File(s) under permanent embargo
Tunnelling current recognition through core-satellite gold nanoparticles for ultrasensitive detection of copper ions
journal contribution
posted on 2015-02-18, 00:00 authored by Alireza Foroushani, Yuanchao Zhang, Da Li, M Mathesh, H Wang, F Yan, Colin BarrowColin Barrow, J He, Wenrong YangWenrong YangWe 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.
History
Journal
Chemical CommunicationsVolume
51Issue
14Pagination
2921 - 2924Publisher
Royal Society of ChemistryLocation
Cambridge, Eng.Publisher DOI
eISSN
1364-548XLanguage
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2015, Royal Society of ChemistryUsage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC