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Use este identificador para citar ou linkar para este item: http://repositorio.unb.br/handle/10482/41269
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dc.contributor.authorAfiune, Luana A. F.-
dc.contributor.authorUshirobira, Camila Y.-
dc.contributor.authorBarbosa, Débora P. P.-
dc.contributor.authorSouza, Paulo Eduardo Narcizo de-
dc.contributor.authorLeles, Maria I. G.-
dc.contributor.authorCunha Filho, Marcílio Sérgio Soares da-
dc.contributor.authorGelfuso, Guilherme Martins-
dc.contributor.authorSoler, Maria Aparecida Godoy-
dc.contributor.authorGratieri, Taís-
dc.date.accessioned2021-06-23T15:54:47Z-
dc.date.available2021-06-23T15:54:47Z-
dc.date.issued2020-
dc.identifier.citationAFIUNE, Luana A. F. et al. Novel iron oxide nanocarriers loading finasteride or dutasteride: enhanced skin penetration for topical treatment of alopecia. International Journal of Pharmaceutics, v. 587, 119709, 25 set. 2020. DOI: https://doi.org/10.1016/j.ijpharm.2020.119709.pt_BR
dc.identifier.urihttps://repositorio.unb.br/handle/10482/41269-
dc.language.isoInglêspt_BR
dc.publisherElsevier B. V.pt_BR
dc.rightsAcesso Restritopt_BR
dc.titleNovel iron oxide nanocarriers loading finasteride or dutasteride : enhanced skin penetration for topical treatment of alopeciapt_BR
dc.typeArtigopt_BR
dc.subject.keywordAlopeciapt_BR
dc.subject.keywordDutasteridapt_BR
dc.subject.keywordFinasteridapt_BR
dc.subject.keywordFolículos capilarespt_BR
dc.subject.keywordPelept_BR
dc.subject.keywordNanopartículas metálicaspt_BR
dc.identifier.doihttps://doi.org/10.1016/j.ijpharm.2020.119709pt_BR
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/abs/pii/S0378517320306931pt_BR
dc.description.abstract1In the present study, iron oxide nanoparticles, in the form of maghemite core coated with lauric acid (ION), were synthesized and loaded with finasteride (FIN) or dutasteride (DUT) as a novel drug delivery system for the topical treatment of alopecia. Additionally, developed formulations (FIN-ION and DUT-ION) were completely elaborated with components involved in the follicle metabolism, i.e., lauric acid, which acts as a 5α-reductase inhibitor, and iron which deficiency has been related to hair loss aggravation. Stability assessment conducted over the course of 90 days showed they are highly stable, with pH 7.4, constant EE% (>99%), and practically unchanged particle size and zeta potential. Besides drug distribution, the actual number of iron oxide nanoparticles, through a newly developed method using ferromagnetic resonance, was determined in each skin layer following permeation experiments. Despite the same donor concentration of colloids, nanoparticle distribution in the skin varied according to the loaded molecule. While DUT did not interfere with the nanoparticle natural tendency to accumulate within the hair follicle shafts, FIN presence hampered nanosystem interaction with the skin. Still, both formulations provided a higher skin drug penetration, compared to each respective control solution. Additionally, iron nanocarriers present a desirable visual characteristic, as the dark color aspect might instantly help disguise scarce hair follicle areas. These findings suggest the nanoformulations are highly promising for alopecia therapies.pt_BR
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