Now showing items 11-20 of 9036
Evaluation of the polarity of polyamide surfaces using the fluorescence emission of pyrene
(Elsevier Sci LtdOxfordInglaterra, 2008)
Analysis of the color and fluorescence alterations of enamel and dentin treated with hydrogen peroxide
The aim of this study was to evaluate the effect of hydrogen peroxide whitening on fluorescence and color of bovine enamel and dentin. Twenty five dentin discs and 25 enamel discs, with 6 mm diameter and 1 mm thick, were ...
Simultaneous observation of collagen and elastin in normal and pathological tissues: analysis of Sirius-red-stained sections by fluorescence microscopy
In order to observe collagen and elastic fibers simultaneously, sections of human aorta, skin, lung, liver, and bladder were stained by Sirius red and analyzed by fluorescence microscopy. In all cases, the fibers of collagen ...
Plasmon-Enhanced Scattering and Fluorescence Used for Ultrasensitive Detection in Langmuir-Blodgett Monolayers
The artificial bilayer structures of lipids and phospholipids can be fabricated using the Langmuir-Blodgett (LB) technique. High sensitivity and ultrasensitive detection can only be achieved using plasmon-enhanced spectroscopy, ...
Mapping the fluorescence performance of a photochromic-fluorescent system coupled with gold nanoparticles at the single molecule-single particle level
(American Chemical Society, 2014-04)
Single-molecule (SM) fluorescence microscopy was used to investigate the photochromic fluorescent system spiropyran-merocyanine (SP - MC) interacting with gold nanoparticles (AuNPs). We observe a significant increase in ...
The influence of zero-value subtraction on the performance of two laser fluorescence devices for detecting occlusal caries in vitro
Background. The aim of this study was to evaluate the influence of zero-value subtraction on the performance of two laser fluorescence (LF) devices developed to detect occlusal caries. Methods. The authors selected 119 ...
The role of viscosity in the fluorescence behavior of the diesel/biodiesel blends
Recently, the potentiality of fluorescence spectroscopy to be used in the quantification of biodiesel content in diesel/biodiesel blends (DBB) was demonstrated. However, the source of the fluorescence dependence of the DBB ...
A new model for tubular fluorescent lamps operated at high frequencies for dimmable applications
This paper presents a new static model for tubular fluorescent lamps (T12 bulb) operated at high frequencies. The main goal of this paper is to investigate the effects of ambient temperature and nominal switching frequency ...