Articles tagged with Biomedical Engineering
Researchers have developed custom 4D-printed implants that expand slowly and steadily, reducing the need for repeated injections and surgeries. The devices were tested in rabbits and showed promising results, including improved skin adaptation, reduced complications, and increased precision in reconstructive surgery.
A University of Michigan research team is exploring the development of knee exoskeletons to reduce joint contact forces and relieve osteoarthritis pain. Preliminary testing suggests that these orthotic brace-based exos and drone-style motors could provide significant relief.
Researchers at Institute of Science Tokyo genetically engineer cyanobacteria to produce sulfated polysaccharides, a sustainable route for manufacturing biomaterials. The study demonstrates the feasibility of engineering complex biosynthetic pathways in photosynthetic organisms.
Researchers developed a nanofiber drug delivery system that uses electrospun fiber membranes to deliver multiple drugs in concert, demonstrating improved efficacy against glioblastoma. The system enables localized long-term delivery of drugs directly at the tumor site after surgery.
Researchers from Zhejiang University present a comprehensive overview of stem cell-based strategies for treating traumatic brain injury. The study explores the therapeutic effects of stem cells, exosomes, and biomaterial scaffolds in promoting brain repair and functional recovery.
Researchers discovered acteoside alleviates hepatic ischemia-reperfusion injury through two mechanisms: inhibiting IRF1 nuclear translocation and promoting CMPK2 degradation. Acteoside reduces liver injury, serum ALT/AST, inflammatory infiltration, oxidative stress, and mtDNA release.
Researchers explore contrast-enhanced ultrasonography as a safer alternative to invasive hepatic venous pressure gradient for assessing portal hypertension. CEUS uses microbubble-based ultrasound contrast agents to track blood flow through the liver and surrounding vessels.
Researchers found that different types of tea create kombuchas with distinct chemical profiles, flavors, and aromas. Green and oolong teas produced kombuchas with high antioxidant activity, while black and pu-erh teas resulted in earthier flavors.
Researchers at Cincinnati Children's Hospital Medical Center have developed a new method to produce large, functional human gut organoids with nerve cells, growing them twice as fast as previous methods. These organoids can now be used for patching damage or restoring diminished functions of the small intestine, stomach, or colon.
Researchers identify conceptual weaknesses in established methods, suggesting targeted nerve and muscle activations for non-invasive electrostimulation. The study advocates for reconsidering high-frequency pulse usage to exhaust full potential for restoring motor function after paralysis.
A new study by the University of Southampton has found that reusable catheters are just as safe for patients as single-use ones and do not increase the risk of urinary tract infections. The study followed hundreds of patients for a year and discovered that those who tested reusable catheters used 35 per cent fewer antibiotics.
Paligenosis is a three-stage process involving autophagy, stemness gene induction, and proliferation. It ensures efficient regeneration in tissues like the stomach and pancreas, but its dysregulated activation can drive metaplasia and cancer. The review discusses biomarker prospects for distinguishing adaptive repair from malignant drift.
YTHDF2 plays critical roles in regulating HSC fate, immune cell development, and tumor-immune interactions. It also modulates the tumor microenvironment to promote tumor progression.
Researchers synthesized preclinical and clinical evidence of mRNA cancer vaccines across various cancers, including melanoma, non-small cell lung cancer, and acute myeloid leukemia. Key findings include improved recurrence-free survival in patients treated with mRNA-4157 plus pembrolizumab for melanoma.
Aging across the female reproductive tract is characterized by declining estrogen, cellular senescence, and chronic inflammation. Multi-omics datasets provide a powerful framework to measure biological age and reveal tissue-specific vulnerabilities.
H2AK119Ub is a versatile histone mark that organizes the genome into functional domains, orchestrates gene silencing, and maintains cell identities during development. Disruption of its signaling network is recognized as a driver of human diseases, particularly cancer.
Recent advancements in animal models, organoid models, and bioengineered organoids have provided new tools for studying primary sclerosing cholangitis. These models replicate the effects of bile retention and inflammation, enabling studies of disease mechanisms, drug screening, and preclinical evaluation.
A major new study has found that severe asthma patients are often battling other health conditions, with nearly all suffering from at least one major issue. The study identified three distinct profiles linked to how well asthma is controlled and the treatments needed, offering potential breakthroughs for improving care.
Lanthanide nanoprobes have improved signal-to-noise ratio, enabling ultrasensitive detection of cancer biomarkers and visual identification of cancer cells. The nanoparticles maintain stable luminescence across a wide pH range and in simulated human body fluids, ensuring reliable performance.
