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Malyhon

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PHBV films are activated by ammonia plasma treatment to
produce amino groups on the surface. RGD peptides are then
grafted to the activated PHBV films through a PEG-containing
cross-linker with a hydroxysuccinimidyl group at one end and a
maleimide group at the other end. XPS analyses of the modified
surfaces after each reaction step indicate that the RGD-containing
peptides have been covalently grafted onto PHBV films. The
results of the cell studies have confirmed that the RGD-modified
PHBV films exhibit a distinctly improved cellular compatibility.

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