Optofluidics incorporating actively controlled micro- and nano-particles

Abstract

The advent of optofluidic systems incorporating suspended particles has resulted in the emergence of novel applications. Such systems operate based on the fact that suspended particles can be manipulated using well-appointed active forces, and their motions, locations and local concentrations can be controlled. These forces can be exerted on both individual and clusters of particles. Having the capability to manipulate suspended particles gives users the ability for tuning the physical and, to some extent, the chemical properties of the suspension media, which addresses the needs of various advanced optofluidic systems. Additionally, the incorporation of particles results in the realization of novel optofluidic solutions used for creating optical components and sensing platforms. In this review, we present different types of active forces that are used for particle manipulations and the resulting optofluidic systems incorporating them. These systems include optical components, optofluidic detection and analysis platforms, plasmonics and Raman systems, thermal and energy related systems, and platforms specifically incorporating biological particles. We conclude the review with a discussion of future perspectives, which are expected to further advance this rapidly growing field.

Particle manipulations in non-Newtonian microfluidics: A review

“…Compared to the active manipulation of particles via an externally imposed force field (e.g., acoustic [17], electric [18], magnetic [19] or optical [20]), the passive manipulation exploits the flowinduced intrinsic lift and/or drag force to control particle motion with several advantages such as simplicity and autonomy [21]. Along this direction, inertial microfluidics has attracted tremendous attention since the pioneering study of Di Carlo et al [22] due to its capability to handle a large volume of samples at a high throughput [23,24].…”

Optofluidics and modern technology development

“…ไบโอเซนเซอร์ (biosensor) (Liu et al, 2012) การทํ าเลนส์ ในระดั บไมโครและนาโนเมตร (micro-nano lens) (Kayani et al, 2012 …”

Continuous sheath-free magnetic separation of particles in a U-shaped microchannel

“…A variety of force fields have been demonstrated to implement particle separation in microfluidic devices, among which electric, 1,2 magnetic, 3,4 acoustic, 5,6 and optical 7,8 forces are the most often used. [9][10][11][12] While each of these methods has its own merit, magnetic field-induced particle manipulation is potentially the simplest and cheapest.…”