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: Статья из журнала
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Автор(ы)
: Murueva A. V., Dudaev A. E., Shishatskaya E. I., Ghorabe F. D. E., Nemtsev I. V., Lukyanenko A. V., Volova T. G.
Заглавие
: Biodegradable polymer casting films for drug delivery and cell culture
Колич.характеристики
:20 с
Место публикации
: Giant. - 2024. - Vol. 19. - Ст.100314. - ISSN 26665425 (eISSN),
DOI
10.1016/j.giant.2024.100314
Примечания
: Cited References: 112. - The study was funded by State Assignment of the Ministry of Science and Higher Education of the Russian Federation (project No. FWES-2021–0025)
Аннотация:
In this work, for the first time, films were obtained based on biodegradable polyhydroxyalkanoates (PHAs) - a copolymer of 3-hydroxybutyrate-co-3-hydroxyvalerate P(3HB-co-3HV) and a copolymer of 3-hydroxybutyrate-co-4-hydroxybutyrate P(3HB-co-4HB), containing
drugs
of different chemical structure and action - antibiotics (ceftazidime, doripenem), antiseptic (chlorhexidine) and tissue regeneration stimulator (Actovegin) for drug delivery and cell culture. Using SEM, AFM and measuring the contact angles of water wetting, it is shown how PHAs composition and loading of films of P(3HB-co-3HV) and P(3HB-co-4HB) with
drugs
affect the porosity, roughness indicators and adhesive properties of the surface. The constructed films are a depot form of drug, the release of which in vitro is realized for a long time, without burst releases, corresponds to Korsmeyer-Peppas and Higuchi models with diffusion character. Films loaded with antibiotics have pronounced antibacterial activity and suppress the development of pathogens S. aureus and E. coli, without a pronounced negative effect on the adhesion and proliferation of epidermal cells. In the cultures of human keratinocytes HaCaT it was shown that the presence of actovegin, as well as ceftazidime in the films, exhibits a stimulating effect, increasing their number. The results demonstrate the suitability of the depot-films for cellular technologies and are promising for the reconstruction of tissues complicated by infection.
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2.
Вид документа
: Статья из журнала
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Автор(ы)
: Volova, Tatiana G., Demidenko, Aleksey V., Murueva, Anastasiya V., Dudaev, Alexey E., Nemtsev I. V., Shishatskaya, Ekaterina I.
Заглавие
: Biodegradable polyhydroxyalkanoates formed by 3- and 4-hydroxybutyrate monomers to produce nanomembranes suitable for drug delivery and cell culture
Колич.характеристики
:23 с
Место публикации
: Technologies. - 2023. - Vol. 11, Is. 4. - Ст.106. - ISSN 22277080 (eISSN),
DOI
10.3390/technologies11040106
Примечания
: Cited References: 116. - his research was funded by State Assignment of the Ministry of Science and Higher Education of the Russian Federation (project No. 0287-2021-0025)
Аннотация:
Biodegradable polyhydroxyalkanoates, biopolymers of microbiological origin, formed by 3- and 4-hydroxybutyrate monomers P(3HB-co-4HB), were used to obtain nanomembranes loaded with
drugs
as cell carriers by electrospinning. Resorbable non-woven membranes from P(3HB-co-4HB) loaded with ceftazidime, doripinem, and actovegin have been obtained. The loading of membranes with
drugs
differently affected the size of fibers and the structure of membranes, and in all cases increased the hydrophilicity of the surface. The release of
drugs
in vitro was gradual, which corresponded to the Higuchi and Korsmeyer-Peppas models. Antibiotic-loaded membranes showed antibacterial activity against S. aureus and E. coli, in which growth inhibition zones were 41.7 ± 1.1 and 38.6 ± 1.7 mm for ceftazidime and doripinem, respectively. The study of the biological activity of membranes in the NIH 3T3 mouse fibroblast culture based on the results of DAPI and FITC staining of cells, as well as the MTT test, did not reveal a negative effect despite the presence of antibiotics in them. Samples containing actovegin exhibit a stimulating effect on fibroblasts. Biodegradable polyhydroxyalkanoates formed by 3-hydroxybutyrate and 4-hydroxybutyrate monomers provide electrospinning non-woven membranes suitable for long-term delivery of
drugs
and cultivation of eukaryotic cells, and are promising for the treatment of wound defects complicated by infection.
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