Figure 6 | Scientific Reports

Figure 6

From: Luminescence encoding of polymer microbeads with organic dyes and semiconductor quantum dots during polymerization

Figure 6

Localization of the QDs inside the PS microbeads, determined (a) with a STEM image of DVB-crosslinked PS microbeads encoded with OBDAC-coated, OA/OLA-stabilized CdSe/CdS-QDs, revealing the location of the QDs in the microbead core region; with CLSM images of the same particles measured (b) in fluorescence and (c) in transmission, including a size comparison of the fluorescent area and the particle diameter derived from the transmission image and (d) with EDXS analysis of the same DVB-crosslinked PS microbeads encoded with OBDAC-coated, OA/OLA-stabilized CdSe/CdS-QDs. Reaction conditions of particles in all images: 75 °C, 36.6 mg AIBN, 36.6 mg PEG-b-PCL, 70 rpm stirring speed, 24 h reaction time.

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