Researchers at Duke University developed a new approach to deliver GLP-1 medications orally that maintains efficacy without requiring fasting. The technique uses an elastin-like polypeptide-based delivery system that protects the peptide from stomach acid and releases it in the intestines, bypassing the stomach's destructive acids.
Researchers in Brazil's Cerrado biome found that reducing stream sampling from 11 to 6 transects maintained reliable classification of streams as least-disturbed, moderately disturbed, or severely disturbed. The study suggests a streamlined approach can reduce field time and processing costs while preserving ecological indicators.
The review outlines a comprehensive understanding of the chemokine and receptor network in the tumor microenvironment, introducing a novel 3D targeting framework to guide precision combination immunotherapies. The proposed
The study found that visual occlusion triggers brain compensation characterized by enhanced functional connectivity between the right precentral and middle frontal gyri. Walking activates multiple sensorimotor pathways to support basic locomotion, and visual occlusion further strengthens this connection as a compensatory mechanism.
High-altitude exposure disrupts the gut ecosystem, leading to dysbiosis, impaired barrier function, and increased intestinal permeability. The gut microbiome influences host energy metabolism, immune responses, and acclimatization capacity, and alterations are linked to diseases such as metabolic disorders and colorectal cancer.
Researchers found that smoking substantially stiffens human lung parenchyma, making breathing progressively difficult. The study provides detailed mechanical data for human lungs, which may improve ventilator design and surgical planning tools.
Researchers at Mizzou's Molecular Imaging and Theranostics Center developed an automated approach to producing the prostate cancer treatment. The new method produces CTT1403 in just 38 minutes, compared to six hours with traditional methods, using a commercially available automated synthesis system.
Researchers discovered that disrupted PTH1R signaling drives abnormal cementum growth and tooth-bone fusion in adult mice, leading to severe dental complications. The study identified the loss of PTH1R signaling as a critical molecular safeguard against excessive cementum formation.
A Spanish clinical trial demonstrates the potential of mesenchymal stem cells to reduce inflammation in Recessive Dystrophic Epidermolysis Bullosa (RDEB) patients, also known as 'butterfly skin'. The treatment showed improved symptoms like pruritus, sleep disturbances, and fatigue after receiving infusions.
The journal MedScience aims to integrate cutting-edge insights across medical sciences, focusing on emerging fields like cell therapy, AI-driven drug discovery, and precision medicine. This new platform serves as a dynamic hub for international academic exchange and translation of scientific breakthroughs into clinical practice.
Researchers developed a new class of stretchy bioelectronics that can stick to biological tissue and relieve hypertension while causing less damage to surrounding tissue. The CaroFlex device uses gentle electrical frequencies to modulate the baroreceptor reflex, providing effective treatment for drug-resistant hypertension.
Researchers discovered that sea squirts package adhesive materials into nanocondensates, which deliver them to the destination and unpack for use. This mechanism is distinct from mussels' adhesion strategy, providing clues for developing bio-adhesives to assist in seaweed cultivation.
This section explores how recognizing sex as a biological variable and gender as a sociocultural construct can lead to more precise computational models and safer medical technologies. The aim is to foster an equitable and effective biomedical engineering field where technologies meet the needs of all populations.
A new study published in the Chinese Neurosurgical Journal found that most basilar trunk artery aneurysms can be treated effectively using endovascular techniques, resulting in encouraging long-term recovery rates. However, larger aneurysms pose higher treatment risks and are associated with complications and poorer outcomes.
The PrecisionView device enables clinicians to visualize both subcellular structures and underlying blood vessels across large tissue areas without invasive biopsies. It generates detailed maps of tissue areas spanning several square centimeters and displays results in real-time.
Recent advances in medications, devices, and care pathways are redefining heart failure (HF) treatment. Emerging therapies beyond traditional EF silos have demonstrated broad efficacy across LVEF categories.
A new study by Technische Universität Berlin reveals that teaching Large Language Models to mimic human intuition and reasoning improves their ability to provide accurate medical care-seeking advice. The 'human reasoning blueprint' approach increased overall accuracy across all models, with significant gains in self-care advice.
Researchers create shape-morphing filaments using rotational multimaterial 3D printing, enabling programmable artificial muscles that bend and twist on demand. The breakthrough could accelerate the development of complex technologies such as soft robotics, energy damping, and biomedical devices.
Researchers developed a novel ratiometric SERS platform using dual bioprobes for stable detection of circulating tumor cells (CTCs). The platform achieved a low limit of detection, minimal relative standard deviation, and high cell viability, offering a new strategy for sensitive CTC detection.
Researchers describe how oral nanomaterial formulations overcome conventional drug limitations in gastrointestinal disease treatment. Non-metallic nanomaterials, such as selenium nanoparticles, show better biocompatibility and tunable biodegradability.
