This study reports the successful fabrication of complex 3D metal nanoparticle–polymer nanocomposites using two-photon polymerization (2PP). Three complementary strategies are detailed: in situ formation nanoparticles (MeNPs) through a single-step photoreduction process, integration pre-formed MeNPs into 2PP resin, and site-selective decoration structures. In strategy, phase-transfer method is ...

ABSTRACT. Three compounds, phenyl propenone, p-tolyl and bromo phenylpropenone derivatives 3a-c were produced in good yields via condensation of acetophenone with dimethyl formamide acetal (DMFDMA) presence xylene as a solvent. Compounds 5a-f by coupling the enaminones diazonium chloride 4a or 4b. reacted acetone to create novel disperse dyes 9a-f. Mass spectra, (FT-IR), elemental analysis, 1H-...

1- introductionthe presence of synthetic dyes in water and wastewater causes toxicity to aquatic life and bacteria and changes the brightness, color and clarity of the water. common treatment methods for these compounds are not capable of complete mineralization. therefore, new methods are needed to maximize the efficiency. among them, advanced oxygen processes (aops), especially photocatalytic...

1. Neonate evergreen bagworms, Thyridopteryx ephemeraeformis (Haworth) (Lepidoptera: Psychidae), disperse by dropping on a strand of silk, termed silking, and ballooning on the wind. Larvae construct silken bags with fragments of plant foliage. This species is highly polyphagous, feeding on more than 125 species of woody plants of 45 families. The larvae commonly infests juniper (Juniperus spp....

water plays a vital and essential role in our ecosystem. this natural resource is becoming scarce, making its availability a major social and economic concern. use of a large variety of synthetic dyes in textile industries has raised an hazardous environmental alert. about 17 - 20% of freshwater pollution is caused by textile effluents. these effluents are recalcitrant to biodegradation and cau...

The averaged dynamics of various two-phase systems in a high-frequency vibration field is studied theoretically. The continuum approach is applied to describe such systems as solid particle suspensions, emulsions, bubbly fluids, when the volume concentration of the disperse phase is small and gravity is insignificant. The dynamics of the disperse system is considered by means of the method of a...