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Related Experiment Video

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Acoustic Bioprinting: Liquid-Bridge-Based Efficient Single-Cell Encapsulation Using Gigahertz Bulk Acoustic Waves.

Yangchao Zhou1,2, Meihang He2, Xuexin Duan2

  • 1School of Aeronautical Engineering, Taizhou University, Taizhou 318000, Zhejiang, China.

Analytical Chemistry
|March 2, 2026
PubMed
Summary

This study introduces an acoustic bioprinting method for highly efficient single cell encapsulation. The novel liquid bridge transfer achieves nearly 100% efficiency and improved resolution for biological applications.

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Area of Science:

  • Biotechnology
  • Bioengineering
  • Cell Biology

Background:

  • Current single cell encapsulation methods face limitations in spatial resolution, operational complexity, and biocompatibility.
  • Low encapsulation efficiency leads to significant biological sample waste.

Purpose of the Study:

  • To develop an acoustic-based bioprinting method for enhanced single cell encapsulation.
  • To overcome the limitations of existing cell encapsulation techniques.

Main Methods:

  • Utilized an acoustic-based bioprinting approach with a liquid bridge for cell transfer.
  • Integrated an optical feedback system for precise control.
  • Leveraged ultrahigh resonant frequency and a small device footprint.

Main Results:

  • Achieved nearly 100% single cell encapsulation efficiency.
  • Improved encapsulation resolution to below 100 μm.
  • Demonstrated combined encapsulation of single cells and particles.

Conclusions:

  • The proposed liquid-bridge bioprinting technology offers high efficiency and resolution for single cell encapsulation.
  • The method shows versatility for various micro-objects and good biocompatibility.
  • Potential applications include cell assembly, chemical analysis, and biofabrication.