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. Cornell researchers have designed a new, faster form of two-photon fluorescence imaging for observing cell metabolism in real time, a method that could enable quicker screening of new therapeutic treatments. The findings were published Sept. 4 in Science Advances. The co-lead authors are former postdoctoral researcher Lu Ling, Ph.D. '20, and doctoral student Jack Crowley, M.S. '22. https://phys.org/news/2026-10-fluorescent-imaging-tracks-metabolism-cells.html Cell & Microbiology Fri, 09 Oct 2026 15:20:01 EDT news710767621 The toxin NheABC, produced by Bacillus cereus, is particularly active in the pH conditions found in open wounds. Researchers at Umeå University found that the toxin damages both cell membranes and mitochondria and helps the bacterium establish infection in wounded tissue. https://phys.org/news/2026-10-food-poisoning-bacterium-severe-wound.html Cell & Microbiology Fri, 02 Oct 2026 16:00:02 EDT news710165521 Extreme dry mouth, caused by radiation used to treat cancer and by autoimmune diseases such as Sjögren's disease, radically affects quality of life for sufferers. It can hamper speaking, swallowing and eating, and for years has seemed an intractable problem. https://phys.org/news/2026-10-salivary-gland-mini-grown-pluripotent.html Cell & Microbiology Thu, 01 Oct 2026 17:00:16 EDT news710077441 The development of treatment resistance is one of the key challenges in modern cancer and antibiotic therapy. New therapeutic approaches aim to curb the spread of resistance through the targeted timing of treatment cycles. https://phys.org/news/2026-09-treatment-resistant-cells-yeast.html Evolution Mon, 28 Sep 2026 10:40:05 EDT news709809902 Most primate species have relatively large brains with surfaces marked by pronounced bulges and furrows. This is not the case with common marmosets (Callithrix jacchus). The brains of these small monkeys are smooth and virtually unfolded. https://phys.org/news/2026-09-brain-organoids-uncover-primates.html Evolution Wed, 23 Sep 2026 14:00:20 EDT news709376401 Misophonia causes strong emotions in response to everyday sounds like chewing or sniffing. The condition often involves feelings of immediate distress or anger. This can be confusing and upsetting for children, adults and their families or friends. https://phys.org/news/2026-09-everyday-trigger-big-misophonia.html Social Sciences Wed, 23 Sep 2026 08:20:01 EDT news709367701 Researchers have developed an organoid-on-a-chip technology that verifies the efficacy of Parkinson's disease treatments in real time. The technology combines a stem cell–derived "mini-brain" with a nanoplasmonic sensor engineered to maximize light–matter interaction. https://phys.org/news/2026-09-gold-nanoplasmonic-chip-tracks-dopa.html Bio & Medicine Tue, 22 Sep 2026 12:00:04 EDT news709290021 Mitochondria—tiny structures that convert nutrients into energy—are often depicted as discrete kidney bean-shaped objects. But in reality, they form a dynamic, interconnected network throughout the entire cell, rapidly splitting and fusing as they're transported to where energy is needed most. https://phys.org/news/2026-09-virtual-cells-built-4d-ai.html Cell & Microbiology Sun, 20 Sep 2026 12:00:05 EDT news708876106 As an embryo develops from a small cluster of stem cells, those once "blank slate" cells begin to take on more specialized roles like brain, liver or muscle cells and organize themselves into three-dimensional structures such as tissues and organs. https://phys.org/news/2026-09-ai-decodes-cell-fingerprints-diverse.html Cell & Microbiology Tue, 08 Sep 2026 05:00:03 EDT news707993406 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. https://phys.org/news/2026-08-nanoparticles-neuroregeneration-alzheimer-disease.html Bio & Medicine Wed, 26 Aug 2026 11:00:16 EDT news706802041 Peppercorn-sized clumps of human brain cells grown in a lab for a record seven years aged similarly to those inside our heads, suggesting they "recorded the passage of time," scientists said Wednesday. https://phys.org/news/2026-08-oldest-human-brain-cells-grown.html Molecular & Computational biology Sun, 23 Aug 2026 13:00:02 EDT news706365161 The human brain is often described as one of the most complex structures in biology, and much of its power comes from how it's organized. Its outer layer, the cerebral cortex, is not one uniform sheet. As the brain