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Mixing copper sulphate with phosphate-buffered saline that contains enzymes results in hybrid nanoflowers that display increased enzymatic activity compared with free enzymes.
A biochip fabricated on a silicon dioxide support grid allows genes to express proteins in the absence of cells, and the assembly of these proteins to be imaged in situ using transmission electron microscopy.
Silicon nanowires configured as field-effect transistors can be used to quantify the binding affinities and kinetics of protein interactions, offering a sensitive tool for disease diagnosis and drug discovery.
Six rhesus macaques injected with a cadmium-based quantum-dot formulation survived without any evidence of toxicity, but cadmium remained in certain organs after 90 days.
A phototransistor in which electric charges are absorbed by colloidal quantum dots and circulated in graphene exhibits high values for gain, responsivity and specific detectivity.
Quantum-dot-based infrared light-emitting diodes can achieve levels of brightness and efficiency that are competitive with state-of-the-art epitaxial devices by using linker molecules to control the distance between adjacent quantum dots.
Films of densely packed core–shell quantum dots demonstrate full-colour amplified spontaneous emission with single-exciton gain, and are used to build vertical-cavity surface-emitting lasers operating at very low optical pumping thresholds.
The resonant frequency and magnitude of graphene plasmons in graphene/insulator stacks depend on the layer number, which allows tunable filters and polarizers to be built.
The results of simultaneous measurements of the structure and optical properties of more than 200 single-walled carbon nanotubes are reported and included in an atlas that allows the chiral index of any single-walled nanotube to be determined from a measurement of its optical resonances, and vice versa.
Gold nanorods coated with biotin can be used to detect single proteins in real time by monitoring the surface plasmon resonance of the nanorod with a photothermal assay.