Abstract The extensive research and interest in dye-sensitized solar cells (DSSCs) due to their relatively low cost, simple preparation methodology, toxicity, comparable ease of production continues garner momentum over recent decades. This study explores the extraction purification dyes from different plant sources for cell applications. results obtained these extracts commonly serve societies...

Reducing pollution in various industries such as textile is very important. In this paper, two parallel methods were used to reduce of the process and application dye. The first approach was selection plant-based dyes (Madder with botanical name Rubia tinctorum Reseda odorata) a tannin-based mordant (pomegranate peel Punica granatum). second extraction dyeing ultrasound media. efficiency madder...

We demonstrate that the emission of light by fluorescent molecules in the proximity of periodic arrays of nanoantennas or plasmonic crystals can be strongly modified when the arrays are covered by a dielectric film. The coupling between localized surface plasmon resonances and photonic states leads to surface modes which increase the density of optical states and improve light extraction. Excit...

Liquid-liquid extractive-spectrophotometric studies of sodium ion complexes of 18crown-6(18C6), dibenzo-18-crown-6(DB18C6), 15-crown-5(15C5), and 12-crown-4(12C4) and anionic dyes [4-(2-pyridylazo)-resorcinol monosodium salt monohydrate (PAR), Eriochrom Black T (EBT), and methyl orange (MOR)] and sodium picrate (PICRAT) as the counter ion are described. The overall extraction equilibrium consta...

1. The renal excretion of phenol red and other phenolsulphophthalein dyes (bromophenol blue and bromothymol blue) was studied in clearance experiments on anaesthetized rabbits. 2. Net tubular excretion of phenol red reached a maximal value of 8 mumole/min at a plasma concentration of ultrafiltrable dye of about 0.1 mM and was decreased at higher plasma concentrations. Decreases in net tubular e...

Three new, simple, rapid and sensitive spectrophotometric methods have been developed for the assay of mebendazole (MBD) in bulk drug, tablets and suspension. First method (method A) is based on the formation of a colored ion-pair complex (1:1 drug/dye) of MBD with bromocresol green (BCG) at pH 1.99 ± 0.01 and extraction of complex into chloroform followed by measurement of yellow ion-pair comp...

OBJECTIVE Loss of endothelial barrier function in arterial blood vessels is characteristic of vascular pathologies, including atherosclerosis. Here, we present a near-infrared fluorescence (NIRF) imaging methodology for quantifying endothelial permeability and macromolecular uptake in large arteries in the mouse and evaluate its applicability for studying mechanisms of vascular inflammation. ...

The quality of surface water and groundwater is closely related to flow paths in the vadose zone. Therefore, dye tracer studies are often carried out to visualise flow patterns in soils. These experiments provide images of stained soil profiles and their evaluation demands knowledge in hydrology as well as in image analysis and statistics. The classical analysis consists of image classification...

Two new, simple, rapid and reproducible spectrophotometric methods have been developed for the determination of lamotrigine (LMT) both in pure form and in its tablets. The first method (method A) is based on the formation of a colored ion-pair complex (1:1 drug/dye) of LMT with bromocresol green (BCG) at pH 5.02±0.01 and extraction of the complex into dichloromethane followed by the measurement...

The passage of fluorescein dye, injected into the general circulation, from the posterior to the anterior chamber was studied in 60 selected aphakic eyes between 2 days and 4 weeks after an uneventful cataract extraction. In a group of 22 eyes with intact anterior hyaloid, fluorescein was seen to pass only through the pupillary margin, mostly within 20 seconds of the beginning of the eye inject...