The study presented by the authors is devoted to of properties and possibility using technical cellulose from non-wood plant raw materials as a solid-phase matrix obtain reactive indicator systems following methods: synthesis method on base hetarylformazane immobilized development analytical based preconcentration determined metal ion with subsequent its «revealing» formazan («revealing» method...

The presence of dyes in wastewater effluent of textile industry is well documented. In contrast, the endocrine disrupting effects of these dyes and wastewater effluent have been poorly investigated. Herein, we studied twenty-three commercial dyes, usually used in the textile industry, and extracts of blue jean textile wastewater samples were evaluated for their agonistic and antagonistic estrog...

In this study, the separation parameters in micellar electrokinetic chromatography (MEKC)-laser-induced fluorescence (LIF) were optimized for the separation of red and yellow historical dyes in 20 mM borate buffer with 20 mM sodium dodecyl sulfate (SDS). Separation conditions were optimized by changing pH, organic modifier (methanol and acetonitrile) concentrations and applied voltage. The mixt...

Fluorescent dyes are increasingly being exploited to track lymphocyte migration and proliferation. The present paper reviews the properties and performance of some 14 different fluorescent dyes that have been used during the last 20 years to monitor lymphocyte migration. Of the 14 dyes discussed, two stand out as being the most versatile in terms of long-term tracking of lymphocytes and their a...

background and purpose:the presence of dyes in wastewaters may cause serious problems for the environment because of their high toxicity to aquatic organisms and unfavorable aesthetical impact. in the present study, multi-walled carbon nanotubes (mwcnts) were used for removal of anionic dyes direct blue 106 (db106) and acid green 25 (ag25), from water samples. materials and methods:mwcnts were ...

introduction: the powdered activated carbon treatment (pact) has been proposed as an alternative in wastewater treatment and wastewater biomass protection against toxic substances. this study aims to evaluate pact performance in treating dyes, acid orange, and remazol brilliant reactive blue. methods: this empirical- applied research was carried out in pilot scale in which different dye removal...

The MTT antibacterial assay is an important method in natural component discovery. Researchers can use the to quickly and efficiently evaluate activity of compounds. aim this research was find a reduce background colour bacterial cell interference when using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) study effect phytochemicals. This used NZ ‘Hass’ ripe avocado seed ext...

Near-infrared (near-IR, NIR) dyes offer important advantages over traditional visible light dyes. Because cellular or tissue components produce minimal autofluorescence in the near-IR region, near-IR dyes have the potential to offer highly specific and sensitive detection in complex biological systems. Also, because light with wavelength in the near-IR region has strong tissue penetration, near...

Complexation of metallic silver nano particles (NPs) with Pyrromethene laser dyes (PM567, PM597) has significant effect on lifetime, photostability and the fluorescence efficiency. These enhancement of optical properties of the complex in solution due to surface Plasmon resonance (SPR) have been promised higher efficiencies in case of [40% Ag NPs: PM dye] complexes for dye laser systems. The fl...