Cellulose-Based Conductive Hydrogels for Emerging Intelligent Sensors

IF 17.2 1区 工程技术 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Xue Yao, Sufeng Zhang, Ning Wei, Liwei Qian, Sergiu Coseri
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引用次数: 0

Abstract

Flexible intelligent sensing is a burgeoning field of study that covers various disciplines, including but not restricted to chemistry, physics, electronics and biology. However, the widespread use of flexible sensors remains challenging because of certain constraints, such as limited stretchability, poor biocompatibility, low responsivity, and the complexity of multifunctional integration. Conductive hydrogels with remarkable material properties are presently in the spotlight of flexible sensing. In the pursuit of high-performance and “green” conductive hydrogel-based sensors, cellulose is a promising candidate owing to its renewability, low cost, appealing mechanical properties, easy modification and other functional characteristics. Herein, cutting-edge progress in the fabrication of conductive cellulose hydrogels (CCHs) using cellulose and cellulose derivatives in terms of structural features, preparation approaches, functional properties, applications, and prospects for sensors is comprehensively summarized. The correlation between CCHs performances, reinforcement strategies and sensor properties is highlighted to gain insight into the process of developing smart sensors by utilizing CCHs. Besides, the state-of-the-art advances of CCHs toward emerging wearable sensors, including strain/pressure sensors, temperature sensors, humidity sensors, and biosensors, are systematically discussed. Finally, potential challenges and future outlooks of such attractive CCH-based flexible sensors are presented, providing valuable information for the development of next-generation cellulose-based electronic devices.

Abstract Image

用于新兴智能传感器的纤维素导电水凝胶
柔性智能传感是一个新兴的研究领域,涉及多个学科,包括但不限于化学、物理学、电子学和生物学。然而,由于某些限制因素,如有限的可拉伸性、较差的生物相容性、较低的响应速度以及多功能集成的复杂性,柔性传感器的广泛应用仍具有挑战性。目前,具有显著材料特性的导电水凝胶成为柔性传感的焦点。在追求高性能和 "绿色 "导电水凝胶传感器的过程中,纤维素因其可再生性、低成本、诱人的机械性能、易改性和其他功能特性而成为一个很有前途的候选材料。本文从结构特征、制备方法、功能特性、应用及传感器前景等方面,全面总结了利用纤维素及纤维素衍生物制备导电纤维素水凝胶(CCHs)的前沿进展。重点介绍了 CCHs 性能、增强策略和传感器特性之间的相关性,以便深入了解利用 CCHs 开发智能传感器的过程。此外,还系统讨论了 CCHs 在新兴可穿戴传感器方面的最新进展,包括应变/压力传感器、温度传感器、湿度传感器和生物传感器。最后,介绍了这些基于 CCH 的柔性传感器所面临的潜在挑战和未来展望,为开发下一代基于纤维素的电子设备提供了宝贵信息。
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来源期刊
CiteScore
18.70
自引率
11.20%
发文量
109
期刊介绍: Advanced Fiber Materials is a hybrid, peer-reviewed, international and interdisciplinary research journal which aims to publish the most important papers in fibers and fiber-related devices as well as their applications.Indexed by SCIE, EI, Scopus et al. Publishing on fiber or fiber-related materials, technology, engineering and application.
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