Stamping SERS for creatinine sensing

Ming Li, Yong Du, Fusheng Zhao, Jianbo Zeng, Greggy M. Santos, Chandra Mohan, Wei Chuan Shih

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Urine can be obtained easily, readily and non-invasively. The analysis of urine can provide metabolic information of the body and the condition of renal function. Creatinine is one of the major components of human urine associated with muscle metabolism. Since the content of creatinine excreted into urine is relatively constant, it is used as an internal standard to normalize water variations. Moreover, the detection of creatinine concentration in urine is important for the renal clearance test, which can monitor the filtration function of kidney and health status. In more details, kidney failure can be imminent when the creatinine concentration in urine is high. A simple device and protocol for creatinine sensing in urine samples can be valuable for point-of-care applications. We reported quantitative analysis of creatinine in urine samples by using stamping surface enhanced Raman scattering (S-SERS) technique with nanoporous gold disk (NPGD) based SERS substrate. S-SERS technique enables label-free and multiplexed molecular sensing under dry condition, while NPGD provides a robust, controllable, and high-sensitivity SERS substrate. The performance of S-SERS with NGPDs is evaluated by the detection and quantification of pure creatinine and creatinine in artificial urine within physiologically relevant concentration ranges.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
PublisherSPIE
Volume9340
ISBN (Print)9781628414301
DOIs
StatePublished - 2015
EventPlasmonics in Biology and Medicine XII - San Francisco, United States
Duration: Feb 7 2015Feb 8 2015

Other

OtherPlasmonics in Biology and Medicine XII
CountryUnited States
CitySan Francisco
Period2/7/152/8/15

Keywords

  • Creatinine
  • Nanoporous gold
  • SERS

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

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