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Microfluidic Picoliter Bioreactor for Microbial Single-cell Analysis: Fabrication, System Setup, and Operation
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A Microfluidic Prototype System towards Microalgae Cell Separation, Treatment and Viability Characterization.

Yanjuan Wang1,2,3, Junsheng Wang1,2,4, Chen Zhou1,2

  • 1Center of Microfluidic and Optoelectronic Sensing, Dalian Maritime University, Dalian 116026, China.

Sensors (Basel, Switzerland)
|November 27, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces a novel microfluidic system for rapid microalgae analysis. The device efficiently separates, treats, and characterizes microalgae viability using deterministic lateral displacement and fluorescence detection.

Keywords:
chlorophyll fluorescenceconcentration gradient generatordeterministic lateral displacementmicrofluidic chipsingle photon detection

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Area of Science:

  • Marine Biology
  • Biotechnology
  • Analytical Chemistry

Background:

  • Microalgae are abundant in oceans with diverse applications in food, medicine, energy, and feed.
  • Efficient identification and separation of microalgae are crucial for their research and utilization.
  • Current methods for microalgae analysis can be time-consuming and lack integrated functionality.

Purpose of the Study:

  • To develop an integrated microfluidic system for rapid microalgae cell separation, treatment, and viability characterization.
  • To demonstrate the effectiveness of deterministic lateral displacement (DLD) for size-based microalgae separation.
  • To enable automated chemical treatment optimization and real-time viability assessment.

Main Methods:

  • Microfluidic system design incorporating deterministic lateral displacement (DLD) for size-based separation.
  • Integration of a concentration gradient generator for automated chemical reagent optimization.
  • Utilizing a single photon counter to measure laser-induced chlorophyll fluorescence for viability assessment.

Main Results:

  • Successful rapid separation of different microalgae species based on size using DLD.
  • Automated generation of chemical reagent gradients for optimized sample treatment.
  • Accurate microalgae viability characterization through chlorophyll fluorescence detection.

Conclusions:

  • The developed microfluidic system is the first laboratory prototype to combine DLD separation, gradient generation, and fluorescence detection for microalgae analysis.
  • This technology offers a novel approach for fast analysis and treatment of microalgae from marine samples.
  • Potential applications include microalgae resource utilization, marine ecological protection, and ballast water management.