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Circulating tumour cells from patients with early-stage cancers have now been captured and characterized by using functionalized graphene oxide nanosheets.
Electromigration is used to rearrange single atoms in an atomic-sized metal contact and to switch its conductance between two well-defined values, enabling memory device functionality.
Bright luminescence from upconversion nanocrystals can be achieved by combining high-excitation irradiance with a high activator concentration. The enhanced brightness allows a single nanocrystal to be tracked, which can be used in bioimaging applications, for example.
Nanoscale superconducting quantum interference devices (SQUIDs) fabricated on the apex of a sharp tip can provide spin sensitivities that are nearly two orders of magnitude better than previous SQUID sensors.
Excitonic valley quantum coherence is optically generated and detected by polarization-resolved photoluminescence spectroscopy in the monolayer semiconductor WSe2.
A precision nanoassembly technique is used to deterministically create locally tunable, ultralow-disorder electron systems in suspended carbon nanotubes.
Two-dimensional arrays of plasmonic nanoparticles coupled with a gain medium can behave as a surface-emitting laser with near-zero group velocity and picosecond dynamics.
A plasmonic nanoantenna enables a thousand fold-enhanced fluorescence brightness allowing single-molecule analysis to be carried out in a zeptolitre volume at physiological concentrations.