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A femtosecond laser can be a pacemaker for heart muscle cells

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Femtosecond lasers are used in applications as diverse as optical microscopy and lasik eye surgery. Now scientists at Osaka University in Japan have discovered that femtosecond laser pulses can cause heart muscle cells to contract. An increase in calcium levels within these cells normally signals them to contract. Therefore, as the investigators stimulated the cells with a femtosecond laser, they monitored the intracellular calcium levels using a fluorescent label for calcium and an Olympus microscope in fluorescence mode. They switched the microscope into phase-contrast mode to watch the...Read full article

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    Published: July 2008
    As We Go To PressBiophotonicsBreaking Newsfemtosecond laserslasik eye surgeryMicroscopyoptical microscopyPresstime Bulletin

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