Diffusion Wave Spectroscopy Microrheological Characterization of Gelling Agarose Solutions.

Polymers (Basel)

Departamento de Física Fundamental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Paso Senda del Rey 9, 28040 Madrid, Spain.

Published: September 2024

This work investigated the gelation kinetics and mechanical properties of agarose hydrogels studied at different concentrations (in the range 1-5 g/L) and temperatures. Rheological measurements were performed by diffusing wave spectroscopy (DWS) using polystyrene and titanium dioxide particles as probes. The study emphasized the influence of gelation kinetics on the mechanical behavior of the hydrogels. The results showed that the gel properties were closely related to the thermal history and aging time of the samples. The insights gained from this study are critical for optimizing the performance of agarose hydrogels in specific applications and highlight the importance of controlling the concentration and thermal conditions during hydrogel preparation.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11435981PMC
http://dx.doi.org/10.3390/polym16182618DOI Listing

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