Sentences with phrase «hydrogel at»

«After injecting the nanosponge - hydrogel at the infected spot, we observed that it absorbed the toxins secreted by the bacteria and prevented further damage to the local blood, skin and muscle tissues,» said Zhang.

The micro-robot, which is remotely controlled by magnetic fields, can move one hydrogel at a time to build structures.

The decision to implant the hydrogel at the time of surgery was based on several considerations.

Not exact matches

Ting Liu at the Chinese Academy of Sciences in Beijing and her colleagues built a specialised material out of a layer of hydrogel sandwiched between a stretchy plastic material called elastomer, and then coated in silicone rubber to keep the hydrogel from drying out.

For example, researchers are developing «smart» biomaterials such as temperature - sensing hydrogels that can respond biologically to environmental conditions by changing their biomechanical or drug - releasing properties, says Seeram Ramakrishna, a professor of mechanical engineering and director of the Center for Nanofibers & Nanotechnology at the National University of Singapore.

To mimic this versatile substance, Joke Bouwstra and Robert Rissman at Leiden University in the Netherlands mixed a range of fatty compounds including lanolin, fatty acids, ceramides and cholesterol with particles made of a water - storing hydrogel (International Journal of Pharmaceutics, DOI: 10.1016 / j.ijpharm.2009.01.013).

Tests showed that subcutaneous implants, left, of a hydrogel developed at Rice University encouraged blood vessel and cell growth as new tissue replaced the degrading gel.

The 4D printing approach here involves printing a 3D object with a hydrogel (water - containing gel) that changes shape over time when temperatures change, said Howon Lee, senior author of a new study and assistant professor in the Department of Mechanical and Aerospace Engineering at Rutgers University - New Brunswick.

Engineers at Rutgers - New Brunswick and the New Jersey Institute of Technology worked with a hydrogel that has been used for decades in devices that generate motion and biomedical applications such as scaffolds for cells to grow on.

«The hydrogel concept opens the possibility to integrate a variety of other sensitive biological or artificial catalyst for which the intrinsic stability can not be further increased,» says Prof. Wolfgang Lubitz, Director at the MPI CEC.

Xiuzhi «Susan» Sun, university distinguished professor of grain science and bio - and agro-engineering at Kansas State University, examines a test tube containing a hydrogel.

The lab of Matthias Lütolf at EPFL's Institute of Bioengineering has developed a synthetic «hydrogel» that eschews the limitations of conventional, naturally derived gels.

U.S. Patent No. 8,835,395, «Novel Protein Peptide Hydrogels,» was awarded to the Kansas State University Research Foundation, a nonprofit corporation responsible for managing technology transfer activities at the university.

If they're desperately hungry at the surface, they start exploring the rest of the vivarium, even though descending into the hydrogel means a lack of oxygen.

Hartgerink and lead author Vivek Kumar, a postdoctoral researcher at Rice, viewed clotting as a good avenue of investigation for practical application of KOD, a synthetic protein made of 36 amino acids that self - assemble into triple - helix nanofibers and hydrogels.

«If the hydrogel contains no food but we add a food cue at the bottom of the chamber, the larvae dive deeper and more frequently,» said lead author Daeyeon Kim, who conducted this research at the CRG and is now a postdoctoral fellow at UCSB.

In addition to being able to rapidly change forms, the hydrogel formulas created by Sun and Huang are resistant to high temperatures up to 80 - degrees Celsius at a neutral pH level.

Instead of delivering the drug continuously at a steady rate, the hydrogel is designed to respond to increased disease activity during flares, releasing the drug when symptoms worsen.

To test the TG - 18 hydrogel, we exposed the gel to several different kinds of environments mimicking conditions in arthritic joints,» said Nitin Joshi, co-first author on the work an Instructor of Medicine at BWH.

«The exciting part of this work is not just that we made hydrogels, but that we're now equipped with this powerful technique that lets us ask fundamental — and very challenging — questions about them,» says Takanari Inoue, Ph.D., an associate professor of cell biology at the Johns Hopkins University School of Medicine and senior author of the report on the research published online Nov. 6 in the journal Nature Materials.

Eduardo Mendizábal Mijares, professor at the Department of Chemistry, in the University of Guadalajara, said «we used nano - hydrogels loaded with drugs and injected them into the patient.

However, chemical engineers at the University of Guadalajara (UdeG), in Mexico, developed a new technology based on thermosensitive nanoparticles (nano - hydrogels) to use these materials in the field of biomedicine, as an alternative to achieve controlled release of anticancer drugs.

