نتایج جستجو برای: fullerene nanoemulsion high frequency ultrasound

تعداد نتایج: 2480744  

Journal: :Bulletin of entomological research 2014
S Sugumar S K Clarke M J Nirmala B K Tyagi A Mukherjee N Chandrasekaran

Filariasis is a mosquito-borne disease that causes lymphedema and the main vector is Culex quinquefasciatus. A simple measure was taken to eradicate the vector using nanoemulsion. Eucalyptus oil nanoemulsion was formulated in various ratios comprising of eucalyptus oil, tween 80 and water by ultrasonication. The stability of nanoemulsion was observed over a period of time and 1:2 ratios of euca...

Journal: :Journal of Nanobiotechnology 2008
Faiyaz Shakeel Sanjula Baboota Alka Ahuja Javed Ali Sheikh Shafiq

BACKGROUND Celecoxib, a selective cyclo-oxygenase-2 inhibitor has been recommended orally for the treatment of arthritis and osteoarthritis. Long term oral administration of celecoxib produces serious gastrointestinal side effects. It is a highly lipophilic, poorly soluble drug with oral bioavailability of around 40% (Capsule). Therefore the aim of the present investigation was to assess the sk...

Background and Objectives: Food industries are searching newer and cheaper ways to safely produce and storage foods. Nanotechnology offers several options for the production, encapsulation and emulsion of foods. The aim of this study was to investigate effects of nanoemulsion of Zataria multiflora essential oil on microbial, chemical and sensory properties of silver carp fillets.  Materials & ...

Journal: :journal of arthropod-borne diseases 0
m khoobdel health research center, baqiyatallah university of medical sciences, tehran, iran m shayeghi department of medical entomology, school of public health, tehran university of medical sciences, iran s golsorkhi department of medical entomology, school of public health, tehran university of medical sciences, iran m abtahi department of medical entomology, school of public health, tehran university of medical sciences, iran h vatandoost department of medical entomology, school of public health, tehran university of medical sciences, iran h zeraatii department of biostatistics, school of public health, tehran university of medical sciences, iran

background: carbaryl (1-naphthyl-n-methyl carbamate) is a chemical in the carbamate family used chiefly as an insecticide. it is a cholinesterase inhibitor and is toxic to humans and classified as a likely human carcinogen. in the present study, the degradation of the carbaryl pesticide was investigated in the laboratory synthetic samples of tap water, in the effect of sonolysis and photolysis ...

Journal: :Physics in medicine and biology 2005
Roch L Maurice Michel Daronat Jacques Ohayon Ekatherina Stoyanova F Stuart Foster Guy Cloutier

Non-invasive vascular elastography (NIVE) was recently introduced to characterize mechanical properties of superficial arteries. In this paper, the feasibility of NIVE and its applicability in the context of high-frequency ultrasound imaging is investigated. First, experiments were performed in vitro on vessel-mimicking phantoms. Polyvinyl alcohol cryogel was used to create two double-layer ves...

Journal: :Ultrasonics 2006
Claudio I Zanelli Samuel M Howard

The increased use of medical ultrasound above 40 MHz poses the challenge of measuring beam features that may be less than 40 microm. We have successfully used the optical Schlieren technique for transducers operating as high as 110 MHz. After a brief discussion of the technique, results are presented, including comparisons to state-of-the-art hydrophones and wire targets.

2003
Haifeng Wang Tim Ritter Wenwu Cao Kirk Shung

In this paper, the elastic properties of passive materials (matching, backing and lens materials) for ultrasound transducers are explored at room temperature in the frequency range of 25-65MHz using the ultrasonic spectroscopy method. AlurninaJEPOTEK 301 and tungsten/EPO-TEK 301 composites were fabricated and measured. Experimental results display a monotonic rise in acoustic impedance of the c...

Journal: :International journal of pharmaceutics 2012
Héloïse Ragelle Sylvie Crauste-Manciet Johanne Seguin Denis Brossard Daniel Scherman Philippe Arnaud Guy G Chabot

The natural flavonoid fisetin (3,3',4',7-tetrahydroxyflavone) has shown antitumour activity but its administration is complicated by its low water solubility. Our aim was to incorporate fisetin into a nanoemulsion to improve its pharmacokinetics and therapeutic efficacy. Solubility and emulsification tests allowed to develop an optimal nanoemulsion composed of Miglyol 812N/Labrasol/Tween 80/Lip...

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