Volume 10 Issue 6, June 2015

Correcting the scientific literature with the help of the research community.

When it comes to safety, the jury's still out on which nanoparticle characteristics we should be measuring. But, as Andrew D. Maynard explains, there's a rich history dating back over a hundred years on how we measure them.

Single-photon sources have been demonstrated in two-dimensional semiconductors.

Single-molecule junctions with high rectification ratios can be realized by exposing different electrode surface areas to an ionic liquid.

An axle-shaped molecule pumps charged rings from solution into an alkyl collection unit, a mechanism that, in two repetitive cycles, takes the system increasingly further from equilibrium.

Three different mechanical waveforms are generated at the nanoscale by Fourier synthesis of surface acoustic waves.

Zero-dimensional photonic quantum emitters can be realized using defects in the two-dimensional dichalcogenides.

Emission of single photons can be achieved by using defects in two-dimensional crystals as a source of luminescence.

Single photon emitters can form at the interfaces between layers of WSe₂.

Single photons can be emitted by defects in WSe₂ with emission properties that can be controlled through an applied voltage.

Four mechanical waveforms at the nanoscale have been electrically generated by Fourier synthesis of a monochromatic surface acoustic wave and three of its harmonics.

Polarization-resolved photoluminescence measurements reveal the anisotropic character of excitons in monolayer black phosphorus, which are found to have a large binding energy.

Single-molecule diodes with rectification ratios over 200 at low voltages can be obtained with symmetric molecules by creating an environmental asymmetry using electric double-layers.

DNA-based T-motifs that can self-assemble into ring structures can be designed to self-replicate through toehold-mediated strand displacement reactions.

High charge-carrier mobility that enables the observation of quantum oscillation is reported in mono- and few-layer MoS₂ encapsulated and contacted by other two-dimensional materials.

The sensitivity of a magnetometer based on a nitrogen–vacancy centre can be enhanced by three orders of magnitude by using a ferromagnetic nanoparticle.

When supplied with redox energy, a dumbbell-shaped molecule can take small charged molecules from solution and thread them around an oligomethylene chain.

Arrays of vertical nanopillars are used to study the deformability of the cell nucleus and its mechanical coupling with the cell membrane.

Science competitions in secondary school can inspire students and teachers alike, as Eric Plum, now a lecturer, and his former teacher Walter Stein explain.