Articles tagged with Nanofibers
Researchers found that nanofibers coalesce irreversibly during water aerosol exposure, reducing effective fiber length for capturing aerosols. This study aims to improve design and use of face masks made with nanofibers, highlighting the need for frequent replacement in cold environments.
Pasquali proposes splitting hydrocarbons to produce clean hydrogen energy and solid carbon materials, which could replace materials with large carbon footprints. This transition would generate robust growth in manufacturing jobs and improve production efficiency.
A new thumb-sized device can diagnose bad breath by sniffing out hydrogen sulfide gas in exhalations, correctly identifying it 86% of the time. The device combines a metal oxide gas sensor with humidity, temperature and pressure sensors.
Researchers developed a stable performance electrospun nanofiber membrane to turn seawater into drinking water without wetting issues. The membrane can operate for 30 days with high salt rejection rates, making it suitable for long-term membrane distillation applications.
Biologists studied the impact of environmental factors on ultrathin nanofibers of biopolymers, finding that water absorption depends on polymer structure. The results show that biodegradable nanofibers with a crystalline structure are more resistant to decomposition by water and ozone.
Researchers at UC Riverside developed an implantable drug delivery system using piezoelectric nanofibers that can release therapeutic molecules on demand. The system offers robust control over release rate and precision in administering drug molecules, making it suitable for treating chronic diseases.
A nanofiber filter made from polymer nanothreads captured 99.9% of coronavirus aerosols in an experiment, surpassing the effectiveness of commercial masks and air filters. The production technique, electrospinning, is cost-effective and scalable.
A new hydrogel-based material has been developed that mimics the structure of a lobster's underbelly, exhibiting remarkable fatigue-resistance and stretch properties. The material's angled architecture is thought to hinder crack propagation, allowing it to withstand repeated stretches and strains without tearing.
Researchers at Duke University developed self-assembling nanofibers that activate key cells in the immune system to limit damaging inflammation. The nanofibers, which include a protein called C3dg, were shown to be effective in treating psoriasis and other inflammatory diseases.
Centrifugal multispinning technique offers safer and cost-effective mass production of high-performance polymer nanofibers. Researchers successfully fabricate face masks with comparable filtration performance to existing KF80 and KF94 masks.
A new cellulose nanofiber coating offers enhanced water resistance for flexible electronic devices, allowing them to withstand hundreds of bending cycles and underwater exposure. The coating's unique properties make it an ideal solution for medical devices used in emergency disaster response situations.
Researchers from Osaka University developed a nanocarbon material made from crab shells suitable for use in photosensing and energy storage devices. The material was created through simple pyrolysis of chitin nanofiber paper, demonstrating a sustainable and efficient method for producing renewable electronics.
Researchers at Hokkaido University have developed a technique to manipulate nanodiamonds with fluorescent centers using opposing lasers. This breakthrough enables the independent control of resonant and non-resonant nanodiamonds, which can be sorted based on their optical properties.
Researchers in Italy and UK developed an automatic process to assess nanofiber fabrication quality, achieving 92.5% accuracy. The new system reduces the need for human inspection and minimizes anomalies, improving uniformity and quality.
Researchers have developed ultra-absorptive nanofiber swabs that can absorb and release more viruses and biological specimens, improving the sensitivity of diagnostic tests. The new swabs detected SARS-CoV-2 at a 10-times lower concentration than traditional cotton or flocked swabs.
Researchers developed a bio-inspired hydrogel fiber with a spiral structure inspired by lotus fibers. The fiber exhibits high strength, toughness and excellent biocompatibility, making it suitable for surgical sutures.
Scientists at Osaka University create test to determine wood pulp quality by analyzing its optical birefringence, leading to clearer grading and utilization of renewable biomass. This innovation uses the intrinsic property of cellulose nanofibers to measure morphology change, enabling precise structure control.
Researchers at NUST MISIS develop nanocarbon additive from oil waste to improve aluminum 3D printing properties and create high-quality aerospace composites. The new technology reduces material porosity and increases hardness.
Osaka University researchers have developed a method to enhance the structural integrity of 3D-printed hydrogels containing cells using silk nanofibers. The fibers improve the mechanical properties of the bioink, allowing for more realistic organ printing and reducing cell damage.
A new study demonstrates the potential of an intranasal vaccine platform using self-assembling peptide nanofibers tagged with antigens, inducing an immune response and activating T cells without adjuvants. This technology offers a safer and more effective alternative for generating long-lasting immunity against diseases.
