The water contact angle results exhibited increased hydrophilicity by increasing the graphene oxide(0 to 0.5%w/v). Still, it occurred oppositely at the concentration of 0.75%w/v even with repeating the test.
Jing, Xin, Hao-Yang Mi, Max R. Salick, Travis M. Cordie, Xiang-Fang Peng, and Lih-Sheng Turng. "Electrospinning thermoplastic polyurethane/graphene oxide scaffolds for small diameter vascular graft applications." Materials Science and Engineering: C 49 (2015): 40-50.
Yes, I have such observations. But, one needs to be careful as there is a greater chance of graphene leach out due to lack of any interaction between the graphene and the polymer or materials matrix.
Sara Tabatabaee
For a competent answer from an expert, it is necessary to know the material of the frame and its contact angle with water.
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