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Confining gadolinium-based contrast agents inside the porous structure of silicon microparticles can improve their T1 contrast, offering a general approach for developing highly efficient MRI contrast agents.
The unexpectedly low electron mobility in titania nanotubes is due to exciton-like trap states, rather than to grain boundaries or disorder as in other nanomaterials.
A Möbius strip — a ribbon-like structure with only one side — can be assembled from DNA origami and then reconfigured into various topologies by cutting along the length of the strip.
Graphene nanoribbons with a room-temperature bandgap have been grown on templated silicon carbide substrates at high density without the need for etching.
The capabilities of a new direct-printing method are demonstrated by fabricating nanowire field-effect transistors and arrays of pentacene thin-film transistors.
The replication of individual DNA templates catalysed by DNA polymerases at the orifice of an α-haemolysin nanopore allows the synthesis of DNA to be monitored in real time.
Optical rectification and electric-field enhancements in excess of 1,000 are observed when a subnanometre gap between gold electrodes is illuminated with infrared radiation.
A single electron can modulate the conductance of an InAs nanowire field-effect transistor by as much as 4,200% at 31 K, and has a charge sensitivity of 6 × 10−5e Hz−1/2 up to ∼200 K.
Graphene devices supported on single-crystal hexagonal boron nitride substrates show an enhanced mobility and carrier homogeneity, as well as reduced roughness, intrinsic doping and chemical reactivity, compared with traditional SiO2 substrates.
Micrometre-thick supercapacitors made from onion-like carbon nanoparticles exhibit orders of magnitude higher capacitance and energy density compared with electrolytic capacitors, and much higher charging/discharging rates than conventional supercapacitors.
By quantifying the competitive adsorption of chemicals and biomolecules onto nanoparticles, an index is developed for characterizing nanomaterials in biological systems, offering a way to create models for predicting the safety of nanomaterials.
A significant enhancement in the conductance of a graphene nanoribbon field-effect transistor is observed when a perpendicular magnetic field is applied.