develops, it divides into distinct areas that each take on different jobs, from movement and vision to memory, language and social understanding. https://phys.org/news/2026-08-lab-grown-brain-gain.html Cell & Microbiology Fri, 21 Aug 2026 11:00:08 EDT news706525561 A new genetic screening method allows researchers to efficiently modulate individual genes across entire tissues and provides new insights into human development. The research, published in eLife, is described as a landmark study by the journal's editors. They go on to say in their assessment of the work that "this technical tour de force is exceptional and one of the first studies to reveal new knowledge on human development through embryo models." https://phys.org/news/2026-07-unveils-genetic-screen-human.html Biotechnology Tue, 07 Jul 2026 14:20:11 EDT news702646951 An international team, including the University of Tokyo, has created a sensor inspired by the lateral line in fish—their "sixth sense" organ—which measures the pulse of lab-grown 3D heart tissue (cardiac organoids). The device, called a biomechanical well plate, looks like a small white box containing four liquid-filled wells. https://phys.org/news/2026-06-mini-artificial-heartbeat.html Biotechnology Sun, 05 Jul 2026 09:00:04 EDT news702009512 Human embryo models can help researchers study early human development and infertility without relying solely on human embryos. As the technology advances, these models are becoming more complex and can be maintained in culture for longer periods. These developments have raised new questions about how such research should be regulated. https://phys.org/news/2026-07-rethinking-human-embryo-japan-guidelines.html Cell & Microbiology Thu, 02 Jul 2026 11:00:01 EDT news702142741 Humans develop sharp vision during early fetal development thanks to an interplay between a vitamin A derivative and thyroid hormones in the retina, Johns Hopkins University scientists have found. The findings could upend decades of conventional understanding of how the eye grows light-sensing cells and could inform new research into treatments for macular degeneration, glaucoma, and other age-related vision disorders. Details of the study, which used lab-grown retinal tissue, are published today in Proceedings of the National Academy of Sciences. https://phys.org/news/2026-02-humans-sharp-vision-lab-grown.html Cell & Microbiology Fri, 13 Feb 2026 14:30:02 EST news690214638 The human kidney filters about a cup of blood every minute, removing waste, excess fluid, and toxins from it, while also regulating blood pressure, balancing important electrolytes, activating Vitamin D, and helping the body produce red blood cells. This broad range of functions is achieved in part via the kidney's complex organization. In its outer region, more than a million microscopic units, known as nephrons, filter blood, reabsorb necessary nutrients, and secrete waste in the form of urine. https://phys.org/news/2026-02-bioengineers-perfusable-kidney-ducts-3d.html Cell & Microbiology Mon, 09 Feb 2026 16:21:51 EST news689876461 Scientists at the University of Osaka have developed a novel hydrogel that enables the efficient, three-dimensional (3D) culture of human induced pluripotent stem cells (iPSCs). https://phys.org/news/2025-11-matrigel-hydrogel-3d-stem-cell.html Cell & Microbiology Wed, 12 Nov 2025 13:40:03 EST news682177201 This week, researchers reported the discovery of four Late Bronze Age stone megastructures likely used for trapping herds of wild animals. Physicists have proven that a central law of thermodynamics does not apply to atomic-scale objects that are linked via quantum correlation. And two Australian Ph.D. students coded a software solution for the James Webb Space Telescope's Aperture Masking Interferometer, which has been producing blurry images. https://phys.org/news/2025-10-saturday-citations-solution-universal-expansion.html Other Sat, 18 Oct 2025 09:00:02 EDT news679921929 Inside cells there are tiny particles, known as extracellular vesicles, that store and move molecules. Our cells naturally package beneficial proteins and healing compounds into these tiny bubbles, dispatching them to where they are needed to deliver molecular cargo or to communicate with other cells. https://phys.org/news/2025-09-bioreactors-yield-extracellular-vesicles-medicine.html Bio & Medicine Tue, 16 Sep 2025 13:30:18 EDT news677247964 European rabbits