Anthony Treizebré

Publications (2)2.3 Total impact

• Article: New THZ excitation of planar Goubau line

  Anthony Treizebré, Bertrand Bocquet, Yansheng Xu, Renato G. Bosisio
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  ABSTRACT: Quite recently, it has been found that conducting wires lying on a flat dielectric substrate can propagate Terahertz (THz) waves in the same way as conducting wires entirely coated with a dielectric (Goubau line). This phenomenon is interesting because it is a basic requirement to fabricate integrated circuits at THz frequencies. The excitation of planar Goubau line (PGL) waves was found to have a very strong Goubau mode on conducting wire. The excitation was made with a coplanar waveguide transition fed with a THz signal obtained from a vector network analyzer. The Goubau mode on PGL was excited with high efficiency (up to 75%.). This is a first step in the design of THz BioMEMS dedicated to living cell investigations. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2998–3001, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23850
  Microwave and Optical Technology Letters 08/2008; 50(11):2998 - 3001. · 0.62 Impact Factor
• Article: Nanoscale devices for online dielectric spectroscopy of biological cells.

  Damien Debuisson, Anthony Treizebré, Timothée Houssin, Eric Leclerc, Dominique Bartès-Biesel, Dominique Legrand, Joel Mazurier, Steve Arscott, Bertrand Bocquet, Vincent Senez
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  ABSTRACT: Nanoscale probes have been developed for the online characterization of the electrical properties of biological cells by dielectric spectroscopy. Two types of sensors have been designed and fabricated. The first one is devoted to low (<10 MHz) frequency range analysis and consists of gold nanoelectrodes. The second one works for high (>40 Hz) frequency range analysis and consists of a gold nanowire. The patterning of the sensors is performed by electron beam lithography. These devices are integrated in a microfluidic channel network for the manipulation of the cells and for the improvement of the performances of the sensors. These devices are used for the analysis of a well-characterized biological model in the area of the ligand-receptor interaction. The purpose is to monitor the interaction between the lactoferrin (the ligand) and the nucleolin and sulfated proteoglycans (the receptors) present or not on a set of mutant Chinese hamster ovary cell lines and their following internalization into the cytoplasm. Initial measurements have been performed with this microsystem and they demonstrate its capability for label-free, real-time, analysis of a dynamic mechanism involving biological cells.
  Physiological Measurement 06/2008; 29(6):S213-25. · 1.68 Impact Factor