Recyclable Semiconductor Aerogel Electrochemical Transistors for Ultrasensitive Biosensors.

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-10-01 DOI:10.1021/acs.nanolett.5c03551

Zhiying Deng,Xu Liu,Liqiong Zhang,Zejun Sun,Linlin Lu,Zhenyu Hu,Puzhong Gu,Xiao Yang,Guoqing Zu,Jia Huang

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引用次数: 0

Abstract

Recyclable organic electronics such as organic electrochemical transistors (OECTs) show great potential for sustainable bioelectronics and sensors. However, it is challenging to achieve recyclability of the OECTs, and the reported active layers of the OECTs typically feature dense semiconductor films with limited ion permeation/transport. Here, recyclable and flexible OECTs based on nanoporous aramid nanofibers/semiconducting polymer aerogels are developed. The resulting OECTs exhibit significantly enhanced ion permeation and transport and record-high transconductance of 136.5 mS among the OECTs with similar channel sizes. The aerogel OECT-based microfluidic dual-channel biosensor shows record-low detection limits of 10 and 1 pM in response to lactate and lysozyme, respectively, making it capable of identifying trace amounts of biomarkers in real body fluids such as saliva and tear. In addition, the semiconducting aerogels are recyclable, offering the possibility of reuse of the transistors. This work presents a powerful approach to recyclable semiconductor aerogels and ultrasensitive OECT biosensors for wearable/sustainable applications.

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用于超灵敏生物传感器的可回收半导体气凝胶电化学晶体管。

可回收的有机电子器件，如有机电化学晶体管（OECTs）在可持续生物电子学和传感器方面显示出巨大的潜力。然而，实现OECTs的可回收性是具有挑战性的，并且报道的OECTs活性层通常具有致密的半导体膜，离子渗透/传输有限。在此基础上，开发了基于纳米多孔芳纶纳米纤维/半导体聚合物气凝胶的可回收柔性oect。所得到的OECTs具有显著增强的离子渗透和输运，并且在具有相似通道大小的OECTs中具有136.5 mS的创纪录跨导率。基于气凝胶oect的微流体双通道生物传感器对乳酸和溶菌酶的检测限分别为10 pM和1 pM，创下历史新低，使其能够识别唾液和泪液等真实体液中的痕量生物标志物。此外，半导体气凝胶是可回收的，为晶体管的再利用提供了可能。这项工作为可回收的半导体气凝胶和超灵敏的OECT生物传感器提供了一种强大的方法，可用于可穿戴/可持续应用。

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

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.