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Hybrid graphene biosensor breaks new record

New device can detect naltrexone at levels that are up to 100 times lower than those obtained using current clinical diagnostic techniques

Dry transfer technique improves GFETs

Doing away with wet chemistry altogether makes for better graphene transistors

Azulene breaks the rules

New result could be important for organic electronics and designing new electronic materials

A skinful of nanoparticles starts to show

Measuring the nanoparticle content in a skin sample can quantitatively indicate the concentration accumulated in internal organs.

What is the best shape for a nanoparticle?

When it comes to drug delivery to tumours, cubic nanocages or nanorods might be better than nanospheres or nanodisks

2D sheets and SERS

Graphene and other two-dimensional materials enhance Raman scattering when used as substrates

Graphene engine goes elastic

Researchers have made the first ever nanoscale internal combustion device.

Transition metal oxide switches when super-thin

Metallic lanthanum nickelate becomes an insulator when it is less than a nanometre thick

A dip in seawater energizes graphene

First observations of an induced "waving potential" when graphene is dipped into an ionic solution suggests possible applications in self-powered sensors and monitors, as well as in remote ocean devices.

Lattice mismatch opens up a bandgap in graphene

An exciting new way to control and fine-tune the electronic properties of devices made from the carbon sheet?

Moving solitons help make graphene semiconducting

Applied electric field can change the stacking order in trilayer material

Multijunction solar cells break new records

Full spectrum printed devices have efficiencies of nearly 44% and module level results of 36.5%

Multiple optical traps economize on laser power

Recycling laser power using an interferometer provides single-molecule biophysicists with multiple optical traps that are stable and less energy intensive than previous approaches.

Facet-controlled nanosheets improve Li-ion batteries

Researchers have synthesized single crystalline {010}-oriented nanosheets of lithium iron phosphate

Watching phase transitions in 2D semiconductors

New observations might be important for "in-layer" assembly of electronics devices in the future

Chalcogenide monolayers make good LEDs and lasers

A whole new world of heterojunctions based on 2D semiconductors

Nanotube-loaded monocytes treat tumours

Surprising new discovery could help fight a number of diseases, such as cancer, atherosclerosis and diabetes

Gateway opens for tuning diamond devices

Solid-state gate structures bring an unprecedented level of control to the state of defect centres in diamond, which may be useful in quantum computing, sensing and applications using single photon sources.

Photonic crystal makes watt-class laser

Surface-emitting device could be used in materials processing, sensing, medicine and for making compact optical systems

Loaded nanostars kill cancer cells

Nanoparticles containing large amounts of therapeutic oligonucleotides make for better anti-tumour agents