Ultrasonic spraying technology for preparing cell membrane coatings is a process in which biologically active cell membranes are evenly coated on the surface of a substrate through ultrasonic atomization. It combines the high efficiency and uniformity of ultrasonic spraying with the biological functionality of cell membranes, and has important applications in biomedicine (such as bionic implants, anti-fouling surfaces), sensors and other fields.
Application Scenarios and Advantages
Bionic Implants: Coating titanium alloy stents with endothelial cell membranes promotes vascular integration and reduces rejection.
Anti-fouling Surfaces: Red blood cell membrane coatings can reduce bacterial adhesion and thrombosis in medical catheters.
Biosensors: Cell membrane coatings retain receptor recognition, improving sensor sensitivity for specific biomolecules.
Ultrasonic spray coating is used to coat cell membranes. The effects of parameters such as the solution dispersion medium, substrate temperature, and liquid flow rate on the stability of the cell membrane coating are investigated. Compared to traditional spin coating and dip coating processes, ultrasonic spray coating offers advantages such as high efficiency, controllability, and high raw material utilization. Its advantages include high coating uniformity (small and controllable droplets), minimal damage to cell membranes (low-temperature atomization), and suitability for complex substrates (such as porous scaffolds and micro-curved devices).
The core advantages of ultrasonic spray coating lie in its unique combination of protection, uniformity, and controllability. This technology maximizes the bioactivity of cell membranes while enabling the production of high-quality, highly consistent coatings. It also offers operational flexibility and a wide range of applications. These advantages hold significant potential for applications in biomimetic materials, biosensors, drug delivery vehicles, and tissue engineering scaffolds.
