RIYADH: Researchers at King Abdullah University of Science and Technology have unveiled a stain-free biopsy imaging method that could speed up cancer diagnosis and support artificial intelligence-assisted pathology in the future. University scientists say they have developed a platform that can generate detailed colored images directly from tissue samples without using the chemical dyes commonly required. In many labs today, tissue is stained to help pathologists see cellular patterns under a microscope. While widely used, the process can add time to diagnostic workflows.