Researchers from the University of Illinois have developed a method of stain-free chemical imaging to highlight the morphology and molecular content of biological samples without the use of any stains or dyes. The tissue is computationally recreated as if it were stained and imaged in diagnosis of biological samples. This method improves the cost and efficiency by avoiding expense and lessening the time required to complete multiple stains. Also, it improves the overall consistency of the staining process.