Tag: "gel" at biology news
Immune system in a bottle could help prevent flu vaccine shortage
...to make the scaffolds. Instead, they used heat and gel
to make a simple mold. First, they infiltrated the crystal with sol gel. When the gel
hardened in the channels between the spheres, scientists heated the crystal to burn away all but the...
Genetically endowed worm may substitute for rodents in some toxicology testing
... machines. Robots automatically dispense hot agar gel
to support the bacterial colonies the worms use as food. After the agar cools and solidifies in the sunken wells where the animals will live, machines add drops of bacteria. Robots also measure out chemicals at various levels of dilutio...
New source for heart bypass replacement blood vessels: Fibrin-based TEVs
...he extracellular matrix by substituting the fibrin gel
with collagen." They found that after only about two weeks, the structure was ready for transplantation. "TEVs containing SMC and endothelial cells were implanted as interpositional grafts into the external jugular veins of 12-week-old lambs," Swartz...
Researchers discover defense mechanisms in some plants believed bred out by humans
...n the large aggregate. Using a procedure called gel
filtration that separates proteins according to size, the researchers then found that the cause of aggregation was another protein, the beta-glucosidase aggregating factor (BGAF), which NULL lines produced in excess. They isolated BGAF and proved its...
Injectable gel could speed repair of torn cartilage
...dical School say they are developing an injectable gel
that could speed repair of torn cartilage, a commo... such as a knee joint, the material hardens into a gel
upon exposure to ultraviolet light, leaving the transplanted cells in place so they can grow new car...
Hospital epidemiologists trace outbreak of organism to commonly used wound care equipment
... of Acinetobacter were analyzed using pulsed-field gel
electrophoresis, to determine and track the spread of the specific strain of the bacterium involved in the hospital outbreak. The records helped the researchers to identify common treatments and other links between the infected patients. Of the fi...
No blind mice, thanks to UF scientists
...s. UF researchers analyzed samples of the vitreous gel
taken from the eyeballs of 46 patients undergoing treatment for diabetic eye disease, including 24 patients with retinopathy. They found SDF-1 in each of the patients, with the highest amounts detected in patients with the worst cases. No traces of S...
Celebrex prevents adhesions after surgery
...od of preventing adhesions uses a barrier agent or gel
to separate the abdominal surfaces and prevent them from binding together. However, these treatments can suppress the immune system, cause infection, and impair healing. Although this study looked at abdominal adhesions, Puder believes that COX-2 i...
Genome-wide mouse study yields link to human leukemia
...hree groups of mice a method of using enzymes and gel
electrophoresis to map tiny bits of DNA on a grid. The stretches of DNA, referred to as fragments, show up as smudgy blobs on a test film. If a fragment is dark and definite, it is not methylated. If, on the other hand, it loses at least 30 percent o...
Topical treatment shown to inhibit HIV and herpes simplex virus infection
...School of Medicine researchers demonstrated that a gel
applied in the vagina provides protection from bot...ortunistic Infections, is the first to show that a gel
can retain anti-viral activity within the human vagina. The study, which was funded by the National...
Ophthalmologists implant five patients with artificial silicon retina microchip
...ture cutting and vacuuming device that removes the gel
in the middle of the eye and replaces it with saline. They then make a pinpoint opening in the retina through which they inject fluid to lift up a portion of the retina from the back of the eye, creating a small pocket in the "subretinal space" just ...
Researchers develop new method for facile identification of proteins in bacterial cells
... preparation. A protein mixture is spread across a gel
and separated into individual proteins, which are scooped out of the gel
and cut with protein scissors into predictable, small pieces called peptides. The samples are then a...
Finding an Alzheimer's switch
...lls of the HeLa line and separated its subunits by gel
electrophoresis, which pulls the components apart ...e native form was not known. From the evidence of gel
electrophoresis, apparently not: "In addition to these five bands we found an extra band," Zhou says...
New gene scanning technology marks a major advance in disease research
...amp electrophoresis with microplate array diagonal gel
electrophoresis (MADGE), enables significantly higher levels of scanning at a fraction of the cost. Using the Southampton technique a network of British medical researchers from the Universities of Southampton, Bristol and University College London, ...
New method shows it is possible to grow bone for grafts within a patient's body
...ext, they removed the water and replaced it with a gel
that is commercially available and approved by the FDA for delivery of cells within the human body. They chose the material because it contained calcium, a known trigger for bone growth. Their major concern was that the bioreactor would fill with sca...
VA Community College to help biotech economic development with link to global biotech training firm
...lready uses biotechnology procedures, such as DNA gel
electrophoresis, in science classes and labs. "Working with WilBio and witnessing their training will give students a larger window into the field," says Quintin Bullock, TCC Norfolk Campus provost. A research-intensive industry, biotechnology emplo...
Tissue rigidity promotes tumor progression
...cancer cells developing within a three-dimensional gel
system in which rigidity could be carefully controlled to look at how tissue stiffening might drive malignant behavior of cancer cells. Research focused on a class of molecules called integrins that function as transducers of physical cues and are k...
Aloe vera coating may prolong freshness, safety of fruits and vegetables
Aloe vera gel
is best known for its therapeutic effect on burned...ed skin, but in the future you could be eating the gel
as a healthful additive to your fruits and veggies. Researchers in Spain say they have developed a g...
Tissue stiffness drives tumor formation
...tudents in Bioengineering-used a three-dimensional gel
on which they grew breast cancer cells and could p...hen the researchers increased the stiffness of the gel
in which experimental cells were grown, Rho activity increased, as well as the number and size of fo...
Vaginal gel may provide a new approach to HIV prevention
...hat three different anti-viral agents in a vaginal gel
protect the animals against an HIV-like virus. The...en result from heterosexual intercourse. A vaginal gel
containing microbicides could be applied topically to reduce the transmission of HIV and other sexua...
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