SÍNTESE DE NANOPARTÍCULAS DE OURO E SENSORIAMENTO COLORIMÉTRICO DO SULFATIAZOL: UMA PRÁTICA EXPERIMENTAL PARA AULAS INTERDISCIPLINARES
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422022000500630 |
Resumo: | Students undertaking courses in the field of sciences and engineering need to learn practical skills and conceptual knowledge, and the experimental classes are the best moment for this. In this paper, we propose a practical experiment to aid nanotechnology learning by synthesizing gold nanoparticles (AuNPs) and their application as a colorimetric sensor of sulfathiazole. AuNPs were prepared using sodium citrate as a reducing and capping agent. The existence of the synthesized AuNPs was detected using the Tyndall effect while their optical properties were investigated by molecular absorption spectrophotometry. The gold nanoparticles exhibit spherical-like shape morphology and an average size of 13.6 nm, determined by transmission electron microscopy. The AuNPs were applied as a colorimetric sensor for the detection of sulfathiazole in mixed water/ethanol solution by simple visual inspection and using molecular absorption spectrophotometry. Due to the simplicity of the experimental steps, this activity is well-suited for a hands-on introduction of nanoparticles synthesis and its application as a molecular sensor. In addition, the experiment encompasses knowledge from different fields being suitable for interdisciplinary classes. |
id |
SBQ-3_3b44a36202416d9081fc4e299ba92f0b |
---|---|
oai_identifier_str |
oai:scielo:S0100-40422022000500630 |
network_acronym_str |
SBQ-3 |
network_name_str |
Química Nova (Online) |
repository_id_str |
|
spelling |
SÍNTESE DE NANOPARTÍCULAS DE OURO E SENSORIAMENTO COLORIMÉTRICO DO SULFATIAZOL: UMA PRÁTICA EXPERIMENTAL PARA AULAS INTERDISCIPLINARESnanotechnologyinterdisciplinarygold nanoparticlescolorimetric sensorhigher educationStudents undertaking courses in the field of sciences and engineering need to learn practical skills and conceptual knowledge, and the experimental classes are the best moment for this. In this paper, we propose a practical experiment to aid nanotechnology learning by synthesizing gold nanoparticles (AuNPs) and their application as a colorimetric sensor of sulfathiazole. AuNPs were prepared using sodium citrate as a reducing and capping agent. The existence of the synthesized AuNPs was detected using the Tyndall effect while their optical properties were investigated by molecular absorption spectrophotometry. The gold nanoparticles exhibit spherical-like shape morphology and an average size of 13.6 nm, determined by transmission electron microscopy. The AuNPs were applied as a colorimetric sensor for the detection of sulfathiazole in mixed water/ethanol solution by simple visual inspection and using molecular absorption spectrophotometry. Due to the simplicity of the experimental steps, this activity is well-suited for a hands-on introduction of nanoparticles synthesis and its application as a molecular sensor. In addition, the experiment encompasses knowledge from different fields being suitable for interdisciplinary classes.Sociedade Brasileira de Química2022-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422022000500630Química Nova v.45 n.5 2022reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0100-4042.20170858info:eu-repo/semantics/openAccessSantos,Elias BarrosMatos,Letícia CuestaMazali,Italo Odonepor2022-07-18T00:00:00Zoai:scielo:S0100-40422022000500630Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2022-07-18T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
SÍNTESE DE NANOPARTÍCULAS DE OURO E SENSORIAMENTO COLORIMÉTRICO DO SULFATIAZOL: UMA PRÁTICA EXPERIMENTAL PARA AULAS INTERDISCIPLINARES |
title |
SÍNTESE DE NANOPARTÍCULAS DE OURO E SENSORIAMENTO COLORIMÉTRICO DO SULFATIAZOL: UMA PRÁTICA EXPERIMENTAL PARA AULAS INTERDISCIPLINARES |
spellingShingle |
SÍNTESE DE NANOPARTÍCULAS DE OURO E SENSORIAMENTO COLORIMÉTRICO DO SULFATIAZOL: UMA PRÁTICA EXPERIMENTAL PARA AULAS INTERDISCIPLINARES Santos,Elias Barros nanotechnology interdisciplinary gold nanoparticles colorimetric sensor higher education |
title_short |
SÍNTESE DE NANOPARTÍCULAS DE OURO E SENSORIAMENTO COLORIMÉTRICO DO SULFATIAZOL: UMA PRÁTICA EXPERIMENTAL PARA AULAS INTERDISCIPLINARES |
title_full |
SÍNTESE DE NANOPARTÍCULAS DE OURO E SENSORIAMENTO COLORIMÉTRICO DO SULFATIAZOL: UMA PRÁTICA EXPERIMENTAL PARA AULAS INTERDISCIPLINARES |
title_fullStr |
SÍNTESE DE NANOPARTÍCULAS DE OURO E SENSORIAMENTO COLORIMÉTRICO DO SULFATIAZOL: UMA PRÁTICA EXPERIMENTAL PARA AULAS INTERDISCIPLINARES |
title_full_unstemmed |
SÍNTESE DE NANOPARTÍCULAS DE OURO E SENSORIAMENTO COLORIMÉTRICO DO SULFATIAZOL: UMA PRÁTICA EXPERIMENTAL PARA AULAS INTERDISCIPLINARES |
title_sort |
SÍNTESE DE NANOPARTÍCULAS DE OURO E SENSORIAMENTO COLORIMÉTRICO DO SULFATIAZOL: UMA PRÁTICA EXPERIMENTAL PARA AULAS INTERDISCIPLINARES |
author |
Santos,Elias Barros |
author_facet |
Santos,Elias Barros Matos,Letícia Cuesta Mazali,Italo Odone |
author_role |
author |
author2 |
Matos,Letícia Cuesta Mazali,Italo Odone |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Santos,Elias Barros Matos,Letícia Cuesta Mazali,Italo Odone |
dc.subject.por.fl_str_mv |
nanotechnology interdisciplinary gold nanoparticles colorimetric sensor higher education |
topic |
nanotechnology interdisciplinary gold nanoparticles colorimetric sensor higher education |
description |
Students undertaking courses in the field of sciences and engineering need to learn practical skills and conceptual knowledge, and the experimental classes are the best moment for this. In this paper, we propose a practical experiment to aid nanotechnology learning by synthesizing gold nanoparticles (AuNPs) and their application as a colorimetric sensor of sulfathiazole. AuNPs were prepared using sodium citrate as a reducing and capping agent. The existence of the synthesized AuNPs was detected using the Tyndall effect while their optical properties were investigated by molecular absorption spectrophotometry. The gold nanoparticles exhibit spherical-like shape morphology and an average size of 13.6 nm, determined by transmission electron microscopy. The AuNPs were applied as a colorimetric sensor for the detection of sulfathiazole in mixed water/ethanol solution by simple visual inspection and using molecular absorption spectrophotometry. Due to the simplicity of the experimental steps, this activity is well-suited for a hands-on introduction of nanoparticles synthesis and its application as a molecular sensor. In addition, the experiment encompasses knowledge from different fields being suitable for interdisciplinary classes. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-05-01 |
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=S0100-40422022000500630 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422022000500630 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.21577/0100-4042.20170858 |
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 |
Química Nova v.45 n.5 2022 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318121880649728 |