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Sonde fluorescente

Publications associées (325)

A Ca2+ ion selective electrode biosensor in microfluidics to monitor hepatocyte’s activities

Philippe Renaud, Harald Van Lintel, Robert Meissner

Ca2+ plays a crucial role in cell communication. For example, periodical changes in Ca2+ concentration act as cell sig- nals. Intracellular Ca2+ signals have been measured by Ca2+ sensitive fluorescent dye [1]. In this study, extracellular Ca2+ variation w ...

2010

An Internal Fluorescent Probe Based on Anthracene to Evaluate Cation-Anion Interactions in Imidazolium Salts

Paul Joseph Dyson, Rosario Scopelliti, Zhaofu Fei, Christian Hartinger, Wee Han Ang, Xuemei Yang

A series of fluorescent imidazolium-based salts contg. the cation [AnCH2MeIm]+ (in which An=anthracene and Im=the imidazolium cation) with Cl-, BF4-, PF6-, SO3CF3-, [N(CN)2]-, [N(SO2CF3)2]-, or PhBF3- anions have been prepd. and characterized. X-ray diffra ...

2010

In vitro uptake of amphiphilic, hydrogel nanoparticles by J774A.1 cells

Jeffrey Alan Hubbell

We here report improved synthesis and in vitro interactions of amphiphilic hydrogel nanoparticles with the macrophage cell line J774A.1. Nanoparticles comprising dispersed hydrophobic nanodomains of poly(propylene glycol) within a continuous phase of hydro ...

2010

Selective Visualization of Fluorescent Sterols in Caenorhabditis elegans by Bleach-Rate-Based Image Segmentation

Daniel Sage

The nematode Caenorhabditis elegans is a genetically tractable model organism to investigate sterol transport. In vivo imaging of the fluorescent sterol, dehydroergosterol (DHE), is challenged by C. elegans' high autofluorescence in the same spectral regio ...

Wiley InterScience2010

Notch1 is required for maintenance of the reservoir of adult hippocampal stem cells

Freddy Radtke

Notch1 regulates neural stem cell (NSC) number during development, but its role in adult neurogenesis is unclear. We generated nestin-CreER(T2)/R26R-YFP/Notch1(loxP/loxP) [Notch1inducible knock-out (iKO)] mice to allow tamoxifen (TAM)-inducible elimination ...

Society for Neuroscience2010

Digital holographic microscopy real-time monitoring of cytoarchitectural alterations during simulated microgravity

Christian Depeursinge, Christophe Pache, Jonas Kühn, Muhammed Fatih Toy, Jérôme Parent, Marcel Egli

Previous investigations on mammalian cells have shown that microgravity, either that experienced in space, or simulated on earth, causes severe cellular modifications that compromise tissue determination and function. The aim of this study is to investigat ...

2010

Three-dimensional Localization of Fluorescent Emitters at the Nano-scale

Theo Lasser, Iwan Märki, François Aguet, Stefan Geissbühler

We demonstrate nanometer-level localization accuracy of a single fluorescent emitter in three dimensions. Our super resolution microscopy technique is based on spectral self-interference for axial localization and two-dimensional diffraction pattern analys ...

2009

Semisynthetic fluorescent sensor proteins based on self-labeling protein tags

Kai Johnsson, Marlon Hinner, Matthias Albert Brun, Kui Thong Tan

Genetically encoded fluorescent sensor proteins offer the possibility to probe the concentration of key metabolites in living cells. The approaches currently used to generate Such fluorescent sensor proteins lack. generality, as they require a protein that ...

2009

Quantum Yield Measurement of Fluorescent Zeolite Nanopigments

Libero Zuppiroli, Rolando Ferrini

Organic fluorescent molecules are infiltrated in the channels of zeolite L nanocrystals, thus creating organic-inorganic fluorescent nanoparticles. Combined with dielectric matrices, these fluorescent nanopigments open the way to the realization of novel o ...

Wiley-Blackwell2009

Phototocatalytic Lithography of Poly(propylene sulfide) Block Copolymers: Toward High-Throughput Nanolithography for Biomolecular Arraying Applications

Jeffrey Alan Hubbell

Photocatalytic lithography (PCL) is an inexpensive, fast, and robust method of oxidizing surface chemical moieties to produce patterned substrates. This technique has utility in basic biological research as well as various biochip applications. We report o ...

2009

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