Recent advances in modern extracellular vesicle isolation and separation techniques.

Area of Science:

• Biotechnology
• Cell Biology
• Nanotechnology

Background:

• Extracellular vesicles (EVs) are nanoscale vesicles secreted by various cells and organisms, playing key roles in intercellular communication.
• Their potential in diagnostics and therapeutics has driven significant research interest over the past two decades.
• Reliable isolation and separation methods are essential for exploiting EVs and their subpopulations.

Purpose of the Study:

• To review modern and emerging isolation and separation techniques for extracellular vesicles (EVs).
• To compare these techniques based on purity, yield, scalability, and other critical parameters.
• To highlight promising industrial applications of EVs.

Main Methods:

• Focus on size-, charge-, and affinity-based isolation and separation techniques.
• Includes ultracentrifugation and precipitation methods for comparison.
• Evaluates techniques for purity, yield, scalability, integrity, and minimization of contaminants.

Main Results:

• Newly developed techniques show improved minimization or elimination of interfering nanocomponents, enhancing purity.
• In vivo studies utilizing EVs are becoming more frequent.
• Combined and hyphenated techniques are most effective in overcoming isolation challenges.

Conclusions:

• Advanced isolation and separation techniques are crucial for the clinical and diagnostic applications of extracellular vesicles (EVs).
• While purity has improved, challenges remain, necessitating the development of more sophisticated methods.
• Combined and hyphenated approaches offer the most promising solutions for overcoming current limitations in EV isolation and separation.