https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Researchers at the University of Eastern Finland have uncovered two complementary mechanisms that govern coherence in miniaturized lasers composed of metallic nanoparticle arrays incorporated into an optical gain material, also known as plasmonic lattice lasers. https://phys.org/news/2026-09-dual-reveal-coherence-plasmonic-nanolasers.html Optics & Photonics Wed, 16 Sep 2026 10:40:01 EDT news708767282 Access to clean water depends not only on preventing pollution but also on being able to detect contaminants quickly and reliably. Among the pollutants of concern are metal ions such as mercury, lead and zinc, which can enter aquatic environments through industrial and other human activities. https://phys.org/news/2026-09-nanomaterials-method-metal-contamination.html Nanomaterials Mon, 14 Sep 2026 17:40:04 EDT news708620101 RhoBAST is a tiny RNA molecule that activates fluorescent dyes, enabling researchers to track RNA molecules in living cells with super-resolution. An international collaboration, which includes Ronald Micura and his team from the Institute of Organic Chemistry, has now shown that a small, local "nucleotide flip" within the RNA controls this fluorescence activation. https://phys.org/news/2026-09-rna-nucleotide-fluorescent-dyes.html Biochemistry Fri, 11 Sep 2026 20:00:04 EDT news708352516 Metallic nanostructures are exceptionally effective at concentrating light into tiny volumes, while dielectric nanostructures excel at storing light with minimal energy loss. Combining these complementary properties has traditionally required complicated hybrid structures in which the two optical modes become mixed, making them difficult to control independently. https://phys.org/news/2026-09-nanostructure-enables-independent-resonance-modes.html Nanophysics Fri, 11 Sep 2026 18:20:01 EDT news708353822 Researchers from the Institute of Microbiology of the Chinese Academy of Sciences (IMCAS) have characterized the structural and functional properties of the emerging SARS-CoV-2 sublineage BA.3.2.2 by studying RE.2.2, the lineage designation for the BA.3.2.2 branch gaining prevalence after prolonged low detection in European surveillance datasets. https://phys.org/news/2026-09-emerging-sars-cov-sublineage-re22.html Biotechnology Fri, 11 Sep 2026 17:20:01 EDT news708348902 For decades, physicists have searched for dark matter, the invisible substance thought to make up roughly 85% of all matter in the universe. Although its gravitational influence shapes galaxies and the large-scale structure of the cosmos, dark matter has never been directly detected. Now, an international team has identified a new class of quantum materials that could dramatically improve the search for some of the lightest and most elusive forms of dark matter. https://phys.org/news/2026-09-unconventional-quantum-materials-boost-dark.html General Physics Wed, 09 Sep 2026 19:20:04 EDT news708186498 Ohio University Distinguished Professor Alexander Govorov of the Department of Physics and Astronomy and the Nanoscale and Quantum Phenomena Institute (NQPI) in the College of Arts and Sciences has co-authored a new study published in Science Advances with collaborators at Wuhan University in China and the Istituto Italiano di Tecnologia in Italy. https://phys.org/news/2026-09-chiral-molecules-pharmaceuticals-biotechnology.html Optics & Photonics Wed, 02 Sep 2026 07:40:52 EDT news707553617 Researchers at Delft University of Technology have demonstrated for the first time that nano-antennas can enhance the fluorescence of proteins in living human and other mammalian cells. Scientists already use smart fluorescent proteins that light up when the electrical voltage across a nerve cell changes. By placing nano-antennas close to these light-emitting proteins, researchers can monitor processes inside cells with much greater precision. The discovery adds a new tool for revealing electrical signals in the brain through nanotechnology as well as genetic engineering. The research has been published in Advanced Materials. https://phys.org/news/2026-08-nano-antennas-cells-brighter-faster.html Bio & Medicine Fri, 28 Aug 2026 12:20:01 EDT news707135401 Self-assembling, anthracene-based supramolecular nanofibers can enable excitons to migrate hundreds of nanometers, according to a new experimental finding by researchers at Science Tokyo. Coupling these nanofibers with a plasmonic gold nanohole substrate further doubles exciton diffusivity. By mitigating the limited diffusivity of singlet excitons in organic semiconductors, this approach offers a new strategy for improving optoelectronic technologies. https://phys.org/news/2026-08-supramolecular-nanofibers-paired-nanohole-substrate.html Nanophysics Wed, 19 Aug 2026 19:40:01 EDT news706378622 Researchers at the 4th Physics Institute of the University of Stuttgart and the Istituto Italiano di Tecnologia (IIT) in Milan have demonstrated a new mechanism for directing light in a naturally hyperbolic van der Waals material without conventional nanofabricated waveguides. The discovery opens new possibilities for integrated photonics, on-chip optical communication and future quantum technologies. The paper is published in the journal Nature Nanotechnology. https://phys.org/news/2026-08-nano-optics-mechanism-channeling-natural.html Nanophysics Tue, 04 Aug 2026 14:40:03 EDT news705065941 An