نتایج جستجو برای: microwave irradiation

تعداد نتایج: 112363  

Chen Grang Liu Bin Tang Ying, Wu Ya

5(6)-Carboxy-rhodamine 110 isomers were rapidly synthesized by condensation of 3-aminophenol and trimellitic anhydride using microwave irradiation as heating method. After esterification of the two isomers, separation and hydrolyzation provided target products,5-carboxy-rhodamine 110 and 6-carboxy-rhodamine 110, in high yields. The results shows microwave irradiation can effectively reduce ...

2017
Shigeki INOUE Fukumi HIRAGAMI Kenji KAWAMURA Hirotoshi MOTODA Akihiko KAWAURA Yoshio KANO Shigeki Inoue

The increasing use of mobile phone communication has raised concerns about possible health hazard effects of microwave irradiation. We investigated damage and differentiation of PC12 mutant cells (PC12m3 cells) caused by microwave irradiation. The frequency of neurite outgrowth induced by 2.45 GHz (200 W) of microwave irradiation was approximately 10-fold greater than that in non-irradiated con...

Journal: :journal of dental research, dental clinics, dental prospects 0
mahmood robati anaraki department of prosthodontics, faculty of dentistry, tabriz university of medical sciences, farzaneh lotfipour faculty of pharmacy, drug applied research center, tabriz university of medical sciences, tabriz, iran elnaz moslehifard department of prosthodontics, faculty of dentistry, tabriz university of medical sciences, tabriz, iran ali momtaheni private practice pooyan sigari faculty of dentistry, department of oral and maxillofacial surgery, kerman university of medical sciences, kerman, iran

background and aims. current chemical methods may not efficiently disinfect dental stone casts. the aim of this study was to investigate if microwave irradiation is effective for disinfection of stone casts. materials and methods. in this laboratory study, three groups (n = 162) of prepared spherical stone beads as carriers with a diameter of 10 mm were inoculated by separately soaking in three...

Whole soybeans serve as one of the main sources of protein in ruminant nutrition. Different processing methods have been employed for ruminal protein protection. The present study was conducted to determine the effects of microwave irradiation [900 W; 2, 4 and 6 min] on quality, ruminal degradability and estimated in vitro intestinal digestibility of availability soybean crude protein....

Journal: :journal of pharmaceutical and health sciences 0

a simple, fast, efficient and environmentally friendly method for synthesis of benzimidazole and its 2-alkyl, aryl and heteroaryl substituted derivatives was developed using zeolite hy. two component cyclolcondensation of 1,2-phenylenediamine (o-phenylenediamine) and commercially available carboxylic acids catalyzed by zeolite hy without any solvent, under microwave irradiation led to formation...

Journal: :iranian journal of science and technology (sciences) 2015
a. saberi

as benzimidazole ring is an important pharmacophore in modern drug discovery and benzimidazoles are very important intermediates in organic reactions, the preparation of benzimidazoles has gained considerable attention in recent years. here, a comparative study on the synthesis of benzimidazoles from aromatic, aliphatic and heterocyclic carboxylic acid, benzonitrile and o-phenylenediamine under...

Journal: :Physical chemistry chemical physics : PCCP 2015
Yugo Tasei Fumikazu Tanigawa Izuru Kawamura Teruaki Fujito Motoyasu Sato Akira Naito

Microwave heating effects are widely used in the acceleration of organic, polymerization and enzymatic reactions. These effects are primarily caused by the local heating induced by microwave irradiation. However, the detailed molecular mechanisms associated with microwave heating effects on the chemical reactions are not yet well understood. This study investigated the microwave heating effect ...

2017
Mamiko Asano Minoru Sakaguchi Satoshi Tanaka Keiichiro Kashimura Tomohiko Mitani Masaya Kawase Hitoshi Matsumura Takako Yamaguchi Yoshikazu Fujita Katsuyoshi Tabuse

We investigated the effects of microwave irradiation under normothermic conditions on cultured cells. For this study, we developed an irradiation system constituted with semiconductor microwave oscillator (2.45 GHz) and thermos-regulatory applicator, which could irradiate microwaves at varied output powers to maintain the temperature of cultured cells at 37 °C. Seven out of eight types of cultu...

2016
Anindya Siddharta Stephanie Pfaender Angelina Malassa Juliane Doerrbecker Anggakusuma Michael Engelmann Boya Nugraha Joerg Steinmann Daniel Todt Florian W. R. Vondran Pedro Mateu-Gelabert Christine Goffinet Eike Steinmann

Hepatitis C virus (HCV) and human immunodeficiency virus (HIV-1) transmissions among people who inject drugs (PWID) continue to pose a challenging global health problem. Here, we aimed to analyse a universally applicable inactivation procedure, namely microwave irradiation, as a safe and effective method to reduce the risk of viral transmission. The exposure of HCV from different genotypes to m...

2015

The major challenges for industrial commercialized biodiesel production from microalgae are the high cost of downstream processing such as dewatering and drying, utilization of large volumes of solvent and laborious extraction processes. In order to address these issues the microwave irradiation method was used to produce biodiesel directly from wet microalgae biomass. This alternative method o...

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