ultrasonic irradiation
Peanut shell as a green biomolecule support for anchoring Cu2O: a biocatalyst for green synthesis of 1,2,3-triazoles under ultrasonic irradiation
... Cu 2 O supported on peanut shell (Cu 2 O@PS) was prepared by the reaction of copper acetate and peanut shell powder as a naturally available biopolymer support. The prepared catalyst was used as an efficient and reusable ...
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Froth Separation of Ferrihydrite Slurry Using Microbubbles with Ultrasonic Irradiation
... by ultrasonic irradiation at a frequency of 430 ...sonic irradiation, the ferrihydrite particles were hardly separated after 1 min, and consequently the boundary between the clarified water and slurry ...
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Hantzsch synthesis of 5-Indolylpyrimidopyrido[2,3-d]pyrimidinones using PTSA under ultrasonic irradiation in aqueous medium
... Therefore, Here, in our research programme devoted to the synthesis of different heterocycles incorporated indole moity [26-29], we planned to synthesize novel 5-Indolylpyrimidopyrido[2,3-d]pyrimidinones by ...
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Biodiesel from Soybean Oil Transesterification Assisted by Ultrasonic Irradiation
... transfer. Ultrasonic energy is known to produce unique chemical and physical effects because of the growth and the collapse of cavitations ...frequency ultrasonic irradiation can be used to produce ...
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Input power mechanism relationship for ultrasonic Irradiation: Food and polymer applications
... 5) ultrasonic degradation is based on cavitation effects produced by ultrasound waves; 6) deg- radation as well as depolymerisation occurs as a result of elongational flow fields, thus producing a less viscous ...
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Synthesis, characterization and photocatalytic properties of Iron oxide nanoparticles synthesized by sol-gel autocombustion with ultrasonic irradiation
... UV–Vis diffuse reflectance spectra of Fe 2 O 3 prepared by sol-gel autocombustion with ultrasonic irradiation were collected. It can be clearly seen from Fig. 5 that absorbance of Fe 2 O 3 is in the range ...
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Effects of Molar Ratio, Alkali Catalyst Concentration and Temperature on Transesterification of Jatropha Oil with Methanol under Ultrasonic Irradiation
... Low-frequency ultrasonic irradiation is useful tool for emulsification of immiscible ...by ultrasonic jets that impinge one liquid on another ...
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SYNTHESIS OF POTENTIAL ANTI INFLAMMATORY PYRAZOLINE DERIVATIVES UNDER ULTRASONIC IRRADIATION
... chromatography on pre-coated TLC plates (Silica gel 60-120#) by using solvent system Benzene: Ethanol [8:2] for Step-1 compounds and Dichloromethane: Ethyl acetate [9:1] for Step-2 compounds. The obtained TLC plates were ...
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Synthesis, characterization and biological applications of conducting poly o toludine in the absence and in the presence of ultrasonic irradiation
... of ultrasonic irradiation and they were characterized using UV, IR, TGA and ...of ultrasonic irradiation is more efficient than its ...of ultrasonic irradiation can pave way for ...
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Antibacterial response of Cd-TiO2/PEG/folic acid nanocomposite under ultraviolet, visible light, or ultrasonic irradiation
... or ultrasonic irradiation on antibacterial activity of the synthesized nanocomposite were ...light irradiation was maximized at ...under ultrasonic irradiation was improved and then ...
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SYNTHESIS OF[4+2] CYCLOADDITION REACTION BY USING BASE CATALYST UNDER ULTRASONIC IRRADIATION
... In conclude, we have discovered ahighly efficient one pot multicomponent (4+2) cycloaddition (Povarov) reaction with intermediate-imine and maleic anhydride catalyzed by piperidine under Ultrasonic ...
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Original Article Targeting silencing androgen receptor gene by shRNA with low-intensity focused ultrasonic irradiation inhibits growth of prostate cancer xenografts in nude mice
... Our xenograft tumor studies showed that AR shRNA injected intravenously is not only safe but also effective in knocking down AR and pre- venting growth of 22RV1 tumors. Upon immu- nohistochemical examination of AR and ...
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The effects of ultrasonic irradiation in combination with ozone on the reduction of residual ethion of tangerine (Citrus reticulata Blanco cv Sai Nam Pung) fruit after harvest
... an ultrasonic irra- diation (3W input power) device with different frequencies of 108, 400, 700, 1000 kHz, and to an ozone with a concentration of 200 mg· mL -1 with various exposure times (0, 15, 30, 45 and 60 ...
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Synthesis of Highly Concentrated Ag Nanoparticles in a Heterogeneous Solid Liquid System under Ultrasonic Irradiation
... As described above, high-concentration (about 100 g/L of Ag) synthesis of Ag nanoparticles was achieved by ultrasonic irradiation of a heterogeneous solid-liquid system. In tradi- tional homogeneous liquid ...
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Effects of Ultrasonic Irradiation on Preparation of Titanium Dioxide Photocatalyst by Anodic Oxidation Method
... of ultrasonic irradiation were studied. Ultrasonic irradiation during anodic oxidation improves the crystallinity of the anodic oxides, and an application of ultrasonic ...
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Effect of Ultrasonic Irradiation Conditions on Metal Surface during Multifunction Cavitation
... Recently, Yoshimura et al . developed multifunction cavitation (MFC) [7] processing, which is a cavitation technique that applies ultrasonic waves to WJP. It is possible to reform a material surface with MFC in ...
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Ultrasonic irradiation assisted efficient regioselective synthesis of CF3-containing pyrazoles catalyzed by Cu(OTf)2/Et3N
... Mass spectra were recorded on the Thermo ISQ Single Quadrupole GC-MS. The resulting products were identi- fied from their retention times by GC–MS analysis. Elemental analyses were carried out on EuroVector instrument C, ...
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The Effect of Ultrasonic Irradiation on the Survival of Daphnia Magna
... periods to various thermal and ultrasonic conditions The table shows the limits of ultrasonic power and temperature for 100% survival and 100% mortality.. 100% survival Circulation temp.[r] ...
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Comparison of Threshold Power between Methylene Blue Degradation and KI Oxidation Reaction Using Ultrasound
... Before ultrasonic irradiation, the sample so- lution and remaining space in the reactor were deoxygenated with a nitrogen gas flow for 20 min at 298 ...on ultrasonic frequency, and reaction field is ...
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... To evaluate the possibility of [Gmim]Cl-Fe(III) complex for a model reaction by a building block ratio of 1:1:1.2 of 4-metoxy benzaldehyde, ethyl acetoacetate and urea respectively to provide ethyl 4-(4- ...
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