Researchers have developed a multifunctional nanofiber material that can protect wearers from both extreme temperatures and ballistic threats. The material combines the strength of woven fibers with the thermal insulation of porous aerogels, providing a lightweight solution for protecting extremities in explosive environments.
Researchers found that nanofiber masks can be reused up to 10 times after spraying ethanol, while melt-blown filters lose efficiency after cleaning. This process inhibits pathogens and maintains air filtration rate.
Researchers from Shinshu University found that nanofiber masks can withstand repeated sterilization and reuse without losing their filtration efficiency. The study compared the effects of ethanol disinfection on melt-blown and nanofiber filters, with the latter showing no significant decline in performance after multiple uses.
The new method transforms electrospun nanofibers into complex 3D shapes with controlled pore sizes, allowing cells to seed and penetrate, and exhibits superelasticity and shape recovery. The technique has significant potential for applications in tissue engineering, regenerative medicine, and tissue modeling.
Researchers created an artificial nonstick surface inspired by spider combs, reducing adhesive forces and handling synthetic nanomaterials. The nanostructure, patterned onto a foil surface, performed almost as well as the natural version in tests against spider silk.
Researchers at Shinshu University developed electrospun manuka honey nanofibrous wound dressings with antimicrobial properties. The composite mats demonstrated effectiveness against Gram-positive and Gram-negative bacterial strains, promoting wound healing and tissue regeneration.
A new sticker has been developed to indicate whether cold-chain food products have gone bad. The sticker changes color when exposed to room temperature, allowing users to determine if their food is spoiled. Its low manufacturing cost and flexibility make it suitable for widespread use in the fresh food delivery market.
Researchers at Yokohama National University have identified spent coffee grounds as a viable new source of cellulose nanofibers, which can be used to produce biodegradable plastic products. The extracted fibers displayed uniformity and integration with polymer resin, demonstrating their potential as a wood substitute.
MIT engineers create soft, flexible neural implants that can conform to the brain's contours and monitor activity over longer periods. The devices are made from a type of polymer that is electrically conductive and can be printed using a conventional 3D printer.
Researchers at OIST have created a new platform for quantum information processing using Rydberg atoms near nanometer-thin optical fibers. The ability to control these hyper-sensitive atoms could revolutionize material and drug discoveries and provide more secure quantum communication.
Scientists have created two-layered nanofibers consisting of an ordered row of alternating peptides and determined what drives their self-assembly. The discovery has potential biomedical applications due to the ability to tailor peptide structures.
The new method enables the creation of tall-and-narrow nanostructures with controllable dimensions, including transparent nanoelectrodes with high optical transmission and tunable conductivity. Researchers achieved this by adding 'table salt' to the polymer solution, improving electrostatic attraction between nanofibers.
Researchers developed a single-layer separator using bacterial cellulose nanofiber, achieving 80% capacity retention after 1,000 cycles. The new separator's cycle-life is superior to commercial multilayer separators with a more sustainable manufacturing process.
A Brazilian research group, supported by FAPESP, has developed a nanostructured titanium oxide material through electrospinning and atomic layer deposition. The material exhibits high surface area and reacts with UV light to degrade organic matter.
Researchers developed biomimetic hierarchical helical nanocomposite macrofibers with improved strength, elongation, and toughness. They used bacterial cellulose nanofibers and sodium alginate to create a new class of strong and tough nanocomposite fiber materials.
Researchers developed a simple method to fabricate superelastic hard carbon aerogels with nanofibrous network structure, exhibiting robust mechanical performances including super-elasticity, high strength, and low energy loss coefficient. The aerogel maintains super-elasticity in harsh conditions, such as liquid nitrogen.
A nanocomposite combining polymer nanofibers and boron nitride nanosheets offers high strength and superior thermal conduction, allowing it to withstand harsh environments. The material acts as an effective heat sink up to 250 degrees Celsius.
Researchers at Osaka University have measured cellulose's intrinsic birefringence with unprecedented precision, paving the way for sharper TV, computer, and smartphone screens. The team envisions using cellulose nanofiber films as light compensation materials for liquid crystal displays.
Researchers successfully connected two nanofiber cavity-QED systems over a distance of up to two meters, enabling reversible interaction between atoms and delocalized photons. The breakthrough paves the way for distributed quantum computing and quantum networks.
A team from Michigan Technological University has developed a new way to produce customizable nanofibers for growing cell cultures, cutting out the need for toxic solvents and chemicals. By varying electric field strengths, they can create different pocket sizes in the fibers, ideal for various cell types.
