The development of flat woven fabric-based ionizing radiation 2D dosimeters is reported in this work. Polyamide fabric was surface modified with radiation-sensitive 2,3,5-triphenyltetrazolium chloride (TTC) or nitro blue tetrazolium chloride (NBT). These samples responded to gamma radiation of 6...

Improved performance in terms of dependence on humidity and irradiation temperature for radio-chromic film dosimeters with high dose range was achieved based on radiation-induced reduction of NBT2+. NBT-PVB film dosimeters containing different concentrations of NBT dye from 8 to 12 mM were prepa...

DNA staining in gels has historically been carried out using silver staining and fluorescent dyes like ethidium bromide and SYBR Green I (SGI). Using fluorescent dyes allows recovery of the analyte, but requires instruments such as a transilluminator or fluorimeter to visualize the DNA. Here we ...

Nitro blue tetrazolium polyvinyl alcohol film dosimeters, NBT-PVA were prepared and evaluated based on radiation-induced reduction of NBT2+. NBT-PVA film dosimeters containing different concentrations of NBT dye from 1 to 5 mM were prepared in a solution of ethanol. The dosimeters were irradiate...

Nitro-blue tetrazolium polyvinyl butyral film dosimeters (NBT-PVB) were prepared and investigated based on radiation-induced reduction of NBT2+. NBT-PVB film dosimeters containing different concentrations of NBT dye from 1 to 5 mM were prepared in a solution of ethanol. The dosimeters were irrad...

Determination of the superoxide dismutase activity is an important issue in the fields of biochemistry and the medical sciences. In the riboflavin/nitro blue tetrazolium (B2/NBT) method, the light sources used for generating superoxide anion radicals from light-excited riboflavin are normally fl...

This paper reports on the preparation and features of a UV light dosimeter composed of nitro blue tetrazolium chloride (NBT) and polyamide woven fabric. This textile dosimeter is based on the conversion reaction of NBT into formazan, which was initially examined in aerated aqueous solutions thro...

A radiochromic sensor of nitro blue tetrazolium (NBT) in gelatin was evaluated as a new gel dosimeter for radiation applications. The NBT gel has the advantage of visual color change from faint yellow to violet at low absorbed doses (10–1000 Gy). This color change appears as a result of the red...

Bacteria in thin soil sections were stained with the fluorescent brightener calcofluor white M2R. The fluorochrome was applied to the soil sample after fixation and before embedding in a polyester resin. Thin soil sections were prepared from the hardened blocks. Acridine orange, applied to the p...

A novel pyrido[1,2-a]benzimidazole-rhodamine ratiometric fluorescent probe TMUHg-3 for Hg2+ based on a fluorescence resonance energy transfer mechanism has been developed. In this system, the energy transfer efficiency is 87.3%. The probe can detect Hg2+ with a very low detection limit of 18.8 n...

Some triazene-stilbene fluorescent brighteners containing methacrylic groups have been synthesised. Their fluorescence and absorption characteristics in solution in water, methanol, ethanol and dioxane are reported, and studies made on their copolymerisation with styrene and on their bleaching e...

New type of aromatic polyamide/montmorillonite nanocomposites were produced using solution intercalation technique in N-methyl-2-pyrrolidone. High-molecular-weight amide chains were synthesized from 4,4′-diaminodiphenyl ether and 4-phenylenediacrylic acid in N-methyl-2-pyrrolidone. The resultin...

The N-(2-(trimethylsilyloxy)phenyl)acetamide 1 was synthesized via reaction of N-(2-hydroxyphenyl)acetamide with chlorotrimethylsilane. Transsilylation of new compound 1 by chloro(chloromethyl)dimethylsilane leads to 4-acetyl-2,2-dimethyl-3,4-dihydro-2H-1,4,2-benzoxazasiline 3. The structures of...

We report a 2-(4-amino-2-hydroxyphenyl)benzothiazole based Schiff-base, found to be sensitive to the presence of HSO4− and I− ions as demonstrated by modulation of the various photophysical properties in the presence of these ions in solution and biological enviornments (nematodes). Various spec...

Five new diorganotin(IV) compounds were prepared by reacting diorganotin dichlorides R2SnCl2 (R = Me, nBu and Ph) with sodium salts of the tridentate NO2 ligands (E)-3-hydroxy-2-((2-hydroxybenzylidene)amino)propanoic acid (L1H2Na) and (E)-3-hydroxy-2-((1-(2-hydroxyphenyl)ethylidene)amino)propano...

A series of 4-(N-phenyl-N′-substituted benzenesulfonyl)-6-(4-hydroxyphenyl)quinolines was designed, synthesized and evaluated for their biological potential as anticancer agents by screening the molecules against panel of five human cancer cell lines viz. HL-60, MiaPaCa-2, HCT116, PC-3 and HEP-...

4-(4′-diamino-di-phenyl)-sulfone supported on hollow magnetic mesoporous (HMMS) Fe3O4@SiO2 NPs has been used as a novel and efficient catalyst in the preparation of ethyl 2-amino-5,10-dihydro-5,10-dioxo-4-phenyl-4H benzo[g]chromene-3-carboxylates by a simple one-pot three-component reaction of ...

This work presents the characterization of 4-ethyl-5-(2-hydroxyphenyl)-2H-1,2,4-triazole-3(4H)-thione (III) by quantum chemical calculations and spectral techniques. The molecular geometry, vibrational frequencies and gauge including atomic orbital (GIAO) 1H and 13C NMR chemical shift values of ...

4-Amino-1,2-dihydro-5-(2-hydroxyphenyl)-3H-pyrazol-3-ones 2a–c and 5-amino-6-(2-hydroxyphenyl)pyrimidin-4(3H)-ones 3a–f were synthesized from 4-methoxy- and 4-hydroxy-3-nitrocoumarins, and tested for analgesic activity upon oral administration to mice. Most of the compounds prepared exhibited ...

As operation performance of electro-oxidation is strongly influenced by feature of anode materials, apparently oriented preparation of electrode materials to maximize stable degradation efficiency would be top-priority consideration for system optimization. Recently, heteroatoms hybrid graphene ...