Cantilever Based Optical Interfacial Force Microscope

Jeremy R. Bonander, Boise State University
Byung I. Kim, Boise State University

Article comments

This document was originally published by the American Institute of Physics in Applied Physics Letters at http://scitation.aip.org/dbt/dbt.jsp?KEY=APPLAB. Copyright restrictions may apply.

Abstract

We developed a cantilever based optical interfacial force microscopy (COIFM) that employs a microactuated silicon cantilever and optical detection method to establish the measurement of the single molecular interactions using the force feedback technique. Through the direct measurement of the COIFM force-distance curves, we have demonstrated that the COIFM is capable of unveiling structural and mechanical information on interfacial water at the single molecular level over all distances between two hydrophilic surfaces.