Chemistry

Researchers from China engineered a system that captures carbon dioxide from seawater and converts it into biodegradable plastic precursors at high efficiency and low energy consumption.

Researchers from The University of Osaka have developed a polymeric adhesion system by introducing reversible bonds at the adhesion interface based on the formation and dissociation of host–guest complexes. The adhesive can be decomposed on demand using temperature or chemicals and reused multiple times. Visualization of the interface using neutrons revealed the mechanism underlying repeatable sticking and peeling. This technology can be used for sustainable material applications.

Researchers at Tohoku University have developed a multilayer cobalt catalyst that converts carbon dioxide into carbon monoxide with stable efficiency. The work highlights how data-driven design and molecular stacking can open new directions for carbon recycling.

Producing ammonia – a valuable chemical compound used in many fields – takes enormous amounts of energy. Researchers at Tohoku University have found a more efficient option that converts harmful pollutants in water to ammonia.

Researchers led by Professor Yi-Tsu Chan at National Taiwan University have created a giant molecular cage that mimics nature’s nested structures. This layered nanocage is remarkably stable and can serve as a miniature reactor for producing gold nanoparticles.

- A research team led by Professor Seongkyun Kim of the Department of Physics and Chemistry, DGIST, developed an artificial plant device that simulates plant transpiration - Purified more than 95% of soil contaminated by radioactive cesium within 20 days using solar energy alone

Researchers at the Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, report in ACS Nano, how proteins in cells can be controllably activated through heating, an effect that can be used to initiate programmed cell death.

Lithium batteries are widely used in electric vehicles and electronic products, but concerns are growing about their environmental impact during mining and disposal. Scholars from Lingnan University’s School of Interdisciplinary Studies and their collaborators have published a pioneering study online in top-tier, peer-reviewed, scientific journal Advanced Energy Materials. The study introduces a novel “anode-free sodium battery” that, by tuning the salt concentration in the electrolyte, reduces the risks of short circuits and shortened lifespan during fast charging. Laboratory tests have demonstrated that this new type of battery can be charged within minutes while maintaining safety and stability.

【Intriguing behavior of such electrons in particular materials produced by chemical synthesis】 Unpaired electrons located at linear band dispersion (LBD) are exceptional and called Dirac electrons (DE). They are paid attention to because of the unique electronic properties such as temperature (T)-independent resistivity, as if they belong to neither metallic nor non-metallic substances. In this study, we have developed a series of new organic Dirac electron systems and discovered universal features of magnetic behavior originating from LBD.

This promising new catalyst can speed up the oxygen evolution reaction to create clean energy.

- Achieved high-resolution quantum dot displays using photo-reactive materials and analyzed performance variations depending on the material - Developed a photoresist-free quantum dot patterning technique using a diazirine-based crosslinker - Research findings published in Nano Letters and ACS Nano

- DGIST research team led by Yoonhee Lee successfully fabricated CNT FET high-sensitivity biosensors based on surface tension-induced inkjet printing. - The new technology enables low-cost and large-area fabrication without complicated processes. - It is expected to contribute to fabricating next-generation, high-sensitivity biosensors.

- Development of a highly stretchable color conversion layer through direct cross-linking between eco-friendly quantum dots and stretchable polymers - Research findings published in Advanced Materials, a top-tier international journal in the field of materials science

Using optical tweezers, researchers at National Taiwan University observed individual binding events in real time, offering new insights into the molecular regulation of homologous recombination.

A metal-free organic liquid has been developed that phosphoresces at room temperature. Rapid phosphorescence endows the liquid with the highest phosphorescence efficiency in air among organic liquids. The new molecule has a 3-bromo-2-thienyl diketone backbone with attached dimethylocylsilyl (DMOS) groups. Attaching one DMOS group liquefies the backbone, whereas attaching two DMOS groups prevents molecular aggregation, which typically weakens phosphorescence. This new, flexible liquid can be applied to develop flexible electronic devices.

A customizable protein has been developed to help the body remove harmful cells, such as those involved in cancer or autoimmune diseases, offering a potential new direction for treatments.

To reduce plastic pollution and promote environmental sustainability, scholars from the Lingnan University School of Interdisciplinary Studies and their research team have developed a successful new eco-friendly bioplastic material. Unlike conventional plastics, it degrades naturally into harmless water and carbon dioxide in as little as 29 days under ambient conditions, and is a practical way to mitigate global plastic pollution. Their study, “Sustainable DNA-polysaccharide hydrogels as recyclable bioplastics”, was recently published in the respected journal Nature Communications.

This new crystal growth technology uses tungsten to create single crystals that can stand extreme temperatures - a new achievement in the field.

Researchers at Tohoku University have unified experimental and computational data into one valuable resource: a map that instantly guides scientists to suitable materials out of countless candidates.

The research team directed by H. Shimomoto and E. Ihara in Ehime University succeeded in preparing a new type of carbon-carbon main chain polymers, in which cyclic repeating units are densely incorporated around the carbon-based main chain. In addition, the team demonstrated the unique thermal behavior of the obtained polymers, compared to the corresponding polymers without cyclic structures. This achievement will contribute to the development of new functional polymer materials.

- Professor Youngu Lee’s team at DGIST develops a new hole transport layer material that dramatically enhances the efficiency and stability of QLED displays. - Using a high-binding-energy organic hole transport layer material, the team achieves 25.7% external quantum efficiency and improves device lifetime by 66 times.

Researchers at Tohoku University have created a new catalyst that can partly renew itself while working, opening possibilities for more durable materials in energy and chemical applications.

Recent research on fullerene’s role as a metal-free catalyst may redefine our understanding of how carbon nanomaterials can be used in clean energy technologies.

Professor Ogawa, Mr. Echigo (PhD student), and their colleagues in Kanazawa University report in Eur J Nucl Med Mol Imaging that combination of an At-211-labeled agent with immune checkpoint blockade significantly enhances its therapeutic effect. This strategy represents a promising advancement in the development of next-generation cancer therapies that combine targeted alpha therapy and immunotherapy.

Most currently used fuel cells can only operate efficiently above 500°C, but researchers found a way to essentially cut that number in half.

Researchers at The University of Osaka have discovered a new type of chiral symmetry breaking (CSB) in an organic crystalline compound. This phenomenon, involving a solid-state structural transition from an achiral to a chiral crystal, represents a significant advance in our understanding of chirality and offers a simplified model to study the origin of homochirality. This transformation also activates circularly polarized luminescence, enabling new optical materials with tunable light properties.

Researchers report a Cu-based catalyst on graphitic carbon nitride with tunable atomic configurations, revealing that intercalated Cu dual-atom selectively drives CO2 reduction to methane with 88% efficiency while single-atom and nanoparticle catalysts favor hydrogen evolution.

Researchers from The University of Osaka used electricity to drive a reaction to form a novel hetero[8]circulene consisting of five hexagons and three pentagons (called a dioxaza[8]circulene). The dioxaza[8]circulene is unsymmetrical, unlike existing hetero[8]circulenes. The novel molecule can be produced from commercially available materials by a two-step method that simultaneously forms six new bonds with only water as a byproduct. The dioxaza[8]circulene may have potential as a photocatalyst, and be used to speed up reactions triggered by light.

Whispers in the gut, "Memory foam" for space 🚀, Potassium power 🔋& Intelligent multitasking. Read all in the latest Editor's Choice

First direct observation of quantum Kelvin–Helmholtz instability reveals eccentric fractional skyrmions