Materials

Osaka Metropolitan University scientists synthesized a novel molecule by combining dynamic covalent reactions based on organic radicals and coordination reactions. They found that the two types of reactions do not inhibit each other. Their results suggest the possibility of synthesizing materials by combining different types of reactions, which is expected to lead to the construction of structures that have never existed before.

With the need for hardware to process large amounts of digital information ever growing, researchers are working hard to improve magnetoresistive devices. The magnetoresistance ratio indicates the efficiency of these devices, the higher the better. Most magnetoresistive devices comprise magnesium oxide and iron-based magnetic alloys. But a group of researchers from Tohoku University has unveiled a new material that also exhibits enormous magnetoresistance.

Researchers from Institute of Industrial Science, The University of Tokyo develop a nanosheet oxide semiconductor for electronic devices

Scientists from Thailand, France and Singapore have conducted groundbreaking research using both tiny cellulose nanofibers (CNF) and long pineapple leaf fibers (PALF) to create stronger materials. They added varying amounts of CNF to epoxy and found that 1% CNF greatly increased impact strength. PALF-epoxy composites showed significant flexibility and strength improvements. Combining CNF and PALF resulted in a remarkable increase in impact strength. The findings could revolutionize stronger material development.

Asia Research News monitors the latest research news in Asia. Some highlights that caught our attention this week are a species of eel that is slowly losing its eyes, a new space mission to give astronauts aboard the Tiangong space station a break, and how having more muscular legs can help avoid heart failure.

Researchers at Tohoku University and Tsinghua University have introduced a next-generation model membrane electrode that promises to revolutionize fundamental electrochemical research.

Graphene has revolutionized materials science since its discovery in 2004, with its high electron mobility, mechanical strength, and thermal conductivity. But processing graphene at the micro/nanoscale is a challenging process that often involves large-scale equipment and complex operations. Now, Tohoku University researchers have applied their simple femtosecond laser technique to ultra-thin atomic layers of graphene, resulting in multi-point hole drilling without damaging the graphene film.

A group of researchers from universities in Thailand and Malaysia have collaborated to develop a unique kind of film that is good for the environment and can decompose naturally. They made this film using leftover pineapple stems, which helps reduce the use of harmful plastic films. This new film has the potential to be used as packaging material, contributing to a more sustainable way of doing business and promoting a circular economy.

Two key challenges in chemistry innovation are solved simultaneously by exploring chemical opportunities with artificial intelligence.

With the use of electric vehicles and grid-scale energy storage systems on the rise, the need to explore alternatives to lithium-ion batteries has never been greater. Tohoku University researchers have recently developed a prototype calcium metal rechargeable battery capable of 500 cycles of repeated charge-discharge - the benchmark for practical use. The breakthrough was made thanks to the development of a copper sulfide nanoparticle/carbon composite cathode and a hydride-based electrolyte.

Specially coated surfaces help scientists investigate what happens when cell clusters are turned upside down.

An international research group has developed a new surface coating technology that is capable of significantly increasing electron emission in materials. Their breakthrough is expected to improve the production of high-efficiency electron sources, and lead to increased performances in electron microscopes, electron beam lithography systems, and synchrotron radiation facilities.

Zinc-air batteries may power the future thanks to their high density, low cost, and nature-friendly makeup. Yet, their low voltage has stymied their widespread application. Now, a research group has realized a zinc-air battery with an open circuit voltage of over 2 V.

Osaka Metropolitan University scientists elucidated the molecular structure of anionic Pt(0) complexes for the first time in collaboration with co-researchers at Paul Sabatier University - Toulouse III. The key to success is the stabilization of anionic Pt(0) complexes (which are usually unstable owing to their electron-donating nature) by the electron-accepting properties of boron compounds. The results of this research allow us to elucidate the properties and functions of highly active chemical species and provide new guidelines for their creation. The research is expected to lead to the development of innovative catalytic reactions mediated by these chemical species.

A joint research group at Osaka Metropolitan University has succeeded in regulating the flow of single molecules in solution by opening and closing the nanovalve mounted on the nanofluidic device by applying external pressure. The research group fabricated a device with a ribbon-like, thin, soft glass sheet on the top, and at the bottom a hard glass substrate having nanochannels and nanovalve seats. By applying external pressure to the soft glass sheet to open and close the valve, they succeeded in directly manipulating and controlling the flow of individual molecules in solution. They also observed an effect of fluorescence signal amplification when single fluorescent molecules are confined in the tiny nanospace inside the valve. The effect can be ascribed to the nanoconfinement, which suppresses the random motion of the molecules.

