期刊
JOURNAL OF BIOPHOTONICS
卷 2, 期 4, 页码 227-231出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jbio.200910006
关键词
apatamer; gold nanoparticles; biosensing
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.
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