Tunnelling current recognition through core-satellite gold nanoparticles for ultrasensitive detection of copper ions
Data(s) |
18/02/2015
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Resumo |
We report a new method for ultrasensitive detection of Cu(2+), which is based on changes in the tunnelling recognition current across self-assembled core-satellite gold nanoparticles (GNPs) networks functionalised with amino acids (l-cysteine). The addition of copper ions induces the formation of GNP/l-cysteine/Cu(2+)/l-cysteine/GNP molecular junctions and generates a significant decrease in the resistance through the networks. The networks are ultrasensitive to over ten orders range of copper ion concentrations. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Royal Society of Chemistry |
Relação |
http://dro.deakin.edu.au/eserv/DU:30070981/foroushani-tunnellingcurrent-2015.pdf http://www.dx.doi.org/10.1039/c4cc09451d http://www.ncbi.nlm.nih.gov/pubmed/25585717 |
Direitos |
2015, Royal Society of Chemistry |
Palavras-Chave | #Copper #Cysteine #Gold #Chemistry #Hydrogen Bonding #Limit of Detection #Metal Nanoparticles |
Tipo |
Journal Article |