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Binding of peptides to osteoblast culture mineral. Maximally mineralized (12-day) MC3T3-E1 osteoblast cultures were incubated with 150 μM fluorescently tagged peptides for 1 h and examined by fluorescence microscopy for peptides (green) and calcein blue-labelled mineral (blue). pVTK co-localized with mineral indicating peptide binding to apatite.
