Coordination nanosheets formed by coordination bonds between metal ions and planar organic molecules are widely utilized in diverse electronic and catalytic applications. In a new study, researchers from Tokyo University of Science (TUS), Japan, have developed coordination nanosheets in an ink-like form. By employing a single-phase reaction of nickel, copper, and zinc ions along with benzenehexathiol, they have demonstrated the selective and sequential synthesis of highly conductive coordination nanosheets.

A new recipe, or design guidelines, for self-strengthening muscle-like hydrogel has been developed through strategic integration of computational, information, and experimental research. The resulting gel exhibits rapid reinforcement under mechanical stress with improved stability.

The azuki bean beetle is a common pest of stored beans and peas. Researchers at Kyushu University have found that when beetles infected with Wolbachia bacteria are exposed to elevated temperature and carbon dioxide they tend to produce larger eggs to enhance the survivability of their offspring. Interestingly, these larger eggs gave rise only to male larvae.

The low body temperatures observed during hibernation are associated with lower metabolism. The conventional view in biology has been that body temperature is simply a consequence of metabolic activity, and that as metabolism lowers, body temperature decreases in parallel. Researchers recently discovered that low body temperature directly regulates glucose metabolism in hypothermic mice, challenging the theory of metabolic regulation of body temperature during hibernation and torpor, a less intense form of hibernation.

The decline in oral function can result in poor diet balance, affecting daily physical activities in older adults. However, its association with overall health remains unknown. To address this, researchers from Japan investigated the association between oral function and blood test results in older adults. The findings revealed that adults with blood test results outside the normal range had low oral function, indicating that poor oral health may increase the risk of developing lifestyle-related diseases.

While automatized vocabulary knowledge has been shown to strongly predict general listening ability, its role in speech production remains unknown. Now, researchers have compared conscious recognition of simple word meanings (declarative knowledge) with instant, automatic access to contextualized word meanings (automatized knowledge) in Japanese students learning English as a second language. The findings revealed that automatized vocabulary knowledge better predicts fluency, and practicing vocabulary in real-life contexts may help learners speak more smoothly and confidently.