Abstract:
:Optical spectroscopy of a single gold nanoparticle, functionalized with an aptamer, is used to sense the specific binding of avidin. Herewith, the field of single noble metal nanoparticle biosensors is extended to the important field of aptamer based assays. The sensitivity of this initial, but not yet optimized apta-nano-sensor is in the range of 20 nM. Due to its nanoscopic size, this single nanoparticle based apta-sensor may be used in nanoscopic volumes such as in array type assays or even inside cells.
journal_name
J Biophotonicsjournal_title
Journal of biophotonicsauthors
Hernandez FJ,Dondapati SK,Ozalp VC,Pinto A,O'Sullivan CK,Klar TA,Katakis Idoi
10.1002/jbio.200910006subject
Has Abstractpub_date
2009-04-01 00:00:00pages
227-31issue
4eissn
1864-063Xissn
1864-0648journal_volume
2pub_type
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