Current Nanostructures News and Events

Current Nanostructures News and Events, Nanostructures News Articles.
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Nanotechnologies reduce friction and improve durability of materials
A team of scientists from the National Research Nuclear University MEPhI and Immanuel Kant Baltic State Federal University suggested using innovative thin films to considerably reduce friction and thus increase the durability of surfaces in mechanisms. This discovery can be important for many fields, from medicine to space technologies. (2021-02-16)

Self-assembly induced luminescence of Eu3+-complexes for bioimaging application
Yu Tang and Chun-Hua Yan from Lanzhou University successfully developed a nano-system with self-assembly induced luminescence (SAIL) through the design of the structure and assembly method of the Eu3+ complex. The assembled Eu3+-complex nanoparticles can be applied in biosensing and imaging by fluorescence intensity and lifetime assays. (2021-02-16)

SUTD research team extends 4D printing to nanophotonics
The newly developed shape memory polymer resist which allows for high-resolution 4D printing, promises a platform for information hiding for optical anti-counterfeiting and tunable photonic devices. (2021-01-22)

A display that completely blocks off counterfeits
POSTECH research team led by Professor Junsuk Rho develops nanostructures capable of polarized optical encryption. (2021-01-21)

DNA origami enables fabricating superconducting nanowires
In AIP Advances, researchers describe how to exploit DNA origami as a platform to build superconducting nanoarchitectures. The structures they built are addressable with nanometric precision that can be used as a template for 3D architectures that are not possible today via conventional fabrication techniques. Inspired by previous works using the DNA molecule as a template for superconducting nanowires, the group took advantage of a recent bioengineering advance known as DNA origami. (2021-01-19)

Modulating helical nanostructures in liquid crystal phase by molecular design
Toyohashi University of Technology has successfully developed sulfur-containing liquid crystal (LC) dimer molecules, which exhibit a helical liquid crystal phase, over a wide temperature range. It is that the ester bond direction in the molecular structures largely impacts the pitch lengths of helical nanostructures in the NTB phase. It is expected that this molecular design can be used to tune the resultant physical properties of LC materials that would contribute to new LC technologies. (2021-01-18)

Long-range energy transport in perovskite nanocrystal films
High efficiency solar cells and light-emitting devices are end-goal targets towards a more sustainable world. Nanostructures possess distinct advantages due to their exceptional optical and electronic properties under the influence of light. Yet, their wide-spread application in real-world devices is limited by their poor transport properties. Scientists discovered that nanocrystals made with halide perovskites, a recently discovered revolutionary semiconductor, can lead to long-range energy transfer, opening new avenues for future devices implementing disruptive nanotechnologies. (2021-01-12)

Researchers develop new one-step process for creating self-assembled metamaterials
A team led by University of Minnesota Twin Cities researchers has discovered a groundbreaking one-step process for creating materials with unique properties, called metamaterials. (2021-01-11)

Nanocrystals that eradicate bacteria biofilm
POSTECH-UNIST joint research team finds ways to control the surface texture of nanostructures. (2021-01-08)

Bionic idea boosts lithium-ion extraction
Chinese researchers from Prof. WEN Liping's team at the Technical Institute of Physics and Chemistry and Prof. ZHANG Qianfan's team from Beihang University have recently made progress in the preparation and application of a bioinspired material that is capable of achieving controlled ion transport and sieving, especially for lithium-ion extraction. (2020-12-30)

RUDN University physicists described a new type of amorphous solid bodies
Many substances with different chemical and physical properties, from diamonds to graphite, are made up of carbon atoms. Amorphous forms of solid carbon do not have a fixed crystal structure and consist of structural units--nanosized graphene particles. A team of physicists from RUDN University studied the structure of amorphous carbon and suggested classifying it as a separate type of amorphous solid bodies: a molecular amorphic with enforced fragmentation. (2020-12-02)

Tunable rainbow light trapping in ultrathin resonator arrays
Light squeezed into nanoscale metallic gaps has a myriad of applications in sensing, energy, and nonlinear optics. Recently, scientists at the University of Toronto have developed a new paradigm for the design of ultrathin metallic nanostructures which allows for precision tailoring to fit any desired application. This design strategy, coupled with a novel fabrication technique, provides a promising platform for the advancement of nanoscale optics. (2020-12-01)

Shining a light on nanoscale dynamics
Watching metamaterials at work in real time using ultrafast electron diffraction: a research team led by University of Konstanz physicist Peter Baum succeeds in using ultrashort electron pulses to measure light-matter interactions in nanophotonic materials and metamaterials. (2020-11-24)

