Sentences with phrase «make hydrogel»

Other scientists have used metal ions to make hydrogel actuators, but no one has used chemistry found in mussel adhesive proteins.

Michigan Tech's Bruce P. Lee borrowed chemistry found in the adhesive proteins of mussels, left, to make his hydrogel actuator.

To test this idea, the researchers made a hydrogel with A. xylinum.

The E.T.H. team made a hydrogel grid incorporating a strain of Pseudomonas putida that breaks down the pollutant phenol.

«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.

«To our knowledge, this is the first time anyone has made a hydrogel in a living cell this way,» says Inoue.

The researchers made the hydrogels by mixing together microbeads of one type of hydrogel that degrades very rapidly in a solution of another polymer that degrades much more slowly.

Not exact matches

What makes them absorbent is the hydrogels, or polymers, which can absorb up to 100 times their weight.

Gel Pads: Medela makes a wonderful product called Tender Care Hydrogel Pads.

Hydrogels are man - made substances that absorb water and hold it in the form of a gel.

Thin films made of heart cells and hydrogel change hues when the films shrink or stretch, much like chameleon skin.

In the study, the researchers loaded a hydrogel — a half - inch disc made of a biodegradable sugar naturally found in the human body — with drugs that activate dendritic cells.

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).

This scanning electron microscopy image shows the self - assembled nanofibers that make up the hydrogel.

To make a wearable device that can cope with the jostling of everyday life, the team used a water - rich, polyacrylamide hydrogel and added lithium chloride to make it conduct electricity.

Her team developed an earlier bacterial hydrogel made with the algae - produced polymer alginate, but did not cast it into functional products.

Cellulose is only made on the surface of the hydrogel because that is where most of the oxygen is — therefore, the method produces thin coatings suitable for wound treatment.

A new battery made of fleshy hydrogel layers generates and stores power like electric eels do.

So Ke Cheng, Hu Zhang, Jinying Zhang and colleagues wanted to see whether placing stem cells in inexpensive hydrogels with designed tiny pores that are made in the laboratory would work.

Making the right hydrogels is only the first step.

The injection is made up of a mixture of VentriGelTM, a hydrogel derived from scaffolding protein that is extracted naturally from the heart.

«When the hydrogel is made, it has a jelly or tofu consistency, but colorless and transparent,» Sun said.

«Our hydrogel is very flexible, made from a biocompatible polypeptide and can be activated using light.»

Because the hydrogel is human - made, it is easy to control its chemical composition and key properties, and ensure consistency from batch to batch.

This hydrogel patent, along with several other patent pending applications, are licensed by the startup company PepGel LLC, which was co-founded by Sun and Huang to make their technology available for research use and medical device applications.

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.

Compared to other types of hydrogels being developed (left), a new hydrogel (right) can form crosslinks after injection into the heart, making the material stiffer and longer - lasting.

Furthermore, bacteria, unlike mammalian cells, are compatible with most hydrogels — gel - like materials that are made from a mix of mostly water and a bit of polymer.

«The fully defined nature of these synthetic bioengineered hydrogels could make them ideal for use in human patients in the event that HIOs are used for therapy in the future,» said Miguel Quirós, a University of Michigan postdoctoral fellow and co-lead author in the study.

Using a tiny colonoscope, Quirós and Cruz - Acuña delivered the hydrogel, along with the organoids, into wounds that had been made in the intestines of immune - compromised mice.

For instance, Georgia Tech Graduate Student Ricardo Cruz - Acuña, the paper's co-lead author, experimented with several combinations before determining that a hydrogel made up of 96 percent water and containing a particular cell adhesion peptide was ideal for the HIOs.

The nano - hydrogels have shown very good characteristics of biocompatibility with the human organism, due to their physical properties, which make them resemble living tissues, especially by its high water content, its soft and elastic consistency, and its low interfacial tension which prevents them from absorbing proteins from body fluids.

The scientists are now modifying the iPOLYMER system so that the hydrogels integrate RNA molecules into their structures, making them better mimics of the stress granules seen in human cells.

Bashir's group has been a pioneer in designing and building bio-bots, less than a centimeter in size, made of flexible 3D printed hydrogels and living cells.

«Most hydrogels are very weak, since they're made up of mostly water, and will often collapse on themselves,» Shah said.

These cells contract and expand — just as they would inside an actual rat heart to make it beat — causing the underlying hydrogel to shrink and stretch too.

The material the group was working with for retinal implants was a hydrogel called PNIPAM, poly (N - isopropylacrylamide), which had a unique attribute that made it a natural fit for this application: When cooled, the hydrogel became a liquid for easy application, and when heated, it became a viscous semi-solid with strong adhesion.

To that end, the team made a significant discovery two years ago when it created a revolutionary way to manufacture soft materials using 3D printing and microscopic hydrogel particles as a medium.

«This makes it problematic for many room temperature biofabrication systems, which are compatible with only a narrow range of hydrogel viscosities and which must generate products that are as uniform as possible if they are to function properly.»

To make the nanosponge - hydrogel, the team mixed nanosponges, which are nanoparticles that absorb dangerous toxins produced by MRSA, E. coli and other antibiotic - resistant bacteria, into a hydrogel, which is a gel made of water and polymers.

Traditional hydrogels made up of either synthetic polymers or natural biomolecules often serve as passive scaffolds for molecular or cellular species, which render these materials unable to fully recapitulate the dynamic signaling involved in biological processes, such as cell / tissue development.

This, says NIST materials scientist Carl Simon, has led to a large and rapidly expanding collection of possible 3D scaffolds, ranging from relatively simple gels made of collagen, the body's natural structural matrix, to structured or unstructured arrangements of polymer fibers, hydrogels and many more.

One idea we have is to use a hydrogel like this to make artificial muscles that could automatically open and close radiator systems as temperatures rise and fall.

To make his movable hydrogel, Lee borrowed chemistry from proteins that mussels use to anchor themselves to wet rocks.

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.

In a report published this week in Advanced Health Care Materials, the researchers describe a new technique of bonding hydrogels and elastomers to make this new material.

ANN ARBOR, Mich — By combining engineered polymeric materials known as hydrogels with complex intestinal tissue known as organoids — made from human pluripotent stem cells — researchers have taken an important step toward creating a new technology for controlling the growth of these organoids and using them for treating wounds in the gut that can be caused by disorders such as inflammatory bowel disease (IBD).

«SB50 takes the powerful clotting ability of this snake venom and makes it far more effective by delivering it in an easily localized hydrogel that prevents possible unwanted systemic effects from using batroxobin alone.»

The hydrating mask is made of a hydrogel matrix that releases its ingredients by melting — or «cocooning» — into the skin.

The hydrating mask is made of a hydrogel matrix that releases its ingredients by melting