L-cysteine functionalized gold nanoparticles for Arsenic detection in water
Experimental results of interactions of the amino acid L-cysteine (Cis) with gold nanoparticles (AuNPs) and gold nanoparticles functionalized with Cis (AuNPs+Cis) when As3+ ions are incorporated into the solution; all those processes are reported in this paper. In the aggregation processes, the role...
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| Format: | Online |
| Language: | spa |
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Universidad Pedagógica y Tecnológica de Colombia - UPTC
2022
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| Subjects: | |
| Online Access: | https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/14271 |
| _version_ | 1801706695628423168 |
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| author | González, Edgar E. Acuña, Yesid A. Quiroz, Ana M. |
| author_facet | González, Edgar E. Acuña, Yesid A. Quiroz, Ana M. |
| author_sort | González, Edgar E. |
| collection | OJS |
| description | Experimental results of interactions of the amino acid L-cysteine (Cis) with gold nanoparticles (AuNPs) and gold nanoparticles functionalized with Cis (AuNPs+Cis) when As3+ ions are incorporated into the solution; all those processes are reported in this paper. In the aggregation processes, the role of the Cis concentration in the functionalization of the AuNPs is evaluated, in addition to the size of the nanoparticles when the ionic agent of interest is incorporated into the solution. The results show a sensitive dependence on the aggregation of the AuNPs+Cis nanoprobes as a function of their size, with a record of greater sensitivity for larger diameter nanoparticles. It is observed that the concentration of Cis in the functionalization process is a necessary condition for the programming of the stability of the nanoprobes, an essential aspect to configure a stable mode for the detection of the ionic agent. Therefore, these results allow us to establish useful criteria to design of colorimetric sensors to detect of heavy metals in contaminated water. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-14271 |
| institution | Revista Ingeniería, Investigación y Desarrollo |
| language | spa |
| publishDate | 2022 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia - UPTC |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-142712022-06-16T16:18:48Z L-cysteine functionalized gold nanoparticles for Arsenic detection in water NANOPARTÍCULAS DE ORO FUNCIONALIZADAS CON L-CISTEÍNA PARA DETECCIÓN DE ARSÉNICO EN AGUA González, Edgar E. Acuña, Yesid A. Quiroz, Ana M. L-Cysteine gold nanoparticles colorimetric sensor L-Cisteína nanopartículas de oro sensor colorimétrico Experimental results of interactions of the amino acid L-cysteine (Cis) with gold nanoparticles (AuNPs) and gold nanoparticles functionalized with Cis (AuNPs+Cis) when As3+ ions are incorporated into the solution; all those processes are reported in this paper. In the aggregation processes, the role of the Cis concentration in the functionalization of the AuNPs is evaluated, in addition to the size of the nanoparticles when the ionic agent of interest is incorporated into the solution. The results show a sensitive dependence on the aggregation of the AuNPs+Cis nanoprobes as a function of their size, with a record of greater sensitivity for larger diameter nanoparticles. It is observed that the concentration of Cis in the functionalization process is a necessary condition for the programming of the stability of the nanoprobes, an essential aspect to configure a stable mode for the detection of the ionic agent. Therefore, these results allow us to establish useful criteria to design of colorimetric sensors to detect of heavy metals in contaminated water. En este artículo se reportan resultados experimentales de interacciones del aminoácido L-cisteína (Cis) con nanopartículas de oro (AuNPs) y nanopartículas de oro funcionalizadas con Cis (AuNPs+Cis) cuando se incorpora en la solución iones de As3+. En los procesos de agregación se evalúa el papel de la concentración de la Cis en la funcionalización, además del tamaño de las nanopartículas cuando se incorpora a la solución el agente iónico de interés. Los resultados muestran una sensible dependencia en la agregación de las nanosondas AuNPs+Cis en función de su tamaño, con un registro de mayor sensibilidad para nanopartículas de mayor diámetro. Se observa que la concentración de la Cis en el proceso defuncionalización es condición necesaria para la programación de la estabilidad de las nanosondas, aspecto esencial paraconfigurar un modo estable para detección del agente iónico. De manera que, estos resultados permiten establecer criteriosútiles para el diseño de sensores colorimétricos para detección de metales pesados en aguas contaminadas. Universidad Pedagógica y Tecnológica de Colombia - UPTC 2022-05-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/14271 10.19053/1900771X.v21.n2.2021.14271 Ingeniería Investigación y Desarrollo; Vol. 21 No. 2 (2021): Julio - Diciembre; 66-72 Ingeniería Investigación y Desarrollo; Vol. 21 Núm. 2 (2021): Julio - Diciembre; 66-72 2422-4324 1900-771X spa https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/14271/11620 Derechos de autor 2022 Ingeniería Investigación y Desarrollo |
| spellingShingle | L-Cysteine gold nanoparticles colorimetric sensor L-Cisteína nanopartículas de oro sensor colorimétrico González, Edgar E. Acuña, Yesid A. Quiroz, Ana M. L-cysteine functionalized gold nanoparticles for Arsenic detection in water |
| title | L-cysteine functionalized gold nanoparticles for Arsenic detection in water |
| title_alt | NANOPARTÍCULAS DE ORO FUNCIONALIZADAS CON L-CISTEÍNA PARA DETECCIÓN DE ARSÉNICO EN AGUA |
| title_full | L-cysteine functionalized gold nanoparticles for Arsenic detection in water |
| title_fullStr | L-cysteine functionalized gold nanoparticles for Arsenic detection in water |
| title_full_unstemmed | L-cysteine functionalized gold nanoparticles for Arsenic detection in water |
| title_short | L-cysteine functionalized gold nanoparticles for Arsenic detection in water |
| title_sort | l cysteine functionalized gold nanoparticles for arsenic detection in water |
| topic | L-Cysteine gold nanoparticles colorimetric sensor L-Cisteína nanopartículas de oro sensor colorimétrico |
| topic_facet | L-Cysteine gold nanoparticles colorimetric sensor L-Cisteína nanopartículas de oro sensor colorimétrico |
| url | https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/14271 |
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