/ en-us Â鶹ÒùÔº internet news portal provides the latest news on science including: Â鶹ÒùÔºics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Collagen, a prevalent and predominant part of the structure of bodies, still has some mystique surrounding the finer aspects of its existence. In a new study, researchers look into the mechanism of orientation within collagen to elucidate some of the lesser-known aspects of this protein and how it can be used in future applications. /news/2025-05-3d-method-enables-fabrication-collagen.html Cell & Microbiology Biotechnology Wed, 14 May 2025 15:13:15 EDT news666454391 Bioengineers at Queen Mary University of London have taken a significant step forward in the development of laboratory-based models of human tissues that may be used as alternatives to animal testing. /news/2025-05-scientists-complexity-tissue-alternative-animals.html Cell & Microbiology Biotechnology Tue, 13 May 2025 11:27:04 EDT news666354421 When children lose their baby teeth, there is an adult set already growing beneath the gums, ready to emerge. But if we lose our permanent teeth, there aren't any more waiting in the wings. Right now, the options for replacing these lost teeth are either dentures or titanium implants, neither of which provide the same function and feedback as a real, living tooth. /news/2025-04-pigs-regrow-adult-teeth-humans.html Cell & Microbiology Biotechnology Fri, 25 Apr 2025 17:05:20 EDT news664819509 The sugar glucose, which is the main source of energy in almost every living cell, has been revealed in a Stanford Medicine study to also be a master regulator of tissue differentiation—the process by which stem cells give rise to specialized cells that make up all the body's tissues. /news/2025-03-glucose-life-reveals-role-master.html Cell & Microbiology Molecular & Computational biology Wed, 26 Mar 2025 12:02:00 EDT news662209316 The cells in human bodies are subject to both chemical and mechanical forces. But until recently, scientists have not understood much about how to manipulate the mechanical side of that equation. That's about to change. /news/2025-03-mechanical-encode-function-cells-fibrosis.html Cell & Microbiology Molecular & Computational biology Mon, 24 Mar 2025 14:16:04 EDT news662044561 How does the armored tiling on shark and ray cartilage maintain a continuous covering as the animals' skeletons expand during growth? /news/2025-03-stingrays-reveal-nature-elegant-solution.html Plants & Animals Molecular & Computational biology Tue, 18 Mar 2025 14:36:03 EDT news661527361 Xolography is a novel light printing technique that has been explored for dental products and in-space manufacturing. At Eindhoven University of Technology (TU/e), this technique has now been adapted to 3D print living cells. This research can pave the way for 3D-printed kidneys and muscle tissue. The team pioneered the Xolography-based method to produce tiny structures with features as small as 20 µm—approximately the size of a human cell. /news/2025-02-xolography-based-method-enables-3d.html Cell & Microbiology Biotechnology Thu, 27 Feb 2025 15:55:28 EST news659894124 Apical periodontitis, a chronic and hard-to-treat dental infection, affects more than half of the population worldwide and is the leading cause of tooth loss. Root canal is the standard treatment, but existing approaches to treat the infection have many limitations that can cause complications, leading to treatment failure. /news/2025-02-nanoparticles-treatment-root-canal-infection.html Bio & Medicine Nanomaterials Mon, 24 Feb 2025 12:31:04 EST news659622661 For many years, it was widely believed that fossils no longer contained any original organic molecules as the fossilization process was thought to destroy them. /news/2025-01-discovery-collagen-fossil-bone-insights.html Paleontology & Fossils Fri, 31 Jan 2025 11:38:04 EST news657545882 Hidden within our bones, marrow sustains life by producing billions of blood cells daily, from oxygen-carrying red cells to immune-boosting white cells. This vital function is often disrupted in cancer patients undergoing chemotherapy or radiation, which can damage the marrow and lead to dangerously low white cell counts, leaving patients vulnerable to infection. /news/2025-01-nature-blueprint-scientists-replicate-bone.html Cell & Microbiology Biotechnology