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Preparation of conductive and transparent dipeptide hydrogels for wearable biosensor

Bio-Design and Manufacturing 2022年第1期5卷 153-162页

作者： Yafeng Jing Anhe Wang Jieling Li Qi Li Qingquan Han Xuefang Zheng Hongyu Cao Shuo Bai College of Life Science and Biotechnology DalianUniversityDalian 116622China State Key Laboratory of Biochemical Engineering Instituteof Process EngineeringChinese Academy of SciencesBeijing 100190China College of Environmental and Chemical Engineering DalianUniversityDalian 116622China

Conductive and transparent dipeptide hydrogels are desirable building blocks to prepare soft electronic devices and wearable biosensors due to their excellent biocompatibility,multi-functionality,and physiochemical properties similar to those of body ***,the preparation of such hydrogels featuring high conductivity and transparency is a huge challenge because of the hydrophobic feature of conductive additives making the doping process *** overcome this issue,hydrophilic conductive polydopamine(PDA)-doped polypyrrole(PPy)nanoparticles are introduced into the dipeptide hydrogel networks to form conductive nanofibrils in situ to achieve a good level of hydrophilic templating of the hydrogel *** tech-nique creates a complete conductive network and allows visible light to pass *** strategy proposed herein not only endows the dipeptide hydrogel with good conductivity and high transparency,but also provides a great potential application of conductive dipeptide hydrogels for body-adhered signal detection,as evidenced by the experimental data.

关键词： Conductivity Transparency Peptide hydrogel Polypyrrole-polydopamine nanoparticles wearable biosensor

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Electrochemical biosensors and power supplies for wearable health-managing textile systems

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Interdisciplinary Materials 2024年第2期3卷 270-296页

作者： Changxin Li Kangkang Jia Qimin Liang Yingchun Li Sisi He Shenzhen Key Laboratory of Flexible Printed Electronics Technology School of ScienceHarbin Institute of Technology(Shenzhen)University TownShenzhenGuangdongChina

In recent years,wearable electrochemical biosensors have received increasing attention,benefiting from the growing demand for continuous monitoring for personalized medicine and point-of-care medical *** electrochemical biosensing and corresponding power supply into everyday textiles could be a promising strategy for next-generation non-invasive and comfort interaction mode with *** review starts with the manufacturing and structural design of electrochemical biosensing textiles and discusses a series of wearable electrochemical biosensing textiles monitoring various biomarkers(e.g.,pH,electrolytes,metabolite,and cytokines)at the molecular *** fiber-shaped or textile-based solar cells and aqueous batteries as corresponding energy harvesting and storage devices are further introduced as a complete power supply for electrochemical biosensing ***,we discuss the challenges and prospects relating to sensing textile systems from wearability,durability,washability,sample collection and analysis,and clinical validation.

关键词： energy harvesting and storage fiber health monitoring smart textile wearable biosensor

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