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Related Experiment Video

Updated: May 24, 2026

An Ultra-clean Multilayer Apparatus for Collecting Size Fractionated Marine Plankton and Suspended Particles
09:01

An Ultra-clean Multilayer Apparatus for Collecting Size Fractionated Marine Plankton and Suspended Particles

Published on: April 19, 2018

Acoustically enriching, large-depth aquatic sampler.

Jonas Jonsson1, Sam Ogden, Linda Johansson

  • 1Ångström Space Technology Centre, Ångström Laboratory, Uppsala University, Uppsala, Sweden. jonas.jonsson@angstrom.uu.se

Lab on a Chip
|March 17, 2012
PubMed
Summary

A compact microfluidic system collects and enriches marine microbial samples using acoustic forces. This miniaturized device, suitable for submersibles, ensures sample integrity with high-pressure valves, enabling deep-sea microbial diversity exploration.

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Area of Science:

  • Marine biology
  • Microfluidics
  • Biotechnology

Background:

  • Collecting marine microbial samples is crucial for understanding underwater biodiversity.
  • Existing methods may not be suitable for miniaturized submersible explorers.
  • A need exists for compact, in-situ sample collection and enrichment systems.

Purpose of the Study:

  • To develop a compact sample enrichment system for microbial collection by miniaturized submersibles.
  • To utilize acoustic radiation forces for gentle, labelless trapping of microorganisms and particles.
  • To ensure sample integrity under high-pressure deep-sea conditions.

Main Methods:

  • A multilayered microfluidic device (30x15xfew mm) with piezoelectric transducers was designed.
  • Acoustic radiation forces were employed for trapping microorganisms and particles.

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Last Updated: May 24, 2026

An Ultra-clean Multilayer Apparatus for Collecting Size Fractionated Marine Plankton and Suspended Particles
09:01

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Published on: April 19, 2018

A Stable Phantom Material for Optical and Acoustic Imaging
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  • High-pressure, paraffin-actuated latchable valves were integrated for sample containment.

    • Main Results:

    • The system successfully trapped fluorescent particles (1.9 μm) and GFP-marked yeast cells.
    • Trapping occurred at flow rates up to 15 μl min⁻¹, corresponding to 18.5 cm s⁻¹ external flow.
    • Valves demonstrated leak-proof performance up to 2.1 MPa for 19 hours and momentary 12.5 MPa.

    Conclusions:

    • The developed microfluidic system is a promising tool for in-situ marine microbial sample collection and enrichment.
    • The system's compact size and high-pressure tolerance make it suitable for deep-sea exploration.
    • Acoustic trapping and robust valve mechanisms ensure gentle sample handling and pristine collection.