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A New Way to Atomically Thin Materials

Silicon secedes: titanium carbide flakes obtained by selective etching of titanium silicon carbide

06-Apr-2018

Metallic conductivity and hydrophilicity of MXenes have established them as electrodes in rechargeable batteries and supercapacitors, as well as other applications, including photothermal cancer therapy, electromagnetic shielding, water purification and gas sensing. In the journal Angewandte ...

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Water-Soluble Warped Nanographene

Synthesis of a water-soluble warped nanographene and its application for photo-induced cell death

13-Feb-2018

Graphene and its nano-sized little sibling, nanographene, are well known for their remarkable photoelectronic properties. However, biomedical applications are hampered by the insolubility of the materials, especially in water. A Japanese team of scientists has now introduced substituted “warped ...

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The Making of Biorelevant Nanomaterials

05-Jan-2018

The interactions of biological macromolecules such as nucleic acids, proteins, and polysaccharide–protein conjugates can be mimicked by artificial polyelectrolytes. Such synthetic polyionic complexes are expected to serve as novel platforms to stabilize and deliver drugs, proteins, or nucleic ...

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How To Draw Electricity from the Bloodstream

A one-dimensional fluidic nanogenerator with a high power-conversion efficiency

11-Sep-2017

Men build dams and huge turbines to turn the energy of waterfalls and tides into electricity. To produce hydropower on a much smaller scale, Chinese scientists have now developed a lightweight power generator based on carbon nanotube fibers suitable to convert even the energy of flowing blood in ...

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Lightweight Catalyst for Artificial Photosynthesis

Carbonitride aerogels mediate the photocatalytic conversion of water

07-Aug-2017

Nanochemistry meets macrostructures: Chinese scientists report the synthesis of a macroscopic aerogel from carbonitride nanomaterials which is an excellent catalyst for the water-splitting reaction under visible-light irradiation. The study adds new opportunities to the material properties of ...

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Name that Scotch

Colorimetric recognition of aldehydes and ketones

25-Jul-2017

Vodka tastes different from brandy, and connoisseurs can distinguish among different brands of whiskeys. The flavors of spirits result from a complex bouquet of volatile compounds. New colorimetric sensor arrays on disposable test-strips read by hand-held devices allow for their rapid, ...

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Tough aqua material for water purification

20-Jan-2017

Water purification processes usually make use of robust membranes for filtering off contaminants while working at high pressures. Can materials employing water as major component be made strong enough to suit such a demanding application? Israeli scientists now report that a supramolecular aqua ...

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Composite material for water purification

Removal of multiple contaminants from water by supported ionic liquid phases

17-Jan-2017

Fresh, clean water coming directly from the tap is a true luxury. In developing countries, people often have no choice but to use a contaminated river for drinking water. Water filters can help by quickly converting polluted surface or ground water into safe drinking water. In the journal ...

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Hydrogen from sunlight - but as a dark reaction

Generation, storage, and time-delayed release of electrons in graphitic carbon nitride material for artificial photosynthesis

13-Dec-2016

The storage of photogenerated electric energy and its release on demand are still among the main obstacles in artificial photosynthesis. One of the most promising, recently identified photocatalytic new materials is inexpensive graphitic carbon nitride. Scientists have now explored a modified ...

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Fighting the gram-negatives

Natural products inspire the design of molecular agents against drug-resistant bacterial strains

31-Oct-2016

Many microorganisms produce secondary natural products, the potential antibiotic effects of which are extensively investigated. German scientists have now examined a class of quinone-like substances containing an additional epoxide functional group for their antibiotic activities. As they report, ...

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