Tu-MLO-01 - Electrohydrodynamic oscillatory deformation of viscoelastic droplets as an interfacial microrheometer

Event

EUROSENSORS 2026
2026-09-06 - 2026-09-09
Zurich

Band

Poster

Chapter

Microfluidic Devices, Lab on a Chip, µTAS, Organ on Chip Systems

Author(s)

C. K. Parashar, O. S. Deshmukh, D. Bandyopadhyay - Indian Institute of Technology Guwahati,Guwahati (India)

Pages

499 - 500

DOI

10.5162/eurosensors2026/Tu-MLO-01

ISBN

978-3-910600-12-6

Price

free

Abstract

A water-based polymer droplet suspended in silicone oil is driven by an AC electric field and used as a non-contact rheological sensor. The work links interfacial Maxwell stress, transient droplet deformation and oscillatory relaxation to viscosity, interfacial tension and elasticity. A perfect-conductor approximation is justified within the experimental range frequency, enabling a compact electromechanical description. The resulting electrohydrodynamic response provides a compact route for classifying liquid-like and solid-like behaviour as well as measure of interfacial tension during relaxation behavior at small volume.