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A sensor consisting of an array of gold nanoparticles can distinguish the breath of lung cancer patients from the breath of healthy individuals without the need to pre-treat or dehumidify the samples.
The use of carbon nanotubes in medical applications will depend on the balance between risks and benefits. This article reviews these issues for imaging and therapeutic applications.
Inorganic nanoparticles only begin to show size-dependent effects when they have diameters below 20—30 nm. This has implications for the regulation of nanomaterials.
The electronic properties of graphene can be changed by exploiting its unusual thermal properties to introduce periodic ripples with given wavelengths and amplitudes.
Fluorescence correlation spectroscopy is used as a quantitative method to understand the binding and exchange behaviour of proteins on the surfaces of nanoparticles.
The latest results on electron transport in single molecules in solid-state devices are reviewed. The strength of the coupling between the molecules and the electrodes strongly influences the phenomena that are observed.
A new formulation of magnetic nanoparticles steered to cells by external magnets can deliver nucleic acids to turn off the growth of tumour blood vessels in mice.
Charge carriers have been confined by exploiting the small difference between the bandgap energies of the two naturally occurring stable isotopes of carbon.
The synchronization of four magnetic vortices without the use of a magnetic field has brought nanoscale microwave oscillators one step closer to fruition.
The atomic force microscope has recently been the subject of a series of exciting developments. The latest advance shows that this instrument can measure the charge state of an individual atom.
Carbon nanotubes have demonstrated considerable potential as tips for atomic force microscopy (AFM), but they are still not widely used. This article reviews the history and applications of nanotube–based AFM tips, and reports on research to improve their performance.