Implantable Bioreactor for Kidney Cells
Researchers at the University of California San Francisco have developed an implantable bioreactor that may pave the way for artificial kidneys. Dialysis and kidney transplants both have significant disadvantages for patients with kidney failure, and so scientists are trying to develop a lab created kidney that would not require harsh immunosuppression or a donor kidney. This implantable bioreactor may be a step in the right direction, and it includes a type of cell found in the kidney which is protected from the immune system behind a silicon membrane. Blood can flow through the device, and so far the researchers have sho...
Source: Medgadget - September 26, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Medicine Surgery Urology artificial kidney UCSF Source Type: blogs
Virtual Reality Headset Takes EEG Measurements
Researchers at the University of Texas at Austin have developed an electroencephalogram (EEG) sensor that is incorporated into a virtual reality headset. The technology can measure brain activity while someone is undergoing an immersive virtual reality experience. The device may assist in enhancing medical virtual reality interventions, such as those used to treat post-traumatic stress disorder or phobias, by revealing brain activity during different tasks or experiences that help clinicians to tailor treatment plans to maximize efficacy. The electrodes are soft and spongy, which makes them comfortable against the head, an...
Source: Medgadget - September 26, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Diagnostics Neurology Source Type: blogs
Etched Nanopillars Kill Bacteria, Fungi on Titanium Implants
Researchers at RMIT in Australia have developed a drug-free approach to kill bacteria and fungi that can infect surfaces on medical implants. Such pathogens can cause serious and difficult-to-treat infections around medical implants, sometimes requiring the removal of the implant. In addition, many microbes are increasingly resistant to common antibiotics, highlighting the need for drug-free approaches. This new technique is inspired by the nanopillars present on dragonfly wings, which can skewer microbial cells, killing them. The researchers used a relatively simple plasma etching technique to create such nanopillars on t...
Source: Medgadget - September 20, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Materials Medicine Public Health Candida RMIT Source Type: blogs
Growth Factor-Loaded Microparticles Enhance 3D Bioprinted Muscle
Researchers at the Terasaki Institute in Los Angeles have developed a new method to create 3D printed muscle constructs with enhanced muscle cell alignment and maturation. The technique involves creating microparticles loaded with insulin-like growth factor (IGF) using a microfluidic platform. Then, these particles are included in a bioink that also incorporates myoblast cells and a gelatin-based hydrogel. Once 3D printed, the resulting constructs show enhanced cell growth, elongation, and alignment, and in some cases even began to spontaneously contract after a ten day incubation. The Terasaki researchers hope that their ...
Source: Medgadget - September 20, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Materials Rehab Surgery artificial muscle TerasakiInst Source Type: blogs
Battery Charged by Tears for Smart Contact Lenses
Researchers at Nanyang Technological University in Singapore have developed a tiny, flexible battery that is intended for use in smart contact lenses. The device is as thin as the human cornea and can be charged by a saline solution, which is particularly useful in the eye, as it is full of salty tears. When the battery-equipped smart lens is not in use, such as at night, then it can be stored in a saline solution, helping to further recharge the battery. The device avoids materials that could cause damage to the eye, such as metal electrodes, and works through a glucose oxidase coating that generates current when it react...
Source: Medgadget - September 19, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Materials Ophthalmology NTUsg Source Type: blogs
EEG Headset Could Spot Early Alzheimer ’s Disease
Researchers at the University of Colorado Anschutz Medical Campus have developed a technique that may spot the very early signs of Alzheimer’s disease, years before symptoms arise. The method may alert patients and clinicians to an increased risk of the disease, potentially allowing them to take steps to slow the disease progression. The method involves using a simple EEG headband while sleeping. The researchers have identified EEG signatures in aging adults that may indicate early Alzheimer’s pathology. These EEG phenomena relate to memory reactivation that occurs during sleep, and may reveal aspects of early-stage Al...
Source: Medgadget - September 19, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Diagnostics Neurology CUAnschutz CUSystem Source Type: blogs
Cells Release Insulin in Response to Music
Researchers at ETH Zurich have developed an insulin delivery system that relies on music as a trigger. The unusual technology is based on calcium ion channels that typically reside in the cell membrane. Such channels are sensitive to mechanical deformation and these researchers discovered that sound waves will activate the channels. When insulin-producing cells are genetically modified to express this channel, they will experience an influx in calcium ions when music is played close by, prompting them to release insulin. The concept could be useful as a treatment for diabetes, whereby such cells, housed in a specialized ca...
Source: Medgadget - September 19, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Genetics Medicine diabetes ETH Zurich Source Type: blogs
Brain Computer Interface Decodes Speech and Facial Expressions
Researchers at the University of California San Francisco have developed a brain computer interface that can lets someone with severe paralysis communicate with both speech and facial expressions, in the form of a digital avatar. The breakthrough advances what has been possible, with previous brain computer interface systems providing speech only, and allows people to communicate more completely, encompassing facial expressions, which are an important aspect of natural communication. The system includes electrodes that intercept brain signals that are intended for the muscles of the face, essentially decoding complex facia...