Researchers from NUST MISIS created a nanomaterial that enhances the rate of bone cell division by 3 times, enabling the growth of new bone tissue. This breakthrough could potentially abandon bone marrow transplantation, offering hope to patients with osteoporosis and osteomyelitis.
Researchers at Kobe University have successfully produced xylitol and cellulose nanofibers from Kraft pulp using a modified yeast strain that displays enzymes on its cell surface. This breakthrough reduces the need for costly commercial enzymes, making the process more cost-efficient and environmentally friendly.
Researchers created fermented milk products with bacterial films on nanofiber membranes, demonstrating improved probiotic survival and resistance to stomach digestion. The biofilms released live bacteria into the milk, allowing them to survive storage and transit.
Researchers used electrospun polymeric nanofibers to create drug delivery systems for various biological functions, including anti-inflammatory, anticancer, and cardiovascular applications. The method improves treatment processes by loading low-solubility drugs into fibers for controlled release.
Scientists at KIT have developed a simple and cost-effective method to create customized polymer nanofibers through vapor deposition of liquid crystal layers with reactive molecules. This process enables the creation of complex structures with tailored properties for various applications, including biological detectors and coatings.
Engineers at the University of Michigan developed a method to make arrays of nanofibers that can be sticky, repellant, insulating or light emitting. The discovery uses liquid crystals to guide the growth of curved fibers with well-defined lengths and diameters.
Materials engineers are developing environmentally friendly materials, including graphene-based nanofibers, for various applications such as environmental protection, agriculture, medicine, and clothing industry. These nanofibers offer unique properties like conductivity, strength, flexibility, and bio-basis, making them promising for ...
Researchers have developed a novel host material, nickel ferrite, to increase the volumetric capacity of lithium-sulfur batteries. The S/NiFe2O4 composite delivers an initial discharge capacity of 963.6 mAh/g and good cycle stability, outperforming sulfur-based composites with carbon hosts.
Researchers developed peptide-based nanofibers that target and remove cholesterol deposits from artery walls, reducing plaque burden by up to 11%. Preliminary results demonstrate the potential of non-invasive therapy to reverse atherosclerosis.
Researchers developed two nanofiber dressings that use naturally-occurring proteins to promote healing and regrow tissue. The dressings, inspired by fetal tissue and soy-based molecules, showed significant improvements in wound healing, including 84% tissue restoration within 20 days.
Researchers from MIPT studied a nanofibrous scaffold's interaction with rat cardiac cells, finding cardiomyocytes envelop fibers on all sides, while fibroblasts only touch one side. This study contributes to heart tissue regeneration and regenerative medicine.
The study investigates how chain conformation influences thermal conductivity in amorphous polymers, revealing that ultra-thin polymer nanofibers exhibit higher thermal conductivity due to aligned molecular chains. An empirical function is proposed to describe the diameter dependence of chain conformation.
Researchers created a synthetic material that combines the strengths of Kevlar with polyvinyl alcohol to mimic natural cartilage's properties. The new material boasts the same mechanism as natural cartilage, releasing water under stress and recovering by absorbing it later.
A new 3D-printed device produces nanofiber meshes with reduced variation in diameters, making it suitable for various applications such as tissue engineering, water filtration, and body armor. The device's design flexibility and fast iteration capabilities make it a promising technology for commercialization.
A Kyoto-Osaka team uses hiPSCs to develop biodegradable aligned nanofibers as a scaffold for culturing cardiomyocytes, forming robust and functional cardiac tissue-like constructs. These CTLCs show excellent operability leading to favorable heart function recovery in injured rat hearts.
Researchers at Cornell University have developed a novel electrode material that uses bacteria to clean pollutants from wastewater. The bacteria grow on the surface of the nanofibers, producing electricity and breaking down contaminants, making it a promising technology for improving wastewater treatment.
Researchers have developed ultralight ceramic nanofiber sponges that can maintain resilience after compressive strain up to 50% and withstand temperatures of up to 800 degrees Celsius. These sponges also show promise as insulating materials with flexibility and for water purification applications.
Researchers at Georgia Tech have developed a nanofiber catalyst that improves the efficiency of rechargeable batteries and hydrogen production. The new catalyst, made from double perovskite nanofibers, shows significantly enhanced oxygen evolution reaction capability compared to existing materials.
Harvard researchers developed a portable, handheld device to fabricate nanofibers with precise control over fiber orientation. The pull spinning method uses only one processing parameter to regulate nanofiber diameter, making it easy to use and flexible.
University of Wisconsin-Madison engineers create a cost-effective method to harness footstep energy using wood pulp cellulose nanofibers. The technology has the potential to rival solar power and provide renewable energy even on cloudy days.