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Related Experiment Video

Updated: May 4, 2026

Aseptic Laboratory Techniques: Plating Methods

Aseptic Laboratory Techniques: Plating Methods

Published on: May 11, 2012

A digital plating platform for robust and versatile microbial detection and analysis.

Tianbao Hu¹, Xue Han^1,2, Lei Wu³

¹Key Laboratory of Optoelectronic Technology and Systems, Defense Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, Ministry of Education, Chongqing University, Chongqing, 400044, China.

Scientific Reports

|July 13, 2025

Summary

A new digital plating platform rapidly isolates, quantifies, and characterizes microorganisms, overcoming limitations of traditional culturing. This technology offers faster results and broader applications in microbiology research and diagnostics.

Keywords:

Antibiotic susceptibility testing Digital plating Identification Isolation Microbial interaction Recovery

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Last Updated: May 4, 2026

Aseptic Laboratory Techniques: Plating Methods

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Published on: May 11, 2012

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Published on: February 23, 2020

Area of Science:

Microbiology
Bioassay Technology
Microfluidics

Background:

Traditional plate culturing is the standard but suffers from being labor-intensive, time-consuming, and lacking single-cell resolution.
Existing methods present significant challenges for efficient microbial analysis in various settings.

Purpose of the Study:

To introduce a novel digital plating (DP) platform that integrates traditional culturing with digital bioassay technology.
To enable rapid isolation, quantification, and phenotypic characterization of microorganisms with enhanced efficiency and resolution.

Main Methods:

Development of a DP platform utilizing a high-density picoliter microwell array chip with a replaceable agar sheet.
Partitioning bacterial suspension into microwells via a self-pumping mechanism and incubating with customizable agar covers.
Leveraging digital quantification and agar-based workflows for microbial analysis.

Main Results:

The DP platform achieves precise bacterial quantification within hours (e.g., 6-7 hours for E. coli vs. 16-24 hours traditionally).
Demonstrated versatility includes single-cell isolation from mixed communities, selective enrichment, rapid antibiotic susceptibility testing (<6 hours), and microbial interaction assessment.
The platform provides a scalable and cost-effective solution compared to conventional methods.

Conclusions:

The digital plating platform significantly accelerates microbial analysis, offering a faster and more versatile alternative to traditional plate culturing.
This technology bridges high-throughput microfluidics with practical laboratory routines, enhancing applications in clinical diagnostics, environmental microbiology, and synthetic biology.