The development of a mild, general, and green method for the C-H arylation pyrazoles with relatively unreactive aryl halides is an ongoing challenge in organic synthesis. We describe herein novel sonophotoreactor based on ultrasonic cleaning bath blue LED light (visible light) that induce copper-catalyzed monoarylation pharmacologically relevant pyrazoles. hybrid effect irradiation discussed to...

This study examined the applicability of pomegranate peel extracts (PPE) and microencapsulated (MPE) in yogurts made with cow’s milk soy drink mixtures. For preparing PPE, powders were extracted by 50% ethanol an ultrasonic water bath. PPE was encapsulated using a spray dryer. Phytochemical composition antioxidant activity MPE determined 0.5% 1% used yogurt production. Physicochemical, rheologi...

One of the principal characteristics of the inspection of ceramic materials is the small size of the critical defects involved. In order to meet this challenge, either very high frequency techniques must be developed or conventional (low frequency) techniques must be used in special ways. This paper addresses the latter approach by investigating the use of commercial transducers combined with f...

The present work explores the best conditions for the enzymatic synthesis of poly (ethylene glutarate) for the first time. The start-up materials are the liquids; diethyl glutarate and ethylene glycol diacetate, without the need of addition of extra solvent. The reactions are catalyzed by lipase B from Candida antarctica immobilized on glycidyl methacrylate-ter-divinylbenzene-ter-ethylene glyco...

We have characterized the effects of ultrasound on fibrinolysis in vitro to investigate the mechanism of ultrasonic potentiation of fibrinolysis and to identify potentially useful ultrasound parameters for therapeutic application. Radiolabeled clots in thin walled tubes were exposed to ultrasound fields in a water bath at 37 degrees C, and lysis was measured by solubilization of radiolabel. Ult...

This work presents the validation procedures of an analytical method to determine the 16 PAHs from the US EPA's priority pollutants list in sediment samples using ultrasonic extraction coupled to gas chromatography-mass spectrometry. The extraction techniques are altered by the construction of an extraction flask adapted to the ultrasonic bath that greatly reduces losses and increases extractio...

Chemical spray pyrolysis (CSP) is a fast wet-chemical deposition method in which an aerosol is guided by carrier gas onto a hot substrate where the decomposition of the precursor chemicals occurs. The aerosol is produced using an ultrasonic oscillator in a bath of precursor solution and guided by compressed air. The use of the ultrasonic CSP resulted in the growth of homogeneous and well-adhere...

The effect of ultrasonic waves (US) was studied on the degradation of Malachite Green (MG) as a model contaminant from textile industry by direct photolysis with ultraviolet (UV) radiation and UV/H2O2 processes. The US (35 kHz) and UV (253.7 nm) radiations were carried out with an ultrasonic bath and a 15 W low-pressure mercury lamp, respectively. Degradation of MG follows pseudo-first order ki...

A rapid and simple method has been developed for the analysis in olive branches of two insecticides currently used in olive pest control, dimethoate and alpha-cypermethrin. The effects of analytical conditions on pesticide recovery and the optimal extraction conditions were evaluated by means of a factorial design. The use of this chemometric tool in analytical method development allows the ide...

Indwelling prostheses and subcutaneous delivery devices are now routinely and indispensably employed in medical practice. However, these same devices often provide a highly suitable surface for bacterial adhesion and colonization, resulting in the formation of complex, differentiated, and structured communities known as biofilms. The University of Washington Engineered Biomaterials group has de...