Peer Reviewed

Med-DDPM, a diffusion model, generates high-resolution 3D brain MRIs from masks, addressing data scarcity and privacy concerns in medical imaging.

Researchers from Osaka University found that T cells recognize neoself-antigens––abnormal, unfolded host proteins presented by major histocompatibility complex II (MHC-II) lacking the invariant chain––as non-self antigens, leading to the development of autoimmunity. Reactivation of Epstein–Barr virus, a known risk factor for lupus onset and exacerbation, increases the presentation of neoself-antigens by MHC-II, which could help explain the link between viral infection and autoimmune disease.

A better understanding of how cells regulate their membranes could lead to new treatments for diseases such as epilepsy and anemia.

Mutant microalgae produce wax esters for biofuel feedstock with improved cold flow

Whether immunotherapy or conventional chemotherapy carries less mortality risk depends on BMI

Researchers from Osaka University created ‘smart’ microparticles that self-assemble in response to the addition of a specific molecule. This work can help explain the behavior of biomolecular complexes, as well as pave the way for novel polymers that respond to their environment.

Researchers from Osaka University fabricated copolymers with chiral backbones based on indacenodithiophene. Spin-coated films of the copolymers behaved differently toward currents with opposite polarization, resulting in chirality-induced spin selectivity. The magnitude of this selectivity was quantified as a spin polarization of almost 70%, which is among the highest achieved to date for a chiral polymer. These chiral copolymer films are attractive for use as spin filters in spintronics applications.

Cleaner wrasse check their body size before fights due to having their own mental representation

As global demand for clean energy solutions grows, the development of cost-effective and efficient catalysts will be pivotal in advancing renewable energy systems. Now, a group of researchers has made significant progress in this regard by employing chromium doping on transition metal hydroxides.

How can we make certain electrochemical reactions faster and more efficient? Researchers at Tohoku University investigated the use of Co X-ides for the electrocatalytic hydrogenation of quinoline.

Researchers from Monash University and Osaka University find that administering regulatory T cells (Tregs) to a tissue injury can promote healing. The team locally treated mouse bone, muscle, and skin injuries with Tregs, resulting in significant tissue regeneration and wound healing compared with control treatments. Mechanistically, Tregs can promote tissue monocyte and macrophage switching to an anti-inflammatory state, specifically by secreting signaling molecules like interleukin-10. These data demonstrate the strong potential of using Tregs as a cell-based therapy for regenerative medicine.

Ceramic-rich composite electrolytes: An overview of the paradigm shift from high-performance lithium metal batteries to solid-state electrolytes

Researchers from Osaka University have designed and synthesized a new organic semiconductor for organic solar cells (OSCs). By adding specific side units to their structure, they achieved separation between the frontier molecular orbitals, leading to lower exciton binding energy and increased power conversion efficiency. This tuning of the design of an acceptor component is expected to increase the performance of OSCs leading to more effective large-scale photovoltaic systems and new devices.

Studied oxidative stress and Parkinson’s disease as a case study

SUTD researchers delved into the lived experiences of Singaporeans including older adults to uncover key factors influencing their walking habits, which can guide urban planners in designing people-centric environments that promote active mobility.

Researchers at the Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, develop a biosensor that improves sensitivity to 1-methylnicotinamide (1-MNA) in urine by orders of magnitude without the need for sample purification.

Suppression of an enzyme might allow melanocytes to recover

Medaka fish that lacked functional Hmgn2 genes were unable to distinguish between simple shapes, revealing a new function for the regulatory gene.

New filter removes chemical contaminants from water even at very low concentrations

Dr. Chung-Che Wu, a Ph.D. graduate from the Department of Geosciences, National Taiwan University (NTU), along with Prof. Chuan-Chou Shen, the National Chair Professor, collaborating with an international research team from the Swiss Federal Institute of Technology (ETH), Switzerland, published a cutting-edge laser-ablation uranium-thorium dating (LA U-Th dating) technology in the prestigious journal "Analytical Chemistry" on August 6th (1) and was selected as one of the cover articles (Figure 1). This breakthrough technology improved LA U-Th dating limits to within tens of thousands of years, with the youngest geological samples dated to only a thousand years, making it the most advanced analytical technique internationally.

Researchers from Osaka University have identified key immune cells that respond to the COVID-19 mRNA vaccination. These cells, known as activated atypical B cells, are increased in blood samples from people who have been vaccinated against COVID-19. Additionally, people with higher levels of these cells have more antibodies to fight the COVID-19 virus. These findings should help researchers assess how well people respond to the vaccine and help improve the design of new vaccines.

A capacitor is like a highspeed battery that can quickly store and release energy. What happens when it becomes “super?” Researchers at Tohoku University have potential solutions to improve energy-efficiency.

Foaming plastic carriers creates uneven surfaces, more area for necessary microorganisms

Feeder-free induced pluripotent stem cells hold hope in therapies for cats’ chronic kidney disease

A study highlights that children with ADHD frequently experience sleep problems, potentially linked to lower levels of melatonin, a hormone crucial for regulating sleep. Genetic variations that reduce melatonin levels at night are associated with more severe ADHD symptoms in children aged 8-9. The research suggests that improving sleep habits, such as increasing morning sunlight exposure and reducing evening screen time, could help manage ADHD symptoms. This underscores the importance of addressing sleep issues as a possible way to alleviate ADHD symptoms in children.

Survey of 10,000 Japanese adults reveal leading causes of burp-related disorders

This study reports the first attempt to characterize the quality, defects, and strain of as-grown monolayer transition metal dichalcogenide (IMDC)-based 2D materials through exciton anisotropy. A standard ellipsometric parameter (Ψ) to observe anisotropic exciton behavior in monolayer 2D materials is used. According to the strong exciton effect from phonon-electron coupling processes, the change in the exciton in the Van Hove singularity is sensitive to lattice distortions such as defects and strain. In comparison with Raman spectroscopy, the variations in exciton anisotropy in Ψ are more sensitive for detecting slight changes in the quality and strain of monolayer MDC films. Moreover, the optical power requirement for TMDC characterization through exciton anisotropy in Ψ is ~10-5 mW·cm-2, which is significantly less than that of Raman spectroscopy (~106 mW·cm-2). The standard deviation of the signals varies with strain (defects) in Raman spectra and exciton anisotropies in Ψ are 0.700 (0.795) and 0.033 (0.073), indicating that exciton anisotropy is more sensitive to slight changes in the quality of monolayer TMDC films.

A research group including researchers from SANKEN (The Institute of Scientific and Industrial Research) at Osaka University has developed a safe, cost-effective, and environmentally-friendly method to synthesize sulfonyl fluorides. By reacting thiols and disulfides with SHC5® and potassium fluoride, they achieved a green synthesis process with non-toxic by-products. This method simplifies the production of sulfonyl fluorides, making it suitable for chemical and industrial applications, aligning with Sustainable Development Goals.

A re-analysis of early gas storage materials shows that they could adjust their shape to hold more gas, a property generally associated with newer, more advanced materials

Ammonia plays a vital role in food production, industrial development, and the emerging hydrogen economy. However, efficient synthesis methods are crucial since the conventional process is energy-intensive. An international group of researchers has focused on nitrate reduction, discovering a more efficient way to produce ammonia and unveiling new insights into sustainable catalytic processes.