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Results of trypan blue test (cell viability) for NIH3T3 cells cultured on different types of films for four days: PEI-(HA/HA+)9-HA, PEI-(HA/HA+)10, as compared to (PLL/HA)12 native or cross-linked films and to bare glass. Values and standard errors are obtained for three slides per film type. *Adhesion was statistically different between different film types (ANOVA, *p < 0.05).
