Modified silica nanoparticles with an Aminonaphthoquinone
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000500021 |
Resumo: | The synthesis and characterization of silica nanoparticles (NPs) covalently modified with an aminonaphthoquinone are reported. The aminopropylsilicagelnaphthoquinone (APSGNQ) was obtained by nucleophilic substitution of 2-methoxy-1,4-naphthoquinone with aminopropylsilicalgel (APSG) NPs. Solid state 13C and 29Si nuclear magnetic resonance spectra confirmed that the naphthoquinone is covalently bonded to APSG. Due to the solubility of APSGNQ in common organic solvents, solution ultraviolet-visible spectroscopy was used to determine the amount of naphthoquinone on the NPs surface (0.56 mmol of incorporated naphthoquinone per gram of APSGNQ) by comparison with the spectrum of 2-aminobutyl-1,4-naphthoquinone (ABNQ). Elemental analysis indicated that about 8% of the surface propylamine remained unreacted in APSGNQ. These multifunctional silica NPs have potential in medical applications. |
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Journal of the Brazilian Chemical Society (Online) |
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Modified silica nanoparticles with an Aminonaphthoquinonemultifunctional materialsilica nanoparticlesnaphthoquinonessolid state 13C and 29Si NMRThe synthesis and characterization of silica nanoparticles (NPs) covalently modified with an aminonaphthoquinone are reported. The aminopropylsilicagelnaphthoquinone (APSGNQ) was obtained by nucleophilic substitution of 2-methoxy-1,4-naphthoquinone with aminopropylsilicalgel (APSG) NPs. Solid state 13C and 29Si nuclear magnetic resonance spectra confirmed that the naphthoquinone is covalently bonded to APSG. Due to the solubility of APSGNQ in common organic solvents, solution ultraviolet-visible spectroscopy was used to determine the amount of naphthoquinone on the NPs surface (0.56 mmol of incorporated naphthoquinone per gram of APSGNQ) by comparison with the spectrum of 2-aminobutyl-1,4-naphthoquinone (ABNQ). Elemental analysis indicated that about 8% of the surface propylamine remained unreacted in APSGNQ. These multifunctional silica NPs have potential in medical applications.Sociedade Brasileira de Química2011-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000500021Journal of the Brazilian Chemical Society v.22 n.5 2011reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532011000500021info:eu-repo/semantics/openAccessSilveira,Gleiciani QRonconi,Célia MVargas,Maria DSan Gil,Rosane A. SMagalhães,Alviclereng2011-05-16T00:00:00Zoai:scielo:S0103-50532011000500021Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2011-05-16T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Modified silica nanoparticles with an Aminonaphthoquinone |
title |
Modified silica nanoparticles with an Aminonaphthoquinone |
spellingShingle |
Modified silica nanoparticles with an Aminonaphthoquinone Silveira,Gleiciani Q multifunctional material silica nanoparticles naphthoquinones solid state 13C and 29Si NMR |
title_short |
Modified silica nanoparticles with an Aminonaphthoquinone |
title_full |
Modified silica nanoparticles with an Aminonaphthoquinone |
title_fullStr |
Modified silica nanoparticles with an Aminonaphthoquinone |
title_full_unstemmed |
Modified silica nanoparticles with an Aminonaphthoquinone |
title_sort |
Modified silica nanoparticles with an Aminonaphthoquinone |
author |
Silveira,Gleiciani Q |
author_facet |
Silveira,Gleiciani Q Ronconi,Célia M Vargas,Maria D San Gil,Rosane A. S Magalhães,Alvicler |
author_role |
author |
author2 |
Ronconi,Célia M Vargas,Maria D San Gil,Rosane A. S Magalhães,Alvicler |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Silveira,Gleiciani Q Ronconi,Célia M Vargas,Maria D San Gil,Rosane A. S Magalhães,Alvicler |
dc.subject.por.fl_str_mv |
multifunctional material silica nanoparticles naphthoquinones solid state 13C and 29Si NMR |
topic |
multifunctional material silica nanoparticles naphthoquinones solid state 13C and 29Si NMR |
description |
The synthesis and characterization of silica nanoparticles (NPs) covalently modified with an aminonaphthoquinone are reported. The aminopropylsilicagelnaphthoquinone (APSGNQ) was obtained by nucleophilic substitution of 2-methoxy-1,4-naphthoquinone with aminopropylsilicalgel (APSG) NPs. Solid state 13C and 29Si nuclear magnetic resonance spectra confirmed that the naphthoquinone is covalently bonded to APSG. Due to the solubility of APSGNQ in common organic solvents, solution ultraviolet-visible spectroscopy was used to determine the amount of naphthoquinone on the NPs surface (0.56 mmol of incorporated naphthoquinone per gram of APSGNQ) by comparison with the spectrum of 2-aminobutyl-1,4-naphthoquinone (ABNQ). Elemental analysis indicated that about 8% of the surface propylamine remained unreacted in APSGNQ. These multifunctional silica NPs have potential in medical applications. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-05-01 |
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=S0103-50532011000500021 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000500021 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532011000500021 |
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 |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.22 n.5 2011 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318172269969408 |