نتایج جستجو برای: low intensity ultrasound

تعداد نتایج: 1443096  

2014
Han-Xiao Zhu Xun-Zi Cai Zhong-Li Shi Bin Hu Shi-Gui Yan

Previous research has found that low-intensity ultrasound enhanced the lethal effect of gentamicin on planktonic E. coli. We aimed to further investigate whether microbubble-mediated low-intensity ultrasound could further enhance the antimicrobial efficacy of gentamicin. The planktonic E. coli (ATCC 25922) was distributed to four different interventions: control (GCON), microbubble only (GMB), ...

2014
Zhongqiang Guo Jin Liu Boxing Su Xuesong Li Liqun Zhou

Ultrasound is a form of mechanical energy with its acoustic pressure wave at frequencies range from 20 to 20,000 Hz. To date, ultrasound waves are not only used in imaging medicine for diagnosis, but also are performed in physical therapy (PT) medicine for the purpose of preventing and curing disease due to its thermal and nonthermal effects, and the ultrasound frequencies used in PT are typica...

2014
Hongen Lei Yongde Xu Ruili Guan Huixi Li Wenjie Tian Lin Wang Zhezhu Gao Zhongcheng Xin

Ultrasound is a form of mechanical energy with its acoustic pressure wave at frequencies range from 20 to 20,000 Hz. To date, ultrasound waves are not only used in imaging medicine for diagnosis, but also are performed in physical therapy (PT) medicine for the purpose of preventing and curing disease due to its thermal and nonthermal effects, and the ultrasound frequencies used in PT are typica...

Journal: :journal of medical signals and sensors 0
parisa rangraz hamid behnam naser shakhssalim jahan tavakkoli

non-invasive ultrasound surgeries such as high intensity focused ultrasound have been developed to treat tumors or to stop bleeding. in this technique, incorporation of a suitable imaging modality to monitor and control the treatments is essential so several imaging methods such as x-ray, magnetic resonance imaging and ultrasound imaging have been proposed to monitor the induced thermal lesions...

Journal: :Journal of controlled release : official journal of the Controlled Release Society 2012
Carl M Schoellhammer Baris E Polat Jonathan Mendenhall Ruby Maa Brianna Jones Douglas P Hart Robert Langer Daniel Blankschtein

Low-frequency ultrasound has been studied extensively due to its ability to enhance skin permeability. In spite of this effort, improvements in enhancing the efficacy of transdermal ultrasound treatments have been limited. Currently, when greater skin permeability is desired at a given frequency, one is limited to increasing the intensity or the duration of the ultrasound treatment, which carri...

2015
Samuel Pichardo Rafael R. C. Silva Oleg Rubel Laura Curiel Alexei Gruverman

Efficient driving of piezoelectric materials is desirable when operating transducers for biomedical applications such as high intensity focused ultrasound (HIFU) or ultrasound imaging. More efficient operation reduces the electric power required to produce the desired bioeffect or contrast. Our preliminary work [Cole et al. Journal of Physics: Condensed Matter. 2014;26(13):135901.] suggested th...

In this study, the effect of ultrasound irradiation on the flux recovery and fouling mitigation for the membranes made of the polysulfone by the phase inversion method were investigated. Two ultrasound irradiation regimes, including inside and outside the module, were chosen for this study. The experiments were conducted to investigate the effect of ultrasound irradiation on the membrane struct...

یثربی, بهزاد, تمیزی‌فر, مرتضی , شرفی, علی‌اکبر , صالحپور, زهرا ,

The effect of ultrasound waves with low intensity on reducing the time of repair and healing of bone fracture has been known. The present research was undertaken to investigate the effect of ultrasound waves on acceleration of bone growth and, finally, on repair and healing of surgical area using in-vivo animal experiment. In this study, 20 titanium implants with proper dimensions wer...

Journal: :Folia biologica 2008
V Bernard J Skorpíková V Mornstein

This article deals with an in vitro study of the effect of cisplatin and low intensity ultrasound exposure on the viability of human ovarial carcinoma cells A2780. The effect on the viability of 103 cell experimental group samples under the influence of separate and combined cisplatin and ultrasound far field exposure was studied. Viable cells in individual experimental groups were followed at ...

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