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Science News for September 20, 2026


Background-free quantitative phase imaging with adaptive-optics surface plasmon resonance holographic microscopy

Researchers propose adaptive optics-based surface plasmon resonance holographic microscopy for background-free quantitative phase imaging. The method eliminates wavefront aberrations and enables high-quality imaging of samples with dense cell layers, promising applications in biomedical and materials science.

Porphyrin-enhanced LiFePO4 cathodes combine high capacity with long-term stability

Researchers developed a redox-active ligand-stabilized LFP cathode integrating porphyrin molecules with nanoscale LFP, achieving high capacity and long-term stability. The cathode delivers approximately 260 mAh g−1 at 20 mA g−1 and retains 140 mAh g−1 at 2000 mA g−1, with nearly 100% Coulombic efficiency.

SourceShanghai Jiao Tong University Journal Center·JournalNano-Micro Letters·TypeNews article·DateSep 20, 2026

Optical singularity protractor for rotating metrology with neuromorphic sensing

A novel optical singularity protractor enables precise rotation sensing with neuromorphic sensing, overcoming limitations of traditional Doppler-based methods. The approach decodes rotational frequency shift by tracking phase singularity trajectories, achieving high-precision and robust performance in complex scenarios.

Einstein probe and LHAASO reveal a 42-light-year directed journey of cosmic rays

The joint observations from the Einstein Probe and LHAASO reveal a 42-light-year-long X-ray tail near a pulsar, tracing the long journey of high-energy cosmic particles. The tail's direction matches the ultrahigh-energy gamma-ray emission, indicating that particles do not immediately diffuse isotropically after leaving their source.

SourceChinese Academy of Sciences Headquarters·JournalScience China Physics Mechanics and Astronomy·DateSep 20, 2026

3D-printed honeycomb absorbers enable ultra-broadband electromagnetic shielding

Researchers developed a rheologically engineered 3D-printing strategy for highly loaded graphene/carbonyl iron composites, resulting in gradient honeycomb absorbers capable of ultra-broadband attenuation. The absorber achieves broadband absorption from 18 GHz to 4 THz with stable performance under various environmental conditions.

SourceShanghai Jiao Tong University Journal Center·JournalNano-Micro Letters·TypeNews article·DateSep 20, 2026

Molecular perovskite as a new platform for multicomponent energetic crystals

Molecular perovskite energetic materials have been developed as a new platform for multicomponent energetic crystals. The A-site can accommodate different organic cations, while the B-site and X-site can be replaced by different cations and energetic anions, allowing for the construction of diverse energetic crystals through component ...

SourceKeAi Communications Co., Ltd.·JournalEnergetic Materials Frontiers·DateSep 20, 2026

Surface charge-mediated heteroaggregation of chloropyromorphite with natural inorganic colloids: Mechanisms and remediation implications

Researchers found that montmorillonite inhibits chloropyromorphite aggregation by increasing negative surface charge, while goethite promotes rapid aggregation through charge neutralisation. Divalent calcium ions accelerate CPY settling through charge screening and cation bridging.

SourceKeAi Communications Co., Ltd.·JournalEnvironmental Surfaces and Interfaces·TypeExperimental study·DateSep 20, 2026

SNU professor Sang Woo Seo’s team boosts cell factory productivity by turning easily degraded MRNA into ‘rings’

The team's CRESEnT technology converts easily degraded mRNA into a circular form, increasing protein production and stability. This enhances the productivity of cell factories used to produce valuable compounds, such as biofuels and pharmaceutical ingredients.

SourceSeoul National University College of Engineering·JournalNucleic Acids Research·TypeExperimental study·DateSep 20, 2026

Flexible composite offers tritium containment and radiation shielding for fusion facilities

Researchers developed a flexible composite that can contain tritium and shield against nuclear radiation, offering a potential solution for radiation protection in future fusion facilities. The composite showed good resistance to thermal expansion, aging, and radiation, with effective shielding performance comparable to concrete.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalJournal of Materials Research and Technology·DateSep 20, 2026

Rainwater tanks may be harbouring hidden health risks

Researchers found Campylobacter, Salmonella, Shigella, and Pseudomonas aeruginosa bacteria in 13%, 10%, 3%, and 12% of tanks, respectively, with elevated metal levels detected in metal tanks and poorly maintained systems. Regular maintenance and proper handling of rainwater systems are crucial to ensure water quality and public health.

SourceAdelaide University·JournalJournal of Environmental Management·TypeExperimental study·DateSep 20, 2026

Personalized programs to prevent falls may make no difference: Cochrane review

A new Cochrane review suggests that personalized programs to prevent falls in older people may not be effective in reducing falls. The review found that multifactorial programs, which are tailored to individual risk, have little or no benefit in preventing falls compared to standard medical care, exercise, or falls prevention education.

SourceUniversity of Exeter·JournalCochrane Database of Systematic Reviews·TypeSystematic review·DateSep 20, 2026

Mifepristone more effective than other common emergency contraception methods

A new Cochrane review has found that emergency contraception containing mifepristone is more effective than other common methods, such as levonorgestrel, with fewer side effects. Mifepristone also showed a lower risk of nausea and vomiting compared to other methods, but a higher likelihood of delayed menstruation.

SourceCochrane·JournalCochrane Database of Systematic Reviews·TypeSystematic review·DateSep 20, 2026

Shoppers know fast fashion harms environment but keep buying: study

A new study from RMIT University suggests that environmental awareness alone may not stop people from buying ultra-fast fashion. Shoppers weigh sustainability against price and convenience, using budgets and careful planning to make purchases feel more acceptable. The study identifies two psychological patterns, strategic spontaneity a...

SourceRMIT University·JournalJournal of Global Fashion Marketing·TypeCase study·DateSep 20, 2026