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Electrochemical Systems

Electrochemical Systems

Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution, the Zn metal, composed...

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Updated: May 18, 2026

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays

Published on: October 1, 2007

Electro-optofluidics: achieving dynamic control on-chip.

Mohammad Soltani¹, James T Inman, Michal Lipson

¹Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, New York 14853, USA.

|October 6, 2012

Summary

This summary is machine-generated.

This study introduces a novel electro-optofluidic platform for dynamic control of photonic devices in aqueous environments. It enables high-throughput optofluidic applications with precise tuning and reconfiguration capabilities.

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Last Updated: May 18, 2026

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Area of Science:

Optofluidics
Photonics
Nanotechnology

Background:

Dynamic tuning of photonic devices is crucial for integrated optofluidics.
Electronic control methods are difficult to implement in aqueous environments.

Purpose of the Study:

To develop a novel electro-optofluidic platform for precise control of photonic devices.
To overcome the limitations of electronic control in aqueous optofluidics.

Main Methods:

Utilized electro-optical phase tuning generated by an on-chip electric microheater.
Employed the thermo-optic effect for phase tuning.
Transmitted tuning signals via optical waveguides to the optofluidic device.
Demonstrated dynamic optical trapping of nanoparticles using an optofluidic resonator.

Main Results:

Developed a compact, high-speed (>18 kHz), low-power (~mW) microheater for precise phase tuning.
Successfully demonstrated dynamic optical trapping control of nanoparticles.
Achieved switching, tuning, and reconfiguration capabilities in optofluidic devices.

Conclusions:

The novel electro-optofluidic platform offers dynamic control and precise tuning for optofluidic devices.
This platform enables high-throughput optofluidic applications.
Paves the way for new directions in optofluidics, particularly in aqueous environments.