News tagged with hydrogel
Smart, self-healing hydrogels open new possibilities in medicine, engineering
University of California, San Diego bioengineers have developed a self-healing hydrogel that binds in seconds, as easily as Velcro, and forms a bond strong enough to withstand repeated stretching. The material ...
Mar 05, 2012 |
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New technique predictably generates complex, wavy shapes
The flexible properties of hydrogels — highly absorbent, gelatinous polymers that shrink and expand depending on environmental conditions such as humidity, pH and temperature — have made them ideal ...
Nanotechnology / Bio & Medicine
May 03, 2012 |
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Team designs a bandage that spurs, guides blood vessel growth
Researchers have developed a bandage that stimulates and directs blood vessel growth on the surface of a wound. The bandage, called a "microvascular stamp," contains living cells that deliver growth factors ...
Dec 15, 2011 |
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Nanoparticles harvest invisible cancer biomarkers
(PhysOrg.com) -- Cancer biologists have long presumed that tumor cells shed telltale markers into the blood and that finding these blood-borne biomarkers could provide an early indicator that cancer is developing somewhere ...
Nanotechnology / Bio & Medicine
Nov 22, 2011 |
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New 'smart' material could help tap medical potential of tissue-penetrating light
Scientists are reporting development and successful initial testing of the first practical "smart" material that may supply the missing link in efforts to use in medicine a form of light that can penetrate ...
Nov 16, 2011 |
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Hydrogels used to make precise new sensor
Researchers are developing a new type of biological and chemical sensor that has few moving parts, is low-cost and yet highly sensitive, sturdy and long-lasting.
Feb 08, 2011 |
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Biomedical breakthrough: Blood vessels for lab-grown tissues (w/ Video)
Researchers from Rice University and Baylor College of Medicine (BCM) have broken one of the major roadblocks on the path to growing transplantable tissue in the lab: They've found a way to grow the blood vessels and capillaries ...
Jan 12, 2011 |
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Improving DNA analysis
DNA analysis is poised to experience a significant advancement thanks to the work of a Texas A&M University chemical engineer, who has discovered a way to achieve more effective separation of DNA fragments.
Sep 09, 2010 |
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Scaffold gradients: Finding the right environment for developing cells
People often have strong opinions on the "right" firmness of mattresses for themselves, and, as it turns out, some cell types have similar preferences for their support structures. Now a research team from ...
May 27, 2010 |
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Microscopy reveals structure of calcite shells
(PhysOrg.com) -- Lara Estroff and colleagues have taken a deep, detailed look at the way lab-created calcite crystals, similar to those found in nature, grow in tandem with proteins and other large molecules.
Nov 30, 2009 |
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'Spaghetti' scaffolding could help grow skin in labs
Scientists are developing new scaffolding technology which could be used to grow tissues such as skin, nerves and cartilage using 3D spaghetti-like structures. Their research is highlighted in the latest issue of Business, the qu ...
Oct 16, 2009 |
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Researcher regenerates brain tissue in traumatic injuries
An injectable biomaterial gel may help brain tissue grow at the site of a traumatic brain injury, according to findings by a Clemson University bioengineer.
Sep 02, 2009 |
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Trapped! Scientists Immobilize Bacteria in Fibrous Hydrogel
(PhysOrg.com) -- Bacteria play a role in myriad industrial processes from fermentation to cleaning up environmental pollution. But floating freely in solution, the microbial cells constantly multiply, generating ...
Aug 04, 2009 |
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DNA-based gel produces proteins without live cells
(PhysOrg.com) -- A new method developed by Cornell biological engineers offers an efficient way to make proteins for use in medicine or industry without the use of live cells. The proteins made in this way ...
Apr 01, 2009 |
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Synthetic hydrogels improve testing of active substances in 3-D cell culture
The life science company Cellendes in Germany has developed synthetic hydrogels that make it possible to culture cells in three-dimensional environments. Their invention has fundamental advantages over other ...
May 03, 2011 |
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Gel
A gel (from the lat. gelu—freezing, cold, ice or gelatus—frozen, immobile) is a solid, jelly-like material that can have properties ranging from soft and weak to hard and tough. Gels are defined as a substantially dilute cross-linked system, which exhibits no flow when in the steady-state. By weight, gels are mostly liquid, yet they behave like solids due to a three-dimensional cross-linked network within the liquid. It is the crosslinks within the fluid that give a gel its structure (hardness) and contribute to stickiness (tack). In this way gels are a dispersion of molecules of a liquid within a solid in which the solid is the continuous phase and the liquid is the discontinuous phase.
For more information about Gel, read the full article at
Wikipedia.
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