A 5-amino-8-hydroxyquinoline (AHQ)-modified gold nanoparticle (GNP) layer was fabricated on an inner wall of a silica capillary column by alternatively passing a citrate-stabilized GNP solution and an AHQ solution in a repeating fashion. The observations by a field emission scanning electron microscope showed that the thickness of the resulting GNP layer was about 0.15 microm. This column was t...

A very simple, ultra-sensitive and highly selective non-extractive spectrophotometric method for the determination of trace amount of molybdenum(VI) using 5,7-dibromo-8-hydroxyquinoline (DBHQ) has been developed. 5,7-Dibromo-8-hydroxyquinoline reacts in a slightly acidic solution (0.05 - 1.0 M H2SO4) with molybdenum(VI) to give a deep greenish-yellow chelate which has an absorption maximum at 4...

The formation of DNA-strand breaks was studied in cultured human lung cells (A 549) subjected to iron, either in the form of iron(III) citrate or in combination with the metal chelators ethylene diamine tetra-acetic acid (EDTA), nitrilo triacetic acid (NTA), or 8-hydroxyquinoline (8HQ). After 15 min exposure to 5 microM iron(III) citrate or iron chelate, the cellular levels of iron were found t...

Articles you may be interested in White light emission from exciplex using tris-(8-hydroxyquinoline)aluminum as chromaticity-tuning layer Appl. Radiative recombination mechanisms in aluminum tris(8-hydroxyquinoline): Evidence for triplet exciton recombination Electroabsorption spectroscopy on tris-(8-hydroxyquinoline) aluminum-based light emitting diodes

8-Hydroxyquinoline and derivatives exhibit multifunctional properties, including antioxidant, antineurodegenerative, anticancer, anti-inflammatory and antidiabetic activities. In biological systems, elevation of intracellular calcium can cause calpain activation, leading to cell death. Here, the effect of 8-hydroxyquinoline and derivatives (5-chloro-7-iodo-8-hydroxyquinoline or clioquinol and 8...

ntroduction: ‘Perla’ and ‘Mexicano’ are varieties of tuberose grown in Mexico that have potential for commercialization export; however, no preservative solutions been evaluated to increase their shelf life. Objective: To determine physical, physiological, chemical changes occur postharvest when different applied. Methodology: Tuberose flower spikes Perla, with two open basal flowers, were plac...

Lilium cut flowers have commercial importance and extending their vase life is vital. An increase in the quality quantity can directly viability price realization of commercially important like lilium. Shelf lilium flower influenced by using different preservative chemicals sucrose added solution. Such an extension be achieved via chemical treatment. The trial was carried out to examine effect ...

1. Degradation of 125I-labelled [Ile5]-angiotensin I and unlabelled angiotensin I was studied during incubation of rat plasma treated with disodium ethylenediaminetetra-acetate (disodium EDTA) at 37 degrees C, pH 6.5, for 1 h with 8-hydroxyquinoline, phenylmethylsulphonyl fluoride or di-isopropyl fluorophosphate. 2. Isoelectric focusing showed approximately 100, 59--66 and 10--31% preservation ...