Tsakiri, Maria ORCID: https://orcid.org/0000-0002-9837-7070, Ghanizadeh Tabriz, Atabak, Naziris, Nikolaos, Rahali, Kanza, Douroumis, Dennis ORCID: https://orcid.org/0000-0002-3782-0091 and Demetzos, Costas (2024) Exosome-like genistein-loaded nanoparticles developed by thin-film hydration and 3D-printed Tesla microfluidic chip: a comparative study. International Journal of Pharmaceutics, 651:123788. ISSN 0378-5173 (Print), 1873-3476 (Online) (doi:10.1016/j.ijpharm.2024.123788)

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Abstract

Exosomes are naturally derived information carriers that present interest as drug delivery systems. However, their vague cargo and isolation difficulties hinder their use in clinical practice. To overcome these limitations, we developed exosome-like nanoparticles, consisted of the main lipids of exosomes, using two distinct methods: thin-film hydration and 3D-printed microfluidics. Our novel microfluidic device, fabricated through digital light processing printing, demonstrated a favorable architecture to produce exosome-like nanoparticles. We compared these two techniques by analyzing the physicochemical characteristics (size, size distribution, and ζ-potential) of both unloaded and genistein-loaded exosome-like nanoparticles, using dynamic and electrophoretic light scattering. Our findings revealed that the presence of small lipophilic molecules, cholesterol and/or genistein, influenced the characteristics of the final formulations differently based on the development approach. Regardless of the initial differences of the formulations, all exosome-like nanoparticles, whether loaded with genistein or not, exhibited remarkable colloidal stability over time. Furthermore, an encapsulation efficiency of over 87% for genistein was achieved in all cases. Additionally, thermal analysis uncovered the presence of metastable phases within the membranes, which could impact the drug delivery efficiency. In summary, this study provides a comprehensive comparison between conventional and innovative methods for producing complex liposomal nanosystems, exemplified by exosome-like nanoparticles.

Item Type:	Article
Uncontrolled Keywords:	exosomes, liposomes, microfluidics, 3D printing, nanoparticles
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Science (SCI)
Last Modified:	12 Dec 2025 15:27
URI:	https://gala.gre.ac.uk/id/eprint/51941

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