An Osaka Metropolitan University scientist published a review article on numerous asymmetric reactions using arynes, organized by style, and detailed their outline and characteristics. Unresolved issues and prospects in this field were also described.

Researchers from SANKEN (The Institute of Scientific and Industrial Research), at Osaka University designed a cellulose nanofiber paper (nanopaper) that can be used as a substrate for on-skin electronics. The porous structure of the nanopaper means that it can conform and adhere to the skin well enough for effective signal transfer and allows moisture to pass through for breathability and comfort. It is hoped that the nanopaper can soon be used to acquire electrophysiological data, such as ECGs in the clinic.

Transport relies heavily on steel. But steel is heavy, and scientists are turning to alternatives to lessen the transportation industry’s carbon emissions. Magnesium alloys are one such alternative. But developing bonding technology that bonds magnesium alloys with structural steels has been severely limited because magnesium and iron are immiscible. Yet, a research group from Tohoku University has established a dealloying bonding technology that obtains a strong mechanical bond between iron and magnesium.

We typically think of robots as metal objects, filled with motors and circuits. But the field of molecular robotics is starting to change that. Like the formation of complex living organisms, molecular robots derive their form and functionality from assembled molecules stored in a single unit, i.e., a body. Yet manufacturing this body at the microscopic level is an engineering nightmare. Now, a Tohoku University team has created a simple workaround.

A research group at Osaka Metropolitan University has succeeded in selectively recovering trace rare earth elements in synthetic seawater and environmental water, such as hot spring water, using baker’s yeast with a phosphate group added. The phosphorylated yeast is expected to be utilized as a material for recovering useful metals and removing toxic metals, thereby contributing to the realization of a metal resource-circulating society.

AI finds the first stars ✨were not alone, Auto-switch for large electronic devices, A metabolite against autoimmune diseases, & Converting fruit waste 🍊🍉into solar stills. Plus in our blog: A career worth doing, a life worth living. Read all in the latest Editor's Choice.

We sat down with Dr. Ji Ha Lee to get to know her and her work on developing recyclable and degradable gels that can replace plastics as well as nanogels that can help with targeted drug delivery.

An international team of scientists is helping to reduce carbon emissions into the atmosphere by exploring different natural fibres and blending the natural fibres in plastics to make light-weight and strong green composite materials for the construction and automotive industries.

A research group at Osaka Metropolitan University has succeeded in simply creating an artificial metalloenzyme with the common metal-binding motif 2-his-1-carboxylate, which is found in natural non-heme metalloenzymes. They created a library of 12 different proteins and screened the library and found that the H52A/H58E variant had the best stereoselectivity. It is expected that this research can be expanded to produce a variety of biocatalysts that work under mild conditions.

An Osaka Metropolitan University joint research group has discovered that near-infrared absorbing dyes, which had previously been considered to have closed-shell electronic structures, have an intermediate electronic structure, between closed- and open-shell structures. They also found that as the wavelength of near-infrared light that can be absorbed becomes longer the contribution of open-shell forms increases within the dye. These newly discovered characteristics are expected to be utilized to develop new near-infrared absorbing dyes that can absorb longer wavelength near-infrared light.

Scientists in Singapore converted fruit waste into a solar absorber called Mxene to develop an efficient and sustainable water desalination process.

A research team has highlighted recent achievements in antiferromagnetic spintronics in a review article, unearthing a new frontier in the field.

Scientists from Alliance University, Bangalore, Birla Institute of Technology Mesra, Inha University, Hanyang University, South Korea, and Newcastle University in Singapore have developed a new and straightforward approach to turn used COVID-19 facemasks into potential absorbent materials that can be employed for carbon capture from atmosphere.

An international interdisciplinary team of researchers hailed from India, Malaysia, Singapore and Thailand has successfully developed a method of using chitosan from terrestrial insects to manufacture eco‐friendly polymer composite parts using the 3D printing method.

Scientists restore impaired kidney for the first time, How fibre composite fails when wet, Cleaner fish recognize themselves in pictures 🖼️🐟& The source of black carbon in the sea. Read all in the latest Editor's Choice. Plus our magazine Asia Research News 2023 is out now 🎉!