Articles tagged with Hydrogels
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A new DNA hydrogel created by Cornell researchers exhibits unique properties, flowing like a liquid but returning to its original shape when placed in water. The material has potential applications in drug delivery and tissue rebuilding, with the ability to be formed into desired shapes.
MIT researchers have created a new type of injectable gel that can withstand mechanical stress and remain durable over time. The gel, made with protein hydrogels, forms a reinforcing network when heated to body temperature, making it more suitable for long-term drug release and tissue engineering applications.
Researchers at Rice University aim to inject scaffolds infused with living cells to repair damage inside tissues naturally. They plan to start trials of their dental hydrogel within two years, which could also be used for spinal cord regeneration and eye conditions.
A team of experts at Harvard created a hydrogel that can stretch to 21 times its original length, is self-healing, and exceptionally tough. The gel combines two weak polymers in an 8:1 ratio, forming a complex network that reinforces each other.
The researchers successfully packaged siRNA in a hydrogel complex that can be injected into target tissues, allowing for prolonged control over cell behavior. The technology has the potential to guide stem cells to grow into desired cell types, starve tumors by blocking blood vessel growth, and induce cancer cell death.
Scientists at Vienna University of Technology developed a method called 3D-photografting, which allows them to attach molecules at exact positions. This technique can be used to grow artificial biological tissue with specific inner structures and create tiny three-dimensional 'labs on a chip' for sensor technology.
Scientists have developed a spray-on coating made from chitosan that can delay the ripening of bananas. By slowing down respiration and killing bacteria, this coating can keep bananas fresh for almost two weeks. Researchers are now working on improving the coating to make it commercially viable.
Researchers from the University of Cambridge have developed injectable hydrogels that can deliver therapeutics for up to six months, doubling current maximum release time. These hydrogels contain proteins or other therapeutics and are capable of controlled release rate according to material ratio.
Researchers develop a new technique to predictably generate complex wavy shapes from hydrogels, which may help design more efficient drug-delivery systems. The technique uses an experimental setup that projects images onto a photosensitive hydrogel, causing it to assume the desired shape.
A team of UC San Diego bioengineers created a self-healing hydrogel that can bind in seconds and withstand repeated stretching. The material has numerous potential applications, including targeted drug delivery, industrial sealants, and self-healing plastics.
Researchers at Johns Hopkins University have developed a hydrogel treatment that promotes new blood vessel formation and tissue regeneration, yielding scar-free skin in mouse tissue tests. The treatment has the potential to greatly improve healing for injured soldiers, home fire victims, and others with third-degree burns.
Researchers at Purdue University have developed a new type of biological and chemical sensor using thin stripes of a gelatinous material called a hydrogel. The sensor is highly sensitive and can measure changes in pH smaller than one-1,000th on the scale, enabling environmental monitoring and glucose monitoring.
Researchers discovered a genetic material involved in regulating HDL cholesterol levels. A microRNA called miR-33a helps keep high-density lipoprotein stable, and inhibiting it may raise HDL levels. Additionally, biopolymer hydrogel injections improved heart function and quality of life in heart failure patients.
A Texas A&M chemical engineer has discovered a way to achieve more effective separation of DNA fragments using a hydrogel substance. The findings provide a rational approach to designing gels that can harness specific effects, leading to enhanced analysis in various fields.
Researchers have developed a functional implantable artificial salivary gland to treat xerostomia in cancer patients. The new treatment uses modified hydrogels to regenerate functional salivary acinar cells, restoring saliva production and improving oral health.
Researchers developed liposome-hydrogel hybrid nanoparticles that combine the strengths of both materials while compensating for their weaknesses. These nanoparticles have controlled release capabilities and can target specific cells, making them potential tools for targeted drug delivery.
Researchers at Georgia Tech have developed bioengineered hydrogels that induce significant vasculature growth in damaged tissue. The hydrogels release VEGF, stimulating blood vessel formation, and degrade in a controlled fashion, allowing for functional vascularization and integration with host circulatory system.
University of Wisconsin-Madison graduate student Jenna Eun's accidental photo 'Polymazing' won second place in the Science and Engineering Visualization Challenge, showcasing a surprising physical phenomenon that emerges in nature. The image, taken under a microscope, reveals how hydrogel absorbs water and causes a material to buckle.
Researchers at Carnegie Mellon University developed hydrogels that promote the growth of pre-osteoblast cells, aiding bone development. These gels interact with growth factors like demineralized bone matrix, providing scaffolding for bone cell proliferation and new tissue formation.
