Analytical and Bioanalytical Chemistry

, Volume 407, Issue 27, pp 8265–8277

Label-free surface-enhanced Raman spectroscopy of biofluids: fundamental aspects and diagnostic applications

Review

DOI: 10.1007/s00216-015-8697-z

Cite this article as:
Bonifacio, A., Cervo, S. & Sergo, V. Anal Bioanal Chem (2015) 407: 8265. doi:10.1007/s00216-015-8697-z
Part of the following topical collections:
  1. Raman4Clinics

Abstract

In clinical practice, one objective is to obtain diagnostic information while minimizing the invasiveness of the tests and the pain for the patients. To this end, tests based on the interaction of light with readily available biofluids including blood, urine, or saliva are highly desirable. In this review we examine the state of the art regarding the use of surface-enhanced Raman spectroscopy (SERS) to investigate biofluids, focusing on diagnostic applications. First, a critical evaluation of the experimental aspects involved in the collection of SERS spectra is presented; different substrate types are introduced, with a clear distinction between colloidal and non-colloidal metal nanostructures. Then the effect of the excitation wavelength is discussed, along with anomalous bands and artifacts which might affect SERS spectra of biofluids. The central part of the review examines the literature available on the SERS spectra of blood, plasma, serum, urine, saliva, tears, and semen. Finally, diagnostic applications are critically discussed in the context of the published evidence; this section clearly reveals that SERS of biofluids is most promising as a rapid, cheap, and non-invasive tool for mass screening for cancer.

Keywords

SERS Raman Biofluids Diagnosis 

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Raman Spectroscopy Laboratory, Department of Engineering and ArchitectureUniversity of TriesteTriesteItaly
  2. 2.CRO-BiobankCRO Aviano, National Cancer InstituteAvianoItaly
  3. 3.Clinical Cancer PathologyCRO Aviano, National Cancer InstituteAvianoItaly

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