The National Institutes of Health (NIH), through the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), requires a replacement ultraviolet transilluminator and imaging system for the Liver Diseases Branch (LDB). The existing system is broken and irreparable, and this equipment is essential for ongoing laboratory research on liver diseases and viral infections. The system is used to visualize and document biological samples during routine experiments that support federally funded research into viral infections and potential treatments. Without a functioning system, researchers cannot properly analyze results, delaying critical research activities. No budget amounts or performance location were specified in the description.