Philadelphia-area biotech LIV Process develops a patented visualization system that makes otherwise invisible Clostridioides difficile spores visible on healthcare surfaces in real time. Its water-based solution binds to proteins on the spores and fluoresces under a dedicated light, helping hospital environmental-services teams target cleaning and verify that contamination has been removed. Founded by inventor and longtime medical-product executive Michael McIntyre, the company operates from headquarters in Ardmore with research and development in Cambridge.