Sentences with phrase «graphene oxide in»

Past attempts at making nanoscrolls started with graphene oxide in its un-reduced or partially reduced states.

The researchers also made a claw shape by sticking together eight 5 - by - 1 millimeter ribbons of flash - treated graphene oxide in a star shape.

It involved dispersing graphene oxide in a solution, loading in a small amount of ruthenium and then freeze - drying the new solution and turning it into a foam.

Not exact matches

«Super-strong graphene oxide: In situ bandgap tuning of graphene oxide achieved by electrochemical bias.»

The ability to modulate the physical properties of graphene oxide within electronic components could have numerous applications in technology.

The researchers discovered that heat - treating graphene oxide and small amounts of cobalt salts in a gaseous environment forced individual cobalt atoms to bind to the material.

Previous research at The University of Manchester found that if immersed in water, graphene - oxide membranes become slightly swollen and smaller salts flow through the membrane along with water, but larger ions or molecules are blocked.

But recently, scientists have discovered that radioactive materials in water can clump onto flakes of graphene oxide (GO).

However, this approach requires precision engineering of nano - features (in a detection chip), complex optical setups, novel nano - probes (such as graphene oxide, carbon nanotubes, and gold nanorods) or additional amplification steps such as aggregation of nanoparticles to achieve sensitive detection of biomarkers.

Dr Joshi has an international reputation in this area, having published many highly cited articles including one in the journal Science on graphene oxide - based filtration in 2014 while working at the University of Manchester with Nobel Laureate Sir Andre Geim.

Researchers at Penn State and Shinshu University in Japan have developed a simple, scalable method of making graphene oxide (GO) fibers that are strong, stretchable and can be easily scrolled into yarns with strengths approaching that of Kevlar.

Researchers at Umeå University, together with researchers at Uppsala University and Stockholm University, show in a new study how nitrogen doped graphene can be rolled into perfect Archimedean nano scrolls by adhering magnetic iron oxide nanoparticles on the surface of the graphene sheets.

By this method they obtain anchoring sites for the iron oxide nanoparticles that are decorated onto the graphene sheets in a solution process.

Using metal ions with three or more positive charges, researchers in Tian's laboratory bonded graphene - oxide flakes into a transparent membrane.

With the discovery, the material that the researchers call «metal oxide - laser induced graphene» (MO - LIG) becomes a new candidate to replace expensive metals like platinum in catalytic fuel - cell applications in which oxygen and hydrogen are converted to water and electricity.

In the journal Optical Materials Express, from The Optical Society (OSA), the researchers reported that graphene oxide sheets treated with brief exposure to bright light in the form of a camera flash exhibited reversible bending at angles from zero to 85 degrees in response to switching the relative humidity between 33 and 86 percenIn the journal Optical Materials Express, from The Optical Society (OSA), the researchers reported that graphene oxide sheets treated with brief exposure to bright light in the form of a camera flash exhibited reversible bending at angles from zero to 85 degrees in response to switching the relative humidity between 33 and 86 percenin the form of a camera flash exhibited reversible bending at angles from zero to 85 degrees in response to switching the relative humidity between 33 and 86 percenin response to switching the relative humidity between 33 and 86 percent.

By 3D printing the bacteria in precise patterns on the graphene oxide, they hope to carve lines of conductivity, like tiny wires, on an otherwise non-conductive surface.

They showed that the lithium ions form a thin film on the surface of the graphene oxide and then diffuse through defect sites — essentially gaps in the layers of the material — before settling below the bottom layer of the graphene oxide.

For example, by removing some of the oxygen from graphene oxide, the electrically insulating material can be rendered conductive, opening up prospects for use in flexible electronics, sensors, solar cells and biomedical devices.

Schematics of lithum deposition mechanism in the case of graphene - oxide - modified samples.

5 sessions run in parallel for the whole week to cover a broad range of topics from graphene to molecules on surfaces, from surface magnetism to oxide surfaces and interfaces.

Stein and Amadei applied both techniques to solutions of graphene oxide flakes and observed similar effects: The bubbles that were created in solution eventually collapsed, releasing energy that caused the flakes to spontaneously curl into scrolls.

3D - printing bacterial ink onto sheets of graphene oxide could make precise patterns of highly - conductive material in a cheaper and easier way

They then placed the graphene oxide flakes in solution and stimulated the flakes to curl into scrolls, using two similar approaches: a low - frequency tip - sonicator, and a high - frequency custom reactor.

Stein says graphene oxide nanoscrolls could also be used as ultralight chemical sensors, drug delivery vehicles, and hydrogen storage platforms, in addition to water filters.

As Jake Lanphere, a UC Riverside graduate student who co-authored the paper, which was published in the journal Environmental Engineering Science («Stability and Transport of Graphene Oxide Nanoparticles in Groundwater and Surface Water»), explained to Nanoclast in an email interview: «Other studies have looked at ideal lab conditions that do not necessarily reflect the conditions one might find in aquatic environments.

In other research published in the Journal of Hazardous Materials («Investigation of acute effects of graphene oxide on wastewater microbial community: A case study»), investigators determined that the toxicity of GO was dose dependent and was toxic in the range of 50 to 300 mg / In other research published in the Journal of Hazardous Materials («Investigation of acute effects of graphene oxide on wastewater microbial community: A case study»), investigators determined that the toxicity of GO was dose dependent and was toxic in the range of 50 to 300 mg / in the Journal of Hazardous Materials («Investigation of acute effects of graphene oxide on wastewater microbial community: A case study»), investigators determined that the toxicity of GO was dose dependent and was toxic in the range of 50 to 300 mg / in the range of 50 to 300 mg / L.

Researchers at University of California, Riverside have measured the mobility of graphene oxide (GO) in water and have determined that it could move around easily if it were released into lakes and streams.

Adapting an existing in - house technology, a graphene oxide solution is poured onto a wax - printed paper membrane.

This membrane acts as a kind of mould which, when wetted briefly in water and then hand - shaken (yes, hand - shaken) from side to side in ethanol, sets and releases multiple self - rolled graphene oxide tubes — the basic building block of our micromotors.

Immune response is required for the control of in vivo translocation and chronic toxicity of graphene oxide.

For example, a conductive tip can be used to write patterns on different materials by locally oxidizing or reducing a surface, a method that has been used to create conductive channels in, for example, graphene and oxide interfaces.

Investigation and tuning of graphene electrodes for solution - processable metal oxide thin - film transistors in the area of low - cost electronics - CMOT

Molecular dynamics simulations show that a preferential binding of PSS one side of the graphene oxide nanosheets gives rise to the curvature of the nanosheet during scroll formation, in part from the hydrophilic nature of the PSS layer.

So, adding sodium dodecyl sulfate allows the graphene to evenly mix in the water with the precursors for the oxide crystals.

They additionally found the reason why their battery works: the spacing of the iridium catalyst nanoparticles in the reduced graphene oxide (rGO) cathode favor the production of lithium superoxide (LiO2) and inhibit peroxide (Li2O2) generation.