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Tuning the morphology of block copolymer-based pH-triggered nanoplatforms as driven by changes in molecular weight and protocol of manufacturing
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SYSNO ASEP 0566953 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Tuning the morphology of block copolymer-based pH-triggered nanoplatforms as driven by changes in molecular weight and protocol of manufacturing Author(s) de Oliveira, F. A. (BR)
Batista, C. C. S. (BR)
Calumby Albuquerque, Lindomar J. (UMCH-V)
Černoch, Peter (UMCH-V) RID, ORCID
Steinhart, Miloš (UMCH-V) RID
Sincari, Vladimir (UMCH-V) ORCID, RID
Jäger, Alessandro (UMCH-V) RID, ORCID
Jäger, Eliezer (UMCH-V) ORCID, RID
Giacomelli, F. C. (BR)Source Title Journal of Colloid and Interface Science. - : Elsevier - ISSN 0021-9797
Roč. 635, April (2023), s. 406-416Number of pages 11 s. Language eng - English Country US - United States Keywords block copolymers ; micelles ; polymersomes Subject RIV CD - Macromolecular Chemistry OECD category Polymer science R&D Projects GC20-15479J GA ČR - Czech Science Foundation (CSF) GJ20-13946Y GA ČR - Czech Science Foundation (CSF) GJ20-15077Y GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UMCH-V - RVO:61389013 UT WOS 000926888200001 EID SCOPUS 85145347799 DOI 10.1016/j.jcis.2022.12.129 Annotation The ability to tune size and morphology of self-assemblies is particularly relevant in the development of delivery systems. By tailoring such structural parameters, one can provide larger cargo spaces or produce nanocarriers that can be loaded by hydrophilic and hydrophobic molecules starting ideally from the same polymer building unit. We herein demonstrate that the morphology of block copolymer-based pH-triggered nanoplatforms produced from poly(2-methyl-2-oxazoline)m-b-poly[2-(diisopropylamino)-ethyl methacrylate]n (PMeOxm-b-PDPAn) is remarkably influenced by the overall molecular weight of the block copolymer, and by the selected method used to produce the self-assemblies. Polymeric vesicles were produced by nanoprecipitation using a block copolymer of relatively low molecular weight (Mn ∼ 10 kg.mol−1). Very exciting though, despite the high hydrophobic weight ratio (wPDPA > 0.70), this method conducted to the formation of core–shell nanoparticles when block copolymers of higher molecular weight were used, thus suggesting that the fast (few seconds) self-assembly procedure is controlled by kinetics rather than thermodynamics. We further demonstrated the formation of vesicular structures using longer chains via the solvent-switch approach when the “switching” to the bad solvent is performed in a time scale of a few hours (approximately 3 hs). We accordingly demonstrate that using fairly simple methods one can easily tailor the morphology of such block copolymer self-assemblies, thereby producing a variety of structurally different pH-triggered nanoplatforms via a kinetic or thermodynamically-controlled process. This is certainly attractive towards the development of nanotechnology-based cargo delivery systems. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2024 Electronic address https://www.sciencedirect.com/science/article/pii/S0021979722022834?via%3Dihub
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