ink in Biological News

Toxin detection as close as an inkjet printer

... strip. The process involves formulating an ink like the one found in computer printer cartridges but with special additives to make the ink biocompatible. An ink comprised of biocompatible silica nanoparticles ...

New process makes nanofibers in complex shapes and unlimited lengths

... process is like drawing with a fountain pen the ink comes out and quickly dries or solidifies, said ... the researchers begin with a reservoir of ink connected to a glass micropipette that has an ... As the micropipette is then smoothly pulled away, ink is drawn from the reservoir. Within the tiny ...

Improved e-jet printing provides higher resolution and more versatility

... Teflon-like coating on the gold ensures the ink flows cleanly out the nozzle toward the target. Tiny droplets of ink eject onto a moving substrate to produce printed ... has the capability to deliver large volumes of ink to a surface, and offers the ability to perform ...

Brown hosts regional bioengineering conference

... research and nanotechnology such as the printing of human organs from ink jets and a new, injectable method for relieving lower back pain at a ... It may not be too far off. Thats because Calvert has succeeded in the ink jet printing of stem cells and proteins, the fundamental building blocks ...

MIT's 'electronic nose' could detect hazards

... The inkjet print head, like that in a regular inkjet printer, can deposit ink very quickly and controllably. The special gas sensitive inks used in this ... a color printer, can be easily generated to form arrays with very little ink required per sensor. In future studies, the team hopes to create ...

American Chemical Society's Weekly PressPac -- Sept. 19, 2007

... ARTICLE #4 FOR IMMEDIATE RELEASE Printing with enzymes instead of ink Journal of Organic Chemistry With all the advances in printing ... imprint almost like an old-fashioned rubber stamp. Because no diffusion of ink is involved in the process, the resolution of microcontact printed images ...

Cretaceous octopus with ink and suckers -- the world's least likely fossils?

... years old but, astonishingly, preserve the octopuses' eight arms with traces of muscles and those characteristic rows of suckers. Even traces of the ink and internal gills are present in some specimens. 'These are sensational fossils, extraordinarily well preserved' says Dirk Fuchs of the Freie ...

Queen's University Belfast researchers trace octopuses' family tree

... to the sea floor around Antarctica. Isolated in new habitat conditions, many different species evolved. Some octopuses lost their defensive ink sacs because there was no need for the defence mechanisms in the pitch black waters more than two kilometres below the surface. Dr Allcock, who ...

L-1 Identity Solutions Selected by the State of New York as the Winning Bidder to Provide Enrollment Services for a Contract Estimated at Up to $250 Million

... by a certified fingerprint technician. The prints are taken using state-of-the-art live scan equipment that captures fingerprints without the use of ink and submits them electronically. As a result, customers can receive criminal history results in days -- faster results means agencies and ...

AVS 55th International Symposium & Exhibition, Oct. 19-24

... and economic ... See: http://www.avssymposium.org/paper.asp?abstractID=29 . DRAWING WITH A PLASMA QUILL AND SILICON NANOCRYSTAL ink This talk will present the properties and potential applications of silicon nanocrystal inks for making quantum dot solar cells and printed ...

Costs of climate change, state-by-state: Billions, says UMD

... the research and directs the Center for Integrative Environmental Research at the University of Maryland. "Inaction or delayed action will make the ink run redder." Last year, Ruth conducted a similar nationwide analysis and concluded that the total economic cost of climate change in the United ...

Finding out what the Big Bang and ink jets have in common

... Singularities occur at a point of cut off, or sudden change, within a physical system, as in formation of cracks, lightning strikes, creation of ink drops in printers, and the breaking of a cup when it drops. Improved understanding of the underlying mathematics would have many benefits, for ...

Videos extract mechanical properties of liquid-gel interfaces

... Blood coursing through vessels, lubricated cartilage sliding against joints, ink jets splashing on paperliving and nonliving things abound with fluids meeting solids. However important these liquid/solid boundaries may be, ...

Emerging field of neuroecology is showcased in December issue of the Biological Bulletin

... of effects in its freshwater pond, where other inhabitants co-opt the toxin for different uses. A squid escapes a predator by clouding the water with ink but is this a visual defense, or are there chemical implications for the ecosystem as well? These and other real-world scenarios are explored in ...

Cellulose nanocrystal research could lead to new vaccines, computer inks

... research deals with cellulose drug delivery and ink jet printing. Roman experimented with taking ... rheumatoid arthritis, and certain cancers. ink jet printing was another research project for Roman. She experimented with using ink jet printers to deposit the crystals because the ...

Chemicals in tattoo inks need closer scrutiny

... "We chose to study five different brands of black ink as it is the most common color used in tattoos," ... in people, including allergic reactions to ink components, a burning sensation during the course ... regulators to begin monitoring the tattoo ink industry more closely. There are other ...

Sea slug mixes chemical defense before firing at predators

... led by Georgia State University biologist Charles Derby, PhD, examined the ink and opaline glands of Aplysia sea slugs for the chemicals L-lysine, ... produces the sticky white component of the secretion, and escapin in the ink gland, which produces the purple dye in the secretion. "Aplysia ...

In the sea slug's defense against lobsters, confusion is key

... sea slugs (also known as sea hares) release an inky secretion, termed ink and opaline, from a pair of glands. The new findings show that Aplysia's ... into activating feeding-associated behaviors succeeds, in combination with ink and opaline's other effects, in distracting the lobster sufficiently to ...

Now, self-healing materials can mimic human skin, healing again and again

... structure, layer by layer. Once the scaffold has been produced, it is surrounded with an epoxy resin. After curing, the resin is heated and the ink – which liquefies – is extracted, leaving behind a substrate with a network of interlocking microchannels. In the final steps, the researchers ...

Emotional control circuit of brain's fear response discovered

... brain, using a high-resolution version of functional magnetic resonance imaging (fMRI). The standard Stroop test asks participants to name the ink color of a printed color word. Performance is typically worse if word and color are incongruent (e.g., YELLOW printed in red ink) than when the two ...