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Science News for September 14, 2025


Dual structure reinforces interfacial polarized MXene/PVDF‑TrFE piezoelectric nanocomposite for pressure monitoring

Researchers developed a high-performance piezoelectric nanocomposite by engineering a dual-structure interface between MXene and PVDF-TrFE, achieving an eightfold increase in low-pressure sensitivity. The material can accurately detect and classify subtle physiological signals with up to 99% accuracy.

SourceShanghai Jiao Tong University Journal Center·JournalNano-Micro Letters·TypeExperimental study·DateSep 14, 2025

Study reveals how nitrogen atmosphere enhances performance of iron-biochar catalysts in wastewater treatment

Researchers found iron-biochar composites milled in a nitrogen atmosphere exhibit superior catalytic performance for degrading organic pollutants. The composite achieved a phenol removal rate of 90.3% when used to activate persulfate, outperforming those milled in air or vacuum.

SourceBiochar Editorial Office, Shenyang Agricultural University·JournalBiochar·TypeExperimental study·DateSep 14, 2025

Reliability assessment method of high grade steel large diameter natural gas transmission pipelines

A new reliability assessment method for high-grade steel large diameter gas pipelines considers correlations and nonlinear coupling effects among various types of defects. The method integrates multi-defect coupling analysis, enabling rational modeling of multi-defect dependency structures.

SourceKeAi Communications Co., Ltd.·JournalJournal of Pipeline Science and Engineering·TypeComputational simulation/modeling·DateSep 14, 2025

Shining a light on pre-menopausal female exercise science

A University of Otago study investigated the effects of post-exercise protein supplementation on pre-menopausal women, finding significant gains in strength and lean mass despite no differential IGF-1 response. The results suggest that protein supplementation can still be beneficial for women, particularly if their diet is suboptimal.

SourceUniversity of Otago·JournalNutrients·TypeExperimental study·DateSep 14, 2025

The Lancet Diabetes & Endocrinology: Higher doses of semaglutide can safely enhance weight loss and improve health for adults living with obesity, two new clinical trials confirm

Two large-scale clinical trials found that a higher dose of semaglutide significantly improves weight loss and related health outcomes in adults with obesity. The study revealed an average weight loss of nearly 19% in those receiving the higher dose, compared to 10% with the standard dose or placebo.

SourceThe Lancet·JournalThe Lancet Diabetes & Endocrinology·TypeRandomized controlled/clinical trial·DateSep 14, 2025

Gestational diabetes linked to cognitive decline in mothers and increased risk of developmental delays, ADHD and autism among children

A systematic review of over 9 million pregnancies found that gestational diabetes is associated with cognitive decline in mothers and an increased risk of neurodevelopmental disorders in children. Children born to mothers with gestational diabetes have a 36% higher risk of ADHD and a 56% higher risk of autism spectrum disorders compare...

Overweight and obesity don’t always increase the risk of an early death, Danish study finds

A Danish study found that individuals with a normal weight range (22.5-25 kg/m2) had the lowest mortality rate, followed by those in the overweight category. However, being underweight was associated with a significantly higher risk of death, while severe obesity was linked to a slightly increased risk. The study suggests that BMI may ...

Home training for cerebellar ataxias

Home high-intensity aerobic training outperforms home balance training in improving ataxia symptoms, fatigue, and aerobic fitness among those with cerebellar ataxias. Regular training maintained benefits at 1 year.

SourceJAMA Network·JournalJAMA Neurology·DateSep 14, 2025

Cannabis use associated with a quadrupling of risk of developing type 2 diabetes, finds study of over 4 million adults

A new study analyzing real-world data from over 4 million adults found that cannabis users face almost four times the risk of developing type 2 diabetes within five years compared to non-users. The study suggests that long-term metabolic effects of cannabis use may be linked to insulin resistance and unhealthy dietary behaviors.

Patients who had cataracts removed or their eyesight corrected with a new type of lens have good vision over all distances without spectacles

Patients who had cataract surgery or received a new type of lens for presbyopia correction have excellent vision over near, intermediate, and far distances without glasses. The study found that nearly all patients needed glasses 'none' or 'a little of the time' for distance and intermediate vision.