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The adhesive effect of novel Lev/MSNs/n-HA/PU composite scaffold materials on E. coli and S. aureus. Scanning electron microscope (SEM) was used to detect the adhesion of Escherichia coli (upper) and Staphylococcus aureus (lower) to the composite scaffold materials n-HA/PU (A-B), and the adhesion to novel composite scaffold materials Lev/MSNs/n-HA/PU (C-D). Representative results are shown.
