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The non-specific host response to implanted biomaterials is often a key challenge of medical device design. To evaluate biocompatibility, measuring the release of reactive oxygen species (ROS) produced by inflammatory cells in response to biomaterial surfaces is a well-established method. However, the detection of ROS in response to materials implanted in vivo has not yet been demonstrated. Here,...
Purpose. pH-triggered microparticles release their therapeutic payloads at acidic pH (e.g., in the phagosome), making intracellular drug delivery more efficient. Here we modify lipid-based microparticles that are safe and efficacious in nerve and brain and are potentially inhalable, making them pH-triggerable by incorporating an acid-soluble polymethacrylate, Eudragit E100 (E100). Methods. Microparticles...
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