Source: Medgadget - September 14, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Neurology Neurosurgery Rehab brain computer interface UCSF Source Type: blogs
Highly Precise Pressure Sensor for Laparoscopic or Robotic Surgical Tools
Researchers at the National University of Singapore have developed a highly sensitive pressure sensor that can provide haptic feedback for surgeons using laparoscopic tools or for use in robotic grippers as part of robotic surgical systems. The technology is inspired by the surface of the lotus leaf, which is extremely sensitive to the pressure exerted by tiny drops of water and will repel them. This sensor is also highly sensitive, using an incorporated layer of air to detect tiny pressure changes, and a surface coating inside to reduce friction. Called “eAir”, the devices can also be highly miniaturized to just a few...
Source: Medgadget - September 14, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Materials Surgery NUSingapore Source Type: blogs
Microneedle Skin Patch Measures Cancer Biomarkers
Researchers at the Harvard Wyss Institute have developed a technique that lets clinicians to characterize and monitor melanoma. The system involves using a microneedle patch that can draw deep interstitial fluid into itself through a series of penetrating hyaluronic acid needles. The needles can later be dissolved to release the biomarkers into a test tube before analysis, using a highly sensitive technique called Simoa, to detect individual biomarker protein molecules. The Simoa method involves capturing these molecules using an antibody attached to a magnetic bead, which allows the researchers to use magnets to separate ...
Source: Medgadget - September 14, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Dermatology Diagnostics Medicine Oncology harvard wyssinstitute Source Type: blogs
Organoids Produce Tooth Enamel Proteins
Researchers at the University of Washington School of Medicine have developed a method to create stem cell-derived organoids that can produce tooth enamel proteins. The breakthrough could pave the way for lab grown enamel that can be used in dental repairs and may even allow for living fillings or completely new living teeth that can be implanted into a patient’s jaw. The researchers studied the genetic activity that occurs during tooth development, and then used this information to steer stem cells into becoming ameloblasts, which are the cell type responsible for enamel creation. Once present in organoids, the cells ca...
Source: Medgadget - September 12, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Dentistry Genetics Materials uwsomwwami Source Type: blogs
Enzyme Treatment Strips Mucins from Cancer Cells
Researchers at Stanford University have developed a new type of cancer therapy. The technology targets mucins, sugar-coated proteins that help cancer cells to metastasize and avoid the immune system. In particular, mucins enable cancer cells to survive free-floating as they travel through the blood during metastasis and can also trick immune cells into assuming that the cancer cell is not a threat. The new treatment involves combining an enzyme called mucinase with a cancer-specific nanobody that can bind to the cell surface, allowing the mucinase to destroy any mucins present. In tests with mice with simulated breast and ...
Source: Medgadget - September 12, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Medicine Oncology Source Type: blogs
Technique Creates Multilayered Tubular Cell Constructs
Researchers at the University of Edinburgh have developed a new method to create multilayered tubes from cells. The technique could be very useful for recreating multilayered tubular constructs that are found in the body, such as the intestines and blood vessels. Accurately modeling such complex structures in the lab could open new doors in terms of medical research and may even pave the way for bioengineered intestinal or vascular constructs that are suitable for implantation in human patients.
The method is called rotational internal flow layer engineering (RIFLE), and is low-cost, rapid and can be used to create cons...
Source: Medgadget - September 12, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Materials edinburghuni Source Type: blogs
CRISPR-Equipped Bacteria Detect Tumors
Researchers at the University of California San Diego have created a bacterial sentinel system that can alert clinicians to the presence of tumors. The technology takes advantage of the specificity of the CRISPR system and the tendency of bacteria to uptake fragments of DNA from their environment. Termed “Cellular Assay for Targeted CRISPR-discriminated Horizontal gene transfer” (CATCH), the system has been created to detect gastrointestinal tumors in its first iteration. This involves administering the CRISPR-enabled bacteria to the gut. The bacteria have been engineered to respond to DNA fragments that encode...
Source: Medgadget - September 7, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Diagnostics Genetics Oncology UCSD Source Type: blogs
Device for Rapid COVID-19 Breath Testing
Researchers at Washington University School of Medicine have developed a COVID-19 breathalyzer test. The technology requires someone to breathe into it just once or twice, and it can then provide an indication if the person is infected with SARS-CoV-2 in as little as one minute. The device could be very useful fo screening large numbers of people prior to access to an indoor event, for instance, or in community clinics to quickly determine if people are infected. Moreover, the technology could be adapted to detect other viruses, which may be useful for future outbreaks. The system involves blowing into a straw, which direc...
Source: Medgadget - September 7, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Diagnostics Medicine Public Health wustl WUSTLmed Source Type: blogs
