Articles tagged with Hydrogels
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Functional hydrogel coatings have various functions, including sensing, actuation, drug delivery, and conductivity for neural electrodes. Research directions include optimizing coating methods for mass production, long-term stability, and testing adhesion.
Researchers have created a new composite hydrogel with tantalum particles that can effectively seal off damaged blood vessels, providing rapid and stable bleeding control. The gel exhibits shear-thinning capabilities, allowing for easy deployment using standard catheters.
Researchers at Texas A&M University have designed a hydrogel membrane with fine-toothed molecular combs that can prevent leakage of small molecules while allowing glucose to freely diffuse in and out. The membrane, made from poly(N-isopropylacrylamide), could be used to form biosensors for monitoring sugar levels in diabetics.
Researchers developed a potential new treatment for glaucoma using a natural, biodegradable hydrogel that opens an alternate pathway for excess fluid to leave the eye. The treatment could provide an efficient alternative to current treatments without daily drops or surgery.
TPU scientists have developed an eco-friendly hydrogel for agriculture that retains moisture and fertilizers in soil, degrading into non-toxic products. The new formulation uses natural components like whey protein and alginic acid, reducing the need for freshwater conservation and minimizing fertilizer's harmful effects on the soil.
Researchers have created a durable e-skin using hydrogel and MXene materials, enabling real-time sensing of temperature, touch, and pressure. The material can withstand up to 28 times its original size without losing functionality.
Researchers have created a bioactive plant-based nanocellulose hydrogel to support organoid growth for biomedical applications. The gel is cheaper than current gold standard options, cost-effective and animal-free.
Researchers have developed a contact lens that uses tiny channels to collect tears and measure biomarkers like sodium ions and glucose molecules. The lens can detect changes in tear pH and flow rates, offering a potential solution for preventing dry eye disease and monitoring diabetic patients.
Researchers designed a catapult-like hydrogel that can store and release elastic energy, achieving high contractile force and ultrahigh work density. The material overcomes mechanical weakness in traditional hydrogels, enabling controllable multistable deformation and programmable elasticity.
A team of scientists from the University of Leeds has developed a new hydrogel to act as an alternative to saliva without additional lipid content. The formulation can also replicate lubricating properties in food products, providing a potential solution for dry mouth therapy and non-obesogenic nutritional technologies.
Researchers at MIT developed a two-layered material that provides extended cooling using evaporation, inspired by camel fur. The system can keep perishable goods fresh for up to eight days and has potential applications in food packaging and pharmaceutical storage.
Scientists have developed a bilayer passive cooling technology inspired by camel fur, which can keep objects cool for an extended period of time without electricity. The technology demonstrates that the design keeps products cool five times longer than conventional single-layer approaches.
A team of researchers at the University of Pennsylvania School of Medicine has demonstrated a new method to rebuild complex body tissues using a magnetic field and hydrogels. This technique allows for the creation of engineered tissues with natural tissue-like properties, including a cellular gradient.
Researchers at Terasaki Institute create wearable pressure-sensitive devices using a gelatin-based hydrogel that offers superior elastic properties and skin compatibility. The device enables real-time monitoring of vital signs with high sensitivity and consistency.
Researchers designed hydrogels with self-renewing, lipid-based boundary layers, reducing friction by a near 100-fold. The approach maintains lubricity after drying and rehydration, opening potential applications in tissue engineering and biosensor development.
Researchers have created a stretchable conductive hydrogel that can help restore lost tissue in damaged nerves. The material, containing polyaniline and polyacrylamide, allows nerve cells to enter and adhere, helping to improve nerve conduction and recovery.
Researchers developed a polymer-nanoparticle hydrogel that allows sustained release of vaccine components, increasing potency and duration of immune responses in mice. The hydrogel boosts antibody production with a 1,000-fold higher affinity for antigens.
Scientists discovered that type-1 innate lymphoid cells (ILC1) promote tissue repair in the gut, but when dysregulated can contribute to IBD co-morbidities such as cancer and fibrosis. This finding has important implications for treating patients with inflammatory bowel diseases.
Researchers at UIC develop a unique method for precisely controlling the deposition of hydrogel to coax bone marrow stem cells into specialized cells. This technique allows for more accurate interactions between cells and their surroundings, potentially leading to breakthroughs in regenerative therapeutics.
Researchers develop a hydrogel-based delivery system that releases an anti-rejection drug slowly over time, providing enhanced protection for transplanted hearts. The system, called MTH, was shown to improve graft survival rates and reduce immune response.
