nanobacteria造句

• Currently the border between life and the inanimate wavers somewhere around the protobiont nanobacteria and viruses.
• The February 2008 " PLoS Pathogens " article focused on the comprehensive characterization of nanobacteria.
• The question of whether of such small organisms, called nanobacteria, exist on Earth has been highly controversial.
• But there is still no proof that nanobacteria exist _ or that life is even possible in such a minuscule form.
• The study concluded that nanobacteria might have a potential role in forming kidney stones and may need to be screened for in crews pre-flight.
• The authors say that their results rule out the existence of nanobacteria as self-propagating entity, namely self-propagating mineral-fetuin complexes.
• The structures found on ALH84001 are in diameter, similar in size to theoretical nanobacteria, but smaller than any cellular life known at the time of their discovery.
• They are comparable in size to tiny forms called " nanobacteria " recently described on Earth, but the existence of these tiny terrestrial forms remains unproven and controversial.
• In the early 1990s, scientists discovered naturally occurring nanobacteria that since have been found in the body and implicated in calcification diseases such as kidney stones, arteriosclerosis and cataracts.
• In 1996, NASA scientist David McKay published a study suggesting the existence of nanofossils  fossils of Martian nanobacteria  in ALH84001, a meteorite originating from Mars and found in Antarctica.
• These small living bacterial cells are distinct from the purported " nanobacteria " or " calcifying nanoparticles ", which were proposed to be living organisms that were 0.1 ?m in diameter.
• Short palate, lung and nasal epithelium clone 1 ( SPLUNC1 ) may bind the lipopolysaccharide of Gram-negative nanobacteria, thereby playing an important role in the host defence of nasopharyngeal epithelium.
• And the supposed fossils, they noted, had internal structures indicating that they were actually crystals of iron oxide, or magnetite, and not anything resembling extremely small bacteria, like nanobacteria on Earth.
• Three, the ALH84001 meteorite, the Nakhla meteorite, and the Shergotty meteorite, have been of interest to scientists because of their age or microscopic structures found inside them that resemble Earthly fossilized nanobacteria.
• Some scientists speculate that such cells, known as nanobacteria, ( nano means one-billionth, and these reported fossils are measured in billionths of a meter ) may have existed here, says Erwin.
• In 2005, Ciftcioglu and her research team at NASA used a rotating cell culture flask, which simulates some aspects of low-gravity conditions, to culture nanobacteria suspected of rapidly forming kidney stones in astronauts.
• Another example, from a different perspective, would be evaluation and therapy at the nanoscopic level, i . e . the treatment of Nanobacteria ( 25-200 nm sized ) as is done by NanoBiotech Pharma.
• Most of their peers still are skeptical of this so-called nanobacteria, but they're also attracting collaborators, such as Dr . Libby Hohmann, a bacterial researcher and instructor at Harvard Medical School in Boston.
• Although they met only recently on the Internet, Folk and Kajander coincidentally gave their discoveries the same name : nanobacteria _ nano meaning one-billionth _ because thousands of them wouldn't fill the period at the end of this sentence.
• Or to the tick-borne bacteria called Ehrlichia that can fatally poison the bone marrow; or the Sin Nombre viruses that cause a fatal pneumonia; or a whole new species of bacteria, called the nanobacteria, that may be responsible for many kidney stones?