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Crystallization of acenes into high-mobility structures for transistors is achieved by pretreating the substrate in the region where crystallization is required. Cross-talk is prevented between devices by the amorphous material produced on the untreated region.
Although an isolated individual molecule clearly has only one ionization potential, multiple values are found for molecules in ordered assemblies. By understanding this phenomenon, design rules for improving organic electronic interfaces can be derived.
The precise mechanism of the insulator-to-metal transition in MnO has been unravelled by a computational approach that shows that the transition is a result of the simultaneous collapse of the magnetic moment.
The extracellular matrix of dense, avascular tissues presents a barrier to polymer-based therapeutics, such as drugs encapsulated within polymeric particles. Jeffrey Hubbell and colleagues now show that biomolecular binding of sufficiently small polymer nanoparticles can transform the matrix of cartilage tissue from a barrier into a reservoir, considerably improving the bioavailability of drugs in the matrix.