A revolutionary technique called Hypersonic Levitation and Spinning (HLS) is transforming how scientists isolate and study individual cells—especially cancer cells. Developed by researchers at Tianjin University, this method uses acoustic waves and MEMS (micro-electromechanical systems) to gently separate cells from tissue without damaging them, offering new hope for cancer research and other biomedical fields.
🔬 What Is Hypersonic Levitation and Spinning?
Traditional cell isolation methods often involve mechanical cutting or enzymatic digestion, which can harm fragile cells and distort their properties. HLS changes the game by using ultrasound-driven liquid jets to peel single cells away from tissue in a contact-free process.
- A metal probe emits billions of vibrations per second into a water-enzyme mixture surrounding human tissue.
- These vibrations generate acoustic waves, which form liquid jets that isolate cells gently.
- Once separated, cells are levitated and spun in fluid, allowing researchers to view them from every angle using advanced microscopy.
This technique enables rapid and minimally invasive isolation, preserving cell integrity for high-resolution analysis.
🧪 Why It Matters for Cancer and Beyond
Most cancer deaths are caused by metastasis, where a few aggressive cells spread and form new tumors. Understanding these rare cells is critical—but isolating them without damage has been a major challenge.
HLS offers a solution:
- Isolates 90% of cells in just 15 minutes, compared to 70% in an hour using conventional methods.
- Preserves delicate cell structures, making it ideal for single-cell sequencing and biochemical profiling.
- Applicable to fields like immunology, neuroscience, stem cell biology, and infectious disease.
Dr. Xuexin Duan, who led the development, described HLS as a “gentle, invisible hand” that operates within fluid, not directly on the cell—minimizing stress and preserving function.
⚙️ How It Works
The system uses three MEMS-based resonators to vibrate tissue in a water-enzyme solution. A signal at 2.49 GHz triggers a printed circuit board to send high-frequency voltage, activating an inverse piezoelectric effect. This creates acoustic waves that:
- Flow and spin the fluid
- Generate liquid jets to isolate cells
- Suspend and rotate cells for full-angle imaging
The result is a non-destructive, high-speed method for isolating rare cells.
🚧 Challenges and Commercialization
While promising, HLS faces hurdles:
- High-frequency sensitivity: Some cells may react to acoustic fields.
- Lab reliability: MEMS devices in fluid can drift or require calibration.
- Cost and accessibility: Commercialization will be key to widespread adoption.
To address these, the team launched Convergency Biotech, aiming to build user-friendly HLS workstations for labs worldwide.
📚 Source
This article is based on the original report by IEEE Spectrum, published October 31, 2025.
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