Continuous sorting of Brownian particles using coupled photophoresis and asymmetric potential cycling.
Feasible sorters need to function rapidly and permit the input and delivery of particles continuously. Here, we describe a scheme that incorporates (i) restricted spatial input location and (ii) orthogonal sort and movement direction features. Sorting is achieved using an asymmetric potential that is cycled on and off, whereas movement is accomplished using photophoresis. Simulations with 0.2 and 0.5 microm diameter spherical particles indicate that sorting can commence quickly from a continuous stream. Procedures to optimize the sorting scheme are also described.
Ng
Tuck Wah
TW
Department of Mechanical Engineering, Monash University, Clayton, Victoria 3800, Australia. engngtw@gmail.com
Neild
Adrian
A
Heeraman
Pascal
P