Poly(2-oxazoline)-Based Thermoresponsive Stomatocytes. Terracciano, R., Liu, Y., Varanaraja, Z., Godzina, M., Yilmaz, G., van Hest, J. C. M., & Becer, C. R. BIOMACROMOLECULES, 25(9):6050–6059, August, 2024.
doi  abstract   bibtex   
The design of biocompatible and biodegradable nanostructures with controlled morphological features remains a predominant challenge in medical research. Stimuli-responsive vesicles offer significant advantages in drug delivery, biomedical applications, and diagnostic techniques. The combination of poly(2-oxazoline)s with biodegradable polymers could provide exceptional biocompatibility properties and be proposed as a versatile platform for the development of new medicines. Therefore, poly(2-ethyl-2-oxazoline) (PEtOx) and poly(2-isopropyl-2-oxazoline) (PiPrOx) possessing a hydroxy terminal group that acts as an initiator for the ring-opening polymerization of d,l-lactide (DLLA) have been utilized in this study. The resulting amphiphilic block polymers were used to create polymersomes, which undergo solvent-dependent reorganization into bowl-shaped vesicles or stomatocytes. By blending PEtOx-b-PDLLA and PiPrOx-b-PDLLA copolymers, a thermoresponsive stomatocyte was generated, where the opening narrowed and irreversibly closed with a slight increase in the temperature. Detailed transmission electron microscopy analysis reveals the formation of both closed and fused stomatocytes upon heating the sample above the critical solution temperature of PiPrOx.
@article{terracciano_poly2-oxazoline-based_2024,
	title = {Poly(2-oxazoline)-{Based} {Thermoresponsive} {Stomatocytes}},
	volume = {25},
	issn = {1525-7797},
	doi = {10.1021/acs.biomac.4c00726},
	abstract = {The design of biocompatible and biodegradable nanostructures with controlled morphological features remains a predominant challenge in medical research. Stimuli-responsive vesicles offer significant advantages in drug delivery, biomedical applications, and diagnostic techniques. The combination of poly(2-oxazoline)s with biodegradable polymers could provide exceptional biocompatibility properties and be proposed as a versatile platform for the development of new medicines. Therefore, poly(2-ethyl-2-oxazoline) (PEtOx) and poly(2-isopropyl-2-oxazoline) (PiPrOx) possessing a hydroxy terminal group that acts as an initiator for the ring-opening polymerization of d,l-lactide (DLLA) have been utilized in this study. The resulting amphiphilic block polymers were used to create polymersomes, which undergo solvent-dependent reorganization into bowl-shaped vesicles or stomatocytes. By blending PEtOx-b-PDLLA and PiPrOx-b-PDLLA copolymers, a thermoresponsive stomatocyte was generated, where the opening narrowed and irreversibly closed with a slight increase in the temperature. Detailed transmission electron microscopy analysis reveals the formation of both closed and fused stomatocytes upon heating the sample above the critical solution temperature of PiPrOx.},
	number = {9},
	urldate = {2024-08-21},
	journal = {BIOMACROMOLECULES},
	author = {Terracciano, Roberto and Liu, Yuechi and Varanaraja, Zivani and Godzina, Magdalena and Yilmaz, Gokhan and van Hest, Jan C. M. and Becer, C. Remzi},
	month = aug,
	year = {2024},
	pages = {6050--6059},
}

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