Researchers at RMIT University have developed a coating method using high-frequency sound waves to protect delicate surfaces from ultraviolet radiation [1].
This technology provides a way to shield fragile biological materials, such as living leaves, without using heat or complex chemical processes that could damage the organism. By creating a protective barrier at room temperature, the method allows for the preservation of sensitive surfaces while blocking harmful UV rays [1], [3].
The process utilizes a sound-wave nebuliser to generate a fine mist [1]. This mist acts as a "plant sunscreen," settling on the surface of the leaf to create a shield against radiation [2]. Because the method is a single-step application, it simplifies the process of applying protective layers to organic matter [3].
Traditional coating methods often require high temperatures or harsh solvents that can kill plant tissues or degrade the material being protected. The RMIT approach avoids these risks by relying on acoustic energy to atomize the coating material into a mist [1], [2]. This ensures the integrity of the living leaf remains intact during the application process [3].
The research team based in Melbourne, Australia, designed the system to be non-thermal [1], [2]. This specific focus on room-temperature application makes the technology applicable to a wider range of delicate surfaces beyond agriculture [3].
“The process utilizes a sound-wave nebuliser to generate a fine mist.”
The development of a non-thermal, acoustic-based coating system represents a shift in how protective materials are applied to living organisms. By removing the need for heat, researchers can now apply UV shields to biological tissues that were previously too fragile for industrial coating processes, potentially increasing crop resilience in high-radiation environments.
