Tag: "ink" at biology news
Particle emissions from laser printers might pose health concern
...ultrafine powder used in laser printers instead of ink
to form text and images. One of the printers released particles into an experimental chamber at a rate comparable to the particle emissions from cigarette smoking, the report stated. Thirty-seven of the 62 printers, on the other hand, released no p...
Now, self-healing materials can mimic human skin, healing again and again
...y 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 deposit a brittle epoxy coating on top of the substrate, and fill the network with a liquid healing agent. In...
Canadian paper innovation holds promise for improved global health safety
...s are investigating the development of a bioactive ink
which would allow biologically active chemicals to be printed, coated or impregnated onto or into paper using current paper-making and high-speed printing processes. "The development of bioactive paper holds potential benefits for the paper product...
From ink to optics, study of particle mixtures yields fundamental insights
Since the invention of ink
over 3,000 years ago, people have exploited the unique properties of colloids, in which particles of one substance are suspended in another. Now, Princeton University chemical engineers have answered a fundamental question about these mixtures in wo...
Sea slug mixes chemical defense before firing at predators
...versity biologist Charles Derby, PhD, examined the ink
and opaline glands of Aplysia sea slugs for the ch...ite component of the secretion, and escapin in the ink
gland, which produces the purple dye in the secretion. "Aplysia packages these innocuous precursors ...
Scripps scientists identify target of an immune suppression molecule called CD22itself
...an a bank teller would want to give away exploding ink
packs to honest customers. So the body has ways of keeping the B cells in the bottom of the drawer until a thief comes along. One basic way the body does this is by setting a threshold for B cell activation. Only those B cells with receptors that ca...
In the sea slug's defense against lobsters, confusion is key
...wn as sea hares) release an inky secretion, termed ink
and opaline, from a pair of glands. The new findin...associated behaviors succeeds, in combination with ink
and opaline's other effects, in distracting the lobster sufficiently to enable the slug's successful...
Neuroscientists locate 'imaginary' colors
...pheme-color synesthetes, an ordinary "5," in black ink
on a white background, always appears red or a "k," greenish-blue. According to research published in the March 24 issue of Neuron , not only do these grapheme-color synesthetes really see the colors they report, as measured in behavioral tests, bu...