The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects

Detalhes bibliográficos
Autor(a) principal: Oliveira,Tatiana Aparecida
Data de Publicação: 2021
Outros Autores: Rubira,Rafael Jesus Gonçalves, Martin,Cibely da Silva, Barros,Anerise de, Mazali,Italo Odone, Constantino,Carlos José Leopoldo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700209
Resumo: Abstract Target molecules adsorbed onto metallic nanoparticles can have their Raman and/or fluorescence signals enhanced, leading to the called surface-enhanced [resonance] Raman scattering (SE[R]RS) or surface-enhanced fluorescence (SEF). Here we have applied Au nanorods (AuNRs) coated with a surfactant bilayer leading to a positive surface charge to investigate the role played by these AuNRs in colloidal suspension on SERRS and SEF effects of charged molecules. In the case of the anionic nickel (II) tetrasulfonated phthalocyanine (NiTsPc), besides achieving SERRS with an enhancement factor (EF) of ca. 105, the AuNRs allowed the analytical application of the SERRS effect for the NiTsPc between 8.3x10-6 and 4.0x10-5 mol L-1. The limit of detection of 4.8x10-7 mol L-1 (at 752 cm-1) and 1.3x10-6 mol L-1 (at 1338 cm-1) was found. In the case of the cationic methylene blue, the SEF effect was achieved reaching an EF of ca. 10. Besides, fundamental discussions are carried out considering the results presented here.
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spelling The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effectsgold nanorodsSERRSSEFcharge effectAbstract Target molecules adsorbed onto metallic nanoparticles can have their Raman and/or fluorescence signals enhanced, leading to the called surface-enhanced [resonance] Raman scattering (SE[R]RS) or surface-enhanced fluorescence (SEF). Here we have applied Au nanorods (AuNRs) coated with a surfactant bilayer leading to a positive surface charge to investigate the role played by these AuNRs in colloidal suspension on SERRS and SEF effects of charged molecules. In the case of the anionic nickel (II) tetrasulfonated phthalocyanine (NiTsPc), besides achieving SERRS with an enhancement factor (EF) of ca. 105, the AuNRs allowed the analytical application of the SERRS effect for the NiTsPc between 8.3x10-6 and 4.0x10-5 mol L-1. The limit of detection of 4.8x10-7 mol L-1 (at 752 cm-1) and 1.3x10-6 mol L-1 (at 1338 cm-1) was found. In the case of the cationic methylene blue, the SEF effect was achieved reaching an EF of ca. 10. Besides, fundamental discussions are carried out considering the results presented here.ABM, ABC, ABPol2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700209Materials Research v.24 suppl.1 2021reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2021-0029info:eu-repo/semantics/openAccessOliveira,Tatiana AparecidaRubira,Rafael Jesus GonçalvesMartin,Cibely da SilvaBarros,Anerise deMazali,Italo OdoneConstantino,Carlos José Leopoldoeng2021-07-13T00:00:00Zoai:scielo:S1516-14392021000700209Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2021-07-13T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects
title The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects
spellingShingle The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects
Oliveira,Tatiana Aparecida
gold nanorods
SERRS
SEF
charge effect
title_short The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects
title_full The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects
title_fullStr The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects
title_full_unstemmed The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects
title_sort The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects
author Oliveira,Tatiana Aparecida
author_facet Oliveira,Tatiana Aparecida
Rubira,Rafael Jesus Gonçalves
Martin,Cibely da Silva
Barros,Anerise de
Mazali,Italo Odone
Constantino,Carlos José Leopoldo
author_role author
author2 Rubira,Rafael Jesus Gonçalves
Martin,Cibely da Silva
Barros,Anerise de
Mazali,Italo Odone
Constantino,Carlos José Leopoldo
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Oliveira,Tatiana Aparecida
Rubira,Rafael Jesus Gonçalves
Martin,Cibely da Silva
Barros,Anerise de
Mazali,Italo Odone
Constantino,Carlos José Leopoldo
dc.subject.por.fl_str_mv gold nanorods
SERRS
SEF
charge effect
topic gold nanorods
SERRS
SEF
charge effect
description Abstract Target molecules adsorbed onto metallic nanoparticles can have their Raman and/or fluorescence signals enhanced, leading to the called surface-enhanced [resonance] Raman scattering (SE[R]RS) or surface-enhanced fluorescence (SEF). Here we have applied Au nanorods (AuNRs) coated with a surfactant bilayer leading to a positive surface charge to investigate the role played by these AuNRs in colloidal suspension on SERRS and SEF effects of charged molecules. In the case of the anionic nickel (II) tetrasulfonated phthalocyanine (NiTsPc), besides achieving SERRS with an enhancement factor (EF) of ca. 105, the AuNRs allowed the analytical application of the SERRS effect for the NiTsPc between 8.3x10-6 and 4.0x10-5 mol L-1. The limit of detection of 4.8x10-7 mol L-1 (at 752 cm-1) and 1.3x10-6 mol L-1 (at 1338 cm-1) was found. In the case of the cationic methylene blue, the SEF effect was achieved reaching an EF of ca. 10. Besides, fundamental discussions are carried out considering the results presented here.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700209
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700209
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2021-0029
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.24 suppl.1 2021
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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