用于体内植物监测的可自愈拉伸印刷电子冷冻凝胶

IF 12.3 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC npj Flexible Electronics Pub Date : 2023-10-23 DOI:10.1038/s41528-023-00280-1
Eloïse Bihar, Elliot J. Strand, Catherine A. Crichton, Megan N. Renny, Ignacy Bonter, Tai Tran, Madhur Atreya, Adrian Gestos, Jim Haseloff, Robert R. McLeod, Gregory L. Whiting
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摘要

生物电子学的一个关键挑战是建立和改进电子设备与活体组织之间的接口,从而能够直接评估生物系统。与植物组织集成的传感器可以提供有关植物本身以及周围环境的宝贵信息,包括空气和土壤质量。开发与植物组织的界面的一个障碍是减缓纤维化组织的形成,这可能会阻碍传感器在较长时间内连续准确地工作。利用适当的生物相容性材料和适当的制造技术来建立植物电子接口的电子系统可以提供增强的环境理解和生态系统管理能力。为了满足这些需求,本研究介绍了一种将印刷电子材料与生物相容性冷冻凝胶集成的方法,从而产生能够在植物组织内长期运行的稳定的基于水凝胶的生物电子设备。这些喷墨打印的冷冻凝胶可以定制,以提供各种电子功能,包括电极和有机电化学晶体管(OECT),它们对嵌入的导电聚合物迹线表现出高电导率(高达350 S/cm),OECT的跨导在mS范围内,电容高达4.2 mF g−1,具有合适的结构、高拉伸性(高达330%应变)和自修复性能。基于生物相容性功能化冷冻凝胶的电极和晶体管被成功植入植物组织,番茄茎中的离子活性被收集了两个多月,疤痕组织形成最小,这使得这些基于冷冻凝胶的印刷电子设备成为连续、原位监测植物和环境状况及健康的绝佳候选者。
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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Self-healable stretchable printed electronic cryogels for in-vivo plant monitoring
A key challenge in bioelectronics is to establish and improve the interface between electronic devices and living tissues, enabling a direct assessment of biological systems. Sensors integrated with plant tissue can provide valuable information about the plant itself as well as the surrounding environment, including air and soil quality. An obstacle in developing interfaces to plant tissue is mitigating the formation of fibrotic tissues, which can hinder continuous and accurate sensor operation over extended timeframes. Electronic systems that utilize suitable biocompatible materials alongside appropriate fabrication techniques to establish plant-electronic interfaces could provide for enhanced environmental understanding and ecosystem management capabilities. To meet these demands, this study introduces an approach for integrating printed electronic materials with biocompatible cryogels, resulting in stable implantable hydrogel-based bioelectronic devices capable of long-term operation within plant tissue. These inkjet-printed cryogels can be customized to provide various electronic functionalities, including electrodes and organic electrochemical transistors (OECTs), that exhibit high electrical conductivity for embedded conducting polymer traces (up to 350 S/cm), transconductance for OECTs in the mS range, a capacitance of up to 4.2 mF g−1 in suitable structures, high stretchability (up to 330% strain), and self-healing properties. The biocompatible functionalized cryogel-based electrodes and transistors were successfully implanted in plant tissue, and ionic activity in tomato plant stems was collected for over two months with minimal scar tissue formation, making these cryogel-based printed electronic devices excellent candidates for continuous, in-situ monitoring of plant and environmental status and health.
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来源期刊
CiteScore
17.10
自引率
4.80%
发文量
91
审稿时长
6 weeks
期刊介绍: npj Flexible Electronics is an online-only and open access journal, which publishes high-quality papers related to flexible electronic systems, including plastic electronics and emerging materials, new device design and fabrication technologies, and applications.
期刊最新文献
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