Concept

Diffusion dynamique de la lumière

Publications associées (210)

Design and characterization of a phantom that simultaneously simulates tissue optical properties between 400 and 650 nm

Hubert van den Bergh, Georges Wagnières, Matthieu Philippe Emmanuel Zellweger

The design and characterization of optical phantoms which have the same absorption and scattering characteristics as biological tissues in a broad spectral window (between 400 and 650 nm) are presented. These low cost phantoms use agarose dissolved in wate ...

1996

From molecules to particles in silane plasmas

Christoph Hollenstein, Alan Howling, Laurent Fabien Hubert Sansonnens

Particle formation has been investigated experimentally from the initial molecular precursors up to the final micron-sized particles in a low pressure silane rf capacitive discharge. Neutrals and ions were studied by quadrupole mass spectrometry in power-m ...

1996

Light distributors for photodynamic therapy

Hubert van den Bergh, Alain Woodtli

A brief overview is given of light distributors developed by our group in Lausanne for photodynamic therapy (PDT) of cancer. We focus on fiber optic devices which have to a large extent been tested over the years in the clinic for PDT of the upper aerodige ...

1995

Clinical measurements of tissue optical properties in the esophagus and in the oral cavity

Hubert van den Bergh, Georges Wagnières

A non-invasive probe has been devised and clinically used to perform in vivo measurements of the optical properties of the esophageal wall and oral cavity. The absorption and reduced scattering coefficients are determined from the observation of the spatia ...

1995

Spectroscopic study of the activation and oligomerization of the channel-forming toxin aerolysin: identification of the site of proteolytic activation

Françoise Gisou van der Goot Grunberg

The channel-forming protein aerolysin is secreted as a protoxin which can be activated by proteolytic removal of a C-terminal peptide. The activation and subsequent oligomerization of aerolysin were studied using a variety of spectroscopic techniques. Mass ...

1992

The use of laser-light scattering and controlled shear in platelet aggregometry

Jeffrey Alan Hubbell

Laser-light scattering was used to observe and quantify the dynamics of human blood platelet aggregation in platelet-rich plasma (PRP). Aggregation was performed in a controlled shear environment by placing the PRP in the annular space between a rotating c ...

1991

Determination of solute reflection coefficients in kidney brush-border membrane vesicles by light scattering: influence of the refractive index

Françoise Gisou van der Goot Grunberg

Solute reflection coefficients sigma of cell membrane vesicles or liposomes are commonly determined by comparison of the water flow induced by a gradient of the studied solute and that of a reference molecule using light scattering techniques. However, var ...

1989

OR3 operator of bacteriophage lambda in a 23 base-pair DNA fragment: sequence-specific 1H NMR assignments for the non-labile protons and comparison with the isolated 17 base-pair operator

Rolf Gruetter

Sequence-specific 1H NMR assignments are presented for a non-selfcomplementary 23-base-pair DNA duplex of molecular weight 15,000 daltons, containing the OR3 repressor binding site of bacteriophage lambda as the central core. The NMR techniques used were m ...

Springer Verlag1988

Diffusion de neutrons de 14 MeV par le carbone 12

Claude Joseph

The angular distributions of the differential cross-sections for scattering of 14,1 MeV neutrons from 12C, Q = 0(0+); – 4,43(2+); – 7,65(0+) and – 9,63(8–) MeV, have been measured using a time-of-flight spectrometer. An indication can be found of the excit ...

s.n.1967

Single-Photon, Time-Gated, Phasor-Based Fluorescence Lifetime Imaging through Highly Scattering Medium

Edoardo Charbon, Claudio Bruschini, Arin Can Ülkü

Fluorescence lifetime imaging (FLI) is increasingly recognized as a powerful tool for biochemical and cellular investigations, including in vivo applications. Fluorescence lifetime is an intrinsic characteristic of any fluorescent dye which, to a large ext ...

ACS0

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