Researchers have designed new hydrogels that can mimic the environment of lymph nodes, where T-cells proliferate and multiply. The hydrogels are made from polyethylene glycol and heparin, allowing them to anchor cytokines and promote cell migration and proliferation.
Scientists at Tokyo University of Science have created a novel alkaline hydrogel suitable for wound healing via a method requiring no special equipment. The gel forms in minutes and has high water content, making it ideal for wound dressing and promoting the growth of new cells.
QUT researchers develop a novel molecular coupling tool using green light and pH triggers, enabling catalyst-free chemical reactions. The tool has potential applications in drug delivery and 3D cell culture platforms, with the ability to control photoreactivity using varying pH levels.
Researchers propose a fast and catalyst-free cross-linking strategy for constructing mechanically strengthened and biofunctional hydrogels. The new method uses o-phthalaldehyde (OPA) and N-nucleophiles to form stable linkages, reducing toxicity issues associated with traditional methods.
Researchers developed a smart eyewear that tracks eye movement and cardiac data, providing accurate measurements in everyday environments. The device uses washable hydrogel electrodes and pulse sensors, offering comfort and durability, with potential applications in health monitoring, virtual reality, and advertising analysis.
Researchers from Rice University and Baylor College of Medicine have shown that shielding stem cells with a novel biomaterial can significantly enhance the healing process in rodents after heart attacks. The study demonstrated that shielded stem cells resulted in 2.5 times greater heart function recovery compared to non-shielded cells ...
A team at University of Toronto Engineering has developed a method to inject healthy cells into damaged eyes, showing promise for treating forms of vision loss. Co-injection of retinal pigmented epithelium and photoreceptor cells improved vision acuity in mouse model, with restored activity in dark chambers.
A new technology allows scientists to study the role of gut bacteria in health by taking samples anywhere in the gastrointestinal tract. The non-invasive tool, a drug-like capsule, can collect intestinal fluid containing bacteria and protect it for analysis.
A University of Sydney team has developed a plasma technology to attach hydrogels to polymeric materials, allowing for better interaction with surrounding tissue. The technology has shown promising results in tests using biomolecules found in the body.
Researchers at Hokkaido University developed a hydrogel that mimics the human brain's dynamic memory function, encoding information that fades with time depending on intensity. The hydrogel's memory system can be programmed by temperature and learning time, allowing for stable memory establishment and controlled forgetting processes.
Researchers at Lehigh University have developed a hydrogel material that can degrade and re-form in the stomach, protecting oral drugs from acidic environments. The gel, called covalent adaptable hydrogels (CAHs), could revolutionize oral drug delivery by targeting specific areas of the intestine.
A research group at Linköping University has developed a dynamic bioink that allows cells to survive and thrive during 3D printing. The bioink's properties can be modified as required, enabling the creation of tissue-mimicking materials with tailored functionalities.
Researchers at Duke University have created a cartilage-mimicking gel that is strong and durable, matching the properties of natural cartilage. The gel has been tested to withstand heavy loads and repeated stress without losing its shape or deteriorating over time.
A new study by the University of Tokyo reveals that cell-laden hydrogel fibers with a diameter of 1.0 mm provide long-term immunoprotection and functionality for pancreatic cells in diabetic mice, outperforming thinner fibers.
Researchers at ETH Zurich have developed a new method to distribute bioactive molecules in three-dimensional space, allowing them to guide the growth of nerve fibers and other biological processes. This innovation has potential benefits for medicine, including improving recovery from neural injuries.
Researchers have developed a hydrogel that can cool down electronic devices and convert waste heat into electricity, reducing overheating issues and increasing device efficiency. The new material, which is self-regenerating and safe for use, has shown promising results in cooling cell phone batteries during fast discharging.
Scientists create new scaffolds for joint tissue regeneration using a one-step process, successfully promoting healthy cartilage growth in human cells and mice. The technique overcomes limitations of existing methods, offering potential applications for drug delivery, diagnosis, and surface modification.
Researchers found that creating hydrogels at room temperature or below results in more robust materials. The findings could improve the 3D printing of biomaterials and enhance their performance in biomedical applications.
Researchers developed twin-chain hydrogels for cleaning artworks, improving efficacy on rough surfaces and reducing pigment loss. The new tool was successfully tested on Jackson Pollock paintings, demonstrating superior cleaning capabilities compared to conventional methods.
Scientists have developed a method to recharge bioelectronic implants wirelessly using soft and flexible materials that absorb sound waves. The new technology could minimize surgical treatments and improve patient comfort. Researchers have successfully demonstrated the concept by charging devices with ultrasonic energy.
