منابع مشابه
Chemical Sensing Using Indicator Dyes
T h i s chapter describes the des ign, f a b r i c a t i o n , a n d propert ies of mater ia ls that respond to the presence of a chemical species by a change i n their opt ical properties. Ideally, such effects are reversible. They may be detected by conventional methods of absorpt ion, reflection, or luminescence spectrometry, a n d appl ied i n various formats such as test strips and disposa...
متن کاملCaffeine interaction with fluorescent calcium indicator dyes.
We report that caffeine, in millimolar concentrations, interacts strongly with four common calcium indicator dyes: mag-fura-2, magnesium green, fura-2, and fluo-3. Fluorescence intensities are either noticeably enhanced (mag-fura-2, fura-2) or diminished (magnesium green, fluo-3). The caffeine-induced changes in the fluorescence spectra are clearly distinct from those of metal ion binding at th...
متن کاملEndosomal accumulation of pH indicator dyes delivered as acetoxymethyl esters.
Intracellular distributions of the putative cytosolic pH indicator dyes BCECF [2',7'-bis-(2-carboxyethyl)-5(and 6)-carboxyfluorescein], C.SNARF [5(and 6)-carboxy-seminaphthorhodafluor-1], and C.SNARF-calcein have been examined in Neurospora crassa and in murine fibroblasts (NIH-3T3 cells) under conditions in which both kinds of cells produce visible microscopic vacuoles. All three dyes were adm...
متن کاملAcid-base indicator properties of dyes from local plants I: Dyes from Basella alba (Indian spinach) and Hibiscus sabdariffa (Zobo)
The acid-base indicator properties of aqueous and ethanol extracts from calyces of H. sabdariffa (Zobo) and a dye obtained from the ripe fruits of Basella alba (Indian spinach), two local plants, were investigated. A purple coloured dye obtained from the ripe fruits of Basella alba showed a λmax at 580nm, absorptivity of 0.2269 and was found to be photochemically unstable. A deep red coloured d...
متن کاملThin-film Photovoltaic Proton and Electron Radiation
A radiation test plan for thin-film photovoltaic technologies focused on a MEO flight experiment is outlined. The proton and electron radiation response of thin film, amorphous Si solar cells and CuInGaSe2 solar cells, with and without space coatings, is presented. The degradation of the photovoltaic output under penetrating and junction-damaging proton irradiation, and 0.6 MeV and 1 MeV electr...
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ژورنال
عنوان ژورنال: FOOD IRRADIATION, JAPAN
سال: 1967
ISSN: 1884-3611,0387-1975
DOI: 10.5986/jrafi.2.132