Marimuthu, Mohana Veerapandian, Murugan Ramasundaram, Subramaniyan Hong, Seok Won Sudhagar, P. Nagarajan, Srinivasan Raman, V. Ito, Eisuke Kim, Sanghyo Yun, Kyusik Kang, Yong Soo 2024-01-20T10:32:47Z 2024-01-20T10:32:47Z 2021-09-05 2014-02 0169-4332 https://pubs.kist.re.kr/handle/201004/127177 Surface functionalization is an important process that has been adopted to well explore the applications of nanomaterials. In this context, we demonstrate the sodium functionalized graphene oxide (NaGO) as an excellent candidate for increasing the life time of titanium (Ti) based ortho-implants. As-prepared aqueous dispersion of NaGO was used to assemble NaGO sheets on commercially pure Ti (CpTi) plates by heat controlled spin coating. The resulting wrinkled NaGO sheets play a dual role in implant material, i.e., passive layer against corrosion and biocompatible scaffold for cell viability. The preparation, physicochemical properties, and biocompatibility of NaGO coatings formed on CpTi were reported. The electrochemical polarization studies demonstrate the relative susceptibility of control GO and NaGO coatings to corrosion, which outline that the NaGO coating act as a geometric blocking layer and hence prevent the implant surface from contacting corrosive media. The immunofluorescence and cell proliferation studies performed using human dermal fibroblasts cells showed that NaGO coatings significantly (P < 0.05) enhanced the cellular viability for longer in vitro culture period (15 days) than control GO and pristine CpTi. (C) 2013 Elsevier B.V. All rights English ELSEVIER Sodium functionalized graphene oxide coated titanium plates for improved corrosion resistance and cell viability Article 10.1016/j.apsusc.2013.12.114 1 APPLIED SURFACE SCIENCE, v.293, pp.124 - 131 APPLIED SURFACE SCIENCE 293 124 131 N scie scopus 000330576600017 2-s2.0-84895061666 Chemistry, Physical Materials Science, Coatings & Films Physics, Applied Physics, Condensed Matter Chemistry Materials Science Physics Article WETTABILITY CHALLENGES NANOSHEETS REDUCTION PROMISES BEHAVIOR GROWTH FILMS HEAT Sodium Graphene oxide Titanium Orthopedic implants Corrosion Biocompatibility