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Hydrogel scaffolds are commonly used in tissue engineering as a substrate for cells or to deliver regenerative growth factors. We have previously demonstrated that acoustically responsive scaffolds can be developed by incorporating sonosensitive emulsions into hydrogel scaffolds. Growth factors, contained within the sonosensitive emulsions, can be released using ultrasound. Since ultrasound can be...
Background, Motivation and Objective: Automated ultrasound scanning (AUS) of the breast has developed more slowly than anticipated. The main limitation, beyond achieving adequate acoustic coupling to the breast, has been excessive shadow artifacts, as reflecting structures at acute angles to the ultrasound beam are not flattened by the transducer as well as in manual scanning. We believe that imaging...
Acoustic droplet vaporization (ADV), a process whereby liquid droplets are vaporized into gas bubbles using ultrasound, has been studied in vivo as a method to generate vascular occlusion. This work focuses on the development of a double emulsion that releases a chemical embolic agent, thrombin, upon ADV — thereby potentially extending the duration of ADV-induced occlusion. Micron-sized, double emulsions...
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