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Non-Invasive Three-Dimensional Cell Manipulation Technology Based on Acoustic Microfluidic Chips.

Lin Lin1,2, Yiming Zhen1,2, Wang Li1,2

  • 1School of Mechanical Engineering, Guangxi University, Nanning 530004, China.

Micromachines
|September 27, 2025
PubMed
Summary

This study introduces a non-invasive 3D cell manipulation method using acoustic microfluidic chips. The technique precisely rotates cells in multiple dimensions with high viability, offering potential for biomedical research.

Keywords:
acoustic microfluidic chipsbiological activitythree-dimensional manipulationvibration modes

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Area of Science:

  • Biomedical Engineering
  • Microfluidics
  • Acoustic Manipulation

Background:

  • Precise manipulation of cells is crucial for various biomedical applications.
  • Existing cell manipulation techniques can be invasive or lack multi-dimensional control.

Purpose of the Study:

  • To develop a non-invasive 3D cell manipulation technique using acoustic microfluidic chips.
  • To achieve precise multi-dimensional rotational manipulation of cells.
  • To evaluate the efficiency and biocompatibility of the developed method.

Main Methods:

  • Utilized acoustic microfluidic chips with vibrating micropillars to generate acoustic flow fields.
  • Investigated different vibration modes (linear, quasi-circular, elliptical, higher-order) to study acoustic flow field characteristics.
  • Optimized rotational manipulation of microbeads and cancer cells by adjusting frequency and voltage.

Main Results:

  • Achieved precise in-plane and out-of-plane rotation of cancer cells.
  • Elliptical vibration mode (44.9 kHz, 60 Vpp) yielded the highest rotational speed for particles and cells.
  • Demonstrated high cell viability (94%) post-manipulation, indicating a gentle and biocompatible method.

Conclusions:

  • The acoustic microfluidic chip technique offers an efficient, precise, and gentle approach for 3D cell manipulation.
  • This method shows significant potential for advancing biomedical research and clinical applications.
  • The non-invasive nature and high cell viability make it suitable for sensitive biological studies.