Purdue Research Foundation

Michael Wadas

Eric Allen Nauman

George Tsu-Chih Chiu

Nikhil Bajaj

Jeffrey Frederick Rhoads

Allison Kelly Murray

Mackenzie Tweardy

A method of detecting a substance, wherein the method includes functionalizing a plurality of sensors, wherein the functionalizing the plurality of sensors comprises depositing a first material using a piezoelectrically actuated pipette system, wherein the first material includes a polymer, a receptor, and a solvent, wherein the solvent comprises dimethylformamide. The method further includes evaporating a solution of the first material wherein a residue after the evaporation comprises a functionalized chemical. Additionally, the method includes introducing a control material to a first set of sensors of the plurality of sensors using the piezoelectrically actuated pipette system. Further, the method includes introducing a test material to a second set of sensors of the plurality of sensors using the piezoelectrically actuated pipette system, wherein the test material comprises an analyte. Moreover the method includes determining a difference between a first resonant frequency shift in the first set of sensors of the plurality of sensors and a second resonant frequency shift in the second set of sensors of the plurality of sensors.

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West Lafayette, IN, United States of America

Michael Wadas