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Tailored Polymers from a Printer

Efficient chain transfer for 3D-printing of tough photopolymers

10-Jul-2018

An ever-growing number of coatings, including varnishes and printing inks, as well as tooth fillings, are cured with light. Yet, homogenous, tailored, polymer networks cannot be produced, and the materials tend to be brittle, which limits the use of photopolymers in applications like 3D printing, ...

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Organic Crystals Twist, Bend, and Heal

Soft crystal gives a multifunctional, all-in-one material

19-Jun-2018

Crystals are brittle and inelastic? A novel class of smart, bendable crystalline organic materials has challenged this view. Now, scientists have engineered a molecular soft cocrystalline structure that bends and twists reversibly and without disintegration when stimulated by high temperature, ...

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Anthracenes orbiting fullerenes

Supramolecular complex formation: Anthracene macrocycle and C60 fullerene

11-Jun-2018

Saturn is the second largest planet in our solar system and has a characteristic ring. Japanese researchers have now synthesized a molecular “nano-Saturn”. As the scientists report, it consists of a spherical C60 fullerene as the planet and a flat macrocycle made of six anthracene units as the ...

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Shine bright like a nanoaggregate

Highly luminescent inks made from copper–iodine hybrid clusters with aggregation-induced emission

29-May-2018

Chinese scientists have turned copper–iodine cluster molecules into aggregated, highly luminescent nanostructures for use in light-emitting diodes (LEDs). The solid-state assemblies made of complexes of the copper–iodine cluster with phosphor–organic compounds as ligands are easily prepared, ...

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Libraries for Proteins

Dynamic combinatorial libraries generated from hydrazone-functionalized surface mimetics

29-May-2018

Combinatorial libraries are a key component of the chemist's toolkit for ligand screening. Dynamic combinatorial libraries add a new dimension by interlinking synthesis and screening. Now, British scientists have developed a dynamic combinatorial library for the screening of supramolecular ligand ...

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Color Change Unmasks Lead

Triplex-signal chemosensor for naked eye and spectrometric lead detection

29-May-2018

Environmental lead exposure is one of the most significant public health threats worldwide. Consequently, reliable, quick, inexpensive, and easy-to-handle lead assays are urgently needed. Scientists have now presented a novel chemosensor for lead. It offers a triplex signal upon binding of lead ...

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Wood to Supercapacitors

Electrode materials from ultrathin carbon nanofiber aerogels derived from cellulose

25-May-2018

Carbon aerogels are ultralight, conductive materials, which are extensively investigated for applications in supercapacitor electrodes in electrical cars and cell phones. Chinese scientists have now found a way to make these electrodes sustainably. The aerogels can be obtained directly from ...

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Controlled Nano-Assembly

Universal pH regulated assembly of DNA nanostructures

24-May-2018

DNA, the carrier of genetic information, has become established as a highly useful building material in nanotechnology. One requirement in many applications is the controlled, switchable assembly of nanostructures. Scientists have now introduced a new strategy for control through altering pH ...

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Porous salts for fuel cells

Organic salts with high proton conductivity

23-Apr-2018

Scientists have developed a new class of crystalline porous organic salts with high proton conductivity for applications such as proton-exchange membranes for fuel cells. Polar channels that contain water play a critical role in proton conduction. At about 60 °C and high humidity, their proton ...

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Pores with a Memory

Porous polymer films with shape memory

08-Feb-2018

Whether for separation processes, photovoltaics, catalysis, or electronics, porous polymer membranes are needed in many fields. Membranes with micropores that switch between different shapes and/or sizes would expand the possibilities. Scientists have introduced a process that produces porous ...

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