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Microactuator Flexes Under Laser Light

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BERKELEY, Calif., Dec. 17, 2012 — A microscale actuator that flexes like a tiny beckoning finger under a burst of laser light may point toward practical applications in artificial muscles, microfluidics and drug delivery. The Lawrence Berkeley National Laboratory (Berkeley Lab) microactuator is more efficient and powerful than current microscale actuation technology, including human muscle cells, according to Berkeley Lab and University of California, Berkeley, scientist Junqiao Wu. It uses an oxide material that expands or contracts based on the temperature, providing more information about the fundamental materials...Read full article

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    Published: December 2012
    Glossary
    actuator
    Mechanical device intended for the translation (rotational and linear) using high precision control from electronically operated circuits. See linear actuator; rotary actuator.
    microfluidics
    Microfluidics is a multidisciplinary field that involves the manipulation and control of very small fluid volumes, typically in the microliter (10-6 liters) to picoliter (10-12 liters) range, within channels or devices with dimensions on the microscale. It integrates principles from physics, chemistry, engineering, and biotechnology to design and fabricate systems that handle and analyze fluids at the micro level. Key features and aspects of microfluidics include: Miniaturization:...
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    actuatorAmericasartificial musclesBerkeley LabBiophotonicsCaliforniachromium metalDepartment of EnergyDOEdrug deliverydrug delivery pumpelectrical currentJunqiao WuLawrence Berkeley National Laboratorymicrofluidicsmicroscale actuatorMicroscopyphase transitionsphotonicsResearch & Technologyrobotstorsion actuatorUniversity of California Berkeleyvanadium dioxideLasers

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