Tag: "coated" at biology news
Promising multi-strain HIV vaccine candidate emerges
...he authors. The surface of the AIDS virus, HIV, is coated
with a protein called gp120 that has chemical features that vary from strain to strain. It has been difficult for researchers to find a single vaccine component that is able to generate antibodies that recognize the many forms of gp120 that exist in ...
New antibacterial coating may prolong contact lens life
...ffects after two consecutive months of wearing the coated
lenses, according to Ted Reid, Ph.D., of Texas Tech University Health Sciences Center in Lubbock, Texas, who presented the findings at the 224th national meeting of the American Chemical Society, the world's largest scientific society. Selenium, whic...
FDA clears for market new diagnostic test for lupus
...era to tiny wells in a plastic plate that has been coated
with human SR proteins. A colored molecular tag detects antibodies in the sera that stick to the SR proteins. Sera from people with lupus turns purple, while sera from non-affected individuals remains clear. This test can identify 50 percent to 70 pe...
Enzyme discovery to benefit homeland security, industry
...immobilized enzymes. Then, the pore surfaces were coated
with a specific chemical compound to provide an optimal environment for enzyme activity and stability....
Illinois lands research center for advanced water purification
...ry, which control the adsorption properties of the coated
assemblies. "Our ability to tailor the pore size and surface chemistry of the fibers provides us with a unique capability to design highly selective systems for enhanced adsorption of specific contaminants, such as pesticides and chlorinated hydrocar...
Purdue corrals new Trojan horse to replace wayward genes in mice
... therapy research was being done with a retrovirus coated
with a protein called vesicular stomatitis virus G," Sanders said. "It has a protein shell that binds to just about any kind of cell, which is terrific if you want lots of options for gene therapy. The trouble is, the proteins are toxic to most cells...
Scientists identify motor that powers parasitic cell invasion
...e to glide and perform normal forms of movement on coated
glass slides. "In optimum conditions freshly released parasites exhibit circular gliding, upright twirling and helical gliding. But with only partial gene function the parasites performed a reduced number or incomplete circles and at a lower speed. W...
Researchers discover how embryo attaches to the uterus
...h maternal and fetal tissues.) The trophoblast is coated
with a protein known as L-selectin. The wall of the uterus is coated
with carbohydrate molecules. The researchers believe that as the blastocyst travels along the uteri...
Scientists discover what makes human embryo attach to uterus
...bryos preparation for implantation, the scientists coated
latex beads with carbohydrates that normally bind L-selectin, and demonstrated that the beads bound to trophoblast cells in placental tissue under conditions found in the uterus. They also showed that isolated placental trophoblast cells expressing ...
Nanotech decoys for viruses
...lls. The group has already made gold nanoparticles coated
with a non-patterned membrane. These particles are not toxic to cells and were able to bind gp120, Gervay Hague said. The work is funded by a $1.2 million Nanoscale Interdisciplinary Research Team grant from the National Science Foundation....
Powered by your liquor cabinet, 'biofuel cell' could replace rechargeable batteries
...o quickly to be useful. Minteer and her colleagues coated
the electrodes with a polymer that has specially tailored micelles pores in which the enzymes find an ideal "micro-environment" to thrive. "The enzyme has everything it needs to function for a very long period of time instead of denaturing like it n...
Prions offer nanotech building tool
...ulators; they can't conduct electricity. But when coated
with gold and silver particles, they became remark... capable of bonding with gold particles. They then coated
these fiber strings with enough metal to make a working electrical wire. In all important respects...
Study suggests ovarian cancer cells can alter surroundings to promote chemotherapy resistance
... ovarian cancer cell lines grown in culture dishes coated
with collagen VI were significantly more resistant to Cisplatin, a drug commonly used to treat ovarian cancer, than were similar cell lines grown in untreated culture dishes. All cells produce collagens and other proteins that help build the extrace...
'Work stinks': It's more than just a slogan among ants, researchers find
...nce. Each bead was just three millimeters wide and coated
with a chemical extract that contained the same pr...s a control, the researchers also dropped in beads coated
with nest workers' extract as well as blank beads, but in neither case did the foragers come out. P...
War on germs gets cutting-edge weapon from ancient world technique
...ilver is a key ingredient in new high-tech, powder coated
finishes that hospitals and doctors offices are us...linics are looking into using antimicrobial powder coated
materials in emergency rooms, surgery areas and patients rooms, on cabinets, counters and other surf...
Antibody coated stent a breakthrough in cardiovascular treatment
...ted today in the first human patient. The antibody coated
stent, developed by Dr. Michael Kutryk, a cardiolo...to blood clots. Kutryk's invention of the antibody coated
stent reduces restenosis and prevents blood clots from occurring. "This is a very exciting time to b...
...logy then creates a micro-porous calcium phosphate coated
polymer 'bone' which is then surgically implanted into the arm where the damaged bone has been removed. The calcium phosphate coating is very thin and allows the bone cells to attach themselves to the implant. Growth factors could be added to the ca...
Scientists close in on understanding learning and memory
...rylation) by a protein kinase. The scientists then coated
microscopic beads of gold with the genetic instructions for mutant GluR2 and green fluorescent protein. Using a "gene gun," the scientists shot the beads into neurons from mice missing GluR2. Linden tested the reactions of glowing neurons, which al...
Towards an AIDS vaccine: unusual antibody that targets HIV described by scientists at TSRI
...neutralize the virus. Much of the viral surface is coated
with carbohydrates (sugars), which are hard for the immune system to attack because these sugars are made by human cells and attached by human proteins. In other words, they are "self" and should not be recognized by antibodies. However, in rare inst...
Research: Coral reefs' decline actually began centuries ago
...nd the formerly vibrant reef structure is dull and coated
with algae. The Great Barrier Reef sometimes is said to be largely pristine, but it's actually as much as a third of the way toward ecological extinction, Bjorndal said. For the first time, Bjorndal said, the research will give managers of the world...
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