LONDON - With the copying copier at the office, the scientists then created a printer or printing machine that can produce coffee Nanoscale-sized images of biological cells or very small.
Scientists from the Illinois University who developed this cell copiers mention, the prints of biological cells can be very helpful in making artificial tissues.
"By modifying the technique, it would be possible to manipulate biological cells or cell biomolecules such as DNA," said study team leader John Rogers, as quoted by New Scientist, Tuesday (02/02/2010).
Electrohydrodynamic jet printer made in their work by producing different electric voltage between the metallic nozzle and the substrate underneath. The results of the electric voltage causes the charge of ions in the ink in the nozzle assembly and its surface is formed like a crescent moon.
Because the ionic charge repel, the surface of the crescent moon will then be changed into a cone shape, producing a super-thin edge where the smallest small droplets of ink removed.
This process produces an imbalance in the quantity of negative and positive ions in the printing ink. But the team realized that by changing the voltage polarity, they can solve these problems and can also print a variety of intricate patterns of negative or positive charge into the substrate. In essence, this capability is needed to make copies of biological cells are complex and very small.
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