Handheld ultrasonic cell disruptor is a commonly used experimental equipment in biology and chemistry experiments, mainly used for cell lysis, dissolution, and extraction of intracellular components. Through the energy of ultrasound, the cell membrane is rapidly broken, releasing substances inside the cell. Due to its portability, simple operation, and wide applicability, especially suitable for small-scale experiments and on-site use, it has become a common tool in life science research.

1、 Working principle

　　Handheld ultrasonic cell disruptorThe working principle is based on the mechanical vibration effect of ultrasonic waves. Ultrasonic waves propagate through the probe into the liquid medium, forming high-frequency vibrations. When these vibrations act on cells in the liquid, they produce two main effects:

1. Cavitation effect

The cavitation effect is the core principle of ultrasonic disruption of cells. When ultrasound is transmitted into a liquid, the local liquid pressure undergoes periodic changes. The low-pressure section will form bubbles and rapidly collapse in the subsequent high-pressure section. The enormous energy generated when bubbles collapse can create local high temperatures and pressures, leading to the rupture of cell walls or membranes in the liquid.

2. Shear force effect

The high-frequency vibration generated by ultrasonic vibration can cause friction between liquid molecules and cells, resulting in shear forces. This shear force can effectively damage the cell membrane, leading to the release of cellular contents. The probe emits high-frequency sound waves to concentrate this energy in the sample, thereby achieving cell fragmentation. The degree of fragmentation can be controlled by adjusting the power, time, and pulse frequency of the ultrasonic waves.

2、 Application scope

1. Cell lysis and protein extraction

Ultrasonic cell disruptors are widely used for cell lysis and protein extraction. In biological research, extracting proteins, DNA, RNA and other molecules from cells is a common operation. Through the efficient energy of ultrasound, cell membranes or walls can be quickly broken, releasing proteins or other molecules inside the cell while avoiding molecular degradation caused by high temperatures or chemical reagents.

2. Emulsification and dispersion

Not only can it be used for cell lysis, but it is also widely used for emulsification and dispersion of liquids. It can evenly disperse insoluble substances in liquids in solvents and is commonly used in fields such as pharmaceuticals and cosmetics. For example, in the emulsification process, ultrasound can disperse oil and water into tiny droplets to form a stable lotion, which is often used in the manufacture of drugs, vaccines and other preparations.

3. Synthesis of Nanomaterials

In the field of nanotechnology, it can be used to prepare nanoparticles or nanomaterials. Through the intense vibration and cavitation effect of ultrasound, raw materials can be decomposed into tiny particles to prepare nanomaterials with special properties. These nanoparticles have a wide range of applications in drug delivery, antibacterial, and other fields.

4. DNA/RNA extraction

The extraction of DNA and RNA is a common experimental process in molecular biology. By using it, it is possible to efficiently break down the cell membrane, release nucleic acids from the cell, and reduce physical damage to nucleic acids. During RNA extraction, ultrasonic disruption can also reduce the risk of RNA degradation, thereby improving extraction efficiency.

Handheld ultrasonic cell disruptors have become an important tool in life science research due to their high efficiency and convenience. It plays an important role in cell lysis, protein extraction, nanotechnology, drug development, and other fields. With the continuous advancement of technology, it will develop towards a more efficient, precise, and environmentally friendly direction, providing more reliable technical support for scientific research.