Cargando…
Study of the Electrocatalytic Activity of Cerium Oxide and Gold-Studded Cerium Oxide Nanoparticles Using a Sonogel-Carbon Material as Supporting Electrode: Electroanalytical Study in Apple Juice for Babies
The present work reports a study of the electrocatalytic activity of CeO(2) nanoparticles and gold sononanoparticles (AuSNPs)/CeO(2) nanocomposite, deposited on the surface of a Sonogel-Carbon (SNGC) matrix used as supporting electrode and the application of the sensing devices built with them to th...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Molecular Diversity Preservation International (MDPI)
2013
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3673122/ https://www.ncbi.nlm.nih.gov/pubmed/23584124 http://dx.doi.org/10.3390/s130404979 |
_version_ | 1782272214278602752 |
---|---|
author | Abdelrahim, M. Yahia M. Benjamin, Stephen R. Cubillana-Aguilera, Laura Ma Naranjo-Rodríguez, Ignacio Hidalgo-Hidalgo de Cisneros, Josè L. Delgado, Juan Josè Palacios-Santander, Josè Ma |
author_facet | Abdelrahim, M. Yahia M. Benjamin, Stephen R. Cubillana-Aguilera, Laura Ma Naranjo-Rodríguez, Ignacio Hidalgo-Hidalgo de Cisneros, Josè L. Delgado, Juan Josè Palacios-Santander, Josè Ma |
author_sort | Abdelrahim, M. Yahia M. |
collection | PubMed |
description | The present work reports a study of the electrocatalytic activity of CeO(2) nanoparticles and gold sononanoparticles (AuSNPs)/CeO(2) nanocomposite, deposited on the surface of a Sonogel-Carbon (SNGC) matrix used as supporting electrode and the application of the sensing devices built with them to the determination of ascorbic acid (AA) used as a benchmark analyte. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used to investigate the electrocatalytic behavior of CeO(2)- and AuSNPs/CeO(2)-modified SNGC electrodes, utilizing different concentrations of CeO(2) nanoparticles and different AuSNPs:CeO(2) w/w ratios. The best detection and quantification limits, obtained for CeO(2) (10.0 mg·mL(−1))- and AuSNPs/CeO(2) (3.25% w/w)-modified SNGC electrodes, were 1.59 × 10(−6) and 5.32 × 10(−6) M, and 2.93 × 10(−6) and 9.77 × 10(−6) M, respectively, with reproducibility values of 5.78% and 6.24%, respectively, for a linear concentration range from 1.5 μM to 4.0 mM of AA. The electrochemical devices were tested for the determination of AA in commercial apple juice for babies. The results were compared with those obtained by applying high performance liquid chromatography (HPLC) as a reference method. Recovery errors below 5% were obtained in most cases, with standard deviations lower than 3% for all the modified SNGC electrodes. Bare, CeO(2)- and AuSNPs/CeO(2)-modified SNGC electrodes were structurally characterized using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). AuSNPs and AuSNPs/CeO(2) nanocomposite were characterized by UV-vis spectroscopy and X-ray diffraction (XRD), and information about their size distribution and shape was obtained by transmission electron microscopy (TEM;. The advantages of employing CeO(2) nanoparticles and AuSNPs/CeO(2) nanocomposite in SNGC supporting material are also described. This research suggests that the modified electrode can be a very promising voltammetric sensor for the determination of electroactive species of interest in real samples. |
format | Online Article Text |
id | pubmed-3673122 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Molecular Diversity Preservation International (MDPI) |
record_format | MEDLINE/PubMed |
spelling | pubmed-36731222013-06-19 Study of the Electrocatalytic Activity of Cerium Oxide and Gold-Studded Cerium Oxide Nanoparticles Using a Sonogel-Carbon Material as Supporting Electrode: Electroanalytical Study in Apple Juice for Babies Abdelrahim, M. Yahia M. Benjamin, Stephen R. Cubillana-Aguilera, Laura Ma Naranjo-Rodríguez, Ignacio Hidalgo-Hidalgo de Cisneros, Josè L. Delgado, Juan Josè Palacios-Santander, Josè Ma Sensors (Basel) Article The present work reports a study of the electrocatalytic activity of CeO(2) nanoparticles and gold sononanoparticles (AuSNPs)/CeO(2) nanocomposite, deposited on the surface of a Sonogel-Carbon (SNGC) matrix used as supporting electrode and the application of the sensing devices built with them to the determination of ascorbic acid (AA) used as a benchmark analyte. