نتایج جستجو برای: probe sonication

تعداد نتایج: 96481  

2015
Nelly Tan David Lu Steven Raman Simin Bahrami

Background/introduction Enhanced sonication (ES) is a newer technique to ablate symptomatic uterine fibroids. ES uses nearly twice the amount of energy and is able ablate nearly twice the region of interest compared to standard sonications. As a result, more volume of uterine fibroids are able to be treated within the same amount of time. The objective of the multi-center trial was to evaluate ...

Journal: :The Biochemical journal 1978
A W Davis D R Phillips

Concentrated solutions of low-molecular-weight DNA (Mw=35000) with a known molecular-weight distribution can be prepared in several hours, and require no additional fractionation procedures. This is achieved by sonication of the DNA in 1.0 M-NaCl at high power at 0--2 degrees C. No denaturation of the DNA is detectable, even after 8h of continuous sonication. After 2h, the molecular-weight dist...

Journal: :American journal of clinical pathology 2014
Erlangga Yusuf Julia Steinrücken Sophie Nordback Andrej Trampuz

OBJECTIVES To describe the use of sonication and microcalorimetry in diagnosing necrotizing fasciitis in a 27-year-old woman with bilateral breast implants. METHODS The removed breast implants were subjected to sonication and microcalorimetry. The microcalorimetry findings were correlated with conventional microbiologic methods. The time to detection of infection was noted. RESULTS The pati...

2013
Massimo Mariconda Tiziana Ascione Giovanni Balato Renato Rotondo Francesco Smeraglia Giovan Giuseppe Costa Marco Conte

BACKGROUND Culturing of the sonication fluid of removed implants has proven to be more sensitive than conventional periprosthetic tissue culture for the microbiological diagnosis of prosthetic joint infection. Since bacteria surviving on antibiotic-loaded cement spacers used in a two-stage exchange protocol for infected arthroplasties may cause the persistence of infection, in this study we ask...

2002
Thereza Christina Vessoni Penna Marina Ishii

BACKGROUND Transformed cells of Escherichia coli DH5-alpha with pGFPuv, induced by IPTG (isopropyl-beta-d-thiogalactopyranoside), express the green fluorescent protein (gfpuv) during growth phases. E. coli subjected to the combination of selective permeation by freezing/thawing/sonication cycles followed by the three-phase partitioning extraction (TPP) method were compared to the direct applica...

Journal: :Anticancer research 2010
Xiaomeng Huang Ryan Caddell Bo Yu Songlin Xu Brittany Theobald L James Lee Robert J Lee

BACKGROUND Liposomes have been successfully used as delivery vehicles for anticancer drugs. Both sonication and microfluidic technologies have been used to produce liposomes. The combination of the two methods was evaluated in this study. MATERIALS AND METHODS The microfluidic devices, mainly comprising micro-dispensers and a sonicator, were used to produce liposomal nanoparticles. Sonication...

2014
T. Sivakumar Dr. P. Senthil Kumar

Lignocellulosic wastes are used as feed stock since are abundantly available. The basic problems involved with bioethanol production from lignocellulosic wastes are high consumption of chemicals used for saccharification, delignification and glucose availability. These problems are considered as important themes of the present study. Ultrasound assisted saccharification was carried out using sa...

Journal: :Biologicals : journal of the International Association of Biological Standardization 2008
Marjan De Mey Gaspard J Lequeux Jo Maertens Cassandra I De Muynck Wim K Soetaert Erick J Vandamme

Many different extraction and analysis methods exist to determine the protein fraction of microbial cells. For metabolic engineering purposes it is important to have precise and accurate measurements. Therefore six different protein extraction protocols and seven protein quantification methods were tested and compared. Comparison was based on the reliability of the methods and boxplots of the n...

Journal: :journal of membrane science and research 0
e. bagheripour department of chemical engineering, faculty of engineering, arak university, arak 38156-8-8349, iran a.r. moghadassi department of chemical engineering, faculty of engineering, arak university, arak 38156-8-8349, iran s.m. hosseini department of chemical engineering, faculty of engineering, arak university, arak 38156-8-8349, iran m. nemati department of chemical engineering, faculty of engineering, arak university, arak 38156-8-8349, iran

in this study, a mixed matrix polyethersulfone/iron-nickel oxide nanoparticle nanofiltration membrane was prepared by the solution casting technique. polyvinylpyrrolidone was also used as a membrane pore former in membrane fabrication. the effect of iron-nickel oxide nanoparticles concentration in the casting solution on the membrane structure and performance was investigated. scanning optical ...

Existence of 2-methylpropane-2-thiol as an organosulfur and odorant compound in the soil could causes environmental problem and social dissatisfaction. In this study, remediation of this type of thiol using ultrasound is investigated. Central Composite Design (CCD) based on Response Surface Model (RSM) was used to obtain effects of the main factor (Power, sonication time and amount of water) an...

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