Results 11 to 20 of about 3,158,880 (294)

Some methods of luminescence efficiency measurements

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1976
Methods of absolute and relative radiant and quantum efficiency measurements are described for ultraviolet, visible, cathode-ray, and x-ray excitations. Data on some standard luminescent materials are given.
Bril, Alfred, de Jager-Veenis, A. Willy
openaire   +3 more sources

Effects of surfactants on luminescence intensity and duration of the minimal luciferase picALuc [PDF]

open access: yesBiophysics and Physicobiology
Bioluminescence is an oxidation-mediated chemical reaction involving the luciferase enzyme and the luciferin substrate. To date, various artificial luciferases have been developed, and their luminescence properties have been investigated.
Yuki Ohmuro-Matsuyama   +8 more
doaj   +2 more sources

Synthesis and charaterisation of phosphorescent copper (I) complexes for light emitting devices [PDF]

open access: yes, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Over the last decade, many significant developments have been made to improve the active materials in a new generation of organic light emitting devices ...
Andrés-Tomé, María Inmaculada
core   +6 more sources

Water‐Soluble Luminescent Trityl Radical for Fluorescence/Magnetic Resonance Dual‐Modal Imaging Probe [PDF]

open access: yesAdvanced Science, EarlyView.
Stable water‐soluble luminescent tris(2,4,6‐trichlorophenyl)methyl (TTM) radicals, TTM‐trisTP3B and TTM‐trisTP9B, were designed and successfully synthesized. They exhibited deep‐red emissions and high photostability in water. TTM‐trisTP3B exhibited dual functionality as a fluorescence imaging (FI) probe and a magnetic resonance imaging (MRI) contrast ...
Kosuke Anraku   +6 more
wiley   +2 more sources

Spatially Resolved Optical Efficiency Measurements of Luminescent Solar Concentrators. [PDF]

open access: yes, 2023
Luminescent solar concentrators (LSCs) are able to concentrate both direct and diffuse solar radiation, and this ability has led to great interest in using them to improve solar energy capture when coupled to traditional photovoltaics (PV). In principle,
Tomi K. Baikie (7467284)   +9 more
core   +5 more sources

Preliminary Investigation on the Physiology and Ecology of Luminescence in the Copepod, Metridia lucens [PDF]

open access: yes, 1961
1. Skin glands believed to be the source of luminescence were found on the anterior portion of the head, on the last thoracic segment, and on the posterior margins of each segment of the abdomen. 2. The maximum intensity of the luminescent flash was 1.2
Conover, Robert J.   +4 more
core   +1 more source

Image-Processing Software for High-Throughput Quantification of Colony Luminescence

open access: yesmSphere, 2019
Many microbiological assays include colonies that produce a luminescent or fluorescent (here generalized as “luminescent”) signal, often in the form of luminescent halos around the colonies.
Eyal Dafni   +4 more
doaj   +1 more source

N,N-Dimethyl-4-amino-2,1,3-benzothiadiazole: Synthesis and Luminescent Solvatochromism

open access: yesChemistry Proceedings, 2021
N,N-Dimethyl-4-amino-2,1,3-benzothiadiazole (BTDNMe2) was synthesized from the commercially available 2,1,3-benzothiadiazole (BTD) by nitration in a sulfonitric mixture, followed by a reduction of the nitro group and subsequent methylation with ...
Valentina Ferraro   +2 more
doaj   +1 more source

Influence of Light Conditions and Light Sources on Clinical Measurement of Natural Teeth Color using VITA Easyshade Advance 4.0® Spectrophotometer: Pilot Study

open access: yesActa Stomatologica Croatica, 2016
Objectives: The purpose of this study was to evaluate and compare lightness (L), chroma (C) and hue (h), green-red (a) and blue-yellow (b) character of the color of maxillary right central incisors in different light conditions and light sources ...
Ivona Posavec   +2 more
doaj   +1 more source

Characterizing the luminescent properties of upconversion nanoparticles in single and densely packed state [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2019
Luminescent properties of Er3+- and Yb3+- co-doped CaF2 upconversion nanoparticles (UCNPs) were investigated in single particle and densely-packed states with a custom-built microscope.
Xiaohu Chen   +9 more
doaj   +1 more source

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