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HKUST Scientists Achieve Breakthrough in Light Manipulation Using Gyromagnetic Zero-Index Metamaterials

The Hong Kong University of Science and Technology (HKUST)-led research team has adopted gyromagnetic double-zero-index metamaterials (GDZIMs) — a new optical extreme-parameter material – and developed a groundbreaking method to control light using GDZIMs. This discovery could revolutionize fields like optical communications, biomedical imaging, and nanotechnology, enabling advances in integrated photonic chips, high-fidelity optical communication, and quantum light sources.

Published in Nature, the study was co-led by Prof. CHAN Che-Ting, Interim Director of the HKUST Jockey Club Institute for Advanced Study and Chair Professor in the Department of Physics, and Dr. ZHANG Ruoyang, Visiting Scholar in the Department of Physics at HKUST.

Neighborly help in the brain: Cerebral cortex networks rapidly reorganize to compensate for lost neurons

How the brain largely maintains its function when neurons are lost—this is what researchers at the University Medical Center Mainz, the Frankfurt Institute for Advanced Studies (FIAS) and Hebrew University (Jerusalem) have deciphered. They show that neuronal networks in the cerebral cortex reorganize within a short period of time, with other nerve cells taking over the tasks of the lost neurons.

These findings could form the basis for future research into natural aging processes and neurodegenerative diseases such as Alzheimer’s or Parkinson’s. The study is published in the journal Nature Neuroscience.

Nerve cells (neurons) are the most important building blocks of the brain. They form the basis for all mental and physical functions such as thinking, feeling, movement, and perception. In the course of life, in the brain can be lost for various reasons: They die off due to age-related processes, are damaged by toxins such as alcohol, or neurodegenerative diseases such as Alzheimer’s and Parkinson’s lead to a more rapid progressive loss of neurons.

Scientists Discover Anti-Aging Molecules Hiding in Your Blood

Three newly identified indole metabolites from a blood-dwelling bacterium were found to reduce skin cell inflammation and aging markers, offering promise for future anti-aging treatments. People spend a lot of time and money trying to keep their skin looking young, using everything from creams an

A single enzymatic switch steers cell fate in intestinal regeneration

Memorial Sloan Kettering Cancer Center researchers have identified a metabolic switch that determines whether intestinal stem cells become absorptive or secretory cells. Manipulating the enzyme OGDH either fuels cell expansion or redirects fate, with potential consequences for colitis recovery and regenerative therapy.

Stem cells in the intestine maintain a delicate balance between self-renewal and differentiation, continuously replenishing the epithelial lining of the gut.

As they divide, some daughter cells become absorptive enterocytes that expand the surface for , while others branch into that manufacture mucus, antimicrobial peptides, and hormones essential for gut immunity. Injury and inflammation can tip this balance, depleting secretory lineages and disrupting tissue integrity.

Nanogrid drug delivery systems developed for precise lung inflammation treatment

Understanding how drug delivery systems distribute in vivo remains a major challenge in developing nanomedicines. Especially in the lung, the complex and dynamic microenvironment often limits the effectiveness of existing approaches.

“Structural pharmaceutics” has been introduced as a new strategy to connect nanoparticle structures with physiological structures through advanced three-dimensional (3D) imaging and cross-scale characterizations.

In a study published in ACS Nano, a team led by Yin Xianzhen from the Lingang Laboratory and Zhang Jiwen from the Shanghai Institute of Materia Medica of the Chinese Academy of Sciences developed a precise targeting strategy for tracheal inflammation.