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Updated: Aug 23, 2025

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Label-Free Surface Enhanced Raman Spectroscopy for Cancer Detection.

Ertug Avci1, Hulya Yilmaz2, Nurettin Sahiner3,4

  • 1Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul 34755, Turkey.

Cancers
|October 27, 2022
PubMed
Summary

Surface-enhanced Raman spectroscopy (SERS) shows high accuracy in distinguishing cancer patient serum from healthy individuals. This blood test technique holds promise for early cancer detection and screening.

Keywords:
SERSbloodcancer detectionhuman serumplasmasilver nanoparticles

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Area of Science:

  • Biochemistry
  • Analytical Chemistry
  • Oncology

Background:

  • Blood contains metabolites and cellular components linked to diseases, making it valuable for cancer diagnosis.
  • Surface-enhanced Raman spectroscopy (SERS) offers high sensitivity and multiplexing for molecular detection, but its diagnostic potential requires further investigation.

Purpose of the Study:

  • To evaluate the potential of SERS for cancer diagnosis using blood serum.
  • To assess SERS's ability to discriminate between cancer patients, healthy individuals, and those with chronic diseases.

Main Methods:

  • Utilized silver nanoparticles (AgNPs) as substrates for SERS analysis of blood serum samples.
  • Tested various experimental parameters to optimize SERS performance for diagnostic applications.
  • Compared SERS spectral patterns of cancer patients' serum before and after tumor removal.

Main Results:

  • Achieved over 90% diagnostic accuracy in discriminating between serum samples from cancer patients, healthy individuals, and patients with chronic diseases.
  • Observed significant changes in SERS spectral patterns of cancer patients' serum post-tumor removal, aligning with patterns from healthy individuals.

Conclusions:

  • SERS demonstrates significant potential as a sensitive and accurate tool for cancer detection and screening.
  • The technique's ability to reflect changes post-treatment suggests its utility in monitoring disease status.