Vivid Microscopy, LLC, based in Hartland, WI, has generated three probes that can image, quantify and sort cells based on the levels of oxidative stress. These probes, SEMKUR-cell sorting, SEMKUR-quantitative and SEMKUR-imaging are available for sale. The technology behind these probes is described in two patents, US7820833 and US8927291. Our company is working with a number of institutions to demonstrate the probes use with a wide variety of applications. We offer fluorescent markers that are generated in accordance with our patents. Vivid products will provide our customers the ability to: Penetrate the cell membrane without causing damage to the cell. Are DiThiol based to provide maximum sensitivity. Have low redox potential. Will not permanently bind the target allowing for a more detailed study of cellular function. Co-Localization.