From micro to nano Raman

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dc.contributor.authorWETTER, NIKLAUSpt_BR
dc.contributor.authorFREITAS, ANDERSON Z.pt_BR
dc.contributor.authorBERECZKI, ALLANpt_BR
dc.contributor.authorPASCOAL, DIEGO R.C.pt_BR
dc.contributor.authorDIPOLD, JESSICApt_BR
dc.contributor.authorPARRA, DUCLERCpt_BR
dc.contributor.authorROSSI, WAGNERpt_BR
dc.contributor.authorCABRAL, FERNANDA V.pt_BR
dc.contributor.authorRIBEIRO, MARTHA S.pt_BR
dc.coverageNacionalpt_BR
dc.creator.eventoENCONTRO BRASILEIRO DE ESPECTROSCOPIA RAMAN, 7.pt_BR
dc.date.accessioned2023-02-01T11:42:27Z
dc.date.available2023-02-01T11:42:27Z
dc.date.evento5-8 de dezembro, 2022pt_BR
dc.description.abstractThe environmental accumulation of nanoplastics formed by material of anthropic origin has raised doubts about their safety, especially to the human body. While microplastics are accidentally consumed, nanoplastics (NPs) are even more concerning as they are much more likely to be absorbed by human body cells. It is known that plastics smaller than 200 nm can penetrate cell membranes and cross the blood-brain barrier. Studies have shown that polystyrene (PS) NPs from the environment carry a high load of toxins capable of compromising human brain cells. Very little is still known about what effects, cytotoxic or not, these plastics have on different organs. Understanding the property-function relationship of nanoparticles in various fields of application involves determining their physicochemical properties, which is still a formidable challenge to date. Our project focuses on the development of a methodology for the detection of micro- and NPs using micro-Raman, TERS (Tip Enhanced Raman Spectroscopy), collinear Raman and AFM, nuclear techniques, as well as a methodology for in vitro evaluation of the toxic effects of these materials through biochemical assays of cytotoxicity and genotoxicity. The project contemplates the determination of the adsorption capacity of metallic ions by NPs and the absorption of micro- and nanoplastics in cell cultures with radioactive tracers, the determination of microplastics in tissues from necropsies of marine animals and gamma spectroscopy of the cellular incorporation of NPs labeled with radioactive isotopes. In figure 1 we show examples of (a) the detection of microplastics from the Santos basin and comparison to Raman reference database (KnowItAll®), (b) detection of NPs in mouse fibroblast cells and (c) detection of very small particles (50 nm) which can be achieved by co-localized techniques of AFM + Raman using special, narrow (50 m), femtosecond laser written gratings on quartz.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipIDFAPESP: 16/02326-9; 17/10765-5; 18/19240-5; 19/06334-4; 21/11316-5; 22/07199-6pt_BR
dc.event.siglaEnBraERpt_BR
dc.identifier.citationWETTER, NIKLAUS; FREITAS, ANDERSON Z.; BERECZKI, ALLAN; PASCOAL, DIEGO R.C.; DIPOLD, JESSICA; PARRA, DUCLERC; ROSSI, WAGNER; CABRAL, FERNANDA V.; RIBEIRO, MARTHA S. From micro to nano Raman: new developments in the detection of micro and nanoplastics of marine origin from the Amazon basin to Santos. In: ENCONTRO BRASILEIRO DE ESPECTROSCOPIA RAMAN, 7., 5-8 de dezembro, 2022, São Pedro, SP. <b>Resumo...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/33685.
dc.identifier.orcid0000-0002-4203-1134pt_BR
dc.identifier.orcid0000-0003-1371-7521pt_BR
dc.identifier.orcid0000-0002-6481-0155pt_BR
dc.identifier.orcid0000-0002-5018-9126pt_BR
dc.identifier.orcid0000-0002-9379-9530pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-4203-1134
dc.identifier.orcidhttps://orcid.org/0000-0003-1371-7521
dc.identifier.orcidhttps://orcid.org/0000-0002-7626-880X
dc.identifier.orcidhttps://orcid.org/0000-0002-5018-9126
dc.identifier.orcidhttps://orcid.org/0000-0002-9379-9530
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/33685
dc.local.eventoSão Pedro, SPpt_BR
dc.rightsopenAccesspt_BR
dc.titleFrom micro to nano Ramanpt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorALLAN BERECZKI
ipen.autorDIEGO ROBERTO DA CUNHA PASCOAL
ipen.autorJESSICA DIPOLD
ipen.autorFERNANDA VIANA CABRAL
ipen.autorMARTHA SIMOES RIBEIRO
ipen.autorWAGNER DE ROSSI
ipen.autorDUCLERC FERNANDES PARRA
ipen.autorANDERSON ZANARDI DE FREITAS
ipen.autorNIKLAUS URSUS WETTER
ipen.codigoautor12080
ipen.codigoautor15807
ipen.codigoautor15190
ipen.codigoautor12732
ipen.codigoautor574
ipen.codigoautor73
ipen.codigoautor562
ipen.codigoautor880
ipen.codigoautor919
ipen.contributor.ipenauthorALLAN BERECZKI
ipen.contributor.ipenauthorDIEGO ROBERTO DA CUNHA PASCOAL
ipen.contributor.ipenauthorJESSICA DIPOLD
ipen.contributor.ipenauthorFERNANDA VIANA CABRAL
ipen.contributor.ipenauthorMARTHA SIMOES RIBEIRO
ipen.contributor.ipenauthorWAGNER DE ROSSI
ipen.contributor.ipenauthorDUCLERC FERNANDES PARRA
ipen.contributor.ipenauthorANDERSON ZANARDI DE FREITAS
ipen.contributor.ipenauthorNIKLAUS URSUS WETTER
ipen.date.recebimento23-02
ipen.event.datapadronizada2022pt_BR
ipen.identifier.ipendoc29319pt_BR
ipen.notas.internasResumopt_BR
ipen.subtitulonew developments in the detection of micro and nanoplastics of marine origin from the Amazon basin to Santospt_BR
ipen.type.genreResumo
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sigepi.autor.atividadeRIBEIRO, MARTHA S.:574:920:Npt_BR
sigepi.autor.atividadeCABRAL, FERNANDA V.:12732:920:Npt_BR
sigepi.autor.atividadeROSSI, WAGNER:73:920:Npt_BR
sigepi.autor.atividadePARRA, DUCLERC:562:750:Npt_BR
sigepi.autor.atividadeDIPOLD, JESSICA:15190:910:Npt_BR
sigepi.autor.atividadeBERECZKI, ALLAN:12080:910:Npt_BR
sigepi.autor.atividadeFREITAS, ANDERSON Z.:880:920:Npt_BR
sigepi.autor.atividadeWETTER, NIKLAUS:919:910:Spt_BR
sigepi.autor.atividadePASCOAL, DIEGO R.C.:15807:910:N
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