Fluorescent Probes for the Detection of Ethylene

New process for using olefin metathesis-based fluorescent probes for the selective detection of ethylene in live cells. These molecules contain a Ru center bound in close proximity to a fluorophore. This makes the compounds very weakly fluorescent. Upon reacting with ethylene the fluorescence dramatically increases and this is the readout saying that ethylene is present. Different structures influence kinetics and are being further optimized. Low detection limits (<10 ppm) can be achieved with first generation probes and lower detection limits are possible. These probes are selective for ethylene over other alkenes and are capable of detecting ethylene in live cells and from ripening fruit. CeCe Ging techtransfer@du.edu 303-871-4230

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