Additional file 4.

Figure S3 MFI values from FACS for Caco-2 cells incubated with 10 and 2 μg/mL MSPs for 4 h. The lower graphs have been normalized against pure particle suspension fluorescence values measured at 530 nm in HEPES buffer at pH 7.2.

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Karaman et al. Nanoscale Research Letters 2012 7:358   doi:10.1186/1556-276X-7-358