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Science News for July 5, 2026


On-chip all-optical supernode for ultra-low-latency deep neural network inference

Researchers developed an on-chip all-optical supernode for ultra-low-latency deep neural network inference, achieving a 100-fold increase in inference speed while using only one-ninth of computing resources. The system supports high-speed data routing and switching with low loss and flat response over a spectral range exceeding 100 nm.

SourceScience China Press·JournalNational Science Review·TypeExperimental study·DateJul 5, 2026

New study links uterine ageing to poorer pregnancy outcomes after 49 despite donor eggs

A major new study suggests that age-related changes in the uterus may contribute to poorer pregnancy outcomes, with women aged 49 and over experiencing lower live birth rates and higher miscarriage risk despite donor-oocyte treatment. The study found that cumulative live birth rates declined substantially with age, from 80% among women...

Turning sugarcane bagasse into high-value dissolving pulp through a greener pulping route

A study has developed an integrated process to produce dissolving pulp from sugarcane bagasse using a carbonate-based oxygen-alkali pulping combined with enzymatic totally chlorine-free bleaching. The process resulted in high-quality pulp with improved properties, meeting industrial requirements.

SourceJournal of Bioresources and Bioproducts·JournalJournal of Bioresources and Bioproducts·TypeExperimental study·DateJul 5, 2026

Nature-based mental healthcare worth investment: study

A new study highlights the annual AU$7 trillion value of nature in mental health benefits and calls for urgent government action to expand access to nature as a frontline response to the worsening global mental health crisis. Regular, intentional exposure to natural environments is proposed as a proven yet underused solution to improvi...

SourceGriffith University·TypeMeta-analysis·DateJul 5, 2026

CityUHK researchers achieve first-ever recycling spin-triplet excitons for power generation, boosting organic photovoltaics efficiency to 20.5%

Researchers from CityUHK successfully recycle spin-triplet excitons, increasing power conversion efficiency in organic photovoltaics to 20.5%. By fine-tuning the side-chain structure and exciton delocalisation, they facilitate the dissociation of triplet excitons, paving the way for next-generation high-performance organic solar cells.

First experimental observation of three-dimensional photonic quantum Hall effect of Fermi arcs

Scientists at SUSTech and collaborators report first experimental observation of one-sided chiral hinge states in a 3D magnetic Weyl photonic crystal, verifying the 3D QHE of Fermi arcs. The discovery reveals a new physical mechanism for robust light transport in 3D space with potential applications in topological photonic devices.

SourceScience China Press·JournalNational Science Review·TypeExperimental study·DateJul 5, 2026

New approach boosts microplastic removal from wastewater

Researchers at RMIT University have developed a new method for removing microplastics from wastewater, achieving removal rates of more than 90% through the use of microbubbles and nanobubbles. The approach is simple to implement and significantly increases plastic removal during primary treatment.

SourceRMIT University·JournalACS ES&T Water·TypeExperimental study·DateJul 5, 2026