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Table 1 Chemical composition of nt-TiO 2 and surface-modified nt-TiO 2

From: Immobilization of pamidronic acids on the nanotube surface of titanium discs and their interaction with bone cells

Substrate Atomic percent
  O C Ti N Si P
nt-TiO2 56.4 22.2 20.5 0.9 - -
nt-TiO2-A 49.9 27.5 16.3 3.2 3.1 -
nt-TiO2-P 58.3 16.1 21.6 1.3 0.8 1.9