Related Experiment Video
Updated: Apr 29, 2026
Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
Published on: August 21, 2018
Nucleation and growth synthesis of siloxane gels to form functional, monodisperse, and acoustically programmable
C Wyatt Shields1, Danping Sun, Kennita A Johnson
1Department of Biomedical Engineering, Duke University, Durham, NC (USA); NSF Research Triangle Materials Research Science and Engineering Center (USA).
Abstract:
Nucleation and growth methods offer scalable means of synthesizing colloidal particles with precisely specified size for applications in chemical research, industry, and medicine. These methods have been used to prepare a class of silicone gel particles that display a range of programmable properties and narrow size distributions. The acoustic contrast factor of these particles in water is estimated and can be tuned such that the particles undergo acoustophoresis to either the pressure nodes or antinodes of acoustic standing waves. These particles can be synthesized to display surface functional groups that can be covalently modified for a range of bioanalytical and acoustophoretic sorting applications.
