Rotational speed measurements of small spherical particles driven by acoustic viscous torques utilizing an optical trap

Two orthogonal standing acoustic waves, generated by piezoelectric excitation, can form a two-dimensional pressure field in microfluidic devices. A phase difference of the excitation waves can be employed to rotate spherical µm-sized silica particles by a torque mediated through the viscous boundary...

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Veröffentlicht in:	Journal of micromechanics and microengineering 2021-03, Vol.31 (3), p.34004
Hauptverfasser:	Lamprecht, Andreas, Goering, Christoph, Schaap, Iwan A T, Dual, Jurg
Format:	Artikel
Sprache:	eng
Schlagworte:	acoustic viscous torque acoustofluidic microfluidics optical tweezers rotation measurement
Online-Zugang:	Volltext
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