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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kubota, Lauro Tatsuo Maroneze, Camila Marchetti Dos Santos, Glauco P. da Costa, Luiz P. de Moraes, Vitoria B. |
| Description | Country affiliation: Brazil Author Affiliation: Maroneze CM ( Institute of Chemistry, State University of Campinas (UNICAMP), P.O. Box 6154, 13083-970 Campinas, SP, Brazil); Dos Santos GP ( Institute of Chemistry, State University of Campinas (UNICAMP), P.O. Box 6154, 13083-970 Campinas, SP, Brazil); de Moraes VB ( Institute of Chemistry, State University of Campinas (UNICAMP), P.O. Box 6154, 13083-970 Campinas, SP, Brazil); da Costa LP ( Programa de Pós-graduação em Biotecnologia Industrial - Universidade Tiradentes, Aracaju, SE, Brazil.); Kubota LT ( Institute of Chemistry, State University of Campinas (UNICAMP), P.O. Box 6154, 13083-970 Campinas, SP, Brazil) |
| Abstract | A hybrid platform based on ionic liquid-based alkoxysilane functionalized mesoporous silica was applied for the synthesis of supported Pt nanoparticles with peroxidase-like catalytic activity. The positively charged groups (imidazolium) chemically bonded to the surface provide dual-functionality as ion-exchangers to the hybrid material, firstly used for the in situ synthesis of the highly dispersed Pt nanostructures and, secondly, for the immobilization of biological species aiming biosensing purposes. The peroxidase-like catalytic activity of the SiO2/Imi/Pt material was evaluated towards the H2O2-mediated oxidation of a chromogenic peroxidase substrate (TMB), allowing the colorimetric detection of H2O2. Finally, to further explore the practical application of this nanomaterial-based artificial system, glucose oxidase (GOx) was immobilized on the catalytic porous platform and a bioassay for the colorimetric determination of glucose was successfully conducted as a model system. The enzyme-like catalytic properties of the SiO2/Imi/Pt as well as its ability to immobilize and keep active biological entities on the porous structure indicate that this hybrid porous platform is potentially useful for the development of biosensing devices. |
| ISSN | 09565663 |
| Volume Number | 77 |
| e-ISSN | 18734235 |
| Journal | Biosensors and Bioelectronics |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-03-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Colorimetry Instrumentation Glucose Oxidase Chemistry Glucose Analysis Hydrogen Peroxide Metal Nanoparticles Platinum Biomimetic Materials Catalysis Complex Mixtures Enzymes, Immobilized Horseradish Peroxidase Imidazoles Ionic Liquids Journal Article Research Support, Non-u.s. Gov't Discipline Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nanoscience and Nanotechnology Medicine Biophysics Biomedical Engineering Biotechnology Electrochemistry |
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