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used to investigate the electrocatalytic behavior of CeO(2)- and AuSNPs/CeO(2)-modified SNGC electrodes, utilizing different concentrations of CeO(2) nanoparticles and different AuSNPs:CeO(2) w/w ratios. The best detection and quantification limits, obtained for CeO(2) (10.0 mg·mL(−1))- and AuSNPs/CeO(2) (3.25% w/w)-modified SNGC electrodes, were 1.59 × 10(−6) and 5.32 × 10(−6) M, and 2.93 × 10(−6) and 9.77 × 10(−6) M, respectively, with reproducibility values of 5.78% and 6.24%, respectively, for a linear concentration range from 1.5 μM to 4.0 mM of AA. The electrochemical devices were tested for the determination of AA in commercial apple juice for babies. The results were compared with those obtained by applying high performance liquid chromatography (HPLC) as a reference method. Recovery errors below 5% were obtained in most cases, with standard deviations lower than 3% for all the modified SNGC electrodes. Bare, CeO(2)- and AuSNPs/CeO(2)-modified SNGC electrodes were structurally characterized using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). AuSNPs and AuSNPs/CeO(2) nanocomposite were characterized by UV-vis spectroscopy and X-ray diffraction (XRD), and information about their size distribution and shape was obtained by transmission electron microscopy (TEM;. The advantages of employing CeO(2) nanoparticles and AuSNPs/CeO(2) nanocomposite in SNGC supporting material are also described. This research suggests that the modified electrode can be a very promising voltammetric sensor for the determination of electroactive species of interest in real samples. Molecular Diversity Preservation International (MDPI) 2013-04-12 /pmc/articles/PMC3673122/ /pubmed/23584124 http://dx.doi.org/10.3390/s130404979 Text en © 2013 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license(http://creativecommons.org/licenses/by/3.0/). |
spellingShingle | Article Abdelrahim, M. Yahia M. Benjamin, Stephen R. Cubillana-Aguilera, Laura Ma Naranjo-Rodríguez, Ignacio Hidalgo-Hidalgo de Cisneros, Josè L. Delgado, Juan Josè Palacios-Santander, Josè Ma Study of the Electrocatalytic Activity of Cerium Oxide and Gold-Studded Cerium Oxide Nanoparticles Using a Sonogel-Carbon Material as Supporting Electrode: Electroanalytical Study in Apple Juice for Babies |
title | Study of the Electrocatalytic Activity of Cerium Oxide and Gold-Studded Cerium Oxide Nanoparticles Using a Sonogel-Carbon Material as Supporting Electrode: Electroanalytical Study in Apple Juice for Babies |
title_full | Study of the Electrocatalytic Activity of Cerium Oxide and Gold-Studded Cerium Oxide Nanoparticles Using a Sonogel-Carbon Material as Supporting Electrode: Electroanalytical Study in Apple Juice for Babies |
title_fullStr | Study of the Electrocatalytic Activity of Cerium Oxide and Gold-Studded Cerium Oxide Nanoparticles Using a Sonogel-Carbon Material as Supporting Electrode: Electroanalytical Study in Apple Juice for Babies |
title_full_unstemmed | Study of the Electrocatalytic Activity of Cerium Oxide and Gold-Studded Cerium Oxide Nanoparticles Using a Sonogel-Carbon Material as Supporting Electrode: Electroanalytical Study in Apple Juice for Babies |
title_short | Study of the Electrocatalytic Activity of Cerium Oxide and Gold-Studded Cerium Oxide Nanoparticles Using a Sonogel-Carbon Material as Supporting Electrode: Electroanalytical Study in Apple Juice for Babies |
title_sort | study of the electrocatalytic activity of cerium oxide and gold-studded cerium oxide nanoparticles using a sonogel-carbon material as supporting electrode: electroanalytical study in apple juice for babies |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3673122/ https://www.ncbi.nlm.nih.gov/pubmed/23584124 http://dx.doi.org/10.3390/s130404979 |
work_keys_str_mv | AT abdelrahimmyahiam studyoftheelectrocatalyticactivityofceriumoxideandgoldstuddedceriumoxidenanoparticlesusingasonogelcarbonmaterialassupportingelectrodeelectroanalyticalstudyinapplejuiceforbabies AT benjaminstephenr studyoftheelectrocatalyticactivityofceriumoxideandgoldstuddedceriumoxidenanoparticlesusingasonogelcarbonmaterialassupportingelectrodeelectroanalyticalstudyinapplejuiceforbabies AT cubillanaaguileralaurama studyoftheelectrocatalyticactivityofceriumoxideandgoldstuddedceriumoxidenanoparticlesusingasonogelcarbonmaterialassupportingelectrodeelectroanalyticalstudyinapplejuiceforbabies AT naranjorodriguezignacio studyoftheelectrocatalyticactivityofceriumoxideandgoldstuddedceriumoxidenanoparticlesusingasonogelcarbonmaterialassupportingelectrodeelectroanalyticalstudyinapplejuiceforbabies AT hidalgohidalgodecisnerosjosel studyoftheelectrocatalyticactivityofceriumoxideandgoldstuddedceriumoxidenanoparticlesusingasonogelcarbonmaterialassupportingelectrodeelectroanalyticalstudyinapplejuiceforbabies AT delgadojuanjose studyoftheelectrocatalyticactivityofceriumoxideandgoldstuddedceriumoxidenanoparticlesusingasonogelcarbonmaterialassupportingelectrodeelectroanalyticalstudyinapplejuiceforbabies AT palaciossantanderjosema studyoftheelectrocatalyticactivityofceriumoxideandgoldstuddedceriumoxidenanoparticlesusingasonogelcarbonmaterialassupportingelectrodeelectroanalyticalstudyinapplejuiceforbabies |