Electrochemical detection of the L-cysteine using a carbon paste electrode modified with a conjugate of tetraamino cobalt (II) pthalocyanine and gold nanoparticles
Gold nanoparticles protected with a mixture of hexanothiol and MUA (11-mercaptoundecanoic acid) (AuNP1) were reacted with Co(II) tetraaminophtalocyanine (CoTAPc). The resulting nanoparticles formed via covalent bonds, AuNP2, were characterized by absorption spectra, infrared spectroscopy and transmi...
| Authors: | ; ; ; ; ; |
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| Format: | Article |
| Publication date: | 2015 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/83131 |
| Online Access: | https://hdl.handle.net/2117/83131 |
| Access Level: | Open access |
| Keyword: | Electrochemistry Nanoparticles Electroquímica Nanopartícules Àrees temàtiques de la UPC::Enginyeria química::Química física::Electroquímica |
| Summary: | Gold nanoparticles protected with a mixture of hexanothiol and MUA (11-mercaptoundecanoic acid) (AuNP1) were reacted with Co(II) tetraaminophtalocyanine (CoTAPc). The resulting nanoparticles formed via covalent bonds, AuNP2, were characterized by absorption spectra, infrared spectroscopy and transmission electron microscopy. Modified carbon paste electrodes were prepared with AuNP1, CoTAPc and AuNP2 and evaluated for electrochemical detection of L-cysteine by cyclic voltammetry. Sensing of L-cysteine was uniquely observed with the electrode modified with AuNP2 |
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