نتایج جستجو برای: sonication conditions

تعداد نتایج: 850823  

2015
Yoshimasa Yamamoto

Sonication has been used in many studies that require observation of the cells of Microcystis aeruginosa. This study investigates the extent to which sonication (42 kHz, 150 W) destroys live and Lugol-fixed cells of M. aeruginosa, using two strains (NIES-1090 and NIES-1157). Live cells were easily destroyed by sonication regardless of growth stage. Sonication for 50 s caused up to 32.8% (NIES-1...

Journal: :Water research 2007
Kuan-Yeow Show Taohong Mao Duu-Jong Lee

This study presents an examination on the correlation of sonication operating condition, sludge property, formation and behaviour of cavitation bubbles in sludge disruption under low-frequency ultrasound sonication. The influence of sonication time, sonication density, type of sludge and solids content on the disruption was evaluated. The most vigorous particle disruption was achieved in the in...

Journal: :Applied microbiology 1975
G R Burleson T M Murray M Pollard

Selected organisms with public health significance were placed in a reaction chamber for treatment by ozonation, by ozonation and sonication, by sonication, or by sonication during oxygenation. Vesicular stomatitis virus, encephalomyocarditis virus, GDVII virus, Staphylococcus aureus, Pseudomonas fluorescens, Salmonella typhimurium, enteropathogenic Escherichia coli, Vibrio cholerae, and Shigel...

Journal: :Journal of clinical microbiology 2014
Maysa Harumi Yano Giselle Burlamaqui Klautau Cely Barreto da Silva Stanley Nigro Osmar Avanzi Marcelo Tomanink Mercadante Mauro Jose Costa Salles

Previous studies have shown that sonication fluid cultures from removed orthopedic devices improved the microbiological diagnosis of orthopedic implant-associated infections; however, few of these investigations have applied sonication to the removed fracture fixation devices to evaluate its utility for the diagnosis of osteosynthesis-associated infection (OAI). We compared sonication fluid to ...

2012
Joshua A. Thompson Karena W. Chapman William J. Koros Christopher W. Jones Sankar Nair

1387-1811/$ see front matter 2012 Elsevier Inc. A http://dx.doi.org/10.1016/j.micromeso.2012.03.052 ⇑ Corresponding authors. E-mail addresses: [email protected] (C.W. Jo ch.edu (S. Nair). The effect of typical membrane processing conditions on the structure, interfacial morphology, and gas separation performance of MOF/polymer nanocomposite membranes is investigated. In particular, the ZIF...

Journal: :Molecules 2016
Zhipan Wu Rongfa Guan Fei Lyu Mingqi Liu Jianguo Gao Guozou Cao

The main purpose of this study was to optimize the preparation of lysozyme nanoliposomes using response surface methodology and measure their stability. The stabilities of lysozyme nanoliposomes in simulated gastrointestinal fluid (SGF), simulated intestinal fluid (SIF), as well as pH, temperature and sonication treatment time were evaluated. Reverse-phase evaporation method is an easy, speedy,...

2014
Maysa Harumi Yano Giselle Burlamaqui Klautau Cely Barreto da Silva Stanley Nigro Osmar Avanzi Marcelo Tomanink Mercadante Mauro Jose Costa Salles Mauro Jose Costa

20 Previous studies have shown that sonication-fluid cultures from removed devices improved the 21 microbiological diagnosis of orthopedic implant-associated infections; however, few of these 22 investigations have applied sonication to the removed fracture-fixation devices to evaluate its 23 utility as an adjunctive diagnostic tool for osteosynthesis-associated infection (OAI). We 24 compared ...

2011
Joris Stegen

A dispersion of individualised carbon nanotubes is commonly obtained by means of sonication. Under sonication bundles of nanotubes are debundled, a process known as exfoliation. During sonication small bubbles within a liquid are brought into oscillation by an acoustic field. Under certain conditions these oscillations can end in the violent collapse of the bubble. This disruptive process dispe...

Journal: :Journal of colloid and interface science 2004
F Franco L A Pérez-Maqueda J L Pérez-Rodríguez

The present study examined the effect of sonication on the particle size and structure of a well-crystallized (KGa-1) kaolinite from Georgia. Sonication produced an important delamination effect as well as a reduction of the other particle-size dimensions. The experiments, carried out under different experimental conditions, showed that particle-size reduction can be controlled through differen...

Journal: :Nanotoxicology 2013
Julian S Taurozzi Vincent A Hackley Mark R Wiesner

We describe a comprehensive optimisation study culminating in a standardised and validated approach for the preparation of titanium dioxide (TiO₂) nanoparticle dispersions in relevant biological media. This study utilises a TiO₂ reference nanomaterial based on a commercially available powder that has been widely examined in both acute and chronic toxicity studies. The dispersion approach as pre...

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