• 文献标题:   Graphene Chemeo-Phononics for Biosensor Applications: An Interfacial Raman Transducer
  • 文献类型:   Review
  • 作  者:   KEISHAM B, KIM S, COTTS S, BERRY V
  • 作者关键词:   biosensor, graphene, interface engineering, phononic detection, raman spectroscopy
  • 出版物名称:   ADVANCED MATERIALS INTERFACES
  • ISSN:   2196-7350
  • 通讯作者地址:  
  • 被引频次:   1
  • DOI:   10.1002/admi.202200773 EA SEP 2022
  • 出版年:   2022

▎ 摘  要

Leveraging the phononic sensitivity and scalability of nano-biointerfaces has accelerated the growth of unique and versatile biosensors. Graphene has the properties of a near-ideal signal transducer, due to the strong coupling between its interfacial and phononic properties. This enables sensitive yet quick detection of surface interactions on graphene via Raman spectral analysis. The Raman-active vibrational bands of graphene are demonstrated to be sensitive to structural, electrical, and interfacial modifications. This sensitivity is attributed to graphene's electron-phonon coupling and high quantum capacitance. The fundamental understanding of graphene phonons is crucial for developing reliable platforms for disease and infectious agent detection. This review provides a mechanistic explanation of these phenomena at the interface between graphene and various biosystems (including cancerous, bacterial, viral, and biophysical specimens) to set the foundation for next-generation chemeo-phononic medical devices.