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Generation of a Droplet Inside a Microbubble with the Aid of an Ultrasound Contrast Agent: First Result

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New ultrasound contrast agents that incorporate a therapeutic compound have become of interest. Such an ultrasound contrast agent particle might act as the vehicle to carry a drug or gene load to a perfused region of interest. The load could be released with the assistance of ultrasound. Generally, an increase in shell thickness increases the acoustic amplitude needed to disrupt a bubble. High acoustic amplitudes, however, have been associated with unwanted effects on cells. It would be interesting to incorporate a droplet containing drugs or genes inside a microbubble carrier. A liquid core surrounded by a gas encapsulation has been referred to as antibubble. In this paper, the creation of an antibubble with the aid of ultrasound has been demonstrated with high-speed photography.

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Keywords: Antibubble; Drug delivery; High-speed photography; Ultrasound contrast agent

Document Type: Research Article

Affiliations: Institute for Medical Engineering, Ruhr-Universit├Ąt Bochum, Building IC, 6/144, D-44780 Bochum,Germany.

Publication date: January 1, 2007

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  • Letters in Drug Design & Discovery publishes original letters on all areas of rational drug design and discovery including medicinal chemistry, in-silico drug design, combinatorial chemistry, high-throughput screening, drug targets, and structure-activity relationships. The emphasis will be on publishing quality papers very rapidly. Letters will be processed rapidly by taking full advantage of Internet technology for both the submission and review of manuscripts. The journal is essential reading to all pharmaceutical scientists involved in research in drug design and discovery.
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