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Details of The chip to microfluid

Scientists of Institute California of Technology, after to have created in a support in silicon nanometrici valves and channels, have put to point a integrated circuit to microfluid. This smallest apparatus to water could be used, in the within of the biological analyses, in order to manipulate small amount of elements.

For being able to create a pair of dispositive you to microfluid, with an area of some squared centimeter, from a single surface of polimetilsilossano, the scientists are themselves use of lithographic techniques. The first circuit, that it acts as from memory unit, is composed from 100 cells located in one grill of 25 lines for 40 columns. Every cell codifies a single binary information and initially a liquid champion contains. The data catch up the device thanks R-all'.apertura, in every cell, of micro a mechanical valve that removes, for means of a water flow, the content of the same cell. This mechanism comes reiterato for every column.

With this revolutionary method the device can be controlled with a remarkablly reduced number of imput. In practical, it is not a separate valve that manages the control of the flow of water in every line and long column but groups of valves places multiple channels.

With the scope to demonstrate the principle of the chip to microfluid, the scientists have made to meet, in every cell of the first device to microfluid, a colorful liquid rimuovendolo from the cells necessary with the attempt to generate letters "CIT". While according to device to microfluid he more resolved elaborated operations, giving the possibility to study multiple copies of the same chemical reaction. Every cell comes loaded with two champions with liquid who initially come separate from one special valve to you. Every cell can be analyzed individually with the every opening of single valve.

The chip to microfluid it has been described from the periodical "Science".