Acoustic nanodrops for biomedical applications
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE(2020)
摘要
Acoustic nanodrops are designed to vaporize into ultrasoundresponsive microbubbles, which present certain challenges nonexistent for conventional nanoemulsions. The requirements of biocompatibility, vaporizability, and colloidal stability have focused research on perfluorocarbons. Shorter perfluorocarbons yield better vaporizability via their lower critical temperature, but they also dissolve more easily owing to their higher vapor pressure and solubility. Thus, acoustic nanodrops have required a trade-off between vaporizability and colloidal stability in vivo. The recent advent of vaporizable endoskeletal droplets, which are both colloidally stable and vaporizable, may have solved this problem. The purpose of this review is to justify this premise by pointing out the beneficial properties of acoustic nanodrops, providing an analysis of vaporization and dissolution mechanisms, and reviewing current biomedical applications.
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关键词
Nanodroplet,Microbubble,Ultrasound,Imaging,Therapy,Theranostics
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