The chemistry, electronic structure, and electron injection characteristics at interfaces formed between tris~8-hydroxy quinoline! aluminum (Alq3) and magnesium ~Mg! and aluminum ~Al! are studied via x-ray photoemission spectroscopy, ultraviolet photoemission spectroscopy, and current– voltage (I – V) measurements. Both metal-on-Alq3 and Alq3-on-metal interfaces are investigated. All interfaces...

The in vitro antimicrobial activity of ciprofloxacin (Bay o 9867) was compared with those of the other new fluorated piperazinyl-substituted quinoline derivatives: norfloxacin, ofloxacin, and pefloxacin, as well as with those of the earlier analogs, nalidixic acid and oxolinic acid. Virtually no resistance against the new fluorated piperazinyl-substituted quinoline derivatives was observed. As ...

Large and small aggregates of Aβ peptides, resembling the morphology and dimensions of fibrillar and oligomeric forms of Aβ respectively, relevant to Alzheimer's disease, are stabilized on electrodes using self-assembly. Both of these forms were found to bind redox active Cu and heme, resulting in active sites having distinctive biophysical properties. The reduced metal bound Aβ active sites of...

A Pseudomonas sp. isolated from sewage by enrichment culture on quinoline metabolized this substrate by a novel pathway involving 8-hydroxycoumarin. During early growth of the organism on quinoline, 2-hydroxyquinoline accumulated as the intermediate; 8-hydroxycoumarin accumulated as the major metabolite on further incubation. 2,8-Dihydroxyquinoline and 2,3-dihydroxyphenylpropionic acid were ide...

P25 film, prepared by a facile dip-coating method without any binder, was further developed in a recirculating reactor for quinoline removal from synthetic wastewater. Macroporous foam Ni, which has an open three-dimensional network structure, was utilized as a substrate to make good use of UV rays. Field emission scanning electron microscopy and X-ray diffraction analysis showed that the coate...

The objective of this study was to investigate the impact of bacterial biomass on the sorption and transport of three solutes (quinoline, naphthalene, and Ca) in a subsurface soil. Miscible displacement techniques were employed to measure sorption and transport of the above compounds during steady, saturated water flow in sterile and/or bacterium-inoculated soil columns. The soil was inoculated...

Quinoline, which belongs to N-heterocyclic compounds, occurs naturally in the environment and is used in numerous industrial processes. The structures of various chemicals, such as dyes and medicines, are based on this compound. Due to that fact, quinoline and its derivatives are widely distributed in environment and can exert toxic effects on organisms from different trophic levels. The abilit...