Ultrasonic cell lysis is a commonly used method in cytological analysis. Due to its high efficiency, precision, and gentleness, it plays an irreplaceable role in life science research, medical testing, and bioengineering. As a core sample pretreatment technique in cytological analysis, it can rapidly break down cell structures, releasing intracellular bioactive substances and providing high-quality samples for subsequent component detection and molecular analysis. It serves as a crucial bridge connecting cell samples with precise analysis.
The core principle of this technology is based on the cavitation effect of ultrasound, a highly efficient and controllable physical process. When high-frequency ultrasound is transmitted to a liquid sample, it induces periodic vibrations in the liquid molecules. During the negative pressure phase, dissolved gases in the liquid aggregate to form tiny cavitation bubbles; during the positive pressure phase, these cavitation bubbles are compressed. Through repeated cycles, the cavitation bubbles grow to a critical size and rupture instantaneously, generating localized high temperature, high pressure, and strong shock waves. This mechanical shearing force can rapidly tear cell membranes or cell walls, releasing active components such as nucleic acids and proteins. Simultaneously, the mechanical vibration of ultrasound can help improve lysis efficiency, and combined with a temperature control device, it can prevent the inactivation of bioactive substances.
Compared to traditional cell lysis methods, ultrasonic cell lysis technology offers significant advantages. Traditional chemical lysis methods require reagents, easily contaminating samples and damaging the activity of target substances; mechanical grinding methods are inefficient, result in uneven fragmentation, and easily damage the sample. Ultrasonic lysis, however, uses a physical method, requiring no chemical reagents, and can preserve the activity and integrity of intracellular substances to the greatest extent, ensuring accurate analytical results. It boasts extremely high lysis efficiency, completing over 90% cell lysis within minutes, and can be adapted to different cell types by adjusting parameters such as ultrasonic power and frequency, achieving precise lysis.
Its applications are widely applicable to various fields of cell analysis. In life science research, it is a fundamental tool for genetic engineering and proteomics, capable of lysing bacterial, yeast, and animal/plant cells to extract relevant biological components, providing high-quality samples for various experiments. In medical testing, it can be used for clinical sample pretreatment, lysing blood and tissue cells to extract pathogen nucleic acids or specific proteins, aiding in precise diagnosis. In food and environmental monitoring, it can lyse microbial cells, releasing nucleic acids for rapid detection and improving the sensitivity of pollutant detection.
With technological iterations, ultrasound-guided cell lysis technology has been continuously optimized, achieving full-scenario adaptability from laboratory micro-processing to industrial-grade mass production. Intelligent control technology has further improved the accuracy and stability of lysis. In the future, its integration with microfluidics technology is expected to achieve precise single-cell lysis, expanding its application boundaries in fields such as precision medicine and continuously empowering cell analysis.
