Abstract: Technologies for acoustoelectronic manipulation of micro/nano particles include a system having a piezoelectric substrate coupled to one or more acoustic transducers and a fluid layer positioned above the substrate. Micro/nano particles are introduced to the fluid, which can be in the form of a droplet or in a confined channel, and a signal is applied to the acoustic transducer. One or more parameters of the signal are varied after introducing the micro/nano particles into the fluid. The parameters may include amplitude, frequency, or phase of the signal. The system may include one or more acoustic transducers. Multiple signals may be applied to the acoustic transducers. Wave superposition of acoustic waves in the substrate manipulates micro/nano particles in the fluid. The nanoparticles may include carbon nanotubes, nanowires, nanofibers, graphene flakes, quantum dots, SERS probes, exosomes, vesicles, DNA, RNA, antibodies, antigens, macromolecules, or proteins.

Abstract: Acoustofluidic systems including acoustic wave generators for manipulating fluids, droplets, and micro/nano objects within a fluid suspension and related methods are disclosed herein. According to an aspect, an acoustofluidic system includes a substrate including a substrate surface. The system also includes an acoustic wave generator configured to generate acoustic streaming within an acoustic wave region of the substrate surface. Further, the acoustic wave generator is controllable to change the acoustic streaming for movement of a droplet or other micro/nano object on a fluid suspension about the acoustic wave region.

Abstract: Acoustofluidic systems including acoustic wave generators for manipulating fluids, droplets, and micro/nano objects within a fluid suspension and related methods are disclosed herein. According to an aspect, an acoustofluidic system includes a substrate including a substrate surface. The system also includes an acoustic wave generator configured to generate acoustic streaming within an acoustic wave region of the substrate surface. Further, the acoustic wave generator is controllable to change the acoustic streaming for movement of a droplet or other micro/nano object on a fluid suspension about the acoustic wave region.