Thu, 30 Jan 2025 08:57:07 EST news657449821 As astronauts venture further into space, their exposure to harmful radiation rises. Researchers from Columbia University are simulating the effects of space radiation here on Earth to determine its impact on human physiology using multi-organ tissue chips. Their work documents the differential effects seen in tissues after acute and prolonged radiation exposure and identifies multiple genes of interest that could help inform the development of future radioprotective agents. /news/2024-12-astronaut-chip-multi-tissue-chips.html Biotechnology Wed, 18 Dec 2024 16:17:02 EST news653761015 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. /news/2024-11-tissue-temporally.html Cell & Microbiology Molecular & Computational biology Wed, 27 Nov 2024 12:30:04 EST news651933001 The efficient use of cellulose—the primary plant scaffold and a major natural building block—could address many issues associated with petroleum-based polymers across various industries. In the search for more sustainable uses of cellulose, Lithuanian scientists have developed a production method for a nanofibrous cellulose matrix, which has the potential to replace non-renewable industrial even in biomedical applications. /news/2024-10-eco-friendly-nanofibrous-cellulose-matrix.html Bio & Medicine Nanomaterials Wed, 30 Oct 2024 15:09:04 EDT news649519741 Pioneer Fellow Hao Liu uses lasers to produce microfilament structures to grow biological tissue in the lab for research and medicine—from muscle tissue to cartilage. Now he's working to ready this technology for the market. /news/2024-10-biological-tissue-lab-lasers-microfilaments.html Cell & Microbiology Biotechnology Mon, 28 Oct 2024 16:14:04 EDT news649350841 A recent discovery has found a possible avenue to improve human health by better understanding how to engineer human stem cell differentiation. /news/2024-10-pathway-discovery-faster-reliable-human.html Cell & Microbiology Biotechnology Thu, 10 Oct 2024 16:25:26 EDT news647796322 Each year, about 2.2 million bone-grafting procedures are performed worldwide, the gold standard of care being autografting, which uses the patient's own bone for tooth implantation and to repair and reconstruct parts of the mouth, face and skull. /news/2024-09-bone-grafts-nanofibrous-scaffolds-main.html Bio & Medicine Thu, 26 Sep 2024 16:30:03 EDT news646587001 Scientists from Sun Yat-sen University's School of Biomedical Engineering have developed tubular scaffolds made from electrospun membranes, which significantly enhance bone regeneration in critical skull defects. /news/2024-09-tubular-scaffolds-boost-stem-cell.html Biochemistry Materials Science Thu, 12 Sep 2024 14:16:03 EDT news645369361 3D bioprinting is an advanced tissue engineering technique that builds complex tissues using bioactive substances like living cells and scaffolds. It provides personalized tissue repair solutions, reducing immune rejection by using patient-specific cells. Common-used 3D bioprinting materials include polycaprolactone (PCL) and poly lactic-co-glycolic acid (PLGA) for hard tissue and hydrogels for soft tissue. /news/2024-09-3d-bioprinting-materials-possibility-bone.html Analytical Chemistry Materials Science Mon, 02 Sep 2024 12:59:59 EDT news644500796 Researchers are exploring new nature-based solutions to stimulate skin and bone repair. /news/2024-07-silkworms-shrimp-regenerate-skin-bone.html Biotechnology Molecular & Computational biology Wed, 24 Jul 2024 12:47:39 EDT news641044055 Inspired by nature, the researchers developed a piezocatalytically-induced controlled mineralization strategy using piezoelectric polymer poly-L-lactic acid (PLLA) fibers with ordered micro-nano structures to prepare biomimetic tissue engineering scaffolds with a bone-like microenvironment (pcm-PLLA), in which PLLA-mediated piezoelectric catalysis promoted the in-situ polymerization of dopamine and subsequently regulated the controllable growth of hydroxyapatite crystals on the fiber surface. /news/2024-06-piezocatalytically-mineralization-scaffold-bone-microenvironment.html Bio & Medicine Wed, 12 Jun 2024 15:33:03 EDT news637425182 For centuries, civilizations have used naturally occurring, inorganic materials for their perceived healing properties. Egyptians thought green copper ore helped eye