Unravelling the mechanisms of reactive oxygen species formation in nanohybrid systems of porphyrins and enriched (6,5) single-walled carbon nanotubes for photosensitization

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dc.creatorCamila Soares Monteiro
dc.creatorDaniele Cristina Ferreira
dc.creatorGustavo de Almeida Magalhães Sáfar
dc.creatorRafael Nunes Gontijo
dc.creatorCristiano Fantini Leite
dc.creatorDayse Carvalho da Silva Martins
dc.creatorYnara Marina Idemori
dc.creatorMauricio Veloso Brant Pinheiro
dc.creatorKlaus Wilhelm Heinrich Krambrock
dc.date.accessioned2022-11-01T18:31:23Z
dc.date.accessioned2025-09-09T01:31:40Z
dc.date.available2022-11-01T18:31:23Z
dc.date.issued2016
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.identifier.doihttps://doi.org/10.1039/c6cp03366k
dc.identifier.issn14639084
dc.identifier.urihttps://hdl.handle.net/1843/46829
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofPCCP - Physical Chemistry Chemical Physics
dc.rightsAcesso Restrito
dc.subjectEspectroscopia de Raman
dc.subjectNanotubos de carbono
dc.subject.otherEspectroscopia de absorção óptica
dc.subject.otherEspectroscopia de Raman
dc.subject.otherNanotubos de carbono
dc.subject.otherPorfirinas
dc.subject.otherTerapia fotodinâmica
dc.titleUnravelling the mechanisms of reactive oxygen species formation in nanohybrid systems of porphyrins and enriched (6,5) single-walled carbon nanotubes for photosensitization
dc.typeArtigo de periódico
local.citation.epage20465
local.citation.issue30
local.citation.spage20459
local.citation.volume18
local.description.resumoNanohybrids of enriched (6,5) single-walled semiconducting carbon nanotubes (E-SWCNTs) and porphyrin can be used synergistically as photodynamic therapy (PDT) agents. The efficiency of different porphyrins within the nanohybrids was investigated and compared with results obtained from porphyrins in previous studies. Reactive oxygen species singlet oxygen 1O2 and for the first time hydroxyl radical OH generation by the nanohybrids under illumination were detected by electron paramagnetic resonance using spin trapping molecules TEMP and PBN. Based on the analysis, we improve the modelling of charge transport within the nanohybrids, which is also detected by Raman scattering. It is shown that the 5,10,15,20-tetrakis(4 trimethylammoniumphenyl)porphyrin [H2TTMAPP(OTs)4] and E-SWCNT form very efficient nanohybrids for PDT applications in the visible spectral range.
local.identifier.orcidhttps://orcid.org/0000-0001-9523-1298
local.identifier.orcidhttps://orcid.org/0000-0003-1354-3138
local.identifier.orcidhttps://orcid.org/0000-0002-6335-483X
local.identifier.orcidhttps://orcid.org/0000-0003-0436-7857
local.identifier.orcidhttps://orcid.org/0000-0001-6230-2168
local.identifier.orcidhttps://orcid.org/0000-0001-5722-6260
local.identifier.orcidhttps://orcid.org/0000-0002-7562-0285
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://pubs.rsc.org/en/content/articlelanding/2016/CP/c6cp03366k

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