A novel glucose biosensor was fabricated. The first layer of the biosensor was polythionine, which was formed by the electrochemical polymerisation of the thionine monomer on a glassy carbon electrode. The remaining layers were coated with chitosan-MWCNTs, GOx, and the chitosan-PTFE film in sequence. The MWCNTs embedded in FAD were like "conductive wires" connecting FAD with electrode, reduced ...

The genus Desmodium is represented in Santa Catarina State, Brazil, by 13 species, all with lomen- taceous fruits. Shape, size and isthmus margin of loments vary, while the surface is glabrous, or covered by trichomes of different types. Morphological diversity of trichomes becomes particularly relevant to taxonomic description. The trichome types present on the surface of Desmodium fruits prov...

1. In cultures of Staphylococus aureus in a synthetic medium nicotinamide and cozymase were shown to block the bacteriostatic action of chemically unrelated sulfonamide drugs as well as the chemically related compound sulfapyridine. The antibacterial properties of organic dyes totally unrelated to the sulfonamide compounds (methylene blue and thionine) were also nullified by the addition of coz...

We aimed to document macroscopic variations in the cellular tapetum in the dog, to provide a histologic description of the macroscopic results and to evaluate the correlation between the macroscopic appearance and aging. Fifty three dogs including 5 beagles, 1 Chihuahua and 47 mixed breeds of each gender were used. For a macroscopic study, the fresh tapetal fundi were photographed using digital...

Titania nanotube (TNT) arrays were fabricated by anodic oxidation of titanium foil in various electrolytes and were calcined in dry nitrogen at various temperatures. The morphology, crystallinity, and chemical composition of TNT arrays were studied by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM). Electrochemical impedance spectroscopy (EIS) was employed to investigate...

BACKGROUND Prostate cancer is a disease of disrupted cell genomes. Quantification of DNA from cytology preparations can yield prognostic information about tissue biological behaviors; however, this process is very labor-intensive to perform. Quantitative digital pathology can measure the structural chromatin changes associated with neoplasia and can enable prognostic and predictive assays based...

Intramicellar radical pair formation and recombination kinetics in the electron transfer quenching of the thionine triplet by aniline and various monohalogenated anilines have been studied by microsecond and nanosecond laser flash spectroscopy in reversed micellar solution of COBA in benzene. Clear kinetic evidence of the micellar cage effect is provided by a comparative spectro-kinetical study...

Compounds with planar triple ring systems such as acridine orange, 9-amino acridine, 9-amino-1,2,3, 4-tetrahydroacridine (tacrine), 6,9-diamino-2-ethoxyacridine lactate monohydrate (DE-acridine), 6-chloro-9-(3'-diethylamino-2'-hydroxypropylamino)-2-methoxyacridine 2 HCI (CDM-acridine), quinacrine, 6-chloro-9(4'diethylamino1'-methylbutylamino) .2-methoxy. 1, 10-diazaanthracene (CDM 1, 10-diazaan...