China Education Equipment Purchasing Network News: According to recent news from the Ministry of Science and Technology, Mohammad Ameen Qasaimeh and David Juncker of the Department of Biomedical Engineering at McGill University in Canada and Thomas Gervais at the University of Montreal Ecole Polytechnique and other scholars have jointly developed new floating microdevices that can Research includes cellular processes such as the formation of tumor cells and how neurons self-regulate during brain development.
This new device is based on quadrupoles or pairs of identical objects. The two positive poles and the two negative poles are arranged at the four corners of the square, so that a force field appears between them. Electrostatic quadrupoles are used in radio antennas, and magnetic quadrupoles are used to concentrate charged particle beams in particle accelerators. To build this device, four small holes of about 1 square centimeter were etched in the silicon tip. The two source holes (positive electrode) will spray fine liquid, while the other two drain holes (negative electrode) will quickly suck the liquid back into the device. The device functions like a vacuum cleaner, can be suspended on the surface of living tissue sections or adhered to the cell layer, and sends out the required chemical liquid to stimulate, detect, separate or kill cells according to different needs. The device can also establish areas with varying chemical concentration gradients to study how bacteria and other cells move around in the body, and thus be used in in vitro studies of many important processes of cells.
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