Utilization of Inexpensive Carbon-Based Substrates as Platforms for Sensing

Sensors

Alison Whale¹  Minh Tran²  Ahmad Fallatah²  Sonal Padalkar² 

[1] Department of Materials Science and Engineering, Iowa State University, Ames, IA 50011, USA;Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA;

关键词: gold;    electrodeposition;    SERS;    nanostructures;   

DOI  :  10.3390/s18082444

来源: DOAJ

【 摘 要 】

Gold (Au) has been widely used as a material for Surface Enhanced Raman Spectroscopy (SERS) due to its plasmonic properties, stability and biocompatibility. Conventionally for SERS application, Au is deposited on a rigid substrate such as glass or silicon. The rigid substrates severely limit analyte collection efficiency as well as portability. Here, flexible substrates like carbon cloth and carbon paper were investigated as potential substrate candidates for SERS application. The flexible substrates were coated with Au nanostructures by electrodeposition. Model analyte, Rhodamine 6G was utilized to demonstrate the capabilities of the flexible SERS substrates. Additionally, the pesticide paraoxon was also detected on the flexible SERS substrates as well as on a real sample like the apple fruit.

【 授权许可】

Unknown