Colorimetric Response of Peptide‐Functionalized Gold Nanoparticles to Metal Ions | Zendy

Slocik Joseph M. | Zendy; Zabinski Jeffrey S. | Zendy; Phillips David M. | Zendy; Naik Rajesh R. | Zendy

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Colorimetric Response of Peptide‐Functionalized Gold Nanoparticles to Metal Ions

Author(s) -

Slocik Joseph M.,

Zabinski Jeffrey S.,

Phillips David M.,

Naik Rajesh R.

Publication year - 2008

Publication title -

small

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.785

H-Index - 236

eISSN - 1613-6829

pISSN - 1613-6810

DOI - 10.1002/smll.200700920

Subject(s) - metal ions in aqueous solution , detection limit , metal , nanoparticle , colloidal gold , peptide , colorimetry , ion , materials science , nanotechnology , ligand (biochemistry) , combinatorial chemistry , chemistry , chromatography , organic chemistry , biochemistry , receptor , metallurgy

Nano‐metal detectors! A rapid colorimetric response and detection limit in the nanomolar concentration range is achieved by a colorimetric sensor for metal ions. The sensor is made of gold nanoparticles functionalized with a simple peptide ligand (PFNs). The interaction of the PFNs with metal ions results in a distinct colorimetric response that is driven by nanoparticles aggregation (see figure).

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