Tag

Hydrogel

All articles tagged with #hydrogel

science12 days ago•6 min saved

Bio-Printed, Self-Healing Building Material That Grows and Captures Carbon

Scientists have created a 3D-printed hydrogel embedded with cyanobacteria that can grow, sequester CO2, and precipitate calcium carbonate to potentially reinforce structures. Lab data over 400 days show cumulative CO2 capture of 26 ± 7 mg per gram of hydrogel (with 2.2 ± 0.9 mg/g in the first 30 days); the material remains viable under light and nutrient conditions and can be printed for architectural scale. An installation at the Venice Biennale demonstrates the concept in practice, but the researchers caution that at current scales the climate impact is uncertain and long-term (decades) performance remains to be proven, with the material’s efficiency limited by light access and maintenance needs.

via The Daily Galaxy|

#3d-printing #carbon-sequestration #cyanobacteria

science1 month ago•5 min saved

One-Second Gel: Sprayable Powder Seals Wounds Fast

A KAIST team has developed AGCL, a sprayable powder that instantly gels on contact with blood to seal wounds in one second, outperforming current hemostats in mouse models, and offering durable, antibacterial, and tissue-healing benefits for battlefield and civilian use.

via Indian Defence Review|

#battlefield-medicine #hemostatic-powder #hydrogel

technology1 month ago•57 min saved

Low-Voltage 3D-Printed Hydrogel Cilia Deliver Millisecond, Programmable Micromotions

Researchers fabricate 2–10 μm-diameter, 18–90 μm-tall acrylic-acid-co-acrylamide hydrogel microcilia with nanometre-scale porosity using two-photon printing and surround them with microelectrodes. Under a 1.5 V field, ion migration within the hydrogel (H+ in DI water; Na+ in saline) drives rapid, millisecond bending, enabling 3D reprogrammable motions (bending and rotation) and controllable fluid flows. Demonstrations include scalable arrays (up to 25×25 cilia), metachronal-like coordination, and integration on flexible substrates, with durability up to 330,000 actuation cycles. The work promises advanced microscale fluid manipulation, microrobotics and bioinspired devices in complex ionic environments.

via Nature|

#electroactuation #hydrogel #microcilia

science-and-technology4 months ago•3 min saved

Scientists Develop Hydrogel Method to Grow Stronger Metals and Ceramics

Swiss researchers have developed a novel method of 'cultivating' metal by infusing a hydrogel framework with metal salts and chemically converting them into dense, high-strength metal structures, which are significantly stronger and less shrinkage-prone than traditional 3D printed metals, with promising applications in energy and biomedical fields.

via Good News Network|

#3d-printing #advanced-materials #energy-technology

science4 months ago•3 min saved

Living Fungi Bandages: The Future of Wound Healing

Scientists at the University of Utah have developed a living hydrogel from the soil fungus Marquandomyces marquandii, which could potentially be used for wound healing and tissue regeneration due to its multilayered, water-retaining, and biocompatible properties, marking a significant step toward bio-integrated medical materials.

via ScienceAlert|

#biomedical-materials #fungi #hydrogel

science8 months ago•2 min saved

MIT's Innovative Tech Turns Desert Air into Drinking Water and Energy

MIT engineers developed a black 'bubble wrap' hydrogel-based atmospheric water harvester that can extract over 50 milliliters of safe drinking water per day in extreme conditions like Death Valley, offering a scalable solution to address global water scarcity, especially in arid regions.

via ScienceAlert|

#desert #hydrogel #science

science-and-technology8 months ago•3 min saved

Innovative Nanomaterials and Technologies Transform Air into Drinking Water

MIT researchers have developed a high-tech 'bubble wrap' that can extract safe drinking water from air, even in extremely dry environments like Death Valley, using a hydrogel-based system that absorbs water vapor at night and condenses it during the day, with minimal energy and safe for drinking due to reduced lithium salt leakage.

via Live Science|

#airwater #hydrogel #mit

healthtech1 year ago•1 min saved

"Revolutionary Smartphone Compass Technique for High-Sensitivity Blood Glucose Measurement"

Researchers at NIST have developed a technique using the magnetometer in smartphones to measure blood glucose levels with high accuracy. By attaching a tiny well containing a solution and a strip of hydrogel to a cellphone, they were able to detect changes in magnetic field strength caused by the hydrogel's reaction to glucose or pH levels. This low-cost method could lead to the development of inexpensive glucose testing kits that can be attached to smartphones, potentially revolutionizing at-home blood glucose monitoring.

via The Indian Express|

#blood-monitoring #glucose-testing #healthtech

healthtech1 year ago•5 min saved

"High-Sensitivity Measurement of Health-Related Compounds Using Cellphone Compass"

