轻松形成用于传感应用的多功能仿生水凝胶纤维

IF 5 3区 化学 Q1 POLYMER SCIENCE
Gels Pub Date : 2024-09-13 DOI:10.3390/gels10090590
Mengwei Jia, Mingle Guan, Ryan Yao, Yuan Qing, Xiaoya Hou, Jie Zhang
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引用次数: 0

摘要

面对制备具有复杂结构和功能的水凝胶纤维所面临的挑战,本研究利用微流体同轴共挤技术,通过快速离子交联成功制备出功能性水凝胶纤维。通过调整内外相的组成,生成了具有复杂结构的功能性水凝胶纤维,包括线性纤维、核壳结构纤维、嵌入式螺旋通道、空心管和项链。水凝胶纤维的特征参数(内外直径、螺旋生成位置、螺距等)可通过调节内外相的流速来实现。作为生物兼容材料,水凝胶纤维具有导电性、温度敏感性、机械增强性和抗冻性,可用作人体呼吸监测和其他仿生应用开发的温度传感器。水凝胶纤维的电导率高达 22.71 S/m,呼吸响应时间为 37 ms,恢复时间为 1.956 s,并能提高呼吸强度;断裂拉伸强度高达 8.081 MPa,断裂伸长率高达 159%,抗温度系数(TCR)高达 -13.080% ℃-1,均优于现有的相关研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Facile Formation of Multifunctional Biomimetic Hydrogel Fibers for Sensing Applications.

To face the challenges in preparing hydrogel fibers with complex structures and functions, this study utilized a microfluidic coaxial co-extrusion technique to successfully form functional hydrogel fibers through rapid ionic crosslinking. Functional hydrogel fibers with complex structures, including linear fibers, core-shell structure fibers, embedded helical channels, hollow tubes, and necklaces, were generated by adjusting the composition of internal and external phases. The characteristic parameters of the hydrogel fibers (inner and outer diameter, helix generation position, pitch, etc.) were achieved by adjusting the flow rate of the internal and external phases. As biocompatible materials, hydrogel fibers were endowed with electrical conductivity, temperature sensitivity, mechanical enhancement, and freeze resistance, allowing for their use as temperature sensors for human respiratory monitoring and other biomimetic application developments. The hydrogel fibers had a conductivity of up to 22.71 S/m, a response time to respiration of 37 ms, a recovery time of 1.956 s, and could improve the strength of respiration; the tensile strength at break up to 8.081 MPa, elongation at break up to 159%, and temperature coefficient of resistance (TCR) up to -13.080% °C-1 were better than the existing related research.

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来源期刊
Gels
Gels POLYMER SCIENCE-
CiteScore
4.70
自引率
19.60%
发文量
707
审稿时长
11 weeks
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