The USRNSs reported in the form of micelles, liposomes, microbubbles, nanocarrier-microbubble hybrids, perfluorocarbon nanoemulsions, polymeric and albumin nanoparticles. The drugs are released through thermal and nonthermal effects produced by US from USRNSs. The thermal and nonthermal effect may include...
Its efficacy was reported to rely on a combination of cavitation [79, 80], thermal [81, 82], radiation force, convection [83], and lipid extraction [84] effects resulting from ultrasound application. Thus, nano-systems consisting of liposomes comprising siRNAs have been delivered to skin ...
Empirical approach. Bioeffects are being investigated in a "exposure-response" context Name the two important mechanisms likely to produce bioeffects Thermal and nonthermal (mechanical) Which statement allows us to conclude that diagnostic ultrasound does not injure tissues from temperature elevation?
Bioeffects of ultrasound are classified as thermal and nonthermal effects (Kondo et al 2000, Feril and Kondo 2004). The latter are further classified as cavitational and noncavitational effects. It was shown that cavitation leads to both mechanical effects and chemical effects. Mechanical effects ...
High-intensity focused ultrasound (HIFU) has been applied clinically for the noninvasive treatment of pathological conditions in various organs for over 50 years; however, there are little data describing the use of thermal HIFU to ablat... Mark,L,Jewell,... - 《Aesthetic Surgery Journal》 被...
effects cell death ultrasound therapy low power ultrasound high power ultrasound physiotherapy fracture repair sonophoresis sonoporation gene therapy high intensity focused ultrasound therapeutic effect intensity spectrum thermal interaction nonthermal interaction acoustic streaming acoustic heating acoustic cavitation ...
The main points of values of FUS are the non-invasiveness, incision-free, controllability via real-time MR guidance and the capacity to activate the immune system [54]. The first non-invasive thermal ablation of a brain tumor in human was realized by Coluccia et al. [55] in their ...
Their effect is based on the transmission of ultrasound waves in a liquid, in which they generate thermal and nonthermal effects. For the latter, ultrasound waves act on the gas dissolved, where the compression of the liquid is followed by its rarefaction. As a consequence, the microbubbles ...
Therapeutic ultrasound has been used mainly for its thermal or mechanical effects. Medical applications of high-energy nonthermal ultrasound to ablate cancers are now being studied. Reports reveal that many diseases are being treated with a combination of ultrasound and drugs. Further, the introduction...
The thermal effect is extremely small using low intensity as in the LIPUS, which is advantageous in minimising the thermal effect observed in ultrasound forms at higher intensities; therefore, it is used to enhance bone and soft tissue healing [4]. Moreover, the nonthermal effects of ultrasound...