international team of researchers from École Polytechnique, Collège de France and Helmholtz-Zentrum Dresden-Rossendorf (HZDR) has achieved a world first: the experimental realization of an all-optical photonic time crystal (PTC), a material whose optical properties can be strongly and periodically modulated over ultrafast timescales. https://phys.org/news/2026-07-photonic-crystals-ultrafast-terahertz-range.html Optics & Photonics Thu, 30 Jul 2026 19:40:04 EDT news704645101 What if glowing molecules could synchronize, much like fireflies flashing in unison? Researchers have discovered that molecules confined within tiny gold nanostructures can behave collectively, coordinating their interactions even under conditions where this was previously thought impossible. The finding challenges long standing assumptions about how optical coherence forms and opens new possibilities for highly sensitive sensors, molecular photonics, and future quantum technologies capable of operating at room temperature. https://phys.org/news/2026-07-scientists-molecules-cooperate-room-temperature.html Nanophysics Thu, 30 Jul 2026 18:10:02 EDT news704649001 Plants need nitrogen fertilizers, which are usually ammonia-based. Ammonia is therefore one of the most important chemical products. However, its production is currently extremely energy-intensive. An international team from TU Wien and Soochow University in China has developed a novel catalyst that can convert nitrate from wastewater into ammonia much more efficiently than before—powered by sunlight and about 1.5 volts. https://phys.org/news/2026-07-gold-mxene-catalyst-nitrate-ammonia.html Analytical Chemistry Wed, 29 Jul 2026 15:00:08 EDT news704544061 Imagine a smart bandage that could continuously monitor an infected wound, alerting doctors when bacteria spread or when treatment begins to work. That vision is one step closer to reality with new research from Virginia Tech. https://phys.org/news/2026-07-nanoscale-sensor-personalized-medicine.html Bio & Medicine Tue, 28 Jul 2026 11:20:05 EDT news704450881 Photographs can reveal things that are otherwise impossible for the naked eye to see, be they distant galaxies or microscopic cells. Researchers at Osaka Metropolitan University have developed a practical and versatile imaging technique that makes another usually invisible phenomenon visible: surface plasmon polaritons (SPPs), light waves that travel along metal surfaces. https://phys.org/news/2026-07-quantum-dots-reveal-hidden-metal.html Nanophysics Fri, 24 Jul 2026 14:40:07 EDT news704113602 Many modern technologies, from optical communications and artificial intelligence (AI) hardware to advanced sensors and medical imaging, depend on photonic and semiconductor devices that precisely control the interaction between light and electrons. Designing these devices, however, remains a major challenge because existing simulation tools often require researchers to choose between modeling an entire device or capturing the detailed behavior of electrons. Few can do both within the same model. https://phys.org/news/2026-07-simulation-tool-generation-photonic-quantum.html Quantum Physics Wed, 22 Jul 2026 08:40:02 EDT news703923302 Proteins regulate a wide range of biological processes inside and outside cells by binding to specific molecular partners. In recent years, short peptides that can selectively recognize disease-related proteins have attracted attention as compact molecular tools for biosensors, diagnostic technologies, and drug discovery. However, how such small peptides recognize different proteins depending on their surrounding chemical environment has not yet been fully understood. https://phys.org/news/2026-07-natural-peptide-calmodulin-cancer-protein.html Molecular & Computational biology Thu, 16 Jul 2026 08:40:02 EDT news703407301 Quantum materials could transform technologies ranging from powerful computers and ultrasecure communications to advanced energy systems. But there has always been one major obstacle. https://phys.org/news/2026-07-physicists-room-temperature-quantum-material.html Quantum Physics Wed, 15 Jul 2026 11:00:35 EDT news703314539 The growing presence of nanoplastics in the environment has highlighted the need for simpler detection methods, leading researchers at Science Tokyo to develop a rapid biosensor for detecting polystyrene nanoparticles in water. Tested in both model water samples and real water samples spiked with polystyrene nanoparticles, the device detected 50 nm particles within 20 minutes without labeling or extensive sample preparation. The technology could support efforts to understand and address nanoplastic accumulation in the environment. https://phys.org/news/2026-07-biosensor-nanoplastics-minutes.html Analytical Chemistry Mon, 13 Jul 2026 10:40:01 EDT news703156071 Scientists have engineered a nanoscale switch using DNA "origami." Inspired by macroscale mechanical switches, the device achieves long-term functionality without the continuous forcing mechanism that past versions required while remaining capable of fast switching. The paper is published in the journal Science Robotics. https://phys.org/news/2026-07-dna-based-nanoswitch-flip-milliseconds.html Bio & Medicine Wed, 01 Jul 2026 14:40:09 EDT news702132276 Plants convert light into energy efficiently through photosynthesis—an ability that scientists and engineers still struggle to match with electronic