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Scientific Advances in Cancer Detection Using Raman Spectroscopy
Gourav Kumar Jain1, Rajni Verma1, Arun Chougule2
1Department of Radiological Physics, SMS Medical College & Hospital, Jaipur-302004, India.
Asian Pacific Journal of Cancer Prevention : APJCP
|November 29, 2024
Summary
Raman spectroscopy (RM) shows significant promise for cancer detection. This technique offers valuable insights for diagnosing various cancers, with potential for rapid clinical application.
Area of Science:
- Biomedical Optics
- Spectroscopy
- Cancer Diagnostics
Background:
- Cancer diagnosis remains a critical challenge in healthcare.
- Accurate and timely detection is crucial for effective treatment and patient outcomes.
- Novel diagnostic tools are continuously being explored to improve cancer detection rates.
Purpose of the Study:
- To investigate the role and potential of Raman spectroscopy (RM) in cancer detection.
- To review existing research on RM for diagnosing various types of cancer.
- To highlight the clinical applicability of RM in oncology.
Main Methods:
- A comprehensive literature review was conducted.
- Databases searched include PubMed, Web of Science, Embase, and Google Scholar.
- Key outcomes from studies on RM for cancer diagnosis were analyzed.
Main Results:
- Raman spectroscopy provides significant diagnostic information for cancer.
- Studies on cell cultures, animal models, and human tissues demonstrate RM's potential.
- In-vivo Raman probes show high sensitivity and specificity for detecting breast and brain tumors in real-time.
- Identifying specific Raman biomarkers for diverse cancers is an ongoing challenge.
Conclusions:
- Raman spectroscopy is an effective tool for cancer diagnostics.
- The technique holds significant promise for future clinical applications in rapid cancer diagnosis.
- Further research into Raman biomarkers will enhance its utility across different cancer types.
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The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
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01:26Raman Spectroscopy Instrumentation: Overview
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A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
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