Dresden 2026 – scientific programme

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BP: Fachverband Biologische Physik

BP 14: Poster Session II

BP 14.36: Poster

Tuesday, March 10, 2026, 18:00–21:00, P2

Diffusion and deoxygenation/oxygenation of hemoglobin solutions in microfluidics — •Agatha Belén Pinto-Pino, Sarah Tabea Hermes, Thomas John, and Christian Wagner — Experimental Physics, Saarland University

The observation of red blood cells (RBCs) under bright field microscopy allows the study of how absorption and refraction combine to form image contrast. In this work, we use the absorption of light to investigate the diffusion of hemoglobin in water in microfluidic channels. By analyzing how intensity profiles evolve over time, we characterize the diffusion behavior of hemoglobin in water. The setup will also be used to study the transition from deoxygenated to oxygenated hemoglobin, because the absorptions differ strongly for those states, in particular for different wave length of the light. This study helps for a better understanding of the mechanisms that govern oxygen transport in blood.

Keywords: hemoglobin; oxygen; red blood cells; diffusion