Utilization of Self-Excited Oscillation for Mass Sensing in Liquid

Abstract eng:
The ultrasensitive mass detection in viscosity regime is investigated which is based on the relative change of the amplitude ratio in using self-excited coupled microcantilevers, depending on the mass to be measured. The velocity feedback to produce selfexcited oscillation to the microcantilevers compensates the influence of the viscous damping effect in measurement environment and enables the detection of a very small mass with nano-gram order in the viscosity regime. It is expected by the proposed method to perform high-accuracy quantitative measurements of biological samples such as human cells and DNA in liquid environments, where they are active. In this presentation, we will show the design of coupled microcantilevers and the measurement result for the mass in liquid.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket