Effects of Increasing Nano-Scale Coating Thickness of Titanium on the Interaction of Silicon with Cancer Cells

Authors

  • G.M. Oyatogun Department of Materials Science and Engineering Obafemi Awolowo University, Ile-Ife, Nigeria
  • W.O. Soboyejo Mechanical and Aerospace Engineering Princeton University, N.J., USA
  • A.A. Afonja Department of Materials Science and Engineering Obafemi Awolowo University, Ile-Ife, Nigeria
  • B.I. Imasogie Department of Materials Science and Engineering Obafemi Awolowo University, Ile-Ife, Nigeria
  • O.O. Adewoye Department of Materials Science and Engineering Obafemi Awolowo University, Ile-Ife, Nigeria
  • M.O. Adeoye Department of Materials Science and Engineering Obafemi Awolowo University, Ile-Ife, Nigeria
  • T.A. Esan Department of Restorative Dentistry, College of Health Sciences, Obafemi Awolowo University, Ile Ife, Nigeria

Keywords:

titanium, silicon, nano-scale, coating thickness, cellular response

Abstract

The effect of increasing nano-scale coating thickness of titanium on the interaction of silicon with cancer cells is investigated.        Titanium coating of varying nano-scale thickness was deposited on silicon surface. Surface characterizations of the modified and unmodified samples were carried out using Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM). Human osteosarcoma cells (HOS) were cultured on the surfaces to study the effects of the modification on its cellular response. Optical microscopy and SEM were used to study the morphology of the cells on the different cultured samples. The quality of cells adhesion was also studied using shear assay techniques. 50 nm coating of titanium on silicon surfaces was found to reduce its surface roughness from 1.36 nm to 1.19 nm. This enhances the interaction of the silicon through a rapid spread of the cells. It was also observed that increasing the titanium coating thickness from 50 nm to 100 nm resulted in a further drop in the surface roughness value to 1.12 nm with the consequent increase in its cellular response. The application of increasing nano-scale thickness of titanium on silicon substrate was found to enhance the quantity and quality off cell adsorption, adhesion and proliferation.

Author Biographies

G.M. Oyatogun, Department of Materials Science and Engineering Obafemi Awolowo University, Ile-Ife, Nigeria

Department of Materials Science and Engineering

Obafemi Awolowo University, Ile-Ife, Nigeria

W.O. Soboyejo, Mechanical and Aerospace Engineering Princeton University, N.J., USA

Mechanical and Aerospace Engineering

Princeton University, N.J., USA

A.A. Afonja, Department of Materials Science and Engineering Obafemi Awolowo University, Ile-Ife, Nigeria

Department of Materials Science and Engineering

Obafemi Awolowo University, Ile-Ife, Nigeria

B.I. Imasogie, Department of Materials Science and Engineering Obafemi Awolowo University, Ile-Ife, Nigeria

Department of Materials Science and Engineering

Obafemi Awolowo University, Ile-Ife, Nigeria

O.O. Adewoye, Department of Materials Science and Engineering Obafemi Awolowo University, Ile-Ife, Nigeria

Department of Materials Science and Engineering

Obafemi Awolowo University, Ile-Ife, Nigeria

M.O. Adeoye, Department of Materials Science and Engineering Obafemi Awolowo University, Ile-Ife, Nigeria

Department of Materials Science and Engineering

Obafemi Awolowo University, Ile-Ife, Nigeria

T.A. Esan, Department of Restorative Dentistry, College of Health Sciences, Obafemi Awolowo University, Ile Ife, Nigeria

Department of Restorative Dentistry, College of Health Sciences,

Obafemi Awolowo University, Ile Ife, Nigeria

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Oyatogun, G., Soboyejo, W., Afonja, A., Imasogie, B., Adewoye, O., Adeoye, M., & Esan, T. (2013). Effects of Increasing Nano-Scale Coating Thickness of Titanium on the Interaction of Silicon with Cancer Cells. Ife Journal of Technology, 22(1), 9–14. Retrieved from https://ijt.oauife.edu.ng/index.php/ijt/article/view/113

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