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3D bio-printed scaffolds of SF-PRP bio-inks with high resolution, shape fidelity, and controlled release of GFs. (A) Three-dimensional printing process of objects with various shapes and dimensions. (B) Microstructure of 3D printed scaffolds (white arrows indicate platelets attached in the scaffold). (C) Sustained release of GFs from SF-PRP hydrogels. Reproduced with permission from Li et al. (2020).
