0542700 - ÚMCH 2022 RIV NL eng J - Journal Article
Oleshchuk, Diana - Šálek, Petr - Dvořáková, Jana - Kučka, Jan - Pavlova, Ewa - Francová, P. - Šefc, L. - Proks, Vladimír
Biocompatible polypeptide nanogel: effect of surfactants on nanogelation in inverse miniemulsion, in vivo biodistribution and blood clearance evaluation.
Materials Science & Engineering C-Materials for Biological Applications. Roč. 126, July (2021), č. článku 111865. ISSN 0928-4931. E-ISSN 1873-0191
R&D Projects: GA ČR(CZ) GA18-03224S; GA ČR(CZ) GA18-07983S
Research Infrastructure: Czech-BioImaging II - 90129
Institutional support: RVO:61389013
Keywords : blood clearance * inverse miniemulsion * in vivo biodistribution
OECD category: Nano-materials (production and properties)
Impact factor: 8.457, year: 2021 ; AIS: 0.914, rok: 2021
Method of publishing: Limited access
Result website:
https://www.sciencedirect.com/science/article/pii/S0928493121000035?via%3DihubDOI: https://doi.org/10.1016/j.msec.2021.111865

Horseradish peroxidase (HRP)/H2O2-mediated crosslinking of polypeptides in inverse miniemulsion is a promising approach for the development of next-generation biocompatible and biodegradable nanogels. Herein, we present a fundamental investigation of the effects of three surfactants and their different concentrations on the (HRP)/H2O2-mediated nanogelation of poly[N5-(2-hydroxyethyl)-l-glutamine-ran-N5-propargyl-l-glutamine-ran-N5-(6-aminohexyl)-l-glutamine]-ran-N5-[2-(4-hydroxyphenyl)ethyl)-l-glutamine] (PHEG-Tyr) in inverse miniemulsion. The surfactants sorbitan monooleate (SPAN 80), polyoxyethylenesorbitan trioleate (TWEEN 85), and dioctyl sulfosuccinate sodium salt (AOT) were selected and their influence on the nanogel size, size distribution, and morphology was evaluated. The most effective nanogelation stabilization was achieved with 20 wt% nonionic surfactant SPAN 80. The diameter of the hydrogel nanoparticles was 230 nm (dynamic light scattering, DLS) and was confirmed also by nanoparticle tracking analysis (NTA) which showed the diameters ranging from 200 to 300 nm. Microscopy and image analyses showed that the nanogel in the dry state was spherical in shape and had number-average diameter Dn = 26 nm and dispersity Ð = 1.91. In the frozen-hydrated state, the nanogel appeared porous and was larger in size with Dn = 182 nm and Ð = 1.52. Our results indicated that the nanogelation of the polymer precursor required a higher concentration of surfactant than classical inverse miniemulsion polymerization to ensure effective stabilization. The developed polypeptide nanogel was radiolabeled with 125I, and in vivo biodistribution and blood clearance evaluations were performed. We found that the 125I-labeled nanogel was well-biodistributed in the bloodstream, cleared from mouse blood during 48 h by renal and hepatic pathways and did not provoke any sign of toxic effects.
Permanent Link: http://hdl.handle.net/11104/0320562