Nanocages for gold particles: What is happening inside?

Scientists have used high-resolution crystallography to uncover the mechanism behind protein-assisted synthesis of gold nanoparticles, providing a platform for designing nanomaterials tailored for biomedical application.

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Novel nozzle saves crystals

Thanks to an innovative nozzle, scientists can now analyse more types of proteins while using fewer of the hard-to-get protein crystals. The nozzle can reduce protein consumption eightfold in serial X-ray crystallography experiments, as the team of inventors. The researchers used their novel nozzle to reveal hitherto unseen details of the structure of an RNA polymerase enzyme.

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Imaging at the speed of light

Over the past few years, researchers have used lasers to manipulate the properties of target materials and make them, for instance, superhydrophilic or superhydrophobic. Now the team has developed a technique to visualize, for the first time, the complete evolution of micro- and nanoscale structural formation on a material’s surface both during and after the application of a laser pulse.

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Two-dimensional MXene materials get their close-up

Researchers have long sought electrically conductive materials for economical energy-storage devices. Two-dimensional (2D) ceramics called MXenes are contenders. Unlike most 2D ceramics, MXenes have inherently good conductivity because they are molecular sheets made from the carbides and nitrides of transition metals like titanium.

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Drug combination delivered by nanoparticles may help in melanoma treatment

The first of a new class of medication that delivers a combination of drugs by nanoparticle may keep melanoma from becoming resistant to treatment, according to researchers.

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Shaping the future: Iron nanocubes may be key in the future of NO2 sensing

While nanoparticles sound like a recent discovery, these tiny structures have been used for centuries. Nanoparticles can be produced using either physical or chemical methods, though physical methods are advantageous due to the absence of organic contaminants commonly introduced by chemical methods. However, uniformly sized nanocubes are difficult to produce in sufficient quantities by physical methods. Now researchers have recently discovered a new approach to overcome this problem.

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VTT has developed stand-up pouches from renewable raw materials, nanocellulose

Lightweight 100% bio-based stand-up pouches have been developed with high technical performance. High performance in both oxygen, grease and mineral oil barrier properties has been reached by using different biobased coatings on paper substrate. The pouches exploit patent pending high consistency enzymatic fibrillation of cellulose (HefCel) technology.

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New nano-implant could one day help restore sight

A team of engineers has developed the nanotechnology and wireless electronics for a new type of retinal prosthesis that brings research a step closer to restoring the ability of neurons in the retina to respond to light. The researchers demonstrated this response to light in a rat retina interfacing with a prototype of the device in vitro.

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New method to program nanoparticle organization in polymer thin films

Researchers have developed an original method — soft-confinement pattern-induced nanoparticle segregation (SCPINS) — to fabricate polymer nanocomposite thin films with well-controlled nanoparticle organization on a submicron scale. This new method uniquely controls the organization of any kind of nanoparticles into patterns in those films, which may be useful for applications involving sensors, nanowire circuitry or diffraction gratings, with proper subsequent processing steps like thermal or UV sintering that are likely required.

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