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(a) SEM micrograph of microcontainer arrays before removal of the surrounding film; (b) microcontainer arrays after removal of the surrounding film; (c) close-up of a single PLGA 50:50 microcontainer; (d) close-up of a single PLGA 75:25 microcontainer; (e) harvested PLGA 50:50 microcontainers; (f) optical profile curve and 3D rendering of a single PLGA 50:50 microcontainer; (g) optical profile curve and 3D rendering of a single PLGA 75:25 microcontainer.