Researchers have developed a novel hydrogel system using multidomain peptides as a biomimetic scaffold, enabling the directed differentiation and function of dental stem cells for targeted dentin-pulp complex regeneration. The material provides high control over nanofiber architecture and better chemical functionality.
Biological chemist Jason Shear and his team developed a way to alter the shape and size of microscopic hydrogel structures by changing their environment's chemistry. This allows for precise control over cells, which can be used to study disease, understand quorum sensing, and create micro-devices.
Scientists at NIST have created a synthetic cartilage replacement that can withstand hundreds of pounds of pressure and is pliable like gelatin. The double-network hydrogels' unique structure helps dissipate deformation energy, allowing them to endure large deformations without breaking apart.
Researchers at the University of Delaware have developed a new biomaterial that can be injected into wounds to deliver targeted payloads of cells and antibiotics, enabling repair and regeneration of damaged tissue. The hydrogels also display antimicrobial properties, making them suitable for treating infections.
Researchers at Stanford University have created a novel biomimetic material called Duoptix TM that can be used to develop an artificial cornea. The hydrogel material is transparent, permeable to nutrients, and resistant to surface proteins and inflammation, making it suitable for surgical implantation.
Researchers have developed autonomous liquid microlenses that can adapt their focal length without external control. These smart lenses use hydrogels responding to physical, chemical or biological stimuli to enable new sensing methods in lab-on-a-chip environments and medical diagnostics.
Researchers developed a model system for studying neuro-vascular interactions, enabling the creation of stable vascular networks that can connect with larger blood vessel structures. The approach uses a macroporous hydrogel polymer scaffold and co-seeds it with endothelial cells and nerve progenitor cells.
A recent study published in Ophthalmology found that the risk of vision loss due to corneal infections among users of 30-day soft contact lenses is extremely low. The study, which involved 6,245 patients, reported an overall annual rate of evident corneal infection of 18 per 10,000.
Researchers at the University of Utah are developing a hydrogel that helps grow new tissue for repairing diseased organs. The gelatin-like substance, made from sugar chains, is essential for organ printing, which aims to print living, three-dimensional tissue for transplantation.
A study by the University of Manchester found that wearers who slept in hydrogel lenses were five times more likely to develop keratitis than those sleeping in silicone hydrogel lenses. Silicone hydrogels are now recommended as a safer option for extended wear.
A year-long study found that new generation silicone hydrogel lenses significantly reduce the risk of severe keratitis, a type of eye infection. Those wearing traditional hydrogel lenses were five times more likely to develop severe keratitis when sleeping in their lenses.
A new hydrogel sealant, made from biocompatible dendritic macromolecules and poly(ethylene glycol), seals corneal incisions more effectively than suturing or self-sealing, preventing infection and trauma.
A new hydrogel adhesive has shown promise in replacing sutures used for cataract surgery, demonstrating ease of use and reduced risk of complications. The transparent gel, similar to liquid bandages, could also be used to repair eye wounds associated with LASIK surgery and other conditions.
Scientists at Johns Hopkins University have developed a new biomaterial that can promote cell growth and differentiation, potentially aiding in the repair of human tissue. The self-assembling protein gel is made from genetically engineered modular proteins that can be mixed to create different types of hydrogels for specific applications.
Researchers at Georgia Tech have developed a method to create complex patterns in photonic crystals using hydrogel nanoparticles. The technique uses a photo-patterning method combined with self-assembly, allowing for the creation of optically transparent materials with unique properties.
Researchers develop new gel-like material that mimics natural lens properties, potentially treating cataracts and presbyopia. The material could be injectable, eliminating stitches in surgery.
Researchers developed a 3D biochip with tiny chemical reactor chambers and microfluidic delivery systems for growing cells and delivering chemicals. This technology enables high-throughput screening of hundreds of thousands of molecules while minimizing toxicity testing on animal models.
Researchers at Purdue University have developed a new gel-like material that can be used as a drug-delivery system, potentially replacing multiple daily medications with a single dose. The superporous hydrogels expand rapidly in the stomach, allowing medications to be absorbed more efficiently by the body.
Researchers have created biodegradable hydrogels that can deliver medications, anchor biological tissues, and even serve as gene therapy carriers. The new materials have controlled release profiles and can be tailored to suit specific medication needs.
A new sulfoxide hydrogel polymer enhances water levels in the eye while minimizing protein buildup, leading to softer lenses that are more comfortable and breathable. Clinical trials have begun for these innovative contact lenses, which could become available as early as next year.