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Nanoparticles with dynamic patches can form reversible self-assembled structures in aqueous solution that become topologically more connected on dilution.
Individual double-walled tubular aggregates are immobilized on a solid substrate out of solution using a drop-flow technique. Using near-field scanning optical microscopy, these aggregates are shown to have a remarkably uniform supramolecular structure.
An array of nine sensors made up of gold nanoparticles functionalized with different organic groups can distinguish the breath of lung cancer patients from healthy individuals in an atmosphere of high humidity.
A chemical synthesis of a copper-based catalyst allows the synthesis of silicon nanowires to be compatible with standard complementary metal oxide semiconductor (CMOS) fabrication processes.
Germanium nanowires grown vertically on a silicon substrate are used to seed micrometre-size single-crystal germanium islands, with potential applications in three-dimensional integrated circuits.
Carbon nanotubes coated with a thin layer of gold can be a good alternative to fluorescent labels and gold nanoparticles for non-invasive in vivo photoacoustic and photothermal imaging.
Individual DNA origami shapes can be positioned and aligned on technologically useful substrates that have been patterned using electron-beam lithography and dry oxidative etching.
Transparent films of titania nanotubes up to 30-μm long are fabricated on transparent conducting oxide glass, and used to make dye-sensitized solar cells.
The room-temperature magnetism of colloidal doped semiconductor nanocrystals can be manipulated reversibly by controlling their electric charge state, making such materials attractive for potential spintronics applications.
The mobility of field-effect transistors made from self-assembled monolayers of liquid-crystal molecules depends on channel length only when the monolayer coverage is incomplete.
The dynamic production of oxidants inside cells can be quantified by a probe based on a single nanoparticle, offering a tool to monitor and understand how cells regulate their signalling responses.
A variety of structural changes in few-layer graphene samples can be followed with atomic resolution in real time by using high-resolution transmission electron microscopy.
Experiments on nanoparticles with highly uniform sizes show how acoustic vibrations are damped through a combination of intrinsic and viscous damping by the surrounding fluid.
Semiconductor quantum dots with both plasmonic and fluorescent signatures have been fabricated by controlling the distance between the core of the dot and an ultrathin gold shell to nanometre precision.