Polymeric Composite including Magnetite Nanoparticles for Hydrogen Peroxide Detection
The combination of a biopolymer and a conductive polymer can produce new materials with improved physico-chemical and morphological properties that enhance their use as sensors. Magnetite nanoparticles (MN) can be further introduced to these new matrices to improve the analytical performance. This s...
| Authors: | ; ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2023 |
| Country: | España |
| Institution: | Universidad Autónoma de Madrid |
| Repository: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Language: | English |
| OAI Identifier: | oai:repositorio.uam.es:10486/713721 |
| Online Access: | http://hdl.handle.net/10486/713721 https://dx.doi.org/10.3390/chemosensors11060323 |
| Access Level: | Open access |
| Keyword: | Amperometric sensor cashew gum doping hydrogen peroxide magnetite nanoparticles polypyrrole Química |
| _version_ | 1878735498741022720 |
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| author | Oliveira, Maria Roniele Felix |
| author2 | Herrasti González, Pilar Furtado, Roselayne Ferro Melo, Airis Maria Araújo Alves, Carlucio Roberto |
| author2_role | author author author author |
| author_browse | Alves, Carlucio Roberto Furtado, Roselayne Ferro Herrasti González, Pilar Melo, Airis Maria Araújo Oliveira, Maria Roniele Felix |
| author_facet | Oliveira, Maria Roniele Felix Herrasti González, Pilar Furtado, Roselayne Ferro Melo, Airis Maria Araújo Alves, Carlucio Roberto |
| author_role | author |
| collection | Biblos-e Archivo. Repositorio Institucional de la UAM |
| description | The combination of a biopolymer and a conductive polymer can produce new materials with improved physico-chemical and morphological properties that enhance their use as sensors. Magnetite nanoparticles (MN) can be further introduced to these new matrices to improve the analytical performance. This study aimed to evaluate the electrocatalytic response of nanocomposites formed by the introduction of MN to polypyrrole (PPy) doped in the presence of cashew gum polysaccharide (CGP) and in the presence of carboxymethylated cashew gum polysaccharide (CCGP). Characterization of the nanocomposites was carried out via transmission electron microscopy (TEM) and infrared spectroscopy (FTIR) and showed that the absorption band of the blend was shifted to a higher frequency in the nanocomposites, indicating the intermolecular interaction between the blend and nanoparticles. The electrocatalytic performance of the nanocomposites was evaluated by applying a constant potential of −0.7 V with successive additions of H2O2 (1 mmol L−1) in 10 mmol L−1 phosphate buffer under agitation at pH 7.5. The nanocomposite formed by the introduction of MN to polypyrrole doped with cashew gum polysaccharide (PPy(cgp)–MN) displayed excellent electrocatalytic surface properties, with high H2O2 specificity, a linear response (R2 = 0.99), high sensitivity (0.28 µmol L−1), and a low H2O2 detection limit (0.072 mmol L−1) |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_7de2b4ecc59b20c2e64978256b3cfa57 |
| institution | Universidad Autónoma de Madrid |
| instname_str | Universidad Autónoma de Madrid |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:repositorio.uam.es:10486/713721 |
| publishDate | 2023 |
| publishDateSort | 2023 |
| publisher | Multidisciplinary Digital Publishing Institute (MDPI) |
| publisherStr | Multidisciplinary Digital Publishing Institute (MDPI) |
| reponame_str | Biblos-e Archivo. Repositorio Institucional de la UAM |
| spelling | Polymeric Composite including Magnetite Nanoparticles for Hydrogen Peroxide Detection Oliveira, Maria Roniele Felix Herrasti González, Pilar Furtado, Roselayne Ferro Melo, Airis Maria Araújo Alves, Carlucio Roberto Amperometric sensor cashew gum doping hydrogen peroxide magnetite nanoparticles polypyrrole Química The combination of a biopolymer and a conductive polymer can produce new materials with improved physico-chemical and morphological properties that enhance their use as sensors. Magnetite nanoparticles (MN) can be further introduced to these new matrices to improve the analytical performance. This study aimed to evaluate the electrocatalytic response of nanocomposites formed by the introduction of MN to polypyrrole (PPy) doped in the presence of cashew gum polysaccharide (CGP) and in the presence of carboxymethylated cashew gum polysaccharide (CCGP). Characterization of the nanocomposites was carried out via transmission electron microscopy (TEM) and infrared spectroscopy (FTIR) and showed that the absorption band of the blend was shifted to a higher frequency in the nanocomposites, indicating the intermolecular interaction between the blend and nanoparticles. The electrocatalytic performance of the nanocomposites was evaluated by applying a constant potential of −0.7 V with successive additions of H2O2 (1 mmol L−1) in 10 mmol L−1 phosphate buffer under agitation at pH 7.5. The nanocomposite formed by the introduction of MN to polypyrrole doped with cashew gum polysaccharide (PPy(cgp)–MN) displayed excellent electrocatalytic surface properties, with high H2O2 specificity, a linear response (R2 = 0.99), high sensitivity (0.28 µmol L−1), and a low H2O2 detection limit (0.072 mmol L−1) This research was funded by Spanish Ministry of Science and Innovation, grant number PID2021-123431OB-I00 and the Brazilian agencies, CAPES, FUNCAP and CNPQ, Embrapa Tropical Agroindustry. Multidisciplinary Digital Publishing Institute (MDPI) http://hdl.handle.net/10486/713721 https://dx.doi.org/10.3390/chemosensors11060323 |
| spellingShingle | Polymeric Composite including Magnetite Nanoparticles for Hydrogen Peroxide Detection Oliveira, Maria Roniele Felix Amperometric sensor cashew gum doping hydrogen peroxide magnetite nanoparticles polypyrrole Química |
| title | Polymeric Composite including Magnetite Nanoparticles for Hydrogen Peroxide Detection |
| title_full | Polymeric Composite including Magnetite Nanoparticles for Hydrogen Peroxide Detection |
| title_fullStr | Polymeric Composite including Magnetite Nanoparticles for Hydrogen Peroxide Detection |
| title_full_unstemmed | Polymeric Composite including Magnetite Nanoparticles for Hydrogen Peroxide Detection |
| title_short | Polymeric Composite including Magnetite Nanoparticles for Hydrogen Peroxide Detection |
| title_sort | Polymeric Composite including Magnetite Nanoparticles for Hydrogen Peroxide Detection |
| topic | Amperometric sensor cashew gum doping hydrogen peroxide magnetite nanoparticles polypyrrole Química |
| topic_facet | Amperometric sensor cashew gum doping hydrogen peroxide magnetite nanoparticles polypyrrole Química |
| url | http://hdl.handle.net/10486/713721 https://dx.doi.org/10.3390/chemosensors11060323 |