«Recognizing MMP - 20's function in biomineralization is one of the first steps to learning how dental enamel forms in nature,» said Qichao Ruan, lead author of the hydrogel study and a postdoctoral research associate in the Center for Craniofacial Molecular Biology at USC.

«Since the initial hydrogel's transition temperature was very close to the temperature of the human eye, we had to modify its properties to ensure that it would form a solid seal as soon as the gel was applied to the eye by a soldier or medic,» says lead author Niki Bayat, a doctoral candidate in the Mork Family Department of Chemical Engineering and Materials Science at the USC Viterbi School.

«First responders at a mass casualty incident could deploy the hydrogel while patients wait for their injuries to be completely repaired by an ocular surgeon in appropriate microsurgical facilities,» he says.

Two days after the nanosponge - hydrogel was injected underneath the skin of a mouse, nearly 80 percent of the nanosponges were still found at the injection site.

They subjected the bacteria - laden hydrogel to pressures up to 10 times that experienced at sea level.

«In our research, we were able to create an entirely recombinant protein - based light - sensitive hydrogels by covalently assembling the CarHC photoreceptor proteins using genetically encoded SpyTag - SpyCatcher chemistry,» said Fei Sun, author of the paper and assistant professor at HKUST's department of chemical and biomolecular engineering.

By integrating the nanosponges into a hydrogel, we can retain them at the site of infection.»

The team also showed that the hydrogel was effective at holding the nanosponges in place within the body.

Ting Liu at the Chinese Academy of Sciences in Beijing and her colleagues built the nanogenerator by sandwiching a layer of hydrogel between a stretchy plastic material called an elastomer, then coating it in silicone rubber to keep the hydrogel from drying out.

To create a prototype of such a battery, Anirvan Guha at the University of Fribourg in Switzerland and his colleagues spread thousands of hydrogel bubbles across a thin, pliable surface.

«We combined the strengths of two different materials — nanosponges and hydrogels — to create a powerful formulation to treat local bacterial infections,» said Liangfang Zhang, nanoengineering professor in the Jacobs School of Engineering at UC San Diego, who led the team.

The team members were intrigued to find, additionally, that the process was very fast, taking just one second, with the rate of deformation, at about 70 % per second, being higher than what has been seen in other hydrogels.

The researchers then conducted experiments to have the hydrogel scaffold form at the surgical site after removal of primary tumours.

Encapsulation allows for diffusion of pro-angiogenic cytokines and growth factors made by the hMSCs while maintaining them at the site of implantationâ $ ¦ Alginate encapsulated hMSCs attached to the heart with a hydrogel patch resulted in a highly significant improvement in left ventricular function after acute myocardial infarction.

A combination of materials from MIT researchers shows the benefits of hydrogel paired with rubber, forming a product that is at once both comfortable and impermeable.

To investigate this hypothesis, the authors injected a collagen hydrogel into the kidneys of mice with ischemia / reperfusion damage and assessed the consequences at four weeks.

The new hydrogel type can be seen in these electron microscopy images, which show the nanogel and polymer structure at different magnifications (Image: MIT)

Following the removal of dead / damaged tissue at day 4, the authors treated the wounds with split - thickness skin grafts (STSG) or meshed STSG (mSTSG) and compared these to mSTSG accompanied by a polyethylene - glycol - fibrin - based hydrogel laden with increasing concentrations of in vitro expanded porcine ASCs.

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Publications ♦ Blue Light Cured Hydrogel Niches for Cell Immobilization: Evaluating Cell Physiology; Calvert, P.; Mishra, S.; 239th American Chemical Society, March 21 - 25, 2010 at San Francisco

Publications ♦ Blue Light Cured Hydrogel Niches for Cell Immobilization: Evaluating Cell Physiology; Calvert, P.; Mishra, S.; 239th American Chemical Society, March 21 - 25, 2010 at San Francisco ♦ Blue Light Cured 3D Living Catalysts; Mishra, S.; Calvert, P.; Bioengineering Conference, 2009 IEEE 35th Annual Northeast, 3 - 5 April 2009, 1 - 2 ♦ Preparation of Thermosensitive Membranes by Radiation Grafting of Acrylic Acid / N - isopropyl Acrylamide Binary Mixture on PET Fabric; Gupta, B.; Mishra, S.; Calvert, P.; Radiation, Physics, and Chemistry; 77 (2008) 553 - 560 ♦ Technical Editor of annual textile journal Fiber to Finish (India), 2003 - 2004