title: Metal nanoparticle wires formed by an integrated nanomolding-chemical assembly process: fabrication and properties.
abstract: We report here the use of nanomolding in capillaries (NAMIC) coupled with dithiocarbamate (DTC) chemistry to fabricate sub-50 nm quasi-1D arrays of 3.5 nm core gold nanoparticles (Au NPs) over large areas. Owing to chemical immobilization via the DTC bond, the patterned NP systems are stable in water and organic solvents, thus allowing the surface modification of the patterned Au NP arrays through thiol chemistry and further orthogonal binding of proteins. The electrical properties of these patterned Au NP wires have also been studied. Our results show that NAMIC combined with surface chemistry is a simple but powerful tool to create metal NP arrays that can potentially be applied to fabricate nanoelectronic or biosensing devices.
authors.affiliation: Molecular Nanofabrication Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
authors.forename: Xuexin
authors.initials: X
authors.lastname: Duan
authors.forename: Myoung-Hwan
authors.initials: MH
authors.lastname: Park
authors.forename: Yiping
authors.initials: Y
authors.lastname: Zhao
authors.forename: Erwin
authors.initials: E
authors.lastname: Berenschot
authors.forename: Zheyao
authors.initials: Z
authors.lastname: Wang
authors.forename: David N
authors.initials: DN
authors.lastname: Reinhoudt
authors.forename: Vincent M
authors.initials: VM
authors.lastname: Rotello
authors.forename: Jurriaan
authors.initials: J
authors.lastname: Huskens
mesh_terms: D000818:Animals; D015374:Biosensing Techniques; D002417:Cattle; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D036103:Nanotechnology / Q000379:methods*; D011092:Polyethylene Glycols / Q000737:chemistry; D012710:Serum Albumin, Bovine / Q000737:chemistry
chemical_list: D012710:Serum Albumin, Bovine; D011092:Polyethylene Glycols; D006046:Gold