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A flow chart of 3D printing novel osteochondral nanocomposite scaffold. (A) Computer aided design (CAD) model of biphasic mold, (B) tool path for FDM print head and the photo image of the 3D printer, (C) optical micrograph of 3D printed HIPS mold, and (D) the final PEG-DA biphasic hydrogel scaffold.
