The World’s Smallest Automated Syringe

Juli 6, 2009

Tomaso Zambelli, a researcher in the group led by Janos Vörös, Professor at the Institute of Biomedical Technology at ETH Zurich, Switzerland, has presented a nanosyringe for automated injection of DNA, RNA and medicines into cells without damaging them.
To create this syringe, called “fluid force microscope”, Zambelli transformed the technology of the atomic force microscope into a microinjection system. In contrast to a conventional manual system, the pressure exerted on the cell by the measuring needle is adjusted so accurately that the cell is not damaged unnecessarily. A laser is responsible for the control, recording every movement of the cantilever and adjusting the force on the cell several thousand times a second. The system also operates under water or in other liquids. To enable the injection of liquids, scientists at the Swiss Center for Electronics and Microtechnology (CSEM) in Neuchâtel installed a microchannel in the cantilever – the diameter of the opening at the needle tip is only 200 nanometers.
In addition to having biological uses, the method could also be applied in the manufacture of microelectronics or microelectromechanical systems (MEMS). The results have been published in Nano Letters.
www.lbb.ethz.ch
www.csem.ch

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Tobias Kippenberg Awarded Fresnel Prize

Mai 19, 2009

For his fundamental contributions to the field of optomechanics Prof. Tobias Kippenberg, leader of the independent Max Planck junior research group “Laboratory of Photonics and Quantum Measurements” at Max Planck Institute of Quantum Optics in Garching, Germany and tenure track assistant professor at the ETH Lausanne (EPFL) in Switzerland, is honoured with the Fresnel Prize in Fundamental Aspects of the European Physical Society (EPS). This award endowed with a prize money of €3000 is given by the “Quantum Electronics and Optics Division” of EPS biannually on the occasion of the “Conference on Lasers and Electro-Optics (CLEO) Europe”, held during the “World of Photonics” Congress in Munich, Germany. The prize for Tobias Kippenberg as well as the other EPS-awards will be presented in a ceremony on June 16, 2009.
www.mpq.mpg.de