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Science News for July 6, 2025


Facile method for carboxylic acid activation using inexpensive commercial organic photocatalysts

Researchers developed a facile hydrogen atom transfer method using xanthone as a promising ketone photocatalyst for activating carboxylic acids. The method generates minimal reaction waste and has broad applicability with over 40 examples. It also reveals a novel photocatalysis of ketones.

SourceHokkaido University·JournalJournal of the American Chemical Society·TypeExperimental study·DateJul 6, 2025

Low dose of hydroxychloroquine is associated with reduced COVID-19 mortality: A multicenter study in China

A multicenter study in China found that low-dose hydroxychloroquine (≤600 mg/day) is associated with reduced COVID-19 mortality among hospitalized patients, particularly those with severe illness. The study suggests that low-dose HCQ may confer mortality benefits while minimizing safety risks, supporting cautious use in severe cases.

SourceHigher Education Press·JournalFrontiers of Medicine·TypeExperimental study·DateJul 6, 2025

Exciting progress in ferroptosis-based nanomedicine for bladder cancer

Researchers develop self-assembling nanoparticles that induce ferroptosis in bladder cancer cells while reprogramming the tumor immune microenvironment, boosting anti-tumor activity. The nanomedicine has dual functions as a multifaceted approach to overcome treatment resistance and is Clinically translatable.

SourceResearch·JournalResearch·TypeExperimental study·DateJul 6, 2025

Single-cell transcriptome analyses of PBMCs reveal the immunological characteristics of individuals with phlegm-dampness constitution

Researchers analyzed PBMCs from individuals with phlegm-dampness constitution and non-Tanshi controls, identifying reduced MAIT cells and increased classical monocytes. Transcriptomic analyses revealed heightened inflammatory pathways, supporting the association between Tanshi constitution and metabolic syndrome.

SourceHigher Education Press·JournalFrontiers of Medicine·TypeExperimental study·DateJul 6, 2025

Topological spin textures from a very simple photonic crystal slab

Researchers introduce a novel method for generating topological optical textures using simple photonic crystal slabs, leveraging BICs to achieve alignment-free and high-fidelity topological light generation. This discovery paves the way for practical applications in communication, sensing, and data processing.

Novel neuron-like ferroelectric bioelectronics enable seamless integration and adaptive communication with neuronal networks

Researchers developed a novel neuron-like interface material and bioelectronic platform that enables seamless integration and adaptive communication with neural systems. The platform, termed ferroelectric bioelectronics (FerroE), integrates neuron-like flexibility, surface topography, and functional behaviors into a single system.

SourceShenzhen Institute of Advanced Technology, Chinese Academy of Sciences·JournalAdvanced Materials·TypeExperimental study·DateJul 6, 2025