Murray, Todd W. Department of Aerospace and Mechanical Engineering, Boston University, Boston, Massachusetts.
Roy, Ronald A. Department of Aerospace and Mechanical Engineering, Boston University, Boston, Massachusetts.
Affholter, Kathleen A. Department of Geological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia.
- Synergistic effects, combining light and sound
- Ultrasound therapy
- Laser therapy and imaging
- Links to Primary Literature
- Additional Readings
Transient illumination of light-absorbing nanoparticles using pulsed laser sources can produce rapid and highly localized heating. If a particle in a liquid medium absorbs a sufficient amount of laser energy, then vaporization of a layer of liquid blanketing the particle ensues and the hot vapor bubble goes through an expansion phase followed by a subsequent collapse. This phenomenon, termed optical cavitation, can be utilized for a number of biomedical applications. The localized increase in temperature and mechanical disruption associated with the bubble collapse have been used for the targeting of individual cells, producing selective damage in, for example, cancer cells and viruses infused with particles. Gas bubbles can also be stimulated to increase the echo generation in a nanoparticle-targeted region of tissue, thereby improving the contrast in diagnostic ultrasound imaging.
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Its dedicated editorial team is led by Sagan Award winner John Rennie. Contributors include more than 9000 highly qualified scientists and 39 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 17,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information