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Transparent films of carbon nanotubes can accommodate strains of up to 150% and demonstrate conductivities as high as 2,200 S cm−1 in the stretched state.
The photoluminescence quantum yield of photogenerated carriers in silicon nanocrystals increases in a step-like fashion as photon energy is increased, consistent with high-efficiency carrier multiplication.
The bulk conductivity of a topological insulator composed of Bi, Sb and Te can be reduced by orders of magnitude by tuning the ratio of Bi to Sb, allowing surface states to dominate conduction.
Multi-criteria decision analysis and a value of information approach are used to develop a model for prioritizing research strategies into the environmental and human-health aspects of nanotechnology.
Incorporating gold nanowires into scaffolds used to create heart patches can improve electrical communication between cells and enhance the growth of tissues.
Simulation studies show that nanotubes with carbon shells at their tips are taken up by cells through the tip first, at a small angle of entry, before being rotated to a near-vertical alignment.
Gold nanoparticles can inhibit the amplification of base mismatches in DNA, allowing the genes associated with certain diseases to be identified more accurately for large sample sets.
Unzipping carbon nanotubes produces high-quality graphene nanoribbons with smooth edges for revealing the intrinsic quantum transport phenomena in these materials.
AFM-based experiments on single molecules reveal that a hydrogen-bonded rotaxane — a structure containing a molecular ring threaded onto a molecular axle — can generate directional forces comparable to those generated by natural molecular machines.
Nanowire-based solar cells offer open-circuit voltages and fill factors that are superior to those available from planar solar cells made of the same materials.
Pressurized blister tests show that the adhesion energies of graphene samples on silicon oxide are much higher than those measured in typical micromechanical structures.
Vesicle-capped nanotubes made from amphiphilic molecules with photoswitchable cores undergo controlled disassembly when exposed to ultraviolet light, and this process can be followed in real time with fluorescence microscopy.