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Blood typing using microstructured waveguide smart cuvette.

Anastasiya A Zanishevskaya¹, Andrey A Shuvalov², Yulia S Skibina¹

¹SPE Nanostructured Glass Technology, 101, 50 Let Oktyabrya Avenue, Saratov 410033, RussiabSaratov State University, Research-Educational Institute of Optics and Biophotonics, 83 Astrakhanskaya Street, Saratov 410012, Russia.

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|April 14, 2015

Summary

This study presents a novel photonic crystal waveguide method for precise blood typing and Rh factor determination. The technique accurately distinguishes positive and negative agglutination reactions, improving diagnostic sensitivity.

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Area of Science:

Biomedical Engineering
Clinical Diagnostics
Optoelectronics

Background:

Blood typing and Rh factor determination are crucial for safe transfusions.
Current agglutination assays can lack precision, especially with weak reactions.
Photonic crystal waveguides offer unique optical properties for sensing applications.

Purpose of the Study:

To develop a sensitive and precise method for distinguishing blood agglutination reactions.
To utilize microstructured waveguides (MSWs) for enhanced blood typing analysis.
To validate the method in a laboratory clinical setting.

Main Methods:

Employing microstructured waveguides (MSWs) as smart cuvettes for blood sample analysis.
Measuring the transmission spectrum of MSW cuvettes containing blood probes and agglutinating sera.
Analyzing spectral changes influenced by scattering, refractive, and absorptive properties of the blood probe.

Main Results:

The MSW method demonstrated high precision in differentiating positive and negative agglutination reactions.
A spectral-based discrimination parameter (I+/I-) of 16 was achieved for standard analysis.
A ratio of approximately 2 was observed for weak-activity sera, indicating sensitivity to subtle reactions.

Conclusions:

Photonic crystal waveguides provide a sensitive platform for precise blood agglutination analysis.
The developed MSW method enhances accuracy in blood typing and Rh affinity determination.
This technology holds potential for improved clinical diagnostics in transfusion medicine.