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Categories: Engineering: Graphene, Engineering: Nanotechnology

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Scientists have successfully demonstrated that autonomous methods can discover new materials. The artificial intelligence (AI)-driven technique led to the discovery of three new nanostructures, including a first-of-its-kind nanoscale 'ladder.'

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Understanding how dust grains form in interstellar gas could offer significant insights to astronomers and help materials scientists develop useful nanoparticles.

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Translating electrochemical performance of large format batteries to microscale power sources has been a long-standing technological challenge, limiting the ability of batteries to power microdevices, microrobots and implantable medical devices. Researchers have created a high-voltage microbattery (> 9 V), with high-energy and -power density, unparalleled by any existing battery design.

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Researchers combine a polymer coating with silicon dioxide nanostructures to create a coating to prevent fogging and unwanted reflections. The technique solves a common problem for sensors such as lidar used in autonomous cars.

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Electric vehicles, powered by macroscopic electric motors, are increasingly prevalent on our streets and highways. Now a multidisciplinary team has made an electric motor you can't see with the naked eye: an electric motor on the molecular scale. This early work -- a motor that can convert electrical energy into unidirectional motion at the molecular level -- has implications for materials science and particularly medicine, where the electric molecular motor could team up with biomolecular motors in the human body.

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A team of chemical engineering researchers studied the mechanisms of drying the nanocrystals and proposed nanotechnology to render the nanocrystals highly redispersible in aqueous mediums, while retaining their full functionality, to make them easier to store and transport.

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The most well-known forms of carbon include graphite and diamond, but there are other more exotic nanoscale allotropes of carbon as well. These include graphene and fullerenes, which are sp2 hybridized carbon with zero (flat-shaped) or positive (sphere-shaped) curvatures. Researchers now report the discovery of a new form of carbon formed by heating fullerenes with lithium nitride.

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A material state known as super-lubricity, where friction between two contacting surfaces nearly vanishes, is a phenomenon that materials researchers have studied for years due to the potential for reducing the energy cost and wear and tear on devices, two major drawbacks of friction. However, there are times when friction is needed within the same device, and the ability to turn super-lubricity on and off would be a boon for multiple practical engineering applications.

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A team has developed a new method for making nano-membranes of 'smart' materials, which will allow scientists to harness their unique properties for use in devices such as sensors and flexible electronics.

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A team of engineers and neuroscientists has demonstrated for the first time that human brain organoids implanted in mice have established functional connectivity to the animals' cortex and responded to external sensory stimuli. The implanted organoids reacted to visual stimuli in the same way as surrounding tissues, an observation that researchers were able to make in real time over several months thanks to an innovative experimental setup that combines transparent graphene microelectrode arrays and two-photon imaging.

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Researchers developed a new graphene-based nanoelectronics platform compatible with conventional microelectronics manufacturing, paving the way for a successor to silicon.

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Scientists demonstrate how a highly conductive paint coating that they have developed mimics the network spread of a virus through a process called 'explosive percolation' -- a mathematical process which can also be applied to population growth, financial systems and computer networks, but which has not been seen before in materials systems. The finding was a serendipitous development as well as a scientific first for the researchers.

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A new study demonstrates a new, counterintuitive way to protect atomically-thin electronics -- adding vibrations, to reduce vibrations. By squeezing a liquid-metal gallium droplet, graphene devices are painted with a protective coating of gallium-oxide that can cover millimeter-wide scales, making it potentially applicable for industrial large-scale fabrication. The new technique improves device performance as well as protecting 2D materials from thermal vibration in neighboring materials.

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The nanomaterial graphene oxide -- which is used in everything from electronics to sensors for biomolecules -- can indirectly affect the immune system via the gut microbiome, as shown in a new study on zebrafish.

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Chemists use flash Joule heating to recover graphite anodes from spent lithium-ion batteries at a cost of about $118 per ton.

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A team presents a new, direct way to produce unsymmetrically constructed vicinal diamines. These structures are relevant for the function of biologically active molecules, natural products and pharmaceuticals.

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Researchers have applied emerging electronic tattoo (e-tattoo) technology to the tricky task of measuring stress levels by attaching a device to people's palms.

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A lightweight, ultra-shock-absorbing foam made from carbon nanotubes is so good at absorbing and dissipating the energy of an impact, it could vastly improve helmets and prevent concussions and other traumatic brain injuries.

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The flash Joule heating process turns asphaltenes, a byproduct of crude oil production, into graphene for use in composite materials.

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First insights into engineering crystal growth by atomically precise metal nanoclusters have been achieved in a new study.