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11,854 articles

Science
Phys.org·

Researchers Reconstruct Calls of 165-Million-Year-Old Jurassic Insects

The sights and sounds of the Jurassic era are long gone, and we will never know for sure what that ancient world looked and sounded like. Fossils can offer clues, and reconstructions can give us a sense of the noises some animals might have made. Now scientists have turned their attention to insects and reconstructed the calls of Jurassic relatives of modern-day crickets and katydids (grasshopper-like insects).

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Science
Phys.org·

Hydrogel System Creates Programmable Environment for Blood Stem Cell Study

A research team from Tel Aviv University and the Leibniz Institute of Polymer Research Dresden (IPF), led by Ayala Lampel and Carsten Werner, has developed a peptide-glycosaminoglycan hydrogel system that creates a programmable niche for hematopoietic stem and progenitor cells (HSPCs). The system mimics key biochemical and mechanical cues of the bone marrow microenvironment, enabling researchers to investigate how these signals influence stem cell behavior.

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Science
Phys.org·

Acoustic Levitation Technique Achieves Six Times Greater Distance Than Previous Methods

Scientists have developed a new acoustic levitation technique using an ultrasonic beam capable of levitating and moving small objects in midair over distances of up to 40 cm (16 inches), six times farther than previously achieved using conventional methods. The study, carried out by a research team from the University of Tsukuba in Japan and the University of Bristol, was published in the journal Physical Review Letters.

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Science
Phys.org·

Engineered Nanoparticles Restore Neural Function in Alzheimer's Models

The adult human brain has limited capacity to repair or regenerate neurons lost to Alzheimer's disease, the most common type of dementia. Existing treatments can slow disease progression but do not reverse cognitive decline. In a study published in the journal Cell Biomaterials on Aug. 26, researchers show that engineered nanoparticles can not only regenerate neurons in human brain organoids but also restore neural circuits and improve cognition in mice.

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Science
Phys.org·

Quantum Entanglement Enables Detection of Single-Molecule Light Absorption

For decades, light has been used to understand the molecular structures of matter. A sample is irradiated with light, and measurements determine the wavelengths at which it is absorbed. Since each molecule absorbs light at very specific wavelengths that depend on its structure, the resulting absorption spectrum acts like a molecular fingerprint. For individual molecules, however, this signal is vanishingly small and mostly indistinguishable from noise.

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Science
Phys.org·

CRISPR Guide RNAs Show 93% Success Rate in E. coli, Researchers Identify Failures

Scientists at the Department of Energy (DOE)'s Oak Ridge National Laboratory (ORNL) have shown that more than 93% of possible E. coli CRISPR-Cas9 guide RNAs—molecules that direct the gene-editing CRISPR tool to the right spot in DNA—work as intended, a far higher percentage than researchers expected. They also discovered why a small number of guides fail and developed a simple way to repair them. The work is published in the journal Nucleic Acids Research.

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Science
Phys.org·

High Magnetic Fields Restore Superconductivity in Nickel-Based Materials

Scientists from the National University of Singapore (NUS), in collaboration with Los Alamos National Laboratory in the United States, have uncovered that a class of nickel-based materials known as samarium (Sm)-based infinite-layer nickelates can regain their superconducting ability under strong magnetic fields. This behavior could open a promising pathway toward superconducting technologies that can operate under extreme magnetic conditions.

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Science
Phys.org·

AI Platform Streamlines Materials Synthesis by Reducing Experimental Iterations

A research team led by Professor Sung Beom Cho of the School of Advanced Materials Science and Engineering at Sungkyunkwan University (SKKU), in collaboration with the teams of Professors Jin Sung Park and Hyunsouk Cho of Ajou University and Professor Ju Li of the Massachusetts Institute of Technology (MIT), has developed a "closed-loop materials synthesis planning platform" that uses a large language model (LLM) to propose synthesis conditions and procedures for complex new materials and iterat

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