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Updated: May 12, 2026

Lensless On-chip Imaging of Cells Provides a New Tool for High-throughput Cell-Biology and Medical Diagnostics

Lensless On-chip Imaging of Cells Provides a New Tool for High-throughput Cell-Biology and Medical Diagnostics

Published on: December 14, 2009

On-chip biomedical imaging.

Zoltán Göröcs¹, Aydogan Ozcan

¹Electrical Engineering Department, University of California, Los Angeles, CA 90095, USA.

IEEE Reviews in Biomedical Engineering

|April 6, 2013

Summary

This summary is machine-generated.

Lab-on-a-chip (LOC) systems offer compact biomedical tools but still need microscopes. Emerging on-chip imaging techniques like lens-free microscopy could replace conventional microscopes for LOC applications.

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Last Updated: May 12, 2026

Lensless On-chip Imaging of Cells Provides a New Tool for High-throughput Cell-Biology and Medical Diagnostics

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Published on: December 14, 2009

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Area of Science:

Biomedical Engineering
Optical Imaging
Microfluidics

Background:

Lab-on-a-chip (LOC) systems integrate multiple laboratory functions onto a microchip.
Current LOC devices rely on external conventional microscopes for imaging.
There is a need for integrated, cost-effective imaging solutions for LOC applications.

Purpose of the Study:

To review emerging on-chip optical imaging techniques for lab-on-a-chip systems.
To assess the potential of these techniques to replace conventional microscopy.
To highlight advancements in integrated biomedical imaging.

Main Methods:

Review of recently published literature on on-chip optical imaging modalities.
Analysis of techniques including contact shadow imaging, lens-free holographic microscopy, fluorescent on-chip microscopy, and lens-free optical tomography.
Critical evaluation of the capabilities and limitations of each technique.

Main Results:

Several on-chip imaging techniques show promise for replacing conventional microscopes.
Lens-free holographic microscopy and contact shadow imaging offer label-free imaging capabilities.
Fluorescent on-chip microscopy enables sensitive detection within LOC devices.
Lens-free optical tomography provides 3D imaging capabilities on-chip.

Conclusions:

Emerging on-chip imaging modalities are poised to enhance the functionality of lab-on-a-chip systems.
These integrated techniques offer potential for cost-effective, portable, and high-throughput biomedical research and diagnostics.
Further development is needed to fully realize the potential of these advanced imaging solutions.