Cleared Culture (video) Brown University Loading video... Caption Using a confocal microscope, researchers can study a cleared spherical 3-D tissue culture at any depth. The video begins on the near surface and exits on the far side of the culture. Credit Molly Boutin/Brown University Usage Restrictions with credit Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.