Baylor College of Medicine researchers found that the brain can process sound and language without conscious awareness, even under general anesthesia. Neural signals predicted upcoming words in a sentence, mirroring predictive behavior in artificial intelligence.
Researchers have developed a new class of biodegradable, all-metal microrobots that can penetrate tissue and deliver medications without causing damage. These microrobots demonstrate both strength and safety in testing on mice, paving the way for potential applications in drug delivery and biopsy procedures.
A new study published in Eye and Vision finds that one drop of low-dose atropine can produce daylong effects in managing myopia. The researchers found that the drop showed clear changes in pupil size and focusing ability, but no short-term structural effects on the eye.
Scientists have discovered a protective brain pathway that preserves dopamine-producing neurons and reduces degeneration in female models with Parkinson's disease. The study suggests that strengthening this pathway could help slow the progression of the disease, offering new potential for treatment.
Researchers identify mechanical stability as a crucial factor in antibody effectiveness against SARS-CoV-2. The study found that conventional antibodies distribute mechanical load unevenly and that viral mutations influence both binding affinity and mechanical resistance.
Researchers at Nagoya University have developed a new method called SMART that accelerates enzyme evolution and reduces costs by accelerating the selection period from weeks to days. The system uses mRNA display, next-generation sequencing, and bioinformatics to identify superior enzyme variants.
Artificial platelets have been developed that remain stable and effective after a year at room temperature and two months at high temperatures. This technology could enable direct injection of synthetic platelets into bone marrow to treat life-threatening bleeding in remote areas or disaster zones.
Researchers developed a new method to identify cellular features supporting metastatic cancer growth, revealing an unexpected driver of immune suppression in bone metastasis. Estrogen receptor alpha-activated macrophages play a key role in immunosuppression and tumor progression.
MIT researchers have developed an ultra-efficient microchip that can bring post-quantum cryptography techniques to wireless biomedical devices. The chip includes built-in protections against physical hacking attempts and is more than an order of magnitude more energy-efficient than prior designs.
Researchers have developed a universal toolkit for editing bacterial DNA in 15 diverse species, including human pathogens and fast-growing biotechnology organisms. The technology uses retrons, an immune system that produces DNA, to efficiently modify genes, with varying success rates across different species.
Researchers aim to determine the connection between circulating lipoprotein (a) and calcific aortic valve disease, with a focus on biomechanics and early detection. They will also explore how mechanical forces influence disease progression and treatment.
The new consensus statement provides updated guidance on CIED lead management, including extraction and management of traditional devices and newer technologies. The recommendations aim to reduce clinical challenges and morbidity within a rapidly evolving technological landscape, ensuring better quality of life for patients.
Researchers developed an AI-powered methodology to identify and count target viruses more efficiently than previous techniques. The new approach uses electrochemical impedance spectroscopy and machine learning to separate signals from noise, enabling quick and accurate readings across a wide range of titers.
Researchers discovered a biomarker that can predict disease progression and mortality in patients with severe heart failure. Mid-regional pro-adrenomedullin (MR-proADM) levels are associated with greater disease severity, mortality, and heart failure events.
A recent review highlights how AI enables precision treatment, continuous monitoring and individualized prognostic modeling for heart failure patients. AI integrates large-scale structured electronic health records and multimodal imaging to characterize cardiac structure and function, enhancing diagnostic accuracy.
Researchers at Kyoto University found that chaotic component of heartbeat variability is sensitive to cognitive brain activity, providing a new indicator of brain-heart interaction. Chaos-based measures revealed clear and reproducible changes associated with task engagement, contrasting with conventional HRV indices.
Researchers mapped how Sox9 guides cartilage formation in mouse embryonic limbs, finding that it dynamically targets different genes depending on developmental timing and cell type. The study provides a foundation for understanding skeletal development and may contribute to future research on bone and cartilage diseases.
Researchers develop a nature-inspired hybrid material that produces high-quality therapeutic proteins with nearly tenfold higher efficiency than traditional methods. The material's unique design enables it to adapt to different environments, alleviating hypoxic stress and activating cellular functions.
A research group developed an optimized signal transmission system for implantable medical devices, improving accuracy and strength of wireless signals. The approach uses ultra-wideband communication to coordinate multiple implants and reduce signal distortion, enabling more effective healthcare applications.
A University of Texas at Arlington researcher is leading a study investigating cardio-sarcopenia, the combined loss of heart and muscle health in aging adults. The grant aims to uncover how heart dysfunction and muscle loss interact and detect biomarkers for earlier intervention.
Researchers at University of Michigan created a stem cell model that produces a yolk-sac-like structure in a human embryo, mimicking early pregnancy loss. The model uses mechanical signals to guide development and does not require genetic manipulation.