Researchers have created a hydrogel that responds to optical stimuli and modifies the stimulus in response, trapping light within regions of the material. The discovery opens new pathways toward creating devices that aren't reliant on human control.
Researchers created 'active droplets' that release drugs at a constant rate over several days, reducing the risk of overdose. The droplets are stable for longer due to hydrolysis protection and can be loaded with varying doses.
A smart contact lens has been developed to monitor xerophthalmia and high intraocular pressure disease, providing real-time color changes based on moisture and pressure levels. The device features periodic nanostructures within a biocompatible hydrogel matrix, offering superior biosafety and comfort.
Researchers at MIT have developed a low-cost, disposable smart diaper that uses RFID technology to alert caregivers when a baby is wet. The sensor detects moisture and sends a signal to a nearby receiver, which can send a notification to a smartphone or computer.
A team of chemical engineers has developed a new way to produce medicines and chemicals on demand using portable biofactories embedded in water-based gels. The approach could help people in remote villages or on military missions access critical medicines and daily use chemicals.
Researchers at Texas A&M University have developed biodegradable hydrogels that create a fertile environment for bone stem cells to grow and proliferate. The study found that the space created by degrading hydrogels enables stem cells to thrive, remodel their local environment, and form intricate cellular networks.
Researchers from SUTD and NTU create a new method for reversible 4D printing using just two materials. The process uses heat to change the shape of the material, which can then revert back to its original shape without human intervention.
Researchers have introduced a gel that is activated by red light to produce reactive oxygen compounds effectively killing bacteria and fungi. The hydrogel combines photodynamic antimicrobial chemotherapy with fully synthetic properties, overcoming previous biocompatibility issues.
Researchers at Southeast University have developed a novel kind of microtort with stable structural color for multiplex assays. These micromotors can efficiently accelerate mixing speed and increase probe-target interactions, leading to faster and more sensitive detection. The unique structural color coding allows for simultaneous mult...
Researchers created a green living material that demonstrates similar strength to cement-based mortar by combining sand, bacteria, and hydrogel. The material reproduces and can be controlled to maintain structural function and microbial survivability.
Researchers have developed injectable hydrogels that can tune the body's inflammatory response, promoting or reducing inflammation as needed. The study found that positively charged hydrogels triggered stronger responses for wound-healing and cancer treatment, while negatively charged gels were better suited for drug delivery.
Researchers at Hokkaido University developed a hydrogel that stiffens 1,800-fold when exposed to heat, inspired by thermophilic proteins. The material, composed of polyelectrolyte poly(acrylic acid), transforms from soft to rigid upon heating and can be reversed with cooling.
The humidity digester, developed by Singapore researchers, can absorb more than four times its weight of water from humid air. It reduces relative humidity by 12 percent and generates a low current under ambient light, making it a potential replacement for air conditioners.
Researchers at Hokkaido University developed adhesives inspired by mussels that utilize electrostatic interactions to stick to negatively charged surfaces in saltwater. The adhesiveness was largely thanks to the interaction between positively charged residues on the polymers and the negatively charged surfaces.
Researchers at the University of Birmingham have developed a new 3D printing technique called Suspended Layer Additive Manufacturing (SLAM) that can create soft biomaterials for repairing body defects. The technique uses a polymer-based hydrogel with self-healing properties, allowing for precise detail and support without sagging.
Researchers develop a novel therapy to protect neurons and stimulate regrowth of blood vessels in damaged tissue. In preclinical trials, rats injected with the hydrogel retained more functioning neurons and formed new blood cells at the injury site.
A NYU Tandon-led team created a biocompatible protein-based drug delivery system that can survive in the body for over two weeks and provide sustained medication release. The thermo-responsive protein hydrogel exhibits properties similar to synthetic hydrogels but is more desirable for use in biomedicine.
Researchers create strain-accommodating smart skin that changes color in response to heat and sunlight, mimicking chameleon skin. The new material uses arrays of photonic crystals embedded in hydrogels to achieve color changes without buckling.
Researchers at Emory University have created a flexible smart skin that changes color in response to heat and sunlight without altering its size. This innovation uses photonic crystals to mimic the chameleon's natural ability, opening doors for applications in camouflage, chemical sensing, and anti-counterfeiting.
Researchers at MIT have designed a robotic thread that can navigate the brain's blood vessels using magnets, aiming to improve endovascular procedures for treating stroke and aneurysms. The thread can be functionalized to deliver drugs or break up blockages with laser light.