Work

Nanodisk Codes

Year: 2007

Type: article

Abstract: We report a new encoding system based upon dispersible arrays of nanodisks prepared by on-wire lithography and functionalized with Raman active chromophores. These nanodisk arrays are encoded both physically (in a "barcode" pattern) and spectroscopically (Raman) along the array. These structures can be used in covert encoding strategies because of their small size or as biological labels with readout by scanning confocal Raman spectroscopy. As proof-of-concept, we demonstrate their utility in DNA detection in a multiplexed format at target concentrations as low as 100 fM.

Source: Nano Letters

DOI: 10.1021/nl072606s

Authors: Lidong Qin, Matthew J. Banholzer, Jill E. Millstone, Chad A. Mirkin

Institutions: Northwestern University, International Institute for Nanotechnology

Language: Danish

Topic: Gold and Silver Nanoparticles Synthesis and Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: National Institutes of Health

Award: G9000165630