Scheme 1. (A) Microcapsule-Based Hydrogen Peroxide Sensor, (B) BSA-AuNC, (C) FS, (D) Microcapsule Sensors Incubated with Macrophages, (E) Microcapsule Sensors Being Engulfed by Macrophages, and (F) Microcapsule Sensors Ingested by Macrophages.
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