Current Nanocrystals News and Events

Current Nanocrystals News and Events, Nanocrystals News Articles.
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Scientists use a novel ink to 3D print 'bone' with living cells
3D printers may one day become a permanent fixture of the operating theatre after UNSW scientists showed they could print bone-like structures containing living cells. (2021-01-25)

Highly efficient perovskite light-emitting diodes for next-generation display technology
Highly efficient perovskite light-emitting diodes for next-generation display technology. (2021-01-24)

Nanotechnology prevents premature birth in mouse studies
In a study in mice and human cells, Johns Hopkins Medicine researchers say that they have developed a tiny, yet effective method for preventing premature birth. (2021-01-13)

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)

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

Goldilocks and the three quantum dots: Just right for peak solar panel performance
Maximizing the efficiency of renewable energy technology is dependent on creating nanoparticles with ideal dimensions and density, new simulations have shown. (2020-12-20)

Industrial waste is reused to produce alternatives to plastic
Researchers at São Paulo State University reused bacterial cellulose scraps usually thrown away by manufacturers of wound dressings to make strong biodegradable film for food packaging (2020-12-14)

Artificial Chemist 2.0: quantum dot R&D in less than an hour
A new technology, called Artificial Chemist 2.0, allows users to go from requesting a custom quantum dot to completing the relevant R&D and beginning manufacturing in less than an hour. The tech is completely autonomous, and uses artificial intelligence and automated robotic systems to perform multi-step chemical synthesis and analysis. (2020-12-10)

Scientists model photoluminescence kinetics in semiconductor nanoplatelets for better optoelectroni
The hunt for materials and systems with better optical properties has always been one of the focal points of semiconductor research. Tailoring the synthesis of photoluminescent nanocrystals for specific applications may require predictions of spectral and relaxation characteristics. Hence, researchers need a detailed understanding and modeling of the underlying kinetics. Scientists presented their simulation and theoretical models and showed that the proposed approach reproduces all the features of experimental curves measured for different nanoplatelet systems. (2020-12-09)

Success in controlling perovskite ions' composition paves the way for device applications
Hybrid organic-inorganic perovskites have received much attention as potential next generation solar cells and as materials for light-emitting devices. Kobe University's Associate Professor TACHIKAWA Takashi (of the Molecular Photoscience Research Center) and Dr. KARIMATA Izuru (previously a graduate student engaged in research at the Graduate School of Science) have succeeded in completely substituting the halide ions of perovskite nanocrystals while maintaining their morphology and light-emitting efficiency. (2020-11-13)

The applications of liquid crystals have been extended to drug encapsulation
Widely used in the manufacture of LCD screens and, more recently, phosphorescent sensors, liquid crystals may also have an important application in biomedicine. An international research group led by the Complutense University of Madrid has leveraged the structure of certain liquid crystal materials to encapsulate and transport water-insoluble compounds with characteristics similar to those of many anti-tumour drugs that are difficult to administer because of their high hydrophobicity. (2020-11-06)

Breakthrough quantum-dot transistors create a flexible alternative to conventional electronics
Researchers at Los Alamos National Laboratory and their collaborators from the University of California, Irvine have created fundamental electronic building blocks out of tiny structures known as quantum dots and used them to assemble functional logic circuits. (2020-10-29)

A flexible color-changing film inspired by chameleon skin (video)
Chameleons can famously change their colors to camouflage themselves, communicate and regulate their temperature. Scientists have tried to replicate these color-changing properties for stealth technologies, anti-counterfeiting measures and electronic displays, but the materials have limitations. Now, researchers have developed a flexible film that changes color in response to stretching, pressure or humidity. They report their results in ACS Applied Materials & Interfaces. (2020-10-21)

Well-formed disorder for versatile light technologies
Researchers at ETH have managed to make an efficient material for broadband frequency doubling of light using microspheres made of disordered nanocrystals. The crucial idea for the method arose during a coffee break. In the future, the new approach could be used in lasers and other light technologies. (2020-10-13)

Air stable intrinsically stretchable color-conversion layers for stretchable displays
The development of a stretchable display that can be bent, stretched, and attached to the skin as a free-standing film appeared in science fiction films is expected to be one step closer. The research team led by Prof. Tae-Woo Lee from Seoul National University announced on the 29th that they have successfully achieved a stretchable color conversion layer (SCCL) using perovskite nanocrystals (PeNCs) and applied it to stretchable displays. This study has made it possible to accelerate the development of next-generation stretchable light-emitting devices. (2020-10-04)

