Research On Particles Drove By Electromagnetic Wave In Micro-fluidic System

In microfluidic systems, research particle movement mechanism is a hot home and abroad. Especially outside the field, such as electromagnetic wave environment,how they are driven particles it is particularly important. In the micro-nano-scale particles in the microchannel in the direction of the channel is near equilibrium, the other direction are the equilibrium. By breaking the equilibrium state of the particle,so that under the influence of mechanized do directional transport of non-equilibrium statistical mechanics of particles subject line. In numerous studies, the impact of particles, especially micro and nano-scale transport of Brownian particles plenty of Structure Entropy Potential; some use of electrostatic field force to control the particle,such as dielectrophoresis method of manipulating yeast cells; some use light mechanics effects, such as optical tweezers or optical traps formed by Gaussian white noise, light intensity gradient force generated particles can be effectively controlled.However, in the above study, most of the research is the system as a given ecosystem, using Runge-Kutta method or methods such as Monte Carlo, by removing the time dimension and other dimensions of space, the Langevin equation or blessing Keef Planck equation is simplified one-dimensional first-order or second-order differential equation to deal with. Few scholars time-varying external field force introduced into the system.In this paper, the time-varying electromagnetic field introduced microfluidic systems and to study the changes of particle motion mechanism and transport properties of the resulting. The amplitude and frequency of the external field, and the rotation of the two-particle coupling obstruction ratchet Brown produced a detailed numerical calculation and analysis. To some extent, some of the relevant research to fill the gaps at home and abroad. In addition, the authors also use finite elementcoupled multi-physics simulation software COMSOL Multiphysics simulation of an active micro-electrode patch of turbulence micro mixer and passive splitter. The above findings and theoretical models proposed to provide design ideas and principles of analytical methods for the microfluidic system drive mode particles. Hoping to biomedical chip, designated the administration and other microfluidic research in related fields help.