Determination of Hemoglobin-oxygen saturation in living tissue by Coherent Anti-Stokes Raman Spectroscopy (CARS) (CAT#: STEM-ST-0024-WXH)

Introduction

Oxygen saturation is a measure of how much hemoglobin is currently bound to oxygen compared to how much hemoglobin remains unbound. At the molecular level, hemoglobin consists of four globular protein subunits. Each subunit is associated with a heme group.

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Principle Applications Procedure Materials Notes Related Products

Principle

Coherent Anti-Stokes Raman Spectroscopy (CARS) is a nonlinear Raman spectroscopy technique that uses two very strong collinear lasers to irradiate a sample. The frequency is usually kept constant, with the second laser tuned so that the frequency difference between the two lasers equals the frequency of a Raman-active mode of interest.

Applications

• Analysis of biocompatibility of a material.
• Analysis of nucleic acids.
• Study of interactions between drugs and cells.
• Photodynamic therapy (PDT).
• Analyzing metabolic accumulations of a substance or compounds.
• Diagnosis of disease.
• Analysis of individual cells.
• Cell sorting applications.
• Analyzing the features of biomolecules.
• Study of bone structure.

Procedure

1. Preparation of samples
2. Determine instrument parameters
3. Perform background scan
4. Test the sample
5. Data analysis

Materials

• Raman Spectrometer
• Raman Imaging Microscope

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