Thursday, November 09, 2006

US Patent 7132275 - Multisegmented Magnetic Nanowires

Functionalized nanowires are currently being employed for biosensing applications. However, often more than one type of biomolecule is desired to be sensed. This patent from Johns Hopkins proposes using a nanowire formed of different segments which are functionalized independently to bond with different biomolecules so as to form a more versatile detection mechanism. Claim 1 reads:

1. A magnetic nanowire comprising: a plurality of segments, wherein said segments are formed from metal or metal alloys, and wherein at least one of said plurality of segments is magnetic; and functional groups associated with at least one of said segments or ligands associated with at least one of said segments.