Shape matters for light-activated nanocatalysts
Points matter when designing nanoparticles that drive important chemical reactions using the power of light, according research from Rice University's Laboratory for Nanophotonics. (2020-09-18)

New microfluidic device minimizes loss of high value samples
A major collaborative effort that has been developing over the last three years between Arizona State University and European scientists, has resulted in a significant technical advance in X-ray crystallographic sample strategies. (2020-09-09)

A new kind of liquid scintillator via hybridizing perovskite nanocrystals with organic molecules
Highly-efficient scintillators are playing an essential role in various fundamental science and industrial applications. For enhancing quantum yield, scientists in South Korea demonstrated a new kind of scintillating nanomaterials via hybridizing perovskite nanocrystals with organic molecules, which make it possible to detect X-rays efficiently and to achieve high-quality X-ray images in liquid form. The hybrid nanomaterials will hold substantial promise for advancing the industrial applications of X-ray imaging and producing intriguing scintillation in other hybrid nanomaterial systems. (2020-09-09)

Structural colors from cellulose-based polymers
A surface displays structural colors when light is reflected by tiny, regular structural elements in a transparent material. Researchers have now developed a method to make structural colors from cellulose-based polymers by using coated droplets that exist in a surrounding fluid--so-called liquid marbles. The system readily responds to environmental changes, which makes it interesting for applications in bio-based sensors and soft photonic elements, according to the study published in the journal Angewandte Chemie. (2020-08-28)

CU student helps bridge teams at Clemson
Three teams of researchers at Clemson University have joined forces to unravel some of the mysteries surrounding perovskite nanocrystals, which are semiconductors with numerous applications, including LEDs, lasers, solar cells and photodetectors. (2020-08-20)

UCI materials scientists study a sea creature that packs a powerful punch
University of California, Irvine materials science researchers discovered that the dactyl clubs of mantis shrimp have a uniquely designed nanoparticle coating that absorbs and dissipates energy. The findings, published Aug. 17, 2020 in Nature Materials, have significant implications for engineered materials in the automotive, aerospace and sports industries. (2020-08-17)

Nanocrystals from recycled wood waste make carbon-fiber composites tougher
In a new study, Texas A&M University researchers have used a natural plant product, called cellulose nanocrystals, to pin and coat carbon nanotubes uniformly onto the carbon-fiber composites. The researchers said their prescribed method is quicker than conventional methods and also allows the designing of carbon-fiber composites from the nanoscale. (2020-08-11)

Liquid crystals create easy-to-read, color-changing sensors
Scientists at Pritzker Molecular Engineering have developed a way to stretch and strain liquid crystals to generate different colors. (2020-07-10)

Looking at linkers helps to join the dots
Understanding the optimal process for fabricating coupled nanocrystal solids could help researchers to improve optoelectronics devices. (2020-07-09)

A safe and powerful safeguard for your whole body against deadly radiation
IBS scientists have reported a highly effective and safe nanocrystal to combat dangers doses of radiation by growing manganese oxide (Mn3O4) nanocrystals on top of the Cerium oxide (CeO2) nanocrystals. (2020-07-05)

Cellulose for manufacturing advanced materials
The last decade has seen an increase in scientific publications and patents on cellulose, the most abundant natural polymer. By reviewing these papers, a researcher in the UPV/EHU's Department of Graphic Design and Engineering Projects has explored the level of development of nanohybrid materials made from cellulose nanocrystals combined with organic and inorganic particles. The review focusses on manufacturing methods, types of nanohybrids created, and their applications. (2020-06-26)

3D X-ray reveals secrets from inside bones
An international team of researchers from Aarhus University, the European Synchotron (ESRF), Chalmers University and the Paul Scherrer Institute have uncovered a previously unknown substructure in bone tissue using a new X-ray technique to produce 3D images of the internal structure of bones. The discovery potentially questions fundamentally a number of the models of bone tissue and the mechanical properties of bones that, among other things, is used to describe the process of bone formation. (2020-06-15)

Spontaneous formation of nanoscale hollow structures could boost battery storage
An unexpected property of nanometer-scale antimony crystals -- the spontaneous formation of hollow structures -- could help give the next generation of lithium ion batteries higher energy density without reducing battery lifetime. The reversibly hollowing structures could allow lithium ion batteries to hold more energy and therefore provide more power between charges. (2020-06-08)