have plagued the Australian environment since 1859, when they were introduced to Australia near Geelong in Victoria. https://phys.org/news/2025-09-organoids-viral-rabbit-biocontrol-advancement.html Ecology Wed, 10 Sep 2025 09:48:06 EDT news676716482 Just a few weeks after conception, stem cells are already orchestrating the future structure of the human brain. A new Yale-led study shows that, early in development, molecular "traffic cops" known as morphogens regulate the activation of gene programs that initiate stem cells' differentiation into more specialized brain cells. https://phys.org/news/2025-05-morphogens-early-brain-stem-cell.html Cell & Microbiology Thu, 01 May 2025 14:11:04 EDT news665327461 The journal Advanced Materials recently published a study introducing a new method for monitoring molecular processes deep within tissue. Developed at the Technion–Israel Institute of Technology, the innovation is expected to accelerate key advancements in personalized medicine, cancer diagnosis, and early disease detection. https://phys.org/news/2025-03-insect-vision-noninvasive-method-deep.html Biotechnology Fri, 07 Mar 2025 04:29:36 EST news660544173 Metabolic imaging is a noninvasive method that enables clinicians and scientists to study living cells using laser light, which can help them assess disease progression and treatment responses. https://phys.org/news/2024-12-noninvasive-imaging-method-penetrate-deeper.html Cell & Microbiology Wed, 11 Dec 2024 14:00:01 EST news653131806 When a vertebrate embryo develops, a group of cells self-organizes into the neural tube, eventually becoming the brain and the spinal cord. This involves specific signals, but how these signals are interpreted by developing cells remains unclear. A team of researchers at the Institute of Science and Technology Austria (ISTA) now has more insights—thanks to miniature 2D organs and rubbery silicone molds. https://phys.org/news/2024-11-tissue-temporally.html Cell & Microbiology Wed, 27 Nov 2024 12:30:04 EST news651933001 Researchers from the Institute of Process Engineering (IPE) of the Chinese Academy of Sciences have recently developed a neotype lysosomal trap for clearing viruses and variants. This lysosomal "TRAP" (lysoTRAP) shows efficient viruses and variants infection inhibition potential in cell, mouse, hamster, and human lung organoid models. https://phys.org/news/2024-11-lysosomal-clearance-viruses-variants.html Biotechnology Tue, 26 Nov 2024 11:02:16 EST news651841329 A team of neurologists, bioengineers and radiologists has found that two neurons in the human brain that code for dopamine production have to work harder than similar cells in primate relatives. The group has posted a paper describing their work on the bioRxiv preprint server. https://phys.org/news/2024-11-human-brain-organelles-dopamine-neurons.html Evolution Mon, 18 Nov 2024 11:30:01 EST news651148682 Recent advances that have enabled the growth of tissue cultures into organoids and embryoids have heightened interest as to how tissue growth is controlled during the natural processes of embryo development. It is known that the diffusion of signaling molecules called morphogens directs patterned tissue growth, but what has been harder to understand is how the gradient of morphogens from this diffusion can lead to sharply defined domains in the resulting tissue. https://phys.org/news/2024-10-collaboration-tissues-sharply.html Cell & Microbiology Tue, 08 Oct 2024 10:55:04 EDT news647603702 Measuring and analyzing three-dimensional (3D) images of live cells and tissues is considered crucial in advanced fields of biology and medicine. Organoids, which are 3D structures that mimic organs, are particular examples that significantly benefit 3D live imaging. Organoids provide effective alternatives to animal testing in the drug development processes, and can rapidly determine personalized medicine. On the other hand, active research is ongoing to utilize organoids for organ replacement. https://phys.org/news/2024-08-paper-strategies-holotomography-advanced-bio.html Cell & Microbiology Tue, 27 Aug 2024 11:52:37 EDT news643978352 Researchers are expanding the possibilities of 3D printing to create miniature human organs and a variety of products made from living tissue, including food. https://phys.org/news/2024-08-3d-cells-pave-tomorrow-medicine.html Cell & Microbiology Mon, 26 Aug 2024 09:29:05 EDT news643883341