趋势。
Stimulus responsive cellulose hydrogel is a three-dimensional network structure material with a large number of hydrophilic structures and cross-linking.In addition to good biocompatibility and flexibility,it can respond to external stimuli including temperature,pH,humidity,pressure,light,electric field,magnetic field,chemical substances and other external stimuli under certain conditions,and its own properties such as phase,volume,shape,molecular polari-ty,reaction rate or recognition performance will change accordingly.This makes it have good application prospects in fields such as chemical sensors,converters,memory element switches,artificial muscles,drug controlled release,im-mobilized enzymes,and tissue engineering.The construction mechanisms of temperature responsive,pH-responsive,hu-midity responsive,pressure responsive,electrical responsive,photoresponsive,magnetic responsive,double or multiple responsive cellulose hydrogels were emphatically described,and their applications in high-tech fields such as drug deliv-ery and release,flexible supercapacitors,and flexible sensors were described.The challenges and future research trends of responsive cellulose hydrogels were summarized.
作者
王军雯
沈豪
张诗禹
张亮
张英强
李诗凝
吴玲
徐敬姣
王苗
李凯
徐微
WANG Junwen;SHEN Hao;ZHANG Shiyu;ZHANG Liang;ZHANG Yingqiang;LI Shining;WU Ling;XU Jingjao;WANG Miao;LI Kai;XU Wei(School of Materials Science and Engineering,Shanghai Institute of Technology,Shanghai 201418,China;Institute of International Engineering,Shenyang Ligong University,Shenyang 110159,China;Shanghai Institute of Quality Inspection and Technical Research,Shanghai 201114,China)
出处
《上海塑料》
CAS
2023年第6期1-13,共13页
Shanghai Plastics
关键词
纤维素
水凝胶
刺激响应
cellulose
hydrogel
stimulus responsive