One-way street for electrons
An international team of physicists, led by researchers of the Universities of Oldenburg and Bremen, Germany, has recorded an ultrafast film of the directed energy transport between neighbouring molecules in a nanomaterial. Theoretical simulations confirmed the experimental finding. The results have been published in the journal Nature Nanotechnology. (2020-11-20)

Scientists age quantum dots in a test tube
Researchers from MIPT and the RAS Institute of Problems of Chemical Physics have proposed a simple and convenient way to obtain arbitrarily sized quantum dots required for physical experiments via chemical aging. (2020-11-19)

Making 3D nanosuperconductors with DNA
A platform for making 3D superconducting nano-architectures with a prescribed organization could find application in quantum computing and sensing. (2020-11-10)

Magnetic nature of complex vortex-like structures in a Kagome crystal Fe3Sn2
Three-dimensional magnetic bubbles were demonstrated from the view of integral magnetizations for the first time, which clarify the physics behind complex multi-ring and arc-shaped vortices obtained from two-dimensional transmission electron microscopy magnetic imaging. (2020-10-28)

Cicada-inspired waterproof surfaces closer to reality, researchers report
A multidisciplinary group that studies the physical and chemical properties of insect wings has demonstrated the ability to reproduce the nanostructures that help cicada wings repel water and prevent bacteria from establishing on the surface. The new technique - which uses commercial nail polish - is economical and straightforward, and the researchers said it will help fabricate future high-tech waterproof materials. (2020-10-22)

Asymmetric optical camouflage: Tuneable reflective color accompanied by optical Janus effect
Deliverying viewing-direction sensitive information display across single sheet of transreflective window is introduced. Based on the experimental verification of theoretical modelling, scientists in Republic of Korea invented colour tuneable optical device that displays different colours and messages depending on viewing direction which is completely new and exotic optical phenomenon. A step further, they realized asymmetric information encryption via colour matching across the distinct colour boundary. (2020-10-20)

Scientists replicated self-cleaning anti-reflective coating of insects' eyes
Scientists from Russia and Switzerland have probed into nanostructures covering the corneas of the eyes of small fruit flies. Investigating them the team learned how to produce the safe biodegradable nanocoating with antimicrobial, anti-reflective, and self-cleaning properties in a cost-effective and eco-friendly way. The protection coating might find applications in diverse areas of economics including medicine, nanoelectronics, automotive industry, and textile industry. The article describing these discoveries appears in Nature. (2020-10-13)

New method to design diamond lattices and other crystals from microscopic building blocks
In a new study appearing in the journal Physical Review Letters, researchers describe a technique for using LEGO®-like elements at the scale of a few billionths of a meter. Further, they are able to cajole these design elements to self-assemble, with each LEGO® piece identifying its proper mate and linking up in a precise sequence to complete the desired nanostructure. (2020-09-14)

Computational modelling explains why blues and greens are brightest colous in nature
Researchers have shown why intense, pure red colours in nature are mainly produced by pigments, instead of the structural colour that produces bright blue and green hues. (2020-09-11)

A new twist on DNA origami
A team* of scientists from ASU and Shanghai Jiao Tong University (SJTU) led by Hao Yan, ASU's Milton Glick Professor in the School of Molecular Sciences, and director of the ASU Biodesign Institute's Center for Molecular Design and Biomimetics, has just announced the creation of a new type of meta-DNA structures that will open up the fields of optoelectronics (including information storage and encryption) as well as synthetic biology. (2020-09-07)

New method of detecting illnesses including coronavirus and cystic fibrosis
A new and quicker method of diagnosing diseases in patients has been created by researchers. The team has developed a system of examining individual molecules to detect the presence of disease in blood. (2020-09-02)

Nanodots made of photovoltaic material support waveguide modes
New spectroscopic technique for studying nanostructures demonstrates that stibnite nanodots can act as high-optical-quality waveguides and are promising candidates as photoswitchable materials for future applications (2020-08-26)

Routing valley exciton emission of a WS2 monolayer via in-plane inversion-symmetry broken PhC slabs
The researchers demonstrate all-dielectric photonic crystal (PhC) slabs without in-plane inversion symmetry (C2 symmetry) could separate and route valley exciton emission of a WS2 monolayer at room temperature. Coupling with circularly polarized photonic Bloch modes of such PhC slabs, valley photons emitted by a WS2 monolayer are routed directionally and efficiently separated in the far field. In addition, the far-field emission is directionally enhanced and with long-distance spatial coherence property. (2020-08-24)

