Self-Healing E‑tongue

被引：0
作者：
de Barros A. [1 ,2 ]
Gaál G. [3 ]
Braunger M.L. [3 ]
Martinez Jimenez M.J. [3 ]
Avila-Avendano C. [2 ]
Rodrigues V. [3 ]
Andrade M.J.D. [4 ]
Quevedo-Lopez M. [2 ]
Alvarez F. [3 ]
Baughman R.H. [4 ]
Riul A. [3 ,4 ]
机构：
[1] Universidade Estadual de Campinas, Instituto de Química, SP, Campinas
[2] Materials Science and Engineering Department, University of Texas at Dallas, Richardson, 75080, TX
[3] Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin, SP, Campinas
[4] Alan MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, 75080, TX
来源：
ACS Applied Materials and Interfaces | 2023年 / 15卷 / 47期
基金：
巴西圣保罗研究基金会;
关键词：
Electronic tongue; impedimetric; self-healing; sweat; tastants;
D O I：
10.1021/ACSAMI.3C11590
中图分类号：
学科分类号：
摘要：
Self-healing materials inspire the next generation of multifunctional wearables and Internet of Things appliances. They expand the realm of thin film fabrication, enabling seamless conformational coverage irrespective of the shape complexity and surface geometry for electronic skins, smart textiles, soft robotics, and energy storage devices. Within this context, the layer-by-layer (LbL) technique is versatile for homogeneously dispersing materials onto various matrices. Moreover, it provides molecular level thickness control and coverage on practically any surface, with poly(ethylenimine) (PEI) and poly(acrylic acid) (PAA) being the most used materials primarily employed in self-healing LbL structures operating at room temperature. However, achieving thin film composites displaying controlled conductivity and healing ability is still challenging under ambient conditions. Here, PEI and PAA are mixed with conductive fillers (gold nanorods, poly(3,4-ethylene dioxythiophene): polystyrenesulfonate (PEDOT:PSS), reduced graphene oxides, and multiwalled carbon nanotubes) in distinct LbL film architectures. Electrical (AC and DC), optical (Raman spectroscopy), and mechanical (nanoindentation) measurements are used for characterizing composite structures and properties. A delicate balance among electrical, mechanical, and structural characteristics must be accomplished for a controlled design of conductive self-healing composites. As a proof-of-concept, four LbL composites were chosen as sensing units in the first reported self-healing e-tongue. The sensor can easily distinguish basic tastes at low molar concentrations and differentiate trace levels of glucose in artificial sweat. The formed nanostructures enable smart coverages that have unique features for solving current technological challenges. © 2023 American Chemical Society.
引用
收藏
页码：55073 / 55081
页数：8
相关论文
共 59 条
  • [1] Li J., Xin M., Ma Z., Shi Y., Pan L., Nanomaterials and Their Applications on Bio-Inspired Wearable Electronics, Nanotechnology, 32, (2021)
  • [2] Someya T., Bao Z., Malliaras G.G., The Rise of Plastic Bioelectronics, Nature, 540, pp. 379-385, (2016)
  • [3] Lipomi D.J., Bao Z., Stretchable and Ultraflexible Organic Electronics, MRS Bull, 42, pp. 93-97, (2017)
  • [4] Wang S., Oh J.Y., Xu J., Tran H., Bao Z., Skin-Inspired Electronics: An Emerging Paradigm, Acc. Chem. Res., 51, pp. 1033-1045, (2018)
  • [5] Liu Y., Pharr M., Salvatore G.A., Lab-on-Skin: A Review of Flexible and Stretchable Electronics for Wearable Health Monitoring, ACS Nano, 11, pp. 9614-9635, (2017)
  • [6] Torres Alonso E., Et al., Graphene Electronic Fibres with Touch-Sensing and Light-Emitting Functionalities for Smart Textiles, NPJ Flexible Electron, 2, (2018)
  • [7] Munaoka T., Et al., Ionically Conductive Self-Healing Binder for Low Cost Si Microparticles Anodes in Li-Ion Batteries, Adv. Energy Mater., 8, (2018)
  • [8] Peng H., Et al., Physically Cross-Linked Dual-Network Hydrogel Electrolyte with High Self-Healing Behavior and Mechanical Strength for a Wide-Temperature Tolerant Flexible Supercapacitor, Chem. Eng. J., 422, pp. 130353-135361, (2021)
  • [9] Ma H., Et al., Self-Healing All-in-One Energy Storage for Flexible Self-Powering Ammonia Smartsensors, Energy Environ. Mater., 5, pp. 986-995, (2022)
  • [10] Chen D., Et al., Self-healing Materials for Next-Generation Energy Harvesting and Storage Devices, Adv. Energy Mater., 7, (2017)
123456