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Tag: "biocompatible" at biology news

Better insight into brain anatomical structures

...ent resolution. "We have developed the first truly biocompatible MRI contrast agent for anatomical brain imaging," Lee and Hyeon point out. "With this agent, we are able to get high-contrast views of the anatomical details of live mouse brain." The researchers hope that their new contrast agent will allow better r...

Penn researchers show how nanocylinders deliver medicine better than nanospheres

...ough synthetic, PEGs have already been approved as biocompatible to humans, making them ideal carriers, note the researchers. While these findings could impact the way lung cancer is treated, this discovery of how to more effectively deliver drugs to the body could also improve the treatment of such other illne...

Replacing insulin is top-ranked breakthrough foreseen for health in developing world

...fectious diseases -- immune system enhancement and biocompatible blood substitutes that can be sterilized to avoid costly screening measures, for example. "Whether developing countries choose to build capacity in regenerative medicine themselves or whether they wait to adopt therapies developed first elsewhere m...

An artificial cornea is in sight, thanks to biomimetic hydrogels

...es it able to survive suturing during surgery. The biocompatible hydrogel is transparent and permeable to nutrients, including glucose, the cornea's favorite food. Collaborators on the hydrogel work that Frank is presenting at the chemists' meeting are Marianne E. Harmon, a former Stanford doctoral student now w...

Electric jolt triggers release of biomolecules, nanoparticles

... said, this technique could be incorporated into a biocompatible implant chip that would release medicine inside a patient on command. Scientists elsewhere are working on other new drug delivery techniques, such as microfabricated containers that unload their medication inside the body when a lid dissolves. Alth...

Pure carbon nanotubes pass first in vivo test

...ngle-walled carbon nanotubes. The nanotubes, whose biocompatible coating was displaced by proteins in the blood, continued to fluoresce in the animals. "I still remember how excited we were when we confirmed that the tubes were fluorescing," said Paul Cherukuri, a doctoral degree candidate in Chemistry. The res...

Nanotechnology being used to improve biocompatibility of human prosthetics and implants

...nderstanding the effect of nanostructures within a biocompatible coating could contribute greatly towards improving the effectiveness of these coatings. In this study by Singaporean researchers, K.A. Khor, H. Li and P. Cheang, from Nanyang Technological University, the nanostructures and in vitro osteoblast beha...

Ultrasound may help regrow teeth

...mfortably inside a patient's mouth while packed in biocompatible materials. The unit will be easily mounted on an orthodontic or "braces" bracket or even a plastic removable crown. The team also designed an energy sensor that will ensure the LIPUS power is reaching the target area of the teeth roots within the bon...

Virginia Tech scientists develop process for creating biocompatible fibers

...noscale material with potential applications where biocompatible materials are required, such as scaffolds for tissue growth and drug delivery. The research will be presented in the Jan. 20 issue of Science, in the article, "Phospholipid Nonwoven Electrospun Membranes," by Matthew G. McKee, a recent Ph.D. graduat...

Cellular scale drug delivery from the inside out

...ne response in the body," Lin said. "They're also biocompatible so they can be readily absorbed by the cells." But it's the structure of the nanospheres that makes drug delivery possible. The spheres have thousands of parallel channels running completely through them. Through capillary action, the spheres can so...

Bioengineers create stable networks of blood vessels

...e hydrogel scaffold materials are generally highly biocompatible and safe to implant due to the presence of large volumes of water." ...

Researchers use 'trickery' to create immune response against melanoma

...oparticles for controlled drug release made from a biocompatible and biodegradable PLA polymer system and encapsulated a fluorescently labeled model drug within them, in order to visualise nanoparticle uptake into target cells. The nanoparticles in question were designed for attachment to aptamers so that the bind...

Targeted drug delivery achieved with nanoparticle-aptamer bioconjugates

...oparticles for controlled drug release made from a biocompatible and biodegradable PLA polymer system and encapsulated a fluorescently labeled model drug within them, in order to visualise nanoparticle uptake into target cells. The nanoparticles in question were designed for attachment to aptamers so that the bind...

Polymer gel can block toxic leakage problem in gene therapy

...er body tissues. The researchers have developed a biocompatible polymer that briefly changes from a liquid at 39 degrees Fahrenheit to a gel at body temperatures to block most gene-bearing viruses from being diverted through the blood stream to the wrong targets, the scientists reported in research journals. "Wi...

Unusual antibiotics show promise against deadly 'superbugs'

...monly used in cosmetics, drug delivery systems and biocompatible coatings. Yu's goal is to change some of collagen's biochemical or mechanical properties to give it new medical applications. Traditionally, scientists have altered collagen by using intense heat or chemical reactions, techniques that may damage th...

Modified collagen could yield important medical applications

...monly used in cosmetics, drug delivery systems and biocompatible coatings. Yu's goal is to change some of collagen's biochemical or mechanical properties to give it new medical applications. Traditionally, scientists have altered collagen by using intense heat or chemical reactions, techniques that may damage th...

Innovative coating could give medical implants a longer life

...is based on a natural peptide, should make it very biocompatible and prevent evoking an immune response in the body." The researchers tested their coating on titanium dioxide (a material common in medical implants) in environments that simulated physiologic conditions with fresh serum and cells. The coating ancho...

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