• 文献标题:   Graphene paper supported MoS2 nanocrystals monolayer with Cu submicron-buds: High-performance flexible platform for sensing in sweat
  • 文献类型:   Article
  • 作  者:   WANG ZY, DONG S, GUI MX, ASIF M, WANG W, WANG F, LIU HF
  • 作者关键词:   flexible sensing platform, mos2 nanocrystals monolayer, cu submicronbud, biofunction, human perspiration
  • 出版物名称:   ANALYTICAL BIOCHEMISTRY
  • ISSN:   0003-2697 EI 1096-0309
  • 通讯作者地址:   Huazhong Univ Sci Technol
  • 被引频次:   11
  • DOI:   10.1016/j.ab.2017.12.010
  • 出版年:   2018

▎ 摘  要

Flexible sweat biosensors are of considerable current interest for the development of wearable smart miniature devices. In this work, we report a novel type of flexible and electrochemical sweat platform fabricated by depositing Cu submicron buds on freestanding graphene paper (GP) carrying MoS2 nanocrystals monolayer for bio-functional detection of glucose and lactate. Quantitative analysis of glucose and lactate was carried out by using amperometric i-t method. Linear ranges were obtained between 5 and 1775 mu M for glucose and 0.01-18.4 mM for lactate, and their corresponding limits of detection were 500 nM and 0.1 mu M, respectively. The platform demonstrates fast response, good selectivity, superb reproducibility and outstanding flexibility, which enable its use for monitoring glucose and lactate in human perspiration. The strategy of structurally integrating 3D transition metal, OD transition metal sulfide and 2D graphene will provide new insight into the design of flexible electrodes for sweat glucose and lactate monitoring and a wider range of applications in biosensing, bioelectronics, and lab-on-a-chip devices.