...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Spray-Layer-by-Layer Carbon Nanotube/Electrospun Fiber Electrodes for Flexible Chemiresistive Sensor Applications
【24h】

Spray-Layer-by-Layer Carbon Nanotube/Electrospun Fiber Electrodes for Flexible Chemiresistive Sensor Applications

机译：柔性化学电阻传感器应用的逐层碳纳米管/电纺纤维电极

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Development of a versatile method for incorporating conductive materials into textiles could enable advances in wearable electronics and smart textiles. One area of critical importance is the detection of chemicals in the environment for security and industrial process monitoring. Here, the fabrication of a flexible, sensor material based on functionalized multi-walled carbon nano-tube (MWNT) films on a porous electrospun fiber mat for real-time detection of a nerve agent simulant is reported. The material is constructed by layer-by-layer (LbL) assembly of MWNTs with opposite charges, creating multilayer films of MWNTs without binder. The vacuum-assisted spray-LbL process enables conformal coatings of nanostructured MWNT films on individual electrospun fibers throughout the bulk of the mat with controlled loading and electrical conductivity. A thiourea-based receptor is covalently attached to the primary amine groups on the MWNT films to enhance the sensing response to dimethyl methylphosphonate (DMMP), a simulant for sarin nerve agent. Chemiresistive sensors based on the engineered textiles display reversible responses and detection limits for DMMP as low as 10 ppb in the aqueous phase and 5 ppm in the vapor phase. This fabrication technique provides a versatile and easily scalable strategy for incorporating conformal MWNT films into three-dimensional substrates for numerous applications.
机译：将导电材料结合到纺织品中的通用方法的开发可以使可穿戴电子产品和智能纺织品取得进步。至关重要的领域之一是为安全和工业过程监控而检测环境中的化学物质。在此，报道了一种基于功能化多壁碳纳米管（MWNT）膜的柔性传感器材料的制造，该膜位于多孔电纺纤维毡上，用于实时检测神经毒剂模拟物。该材料是通过具有相反电荷的MWNT的逐层（LbL）组装构造而成的，从而形成了没有粘合剂的MWNT多层膜。真空辅助喷雾LbL工艺可在整个垫子的整个单块电纺纤维上保形涂覆纳米结构的MWNT薄膜，并控制负载和电导率。基于硫脲的受体共价连接到MWNT薄膜上的伯胺基团上，以增强对沙林神经毒剂模拟物甲基膦酸二甲酯（DMMP）的感应响应。基于工程纺织品的化学电阻式传感器对DMMP的可逆响应和检测极限在水相中低至10 ppb，在气相中低至5 ppm。这种制造技术提供了一种通用且易于扩展的策略，可将保形的MWNT膜结合到三维基板中，从而实现多种应用。

著录项

  • 来源
    《Advanced Functional Materials》 |2014年第4期|492-502|共11页
  • 作者

    Kittipong Saetia; Jan M. Schnorr; Matthew M. Mannarino; Sung Yeol Kim; Gregory C. Rutledge; Timothy M. Swager; Paula T. Hammond;

  • 作者单位

    Department of Chemical Engineering and Institute for Soldier Nanotechnologies Massachusetts Institute of Technology Room 76-553, 77 Massachusetts Ave Cambridge, MA 02139, USA;

    Department of Chemistry and Institute for Soldier Nanotechnologies Massachusetts Institute of Technology Cambridge, MA 02139, USA;

    Department of Chemical Engineering and Institute for Soldier Nanotechnologies Massachusetts Institute of Technology Room 76-553, 77 Massachusetts Ave Cambridge, MA 02139, USA;

    Department of Chemical Engineering and Institute for Soldier Nanotechnologies Massachusetts Institute of Technology Room 76-553, 77 Massachusetts Ave Cambridge, MA 02139, USA;

    Department of Chemical Engineering and Institute for Soldier Nanotechnologies Massachusetts Institute of Technology Room 76-553, 77 Massachusetts Ave Cambridge, MA 02139, USA;

    Department of Chemistry and Institute for Soldier Nanotechnologies Massachusetts Institute of Technology Cambridge, MA 02139, USA;

    Department of Chemical Engineering and Institute for Soldier Nanotechnologies Massachusetts Institute of Technology Room 76-553, 77 Massachusetts Ave Cambridge, MA 02139, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号