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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
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.
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.
