Chladni Figures Revised Based on Nanomechanics

M. Dorrestijn, National Center of Competence in Research on Nanoscale Science, University of Basel, IBM Research, Zurich Research Laboratory
A. Bietsch, National Center of Compentence in Research on Nanoscale Science, University of Basel and IBM Research, Zurich Research Laboratory
T. Açikalin, Birck Nanotechnology Center, School of Mechanical Engineering, Purdue University
Arvind Raman, Birck Nanotechnology Center, School of Materials Engineering, Purdue University
M. Hegner, National Center of Compentence in Research on Nanoscale Science, University of Basel
E. Meyer, National Center of Competence in Research on Nanoscale Science, University of Basel
Ch. Gerber, National Center of Competence in Research on Nanoscale Science, University of Basel

Abstract

Chladni patterns based on nanomechanics in the microfluidic environment are presented. In contrast with the macroscopic observations in the gaseous environment, nanoparticles are found to move to the nodes, whereas micron-sized particles move to the antinodes of the vibrating interface. This opens the door to size-based sorting of particles in microfluidic systems, and to highly parallel and controlled assembly of biosensors and nanoelectronic circuits.