Researchers have developed a novel method of 3D printing that uses acoustic holograms. The process is called holographic direct sound printing (HDSP).
Researchers have developed a novel method of 3D printing that uses acoustic holograms. The process is called holographic direct sound printing . It builds on a method introduced in 2022 that described how sonochemical reactions in microscopic cavitations regions -- tiny bubbles -- create extremely high temperatures and pressure for trillionths of a second to harden resin into complex patterns.
In order to retain the fidelity of the desired image, the hologram remains stationary within the printing material. The printing platform is attached to a robotic arm, which moves it based on a pre-programmed algorithm-designed pattern that will form the completed object. As a result, acoustic holography will be a launching pad for innovation across any number of fields: it can be used to create complex tissue structures, localized drug and cell delivery systems and advanced tissue engineering. Real-world applications include the creation of new forms of skin grafts that can enhance healing and improved drug delivery for therapies that require specific therapeutic agents at specific sites.
"You can imagine the possibilities," he says."We can print behind opaque objects, behind a wall, inside a tube or inside the body. The technique that we already use and the devices that we use have already been approved for medical applications."Printing objects from plastic precisely, quickly, and inexpensively is the goal of many 3D printing processes. However, speed and high resolution remain a technological challenge. A research team has ...
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