devices. Recently, researchers have looked beyond traditional semiconductor materials to create devices using a promising class of materials called nanoplasmonics. These tiny metal structures can absorb and concentrate optical energy and generate energetic charge carriers. https://phys.org/news/2026-06-artificial-leaf-powers-wireless-biomedical.html Nanophysics Thu, 25 Jun 2026 12:00:03 EDT news701599443 How could we noninvasively distinguish between healthy and cancerous tissue? And how could we increase the speed of wireless communications? These two seemingly unrelated questions may share the same answer: terahertz (THz) light. Spanning frequencies between 0.3 and 20 THz, THz light interacts with matter without causing damage and allows for faster data transfer than radio waves. It is thus ideal for advancing many applications in biomedicine and telecommunications, for which simple yet sensitive and fast detectors are needed. https://phys.org/news/2026-06-graphene-plasmon-cavities-enable-advanced.html Optics & Photonics Tue, 23 Jun 2026 18:20:03 EDT news701446621 Researchers at European XFEL, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Rostock University and other collaborating institutions have used high-precision experiments to demonstrate that the most widely used models for the behavior of electrons in warm dense matter are inaccurate. Warm dense matter is challenging to study, but also is of key importance for a plethora of research, including the investigation of planetary interiors, materials science and laser fusion experiments. The study is published in Physical Review Letters. https://phys.org/news/2026-06-upends-beliefs-electrons-dense.html Plasma Physics Mon, 22 Jun 2026 18:20:06 EDT news701359922 Physicists from Emory University have led work to develop a microscopic, nonlinear light source that can be switched on, off or tuned to a particular intensity by an electrical "knob." The paper is published in the journal Optica, and could aid in the design of smaller, more flexible technologies for communications, sensing and quantum computing. https://phys.org/news/2026-05-electrical-knob-tune-intensity-nanoscale.html Optics & Photonics Thu, 28 May 2026 17:50:01 EDT news699207961 To capture a crisp image of a hummingbird in flight, which can flap its wings up to 200 times per second, a photographer needs a camera with an extremely fast shutter speed. But what if your target is smaller than a single chromosome and can travel at velocities approaching lightspeed? Conventional cameras, no matter how advanced, are limited by the nature of light. You would need a special device and an innovative method to film such a tiny, speedy subject. https://phys.org/news/2026-05-chemists-capture-hybrid-particles-distances.html Nanophysics Mon, 04 May 2026 15:40:09 EDT news697119482 Conventional spontaneous Raman spectroscopy of interfacial molecules typically requires plasmonic or electronic enhancement, limiting accessible systems. A nonlinear coherent Raman method now enables direct, high sensitivity detection without such requirements. https://phys.org/news/2026-04-optical-raman-ngstrm-scale-ultrathin.html Nanomaterials Thu, 30 Apr 2026 17:40:05 EDT news696785462 Researchers at Skoltech have developed an ultra-compact electro-optic modulator based on silicon photonics and plasmonics that enables high-efficiency optical signal control within a small device footprint. The development could find applications in optical communication systems, analog-to-digital conversion, as well as in devices for generating and processing ultra-high-frequency signals based on photonic technologies. https://phys.org/news/2026-04-team-modulator-compact-photonic-circuits.html Optics & Photonics Tue, 28 Apr 2026 19:20:03 EDT news696611379 Today, I want to walk you through a deceptively simple innovation from the lab at Loughborough University (PI: Prof Marco Peccianti): what happens when we decorate a spintronic heterostructure with a sparse layer of plasmonic nanoparticles? This isn't just a lab curiosity—it's a step toward making terahertz sources more efficient, compact, and practical for real-world applications like high-speed communications, noninvasive imaging, and advanced spectroscopy. https://phys.org/news/2026-04-sprinkling-nanoparticles-spintronics.html Condensed Matter Mon, 20 Apr 2026 18:00:06 EDT news695895133 Light, as we usually conceive of it, is defined by the astonishing velocity at which it moves from one point to another. For example, in just one second, light can travel most of the distance between Earth and the moon. This property is what makes light useful for communication, which we expect to happen at lightning speed in the modern age. https://phys.org/news/2026-04-gold-nanorod-struck-center-electron.html Nanophysics Mon, 13 Apr 2026 09:40:01 EDT news695289305 Recent advancements in nanophotonics are moving beyond isotropic noble metals to achieve dynamic and directional control over plasmons. Conventional localized surface plasmon resonances (LSPR) are limited by their isotropic permittivity and geometry-dependent resonance tuning. Introducing strong material anisotropy offers an effective alternative strategy, providing an additional degree of freedom for controlling plasmon propagation and confinement. https://phys.org/news/2026-03-anisotropic-2d-crystal-hyperbolic-localized.html Nanophysics Tue, 31 Mar 2026 17:00:06 EDT news694194841