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Tag: "sponge" at biology news

Scientists re-grow dental enamel from cultured cells

...the cultured dental epithelial cells onto collagen sponge scaffolds, along with cells from the middle of the tooth (dental mesenchymal cells). The scaffolds were then transferred into the abdominal cavities of rats, where conditions were favorable for the cells in the scaffolds to interact and develop. When...

Biodegradable napkin -- featuring sensitive nanofibers -- may quickly detect biohazards

...ventional fibers. "The fabric basically acts as a sponge that you can use to dip in a liquid or wipe across a surface," Frey said. "As you do that, antibodies in the fabric are going to selectively latch onto whatever pathogen that they match. Using this method we should, in theory, be able to quickly acti...

All the eggs in one basket

... fewer of the toxic sponges. The changing ratio of sponge species will ultimately affect the landscape of coral reefs. The scientists say more protection is needed for the sea turtle nesting sites. "Protecting more nesting beaches is not a politically or socially simple endeavor, but it is the only w...

Triple threat polymer captures and releases

...es in sponges and other domains that might be like sponge material." Be my guest The subsurface composi...k out," she said. "But in our case, because our sponge and the channels within it are essentially nanoscopic, the water cannot get out, at least not fast ...

Wild Gorillas Handy with a Stick

...m intimidating rivals and predators to taking leaf sponge baths and processing food. Still, the notion that tool use was not the sole province of human intelligence was difficult for some to accept. Though chimps, bonobos, orangutans, and gorillas all use tools in captivity, often imitating behaviors of th...

Drugs from the deep blue

...eir finds is phorboxazole, made by an Indian Ocean sponge collected by Molinski's team off the coast of Western Australia. Phorboxazole A is a potent toxin that in the laboratory, can inhibit the growth of a wide range of tumor cell types even at very low concentrations. It appears to block cancer cells fro...

A Father’s Day Gift: Free DNA Paternity Testing

... Annual profits from a compound derived from a sea sponge to treat herpes: US$ 50 million to US$ 100 million...eatments for leukemia is based on derivatives of a sponge while a sponge-derived steroid compound completed phase one US trials as an asthma drug in 2000. Oth...

Clear rules needed to govern deep sea bioprospecting: UNU

... Annual profits from a compound derived from a sea sponge to treat herpes: US$ 50 million to US$ 100 million...eatments for leukemia is based on derivatives of a sponge while a sponge-derived steroid compound completed phase one US trials as an asthma drug in 2000. Oth...

Simple sea sponge helps scientists understand tissue rejection

...orth of Cape Cod down to Florida. The red beard sponge (Microciona prolifera) has a cell-to-cell recognit...recently identified as another potential player in sponge tissue rejection reactions, and which is very easy to study in sponges. The human version of this mo...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...se of the food web. As well, the team uncovered a sponge with a calcium-based skeleton, a finding that amazed scientists given the depth (about 4,500 meters) at which it was found. Research in the Southern Ocean is the most expensive in the world. The recent ANDEEP III expedition by icebreaker cost one Eu...

Searching the depths of the straits of Florida for disease cures

...species, a key goal will be to gather samples of a sponge collected last May that produces chemicals currently showing potential in fighting pancreatic cancer. The upcoming expedition is being supported through funds appropriated by the Florida legislature and approved by Governor Jeb Bush as part of the s...

Sponges as drugs

...s of sponges and examined the interactions of four sponge species with possible spatial competitors. She discovered that as soon as certain sponge species grow over corals, the coral develops necrotic tissue. From this she concluded that the spong...

Marine sponge yields nanoscale secrets

The simple marine sponge is inspiring cutting-edge research in the design o...nts Mark Najarian and James C. Weaver. The simple sponge fits into the palm of your hand, and proliferates in the ocean next to the UCSB campus, said Morse. ...

A little stress gives beneficial oomph! to immune system

...archers compared the numbers of leukocytes in each sponge once the sponges were removed. "Just one session of acute stress caused a significant increase in the numbers of leukocytes to collect in the sponge," Dhabhar said. Indeed, the amount of certain types of immune cells had increased by 200 to 300 perc...

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