Low power laser induced microfluidic mixing through localized surface plasmon.
we present a new optical microfluidic mixing approach via surface tension driven force sustained by the localized surface plasmon (LSP) energy. The phonon energy associated with the non-radiative damping of LSP on an Au nanostructure creates thermal gradients capable of actuating a convective fluid flow. Experimental evidence and modeling results both show that LSP from the Au nanostructure is crucial to establish a temperature gradient with sufficient magnitude to induce the convective flow when using a low-power laser source.
Miao
Xiaoyu
X
Electrical Engineering Department, University of Washington, Seattle, WA 98195, USA. xiaoyu@ee.washington.edu
Wilson
Ben
B
Lin
Lih Y
LY
D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D046210:Microfluidic Analytical Techniques / Q000295:instrumentation* / Q000379:methods; D008962:Models, Theoretical; D009391:Nephelometry and Turbidimetry / Q000295:instrumentation* / Q000379:methods; D013048:Specimen Handling / Q000295:instrumentation* / Q000379:methods; D020349:Surface Plasmon Resonance / Q000295:instrumentation* / Q000379:methods*