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These two tissue banks supply corneas and heart valves for use in patients throughout the UK. My research covers the storage of living cells and tissues used in transplantation as well as clinical follow-up studies on corneal transplant outcome . This research is the culmination of a long-standing dream that these bistable rotaxane molecules could be used for information storage , " said Stoddart , whose areas of expertise include nanoelectronics , mechanically interlocked molecules , molecular machines , molecular nanotechnology , self-assembly processes and molecular recognition , among many other fields of chemistry . One of the intriguing findings in the new research is the discovery that the two proteins responsible for sequestering the MHC sentries and tagging them for destruction - - the process known as endocytosis - - do not act at the site where this action occurs , not even in the same subcellular compartment , the scientists report .