Tag: "tiny" at biology news

Polymers show promise for lab-on-a-chip technology

...oscale researchers is to create a lab-on-a-chip ?a tiny system that could be used, for example, to analyze blood samples and biopsies much faster, cheaper and more comprehensively than current methods. In the past, most microscale research and development funds have targeted silicon, the fundamental mate...

Rice scientists make first nanoscale pH meter

...icles invented by Halas. Each nanoshell contains a tiny core of non-conducting silica that's covered by a thin shell of metal, usually gold. Many times smaller than living cells, nanoshells can be produced with great precision and the metal shells can be tuned to absorb or scatter specific wavelengths of ...

Johns Hopkins lab scientists tame overactive CF protein

...binding between the VC protein and CFTR, much like tiny guided missiles that take out portions of this rampant VC protein before it latches onto CFTR," Zeitlin says. ...

New human retrovirus originated in mice

...own viruses. The oligonucleotides are deposited as tiny spots on a small glass chip. To detect viruses fr...le found that ?although all were XMRV ?they showed tiny genetic variations. "So, while it is the same virus in each patient, the viruses are different enoug...

New device could cut chemotherapy deaths

...at the University of Bath, England, involves using tiny fibres and beads soaked in the chemotherapy drug w...ra said that other researchers had worked on using tiny beads as a way of delivering drugs locally, but the new system showed greater promise because it cou...

AIDS-related cognitive impairment exists in two separate forms

...ve only recently discovered that miRNAs, which are tiny snippets of single-stranded RNA, can regulate the ...his study. It uses fine optic beads and needs only tiny amount of DNA and RNA, Wang-Rodriguez said, and up to 96 different tests can be put on a single tray...

Markers of gene, protein, or micro-RNA activity predict outcome in prostate and colorectal cancers

...ve only recently discovered that miRNAs, which are tiny snippets of single-stranded RNA, can regulate the ...his study. It uses fine optic beads and needs only tiny amount of DNA and RNA, Wang-Rodriguez said, and up to 96 different tests can be put on a single tray...

MIT researchers build tiny batteries with viruses

...entists have harnessed the construction talents of tiny viruses to build ultra-small "nanowire" structures for use in very thin lithium-ion batteries. By manipulating a few genes inside these viruses, the team was able to coax the organisms to grow and self-assemble into a functional electronic device. ...

Nanopore method could revolutionize genome sequencing

...ive technique to sequence DNA as it passes through tiny pores. The advance brings personalized, genome-ba...used in nanostructures--surrounded by two pairs of tiny gold electrodes. The electrodes would record the electrical current perpendicular to the DNA strand...

Common molecular 'signature' identified in solid tumors

...hing in common ?a molecular "signature" made up of tiny bits of genetic material called microRNA (miRNA) t...be in regulating gene expression. For years, these tiny bits of genetic material went unnoticed ?nestled within vast stretches of the genome that appeared t...

Study finds 60 new genes controlled by DNA snippet

... real intelligence of our system, is controlled by tiny bits of genetic material that tell genes what to do." "Junk DNA" No More Genes are the chains of deoxyribonucleic acids (DNA) that encode instructions for the building of proteins, the workhorses that make up the body's organs and carry its signa...

Unraveling the viral mechanism

...ylor College of Medicine unmasked the secrets of a tiny virus that infects bacteria and, in doing so, opened the door to a better understanding of a variety of viruses that infect people and animals. In a report that appears in and on the cover of the current issue of the journal Nature, Dr. Wah Chiu, pr...

Stable polymer nanotubes may have a biotech future

...ay have biotechnology applications as channels for tiny volumes of chemicals in nanofluidic reactor device...ical tweezers" (highly focused infrared lasers) or tiny droppers called micropipettes to pull on the elastic membranes to form long, double-walled tubes tha...

Anemone genes reveal versatile building blocks for body plans

...earchers isolated a particular set of genes from a tiny translucent cnidarian, the starlet sea anemone, Nematostella vectensis. The genes were the anemone's version of genes known to be responsible for organizing the dorso/ventral axis in bilateral animals. Matus and colleagues found that two types of p...

Legume compounds may help cancer treatment

...known as rhizobia. Rhizobia induce legumes to form tiny new root organs called "root nodules." The bacteria live in the nodules and provide the plant with useable nitrogen it can convert into proteins. CILR Chief Investigator Professor Chris Parish's group, based at ANU's John Curtin School of Medical R...

Jefferson researchers building a better rabies vaccine

...sts at Jefferson Medical College have found that a tiny change in a rabies virus protein can turn a "safe" virus extremely deadly. The finding has enabled the researchers to refine a vaccine they previously created against rabies in wildlife, making it safer and more effective. "We have identified a mole...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

...hales, depend on different arthropods, such as the tiny crustaceans called copepods and krill. Twenty percent of known marine species in the Gulf of Maine region ?a total of 652 -- are fishes. Of these, fewer than 5 percent are fished commercially. For an animated map that shows the decline of some ...

Paleontologists learn how not to become a fossil

... big fraction of animal diversity." Some clams are tiny while others are giants. They pursue lifestyles ranging from parasitic to predatory, and they live everywhere from deep-sea trenches and intertidal zones to freshwater lakes and streams. But do they all have the same chance of becoming fossils? Jabl...

A bathroom that cleans itself

...ctional Nanomaterials, a research team is studying tiny particles of titanium dioxide currently used on outdoor surfaces such as self-cleaning windows. The particles work by absorbing ultraviolet light below a certain wavelength, exciting electrons and giving the particles an oxidising quality stronger...

Worm hormone discovery may aid fight against parasitic disease

... on a biochemical level, hormone-like molecules in tiny worms called nematodes work similarly to the way in which certain hormones work in humans ?findings that one day may help eradicate worm infections that afflict a third of the world's population. UT Southwestern researchers have discovered a molecul...

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