Flexible Hydrogel Sensors for Real-Time and Synchronized Monitoring of Underwater Multiple Parameters Based on Piezoelectric Elastomer/Sodium Alginate/Carbon Quantum Dots Composites

IF 5.5 2区化学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY

Biomacromolecules Pub Date : 2025-07-14 DOI:10.1021/acs.biomac.5c00241

Bingqing Lin , Pengfei Yang , Wei Liu , Zhiqiang Li , Zhao Wang , Yong Xiang , Qian Zhang , Xiaoran Hu

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Abstract

Water quality monitoring refers to multiple parameters, including flow rate, pH, and temperature. However, current individual underwater sensors have certain limitations in multiparameter measurements, and integrated sensors face dilemmas, such as large size and high power consumption. In the present work, a hydrogel sensor was prepared for water quality monitoring (HSWQM) based on a piezoelectric elastomer (PE). The PE is synthesized with a long flexible backbone and cross-linking sites, providing it with a low elastic modulus and high piezoelectricity to realize stress monitoring. PE was blended with sodium alginate (SA) to make a flexible piezoelectric hydrogel (FPH), and its high swelling capacity was utilized to absorb carbon quantum dots (CQDs), thus responding to changes in pH. Further integration with a thermally sensitive alloy membrane and a Near Field Communication (NFC) module enabled real-time and synchronous monitoring of flow rate, temperature, and pH.

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查看原文本刊更多论文

基于压电弹性体/海藻酸钠/碳量子点复合材料的水下多参数实时同步监测柔性水凝胶传感器。

水质监测包括流量、pH、温度等多个参数。然而，目前单个水下传感器在多参数测量方面存在一定的局限性，集成传感器面临着体积大、功耗高等难题。本文研制了一种基于压电弹性体（PE）的水凝胶水质监测传感器。聚乙烯采用长柔性骨架和交联位点合成，具有低弹性模量和高压电性，可实现应力监测。将PE与海藻酸钠（SA）混合制成柔性压电水凝胶（FPH），利用其高膨胀能力吸收碳量子点（CQDs），从而响应pH值的变化。进一步与热敏合金膜和近场通信（NFC）模块集成，可以实时同步监测流速、温度和pH值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Biomacromolecules 化学-高分子科学

CiteScore

10.60

自引率

4.80%

发文量

417

审稿时长

1.6 months

期刊介绍： Biomacromolecules is a leading forum for the dissemination of cutting-edge research at the interface of polymer science and biology. Submissions to Biomacromolecules should contain strong elements of innovation in terms of macromolecular design, synthesis and characterization, or in the application of polymer materials to biology and medicine. Topics covered by Biomacromolecules include, but are not exclusively limited to: sustainable polymers, polymers based on natural and renewable resources, degradable polymers, polymer conjugates, polymeric drugs, polymers in biocatalysis, biomacromolecular assembly, biomimetic polymers, polymer-biomineral hybrids, biomimetic-polymer processing, polymer recycling, bioactive polymer surfaces, original polymer design for biomedical applications such as immunotherapy, drug delivery, gene delivery, antimicrobial applications, diagnostic imaging and biosensing, polymers in tissue engineering and regenerative medicine, polymeric scaffolds and hydrogels for cell culture and delivery.