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Related Concept Videos

Methods to Assess Microbial Populations01:30

Methods to Assess Microbial Populations

Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a visible...

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Related Experiment Video

Updated: May 7, 2026

An Ultrahigh-throughput Microfluidic Platform for Single-cell Genome Sequencing
10:00

An Ultrahigh-throughput Microfluidic Platform for Single-cell Genome Sequencing

Published on: May 23, 2018

Optofluidic cell selection from complex microbial communities for single-genome analysis.

Zachary C Landry1, Stephen J Giovanonni, Stephen R Quake

  • 1Department of Microbiology, Oregon State University, Corvallis, Oregon, USA.

Methods in Enzymology
|September 25, 2013
PubMed
Summary
This summary is machine-generated.

Optical trapping in microfluidic devices enables precise isolation of single cells for genetic analysis. This method enhances the study of diverse microbial populations and rare cell types.

Keywords:
ContaminationLab-on-a-chipLaserMicrofluidic deviceMultiple displacement amplificationNanoliterOptical tweezerSingle amplified genomeSingle-cell sequencingWhole-genome amplification

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Area of Science:

  • Genomics
  • Microbiology
  • Biotechnology

Background:

  • Single-cell analysis is revolutionizing life sciences by revealing cellular heterogeneity.
  • Traditional methods struggle with isolating individual cells from diverse populations, especially microbes.
  • Resolving genetic and phenotypic variations between single cells is crucial.

Purpose of the Study:

  • To develop and demonstrate instrumentation for optical trapping within microfluidic devices.
  • To enable the selection of individual cells for downstream genomic analysis.
  • To overcome limitations in analyzing rare, morphologically diverse, or low-quantity cell samples.

Main Methods:

  • Construction and utilization of specialized microfluidic devices.
  • Integration of optical trapping technology for precise cell manipulation.
  • Application of methods such as nucleic acid sequencing for subsequent analysis.

Main Results:

  • Successful isolation of individual cells from heterogeneous populations using optical trapping.
  • Demonstration of the system's utility for microbial populations with high diversity.
  • Validation of the approach for rare cells, irregular morphologies, and small samples.

Conclusions:

  • Optical trapping within microfluidic devices is an effective tool for single-cell isolation.
  • This technology significantly advances the capabilities of single-cell genomic analysis.
  • The method offers unique advantages for studying complex and rare biological samples.