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Method For The Preparation Of Very Stable, Self-Assembled Monolayers On The Surface Of Gold Coated Microcantilevers For Application To Chemical Sensing

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
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Methods for the preparation of a stable, self-assembled monolayer on the silicon surface or metallic coating of a microcantilever are disclosed. The methods produce a microcantilever suitable as a chemical sensor. In a microcantilever produced using one version of the method, a metallic coating is disposed on a side of the microcantilever, a bridging atom is bonded to the metallic coating, a first spacer group is bonded to the bridging atom, a second spacer group is bonded to the bridging atom, and a chemical recognition agent is bonded to the first spacer group. In another version of the method, a silicon surface of a microcantilever is hydrogen terminated, and a calixarene chemical recognition agent is carbon linked to the silicon surface using photochemical hydrosilylation. Among other things, the calixarene may be bonded to a crown ether for ion detection or bonded to a area for the recognition of explosives by hydrogen bonding to nitro groups.
Pinnaduwage, Lal A. (Knoxville, TN), Thundat, Thomas G. (Knoxville, TN), Brown, Gilbert M. (Knoxville, TN), Bonnesen, Peter V. (Knoxville, TN), Boiadjiev, Vassil (Philadelphia, PA), Goretzki, Gudron (Nottingham, GB)
11/ 662,696
September 14, 2005
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] This invention was made with United States Government support under Contract No. DE-AC05-00OR22725 between the United States Department of Energy and awarded to U.T. Battelle, LLC. The United States Government has certain rights in this invention.