inflammation, the Chinese used cinnabar for heartburn, and Native Americans used clay to reduce soreness and inflammation. /news/2024-05-ancient-medicine-blends-modern-day.html Biotechnology Molecular & Computational biology Thu, 30 May 2024 11:10:48 EDT news636286244 Natural materials like bone, bird feathers and wood have an intelligent approach to physical stress distribution, despite their irregular architectures. However, the relationship between stress modulation and their structures has remained elusive. /news/2024-05-programmable-materials-broken-bones.html Analytical Chemistry Materials Science Tue, 21 May 2024 13:34:41 EDT news635517278 Medical implants could fail less often when coated with a microscopically crinkled, ceramic material designed by researchers at the University of Michigan. The coating is described in a paper published in ACS Applied Materials and Interfaces. /news/2024-04-crinkled-coatings-medical-implants.html Nanomaterials Wed, 24 Apr 2024 11:03:20 EDT news633175396 Researchers have created scaffolds with enhanced strength by fabricating 20 vol% polydopamine-modified nano hydroxyapatite (pDA-nHA), featuring a distinctive lamellar structure. These scaffolds were then immersed in a polyetherketoneketone (PEKK) synthesis system for reinforcement, offering an innovative approach to both augment the mechanical robustness of the material and enhance the bioactivity of PEKK. /news/2024-04-scientists-fabricate-composites-combine-high.html Polymers Materials Science Mon, 22 Apr 2024 17:33:02 EDT news633025981 The field of bone tissue engineering (BTE) is a promising avenue for addressing bone injuries and defects by constructing artificial scaffolds with bionic functionalities. Due to its unique 3D network structure, impressive mechanical properties, and excellent biocompatibility, bacterial cellulose (BC) has emerged as a captivating area of research in the realm of scaffold fabrication. /news/2024-04-scientists-maleic-acid-bacterial-cellulose.html Biochemistry Materials Science Mon, 15 Apr 2024 16:48:03 EDT news632418481 In a recent study published in Science Advances, researchers from Nanjing Drum Tower Hospital and others have unveiled a promising approach for treating osteoarthritis (OA) using engineered magnesium oxide (MgO) nanoparticles. /news/2024-03-mgo-nanoparticles-path-synergistic-cartilage.html Bio & Medicine Nanomaterials Thu, 14 Mar 2024 13:14:08 EDT news629640846 Fat tissue holds the key to 3D printing layered living skin and potentially hair follicles, according to researchers who recently harnessed fat cells and supporting structures from clinically procured human tissue to precisely correct injuries in rats. The advancement could have implications for reconstructive facial surgery and even hair growth treatments for humans. /news/2024-03-3d-skin-wounds-hair-follicle.html Cell & Microbiology Biotechnology Mon, 04 Mar 2024 06:54:07 EST news628757596 Hydrogels are versatile biomaterials conquering an increasing number of biomedical areas. Consisting of water-swollen molecular networks that can be tailored to mimic the mechanical and chemical features of various organs and tissues, they can interface within the body and on its outer surfaces without causing any damage to even the most delicate parts of the human anatomy. /news/2024-02-scientists-method-bond-hydrogels-polymeric.html Biochemistry Polymers Mon, 19 Feb 2024 15:00:01 EST news627557665 Scientists have combined laser 3D printing technology and an alternate soaking process to construct complex 3D structures that mimic bone microstructure. This is the first demonstration of this fabrication method, and it will lead to the development of 3D cell culture systems that can support bone grafts or create artificial bone marrow. /news/2024-02-team-fabrication-method-3d-mimic.html Biochemistry Polymers Mon, 12 Feb 2024 16:20:04 EST news626977201 Is it possible to grow tissue in the laboratory, for example to replace injured cartilage? At TU Wien (Vienna), an important step has now been taken toward creating replacement tissue in the lab—using a technique that differs significantly from other methods used around the world. The study is published in Acta Biomaterialia. /news/2024-02-approach-artificial-cartilage-3d.html Bio & Medicine Nanomaterials Mon, 12 Feb 2024 10:57:03 EST news626957821