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Related Experiment Video

Updated: Apr 14, 2026

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays

Published on: September 30, 2007

Hybrid optofluidic integration.

Joshua W Parks¹, Hong Cai, Lynnell Zempoaltecatl

¹School of Engineering, University of CA Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA. hschmidt@soe.ucsc.edu.

|August 24, 2013

Summary

This summary is machine-generated.

This study integrates microfluidic sample preparation with optical detection on a single optofluidic chip. The device enables amplification-free, single-molecule detection of nucleic acids, advancing lab-on-chip technology.

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Last Updated: Apr 14, 2026

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays

Published on: September 30, 2007

Multicolor Fluorescence Detection for Droplet Microfluidics Using Optical Fibers

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Published on: March 13, 2017

Area of Science:

Optofluidics
Biotechnology
Nanotechnology

Background:

Lab-on-chip devices aim to integrate microfluidic and optical functions.
Current systems face challenges in achieving seamless integration and high-pressure compatibility.

Purpose of the Study:

To demonstrate a hybrid optofluidic system integrating PDMS microfluidics with silicon-based optical detection.
To achieve on-chip sample preparation and single-molecule detection.

Main Methods:

Hybrid integration of a polydimethylsiloxane (PDMS) fluidic layer with a silicon-based liquid-core antiresonant reflecting optical waveguide (ARROW) chip.
Incorporation of particle mixing, distribution, and filtering functionalities.
Demonstration of fluorescent labeling and flow-based single-molecule detection of lambda-DNA (λ-DNA).

Main Results:

Successful integration of microfluidic sample preparation with optical detection in a single optofluidic system.
The device sustained high pressures and enabled reconfigurable configurations.
Demonstrated amplification-free, single-molecule detection of λ-DNA on-chip.

Conclusions:

The developed optofluidic system offers a platform for low-complexity biological sample preparation and sensitive detection.
This technology paves the way for amplification-free nucleic acid detection in point-of-care diagnostics.