Related Experiment Video
Updated: Jun 5, 2025

15:04
Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy
Published on: May 18, 2011
13.1K
Advancing Transfusion Medicine through Raman Tweezers Spectroscopy: A Review of Recent Progress and Future
Mithun Nelliat1, Ganesh Mohan2, Jijo Lukose1
1Centre of Excellence for Biophotonics, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, India.
Summary
Raman tweezers spectroscopy (RTS) offers a powerful method to analyze blood cell quality in transfusion medicine. This technique monitors cellular changes, providing insights into storage lesions and the effects of various treatments on blood products.
Area of Science:
- Biomedical Engineering
- Analytical Chemistry
- Hematology
Background:
- Raman tweezers spectroscopy (RTS) integrates optical tweezers and Raman spectroscopy for single living cell analysis.
- Its high molecular specificity and sensitivity are valuable in biomedical and clinical research.
- RTS applications include studying cell viability, deformation, and interactions.
Purpose of the Study:
- To review the principles and clinical applications of Raman tweezers spectroscopy (RTS) in transfusion medicine.
- To highlight RTS's utility in assessing blood product quality and storage effects.
Main Methods:
- Raman tweezers spectroscopy (RTS) combines optical tweezers with Raman spectroscopy.
- Analysis of Raman spectra from individual blood cells.
- In-situ study of live single cells in physiological environments.
Main Results:
- RTS detects changes in cellular blood components by analyzing Raman spectra.
- These spectral changes can monitor blood product quality during storage and transfusion.
- RTS provides insights into storage lesions and the impact of preservatives and fluids on blood cells.
Conclusions:
- RTS is a versatile tool for biomedical research, particularly in transfusion medicine.
- It enables the exploration of live single cell dynamics.
- RTS facilitates the monitoring of blood product integrity and safety.
Related Concept Videos
Raman Spectroscopy Instrumentation: Overview
296
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...
296
Raman Spectroscopy: Overview
307
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...
307

