|
|||||
|
|
Evidence for free radicals produced in aqueous solutions by diagnostic ultrasound |
|
| Authors: | C L Christman A J Carmichael M M Mossoba P Riesz |
| Institution: | 1. Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt 62, 6726 Szeged, Hungary;2. Research Group of Organic Chemistry, Department of Chemistry, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium;3. Department of Neuropeptides, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawinskiego Street, 02106 Warsaw, Poland;4. Department of Pharmacodynamics, Centre for Preclinical Research and Technology, Medical University of Warsaw, 1B Banacha Str., 02-106 Warsaw, Poland |
| Abstract: | Recent theoretical calculations have shown that small gas nuclei in water exposed to microsecond ultrasonic pulses above an intensity threshold may grow into transient cavities that collapse violently, leading to the formation of .OH radicals and .H atoms. We have detected these free radicals in aqueous solutions exposed to microsecond pulsed ultrasound using spin trapping and electron spin resonance (ESR). The public health implications of our results are discussed. |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ | |