ACS Nano

Ammonia is a gas that plays a crucial role in agriculture and industry and has the potential to become a zero-carbon fuel for energy conversion and storage technologies. However, the current methods of producing ammonia are highly energy-intensive, contributing to approximately 1.8% of global CO2 emissions. By focusing on spinel cobalt oxides, a research team has revealed how understanding and optimizing these catalysts could offer a solution to this challenge.

Researchers at the Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, used high-speed atomic force microscopy to observe dynamic changes in AMPA receptors, which are vital for brain communication. Their findings, published in ACS Nano, reveal how these receptors adapt during signal transmission and suggest potential targets for neurological therapies.

Researchers at Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, IMDEA Nanoscience (Madrid, Spain) and CNB-CSIC (Madrid, Spain) report in ACS Nano experiments that reveal a cycle of conformational stages that recombinant Influenza A genomes pass through during RNA synthesis.

Researchers at the Institute of Industrial Science, The University of Tokyo implement a genetic algorithm to automatically design phononic crystals with desired vibrational properties, which may help with future computer and communication devices

- Professor Kyung-In Jang’s team from DGIST, in collaboration with Professor Taeho Park’s team from POSTECH, has developed a stretchable electronic device based on hybrid polymers. - The device maintains high mechanical stability even when it is severely bent or impacted, making it applicable in various industries such as displays, healthcare, and wearables. - Research results published in ACS Nano, the prestigious nanoscience journal.

Researchers from Osaka University probed the transit of cations across a nanopore membrane for the generation of osmotic energy. The team controlled the passage of cations across the membrane using a voltage applied to a gate electrode. This control allowed the cation-selective transport to be tuned from essentially zero to complete cation selectivity. The findings are expected to support the application of blue energy solutions for sustainable energy alternatives worldwide.

DGIST-Yonsei University-Korea University Collaborative research team has developed a suture-type electronic component that can wirelessly monitor vital signs in the body This new technology is expected to be easily applicable in orthopedic/medical rehabilitation, including personalized rehabilitation

- A joint research team of members from DGIST, UNIST, and Seoul National University have successfully developed an ultra-thin, high-performance photosensor based on eco-friendly quantum dots. - They have successfully implemented a wearable pulse sensor that works stably on the skin. - Results have been published in ACS Nano, one of the most

- Doctor Heo Su-jin and Professor Jang Jae-eun’s research team from DGIST developed an ultra-small nano vacuum tube transistor that stably operates in atmospheric pressure without being affected by extreme environments.

An international group of researchers have proposed a new mechanism to enhance short-wavelength light (100-300 nm) by second harmonic generation (SHG) in a two-dimensional, thin material composed entirely of commonplace elements.

- Team led by Professor Choi Hong-Soo at DGIST enhances the effects of magnetic hyperthermia and particle penetration into cancer cells through the chain disassembly mechanism of magnetic nanoparticles induced by magnetic fields and magnetic propulsion. - Expected to play a major role in targeted drug delivery for cancer treatment through research related to magnetic carriers. - The research findings have been published in ACS Nano, a top-tier journal in the field of materials science.

- Led by DGIST's Jiwoong Yang and Seoul National University's Jungwon Park, the team has determined the moisture-induced degradation mechanism of semiconductor nanocrystal quantum dots using in-situ liquid-phase transmission electron microscopy (TEM). - The research findings have been published in the online edition of the prestigious nanoscience journal "ACS Nano."

Researchers at Kanazawa University report in ACS Nano how ultrathin layers of tin disulfide can be used to accelerate the chemical reduction of carbon dioxide — a finding that is highly relevant for our quest towards a carbon-neutral society.

In a study recently published in the journal ACS Nano, published by American Chemical Society, researchers from Kanazawa University, Kanazawa, Japan, collaborating with University of Washington, Seattle, USA, used frequency modulated atomic force microscopy to reveal the molecular architecture of a genetically designed peptide and its self-organization that forms single-molecule thick crystals on atomically flat graphite surfaces, that offer a potential platform for hybrid technologies such as bioelectronics, biosensors, and protein arrays.

Researchers at Kanazawa University report in ACS Nano how high-speed atomic force microscopy can be used to study the biomolecular mechanisms underlying gene editing.

A research team led by the University of Hong Kong (HKU) and Lawrence Berkeley National Laboratory has invented an all-water robotic system that resolves the constraints of bio-inspired robots through revolutionary scientific advances.

Researchers from The Institute of Scientific and Industrial Research (SANKEN) at Osaka University and collaborating partners prepared hierarchical hydrogels and moldings that consisted of anisotropic, ecofriendly cellulose nanofibers. By simply tailoring the applied voltage during fabrication, complex architectures—such as microneedles and multilayer hydrogels—were easy to prepare. The results of this work will reduce the need for petroleum-based plastics, and in so doing minimize a long-standing source of environmentally persistent waste.

Researchers at Kanazawa University report in ACS Nano the development of a nanoparticle that acts as a heater and a thermometer. Inserting the nanoparticle in living cells results in a heat spot that, by switching it on and off, enables the controlled modulation of local cellular activities.

Researchers from DGIST explain how DNA is compacted to a million-times its full length in sperm cell nuclei

A surprisingly simple method improves ‘drop casting’ fabrication of tiled nanosheets that could be used in next-generation electronic devices. All you need is a pipette and a hotplate.

Scientists devise a 2D-material–based stacked structure with applications in reducing computing power consumption

Face masks have become an important tool in fighting against the COVID-19 pandemic. However, improper use or disposal of masks may lead to "secondary transmission". A research team from City University of Hong Kong (CityU) has successfully produced graphene masks with an anti-bacterial efficiency of 80%, which can be enhanced to almost 100% with exposure to sunlight for around 10 minutes. Initial tests also showed very promising results in the deactivation of two species of coronaviruses. The graphene masks are easily produced at low cost, and can help to resolve the problems of sourcing raw materials and disposing of non-biodegradable masks.

Researchers have found electrons that behave as if they have no mass, called Dirac electrons, in a compound used in rewritable discs, such as CDs and DVDs. The discovery of “massless” electrons in this phase-change material could lead to faster electronic devices.

Researchers at Kanazawa University report in ACS Nano a high-speed atomic-force microscopy study of the formation of protein fibrils (amyloids) associated with pathologies in collaborated research with Showa University. Mixing different variants of a single protein and changing the acidity of its environment is shown to result in significant variations in amyloid structure and elongation rates.

A recent study, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has presented a dynamic transport control mechanism for colloidal particles by developing a micro-/nanofluidic DP platform (MNDP).

An international team of researchers, affiliated with UNIST has paved the way for the development of next-generation batteries, targeting high-performance electric vehicles (EVs).

A technology that has maximized space intensity by eliminating color filter from an image sensor has been developed. The National Research Foundation of Korea (Chairman Jung Hye Rho) announced that DGIST Professor Dae Sung Chung’s research team developed a color filter-free full-color image sensor using an interferometer electrode.

Light focused into nano-grooves in a gold film bonded to an atomically thin crystal flake produces a remarkable frequency doubling effect.

Adding oxygen atoms to a perovskite-like crystal material splits it into layers, giving it unique electrical properties.

South Korea's Ulsan Nationl Institute of Science and Technology (UNIST) has presented novel catalyst to accelerate the commercialization of metal-air batteries.