Stanford scientists slow and steer light with resonant nanoantennas
Researchers have fashioned ultrathin silicon nanoantennas that trap and redirect light, for applications in quantum computing, LIDAR and even the detection of viruses. (2020-08-20)

Controlling the electron spin: Flip it quickly but carefully
Over the past two decades, a new area at the interface of semiconductor physics, electronics and quantum mechanics has been gaining popularity among theoretical physicists and experimenters. This new field is called spintronics, and one of its main tasks is to learn how to control the spin of charge carriers in well known semiconductor structures. (2020-08-19)

Insect wings inspire new ways to fight superbugs
The wings of cicadas and dragonflies are natural bacteria killers, inspiring scientists who are searching for new ways to defeat drug-resistant superbugs. They've now revealed how bioinspired nanomaterials physically destroy bacteria. It's a vital step on the way to delivering precisely engineered anti-bacterial surfaces, and powerful new weapons in the fight against deadly superbugs. (2020-08-18)

Enhanced water repellent surfaces discovered in nature
Through the investigation of insect surfaces, Penn State researchers have detailed a previously unidentified nanostructure that can be used to engineer stronger, more resilient water repellent coatings. (2020-07-17)

Designing DNA from scratch: Engineering the functions of micrometer-sized DNA droplets
Scientists at Tokyo Institute of Technology (Tokyo Tech) have constructed ''DNA droplets'' comprising designed DNA nanostructures. The droplets exhibit dynamic functions such as fusion, fission, Janus-shape formation, and protein capture. Their technique is expected to be applicable to a wide variety of biomaterials, opening doors to many promising applications in materials design, drug delivery, and even artificial cell-like molecular systems. (2020-07-15)

Experiment confirms liquids show properties of solid bodies at microscopic scales
The collaborators are Kazan Federal University, Vereschagin Institute of High Pressure Physics (Russian Academy of Sciences), Queen Mary University of London, Imperial College London, Rutherford Appleton Laboratory, Wuhan University of Technology, and Sichuan University. (2020-07-13)

Researchers discover new boron-lanthanide nanostructure
A newly discovered nanocluster has a geometry that ''has not been observed in chemistry heretofore,'' the researchers say. (2020-06-25)

Unlocking PNA's superpowers for self-assembling nanostructures
Researchers at Carnegie Mellon University have developed a method for self-assembling nanostructures with gamma-modified peptide nucleic acid, a synthetic mimic of DNA. The process has the potential to impact nanomanufacturing and future biomedical technologies like targeted diagnostics and drug delivery. (2020-06-12)

UCF's butterfly-inspired nanotech makes natural-looking pictures on digital screens
The new technology creates digital displays that are lit by surrounding light and are more natural looking than current display technologies that rely on energy-intensive bright lights hidden behind screens. The findings were published Wednesday in the journal Proceedings of the National Academy of Sciences. (2020-06-04)

Discovery unlocks 'hot' electrons for more efficient energy use
Researchers have demonstrated how a technique using a scanning tunneling microscope integrated with lasers and other optical components reveals the energy distribution of hot electrons. (2020-06-04)

Extraordinary modulation of light polarization with dark plasmons in magnetoplasmonic nanocavities
Enhancing magneto-optical effects is crucial for the size reduction of key photonic devices based on non-reciprocal propagation of light and to enable active nanophotonics. In this direction, an international team lead by CIC Nanogune (Spain) theoretically proposed and experimentally demonstrated a novel conceptual roadmap to boost magnetization-induced polarization modulation using multipolar dark plasmon modes in asymmetric magnetoplasmonic nanocavities. This new conceptual design could lead to broad applications in optical communications, sensing, and imaging. (2020-06-02)

Stretchable variable color sheet that changes color with expansion and contraction
Toyohashi University of Technology research team have succeeded in developing a variable color sheet with a film thickness of 400 nanometers that changes color when stretched and shrunk. The developed stretchable color sheets are expected to be applied to adhesive-type display elements, as they can adhere to skin or be transferred to various electronic devices at room temperature utilizing the high adhesiveness of elastomers. (2020-06-02)

Smart sponge could clean up oil spills
Researchers have developed a highly porous smart sponge that selectively soaks up oil in water. It can absorb more than 30 times its weight and be reused many dozens of times. (2020-05-28)

Physicists have developed a sensor that can be used in both industry and biomedicine
Magnetic field sensors are largely used in industry, medicine, as well as in applied and fundamental physics. (2020-05-18)

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