Figure 2 | Scientific Reports

Figure 2

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

Figure 2

SEM images and particle size distributions of the different PS microbeads prepared: (a) without addition of PEG-b-PCL (toluene added without PEG-b-PCL; synthesis with 500 mg AIBN, no crosslinker) and (b) with addition of 36.6 mg PEG-b-PCL in toluene (synthesis with 100 mg AIBN, crosslinked with 200 µL DVB). Conditions used for the preparation of both bead types: 75 °C, 70 rpm stirring speed, 24 h reaction time.

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