Benjamin Rappaz

Summary

Affiliation: McGill University
Country: Canada

Publications

  1. ncbi request reprint Simultaneous cell morphometry and refractive index measurement with dual-wavelength digital holographic microscopy and dye-enhanced dispersion of perfusion medium
    Benjamin Rappaz
    Ecole Polytechnique Federale de Lausanne, Brain Mind Institute, Lausanne, Switzerland
    Opt Lett 33:744-6. 2008
  2. doi request reprint Noninvasive characterization of the fission yeast cell cycle by monitoring dry mass with digital holographic microscopy
    Benjamin Rappaz
    Ecole Polytechnique Federale de Lausanne, Brain Mind Institute, CH 1015 Lausanne, Switzerland
    J Biomed Opt 14:034049. 2009
  3. ncbi request reprint Submicrometer tomography of cells by multiple-wavelength digital holographic microscopy in reflection
    Jonas Kuhn
    Institute of Imaging and Applied Optics, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland
    Opt Lett 34:653-5. 2009
  4. pmc Simultaneous optical recording in multiple cells by digital holographic microscopy of chloride current associated to activation of the ligand-gated chloride channel GABA(A) receptor
    Pascal Jourdain
    Brain and Mind Institute, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland
    PLoS ONE 7:e51041. 2012
  5. pmc Spatially-resolved eigenmode decomposition of red blood cells membrane fluctuations questions the role of ATP in flickering
    Daniel Boss
    Brain Mind Institute, Ecole Polytechnique Federale de Lausanne, Lausanne, Vaud, Switzerland
    PLoS ONE 7:e40667. 2012
  6. ncbi request reprint Living specimen tomography by digital holographic microscopy: morphometry of testate amoeba
    Florian Charrière
    Ecole Polytechnique Federale de Lausanne, Imaging and Applied Optics Institute, CH 1015 Lausanne, Switzerland
    Opt Express 14:7005-13. 2006
  7. doi request reprint Comparative study of human erythrocytes by digital holographic microscopy, confocal microscopy, and impedance volume analyzer
    Benjamin Rappaz
    Brain Mind Institute, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland
    Cytometry A 73:895-903. 2008
  8. doi request reprint Spatial analysis of erythrocyte membrane fluctuations by digital holographic microscopy
    Benjamin Rappaz
    Brain Mind Institute, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland
    Blood Cells Mol Dis 42:228-32. 2009
  9. doi request reprint Determination of transmembrane water fluxes in neurons elicited by glutamate ionotropic receptors and by the cotransporters KCC2 and NKCC1: a digital holographic microscopy study
    Pascal Jourdain
    Brain and Mind Institute, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland
    J Neurosci 31:11846-54. 2011
  10. ncbi request reprint Digital holographic microscopy applied to life sciences
    Christian Depeursinge
    Institute of Applied Optics, Laboratoire d Optique Appliquée, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland
    Conf Proc IEEE Eng Med Biol Soc 2007:6244-7. 2007

Detail Information

Publications10

  1. ncbi request reprint Simultaneous cell morphometry and refractive index measurement with dual-wavelength digital holographic microscopy and dye-enhanced dispersion of perfusion medium
    Benjamin Rappaz
    Ecole Polytechnique Federale de Lausanne, Brain Mind Institute, Lausanne, Switzerland
    Opt Lett 33:744-6. 2008
    ..The two wavelengths are chosen in the vicinity of the absorption peak of the dye, where the absorption is accompanied by a significant variation of the RI as a function of the wavelength...
  2. doi request reprint Noninvasive characterization of the fission yeast cell cycle by monitoring dry mass with digital holographic microscopy
    Benjamin Rappaz
    Ecole Polytechnique Federale de Lausanne, Brain Mind Institute, CH 1015 Lausanne, Switzerland
    J Biomed Opt 14:034049. 2009
    ..Our study demonstrates the applicability of DHM as a tool for label-free quantitative analysis of the cell cycle and opens the possibility for its use in high-throughput screening...
  3. ncbi request reprint Submicrometer tomography of cells by multiple-wavelength digital holographic microscopy in reflection
    Jonas Kuhn
    Institute of Imaging and Applied Optics, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland
    Opt Lett 34:653-5. 2009
    ..6-1 microm axial resolution in a biological medium. The method is applied to erythrocytes investigation to retrieve the cellular membrane profile in three dimensions...
  4. pmc Simultaneous optical recording in multiple cells by digital holographic microscopy of chloride current associated to activation of the ligand-gated chloride channel GABA(A) receptor
    Pascal Jourdain
    Brain and Mind Institute, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland
    PLoS ONE 7:e51041. 2012
    ..Finally, chloride currents can be determined and pharmacologically characterized non-invasively simultaneously on a large cellular sampling by DHM...
  5. pmc Spatially-resolved eigenmode decomposition of red blood cells membrane fluctuations questions the role of ATP in flickering
    Daniel Boss
    Brain Mind Institute, Ecole Polytechnique Federale de Lausanne, Lausanne, Vaud, Switzerland
    PLoS ONE 7:e40667. 2012
    ..Further, our experiments show that the role of ATP as a driving force of CMF is questionable. ATP, however, seems to be required to maintain the unique biomechanical properties of the RBC membrane that lead to thermally excited CMF...
  6. ncbi request reprint Living specimen tomography by digital holographic microscopy: morphometry of testate amoeba
    Florian Charrière
    Ecole Polytechnique Federale de Lausanne, Imaging and Applied Optics Institute, CH 1015 Lausanne, Switzerland
    Opt Express 14:7005-13. 2006
    ..Morphometric measurements are extracted from the tomographic reconstructions, showing that the commonly used method for testate amoeba biovolume evaluation leads to systematic under evaluations by about 50%...
  7. doi request reprint Comparative study of human erythrocytes by digital holographic microscopy, confocal microscopy, and impedance volume analyzer
    Benjamin Rappaz
    Brain Mind Institute, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland
    Cytometry A 73:895-903. 2008
    ..In conclusion, DHM in combination with a decoupling procedure allows measuring noninvasively volume, refractive index, and hemoglobin content of single-living RBCs with a high accuracy...
  8. doi request reprint Spatial analysis of erythrocyte membrane fluctuations by digital holographic microscopy
    Benjamin Rappaz
    Brain Mind Institute, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland
    Blood Cells Mol Dis 42:228-32. 2009
    ..CMF amplitudes of 35.9+/-8.9 nm and 4.7+/-0.5 nm (averaged over the cell surface) were determined for normal and ethanol-fixed RBCs, respectively...
  9. doi request reprint Determination of transmembrane water fluxes in neurons elicited by glutamate ionotropic receptors and by the cotransporters KCC2 and NKCC1: a digital holographic microscopy study
    Pascal Jourdain
    Brain and Mind Institute, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland
    J Neurosci 31:11846-54. 2011
    ..This observation is of particular interest since it shows that DHM is the first imaging technique able to monitor dynamically and in situ the activity of these cotransporters during physiological and/or pathological neuronal conditions...
  10. ncbi request reprint Digital holographic microscopy applied to life sciences
    Christian Depeursinge
    Institute of Applied Optics, Laboratoire d Optique Appliquée, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland
    Conf Proc IEEE Eng Med Biol Soc 2007:6244-7. 2007
    ..DHM has the advantage to be non-invasive (no phototoxicity, no contrast agents) and allows a high throughput measurements...