Researchers at the National Institute of Standards and Technology have developed a technique that utilizes an ordinary cellphone magnetometer to measure the concentration of glucose and other biomedical properties with high accuracy. By using magnetic materials designed to react to biological or environmental cues, the method has the potential to rapidly and inexpensively measure various compounds important for human health, such as glucose and pH levels. The technique could enable routine testing for glucose in saliva and has the potential to detect environmental toxins. The researchers' proof-of-concept study was published in Nature Communications.

via Phys.org|

#biomedical-properties #cellphone-compass #glucose-concentration

health2 years ago•5 min saved

Game-Changing Diabetes Treatment: Long-Lasting Shots Transforming Care

Stanford engineers have developed a groundbreaking hydrogel drug delivery system that allows GLP-1 drugs, used in the treatment of Type 2 diabetes and weight control, to be administered just three times a year instead of daily or weekly injections. The hydrogel slowly releases the drugs over a four-month period, improving patient compliance and long-term health outcomes. The system has shown promising results in laboratory rats and could potentially be applied to other drugs and conditions. Human clinical trials are expected within the next two years.

via SciTechDaily|

#diabetes-treatment #drug-delivery-system #glp-1-drugs

health2 years ago•2 min saved

Revolutionary Drug Delivery System: From Daily Diabetes Shots to Just Three a Year

Stanford researchers have developed a hydrogel-based delivery system that slowly releases drugs over months to control diabetes and weight. The hydrogel, infused with glucagon-like peptide 1 (GLP-1) molecules, is injected under the skin and dissolves over time, providing an extended release of the drug. In tests on rats with type 2 diabetes, injections of the drug-loaded hydrogel every 42 days resulted in better blood glucose and weight management compared to daily shots. The researchers aim to conduct further tests in pigs before moving on to human trials, potentially offering a more convenient treatment option for diabetes patients.

via New Atlas|

#diabetes #drug-delivery #glp-1

science-and-technology2 years ago•6 min saved

Light's Surprising Ability to Evaporate Water Without Heat Unveiled by MIT

MIT scientists have discovered that light can cause evaporation at a rate exceeding what is possible with heat alone, particularly in hydrogel-bound water. This "photomolecular effect" could revolutionize solar desalination and climate modeling, potentially tripling water production in desalination processes and advancing solar cooling technologies. The researchers found that light, specifically green light, can directly bring about evaporation without the need for heat, and it does so even more efficiently than heat. This discovery could have implications for fog and cloud formation, as well as industrial processes such as solar-powered desalination. The researchers are now exploring applications of this phenomenon and collaborating with other groups to replicate their findings.

via SciTechDaily|

#climate-modeling #hydrogel #light-induced-evaporation

science-and-technology2 years ago•9 min saved

Revolutionary Injectable Hydrogel Prosthesis Accelerates Muscle Regeneration

Researchers have developed an injectable tissue prosthesis composed of a biocompatible hydrogel with bidirectional electrical conduction, allowing for closed-loop robot-assisted rehabilitation. The prosthesis, which can be injected onto rough, narrow, or deep tissue surfaces, has been successfully demonstrated in rats with severe muscle injury, leading to accelerated tissue repair. This breakthrough could have significant implications for the field of rehabilitation and tissue repair.

via Nature.com|

#hydrogel #injectable-tissue-prosthesis #neuromuscular-system

science-and-technology2 years ago•6 min saved

Harnessing Light: A Revolutionary Approach to Water Evaporation Without Heat

Researchers at MIT have discovered that under certain conditions, light can directly cause water to evaporate without the need for heat, and it does so even more efficiently than heat. This surprising finding could have implications for various applications, including desalination, fog and cloud formation, and industrial processes. The researchers suggest that this phenomenon, which they call the photomolecular effect, could potentially lead to more efficient solar-powered desalination systems and cheap desalination methods. They are also exploring its potential use in evaporative cooling processes and its effects on climate change modeling.

via Tech Xplore|

#desalination #evaporation #hydrogel

science-and-technology2 years ago•8 min saved

"Controlling Hydrogel Locomotion with Light and Electric Fields"

Researchers at Northwestern University have developed a photo- and electro-activated hydrogel that can capture and deliver cargo while avoiding obstacles under constant external stimuli of light and electricity. The hydrogel, made with spiropyran monomers, exhibits charge reversal behavior and can autonomously navigate towards the cathode and return to the anode. The team also demonstrated the hydrogel's ability to capture and deliver cargo using dielectrophoretic forces. This research paves the way for the development of intelligent materials at the molecular scale for applications in soft robotics and biomedical devices.

via Phys.org|

#autonomous-materials #electroactivation #hydrogel