Author(s)

Zhypargul Abdullaeva^1*, Zhazgul Kelgenbaeva¹, Tsushida Masayuki¹, Megumi Hirano², Shoji Nagaoka³, Tomohiro Shirosaki³

¹Department of Materials Science and Engineering, Kumamoto University, Kumamoto, Japan.
²Applied Chemistry and Biochemistry Department, Kumamoto University, Kumamoto, Japan.
³Materials Development Department, Kumamoto Industrial Research Institute, Kumamoto, Japan.

This work describes synthesis of graphene sheets with modified surface by sodium lauryl sulfate (SLS) surfactant using one-pot solvothermal reaction method. Effect of sodium lauryl sulfate surfactant amount on surface modification level of graphene sheets was investigated. Ether (-S-OR- at 762 cm^-1 - 863 cm^-1), thiocarbonyl (=C=S at 1050 cm^-1 - 1176 cm^-1) and sulfoxide (S-O, V_s and V_as at 1030 cm^-1 - 1450 cm^-1) functional groups released from sodium lauryl sulfate (SLS) surfactant during solvothermal reaction and attached on the surface of graphene sheets were detected by (attenuated total reflectance-fast Fourier infrared) ATR-FTIR spectroscopy. (Atomic force microscope) AFM observations revealed apparent surface of graphene sheets modified by surfactant molecules with an average multiple profile of graphene nanosheets ≈ 4.8 nm high. This synthesis way of surface modified graphene sheets can be considered as easy, one-step and cheap method for manufacturing of novel biosurface with graphene, as reinforcement for biopolymer coatings such as ultra-high molecular weight polypropylene (UHMWPE), metallic biomaterials (Ti and Ti alloys) and bioceramics as hydroxyapatite (HA).

Graphene, Synthesis, Surface Modification, Surfactant, Attenuated Total Reflection

Abdullaeva, Z. , Kelgenbaeva, Z. , Masayuki, T. , Hirano, M. , Nagaoka, S. and Shirosaki, T. (2016) Graphene Sheets with Modified Surface by Sodium Lauryl Sulfate Surfactant for Biomedical Applications. Graphene, 5, 155-165. doi: 10.4236/graphene.2016.54013.