Russian scientists demonstrate ion implantation advantages for the use of silicon in optoelectronics
Silicon is the main material in electronic engineering. All information and computing technologies that play a key role in modern civilization are based on silicon: computers, communications, astronautics, biomedicine, robotics and much more. (2020-06-05)

Etching the road to a hydrogen economy using plasma jets
Hydrogen is a clean energy source that can be produced by splitting water molecules with light. However, it is currently impossible to achieve this on a large scale. In a recent breakthrough, scientists at Tokyo University of Science, Japan, developed a novel method that uses plasma discharge in solution to improve the performance of the photocatalyst in the water-splitting reaction. This opens doors to exploring a number of photocatalysts that can help scale-up this reaction. (2020-06-03)

Solar cells, phone displays and lighting could be transformed by nanocrystal assembly method
Smart phones, tablets and laptop displays, camera lenses, biosensing devices, integrated chips and solar photovoltaic cells are among the applications that could stand to benefit from an innovative method of nanocrystal assembly pioneered by Australian scientists from the ARC Centre of Excellence in Exciton Science. The researchers have used electrophoretic deposition (EPD) to demonstrate a highly efficient and controllable method to assemble single nanoparticles directly into a pre-patterned template. (2020-06-02)

Breaking down stubborn cellulose in time lapse
Researchers at Graz Unversity of Technology in Austria have for the first time ever succeeded in visualizing at the single-molecule level the processes involved in a biological nanomachine, known as the cellulosome, as it degrades crystalline cellulose. The fundamental insights thus obtained could support sustainable concepts of cellulose utilization to make a breakthrough in industrial biotechnology. (2020-05-25)

Efficient, 'green' quantum-dot solar cells exploit defects
Novel quantum dot solar cells developed at Los Alamos National Laboratory match the efficiency of existing quantum-dot based devices, but without lead or other toxic elements that most solar cells of this type rely on. (2020-05-18)

NMR confirms molecular switches retain function in 2D-array
Researchers led by Jiri Kaleta of IOCB Prague have synthesized regular 2D assemblies of isotopically labelled molecular switches and measured the properties of their isomerization, revealing that formation of such an assembly doesn't hamper the photochemical switching properties of the embedded molecules. The isotopic labels came into use when measuring the switching properties using an analytic technique dependent on the labels. The team published the results in the Journal of the American Chemical Society. (2020-05-13)

Antiferromagnetic fluoride nanocrystals
Recently, researchers from Peking University, Shenzhen University and National Institute for Materials Science (NIMS) report that the altered passivation of specified facets can direct the synthesis of fluoride nanocrystals into dimension-controlled products in a colloidal approach. An anomalous hysteretic behavior together with thermal dependent exchange anisotropy and high field irreversibility are detected, which are ascribed to the coexistence of long-range antiferromagnetic order and surface spin-glass like freezing. (2020-05-12)

Scientists develop stable luminescent composite material based on perovskite nanocrystals
An international team of scientists that includes researchers from ITMO University has developed a new composite material based on perovskite nanocrystals for the purpose of creating miniature light sources with improved output capacity. The results have been published in ChemNanoMat. (2020-04-27)

FSU researchers discover new structure for promising class of materials
Florida State researchers have published a new study in the journal Science Advances that explains how they created a hollow nanostructure for metal halide perovskites that would allow the material to emit a highly efficient blue light. (2020-04-24)

3D-printed corals provide more fertile ground for algae growth
Researchers have 3D-printed coral-inspired structures that are capable of growing dense populations of microscopic algae. The work could lead to the development of compact, more efficient bioreactors for producing algae-based biofuels, as well as new techniques to repair and restore coral reefs. (2020-04-09)

Tracking the atomic pathways by in-situ liquid cell TEM
Using the in-situ liquid cell transmission electron microscopy, the three-stage growth of Pt3Ni-Ni(OH)2 core-shell structures at the gas-liquid interfaces was clearly observed. Researchers also further observed the nucleation and growth of the Ni(OH)2 flakes on an existing layer either at the middle part or at the step edge. More interestingly, the dynamic transformation among a Pt3Ni alloy, Ni clusters and Ni(OH)2 flakes was also imaged even at a high electron dose rate. (2020-04-08)

Printing complex cellulose-based objects
Researchers from ETH Zurich and the Swiss Federal Laboratories for Materials Science and Technology (Empa) have set a new world record: they 3D printed complex objects with higher cellulose content than that of any other additively manufactured cellulose-based parts. To achieve this, they used a clever trick. (2020-03-25)

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