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Hydrogels are widely used matrices for mesenchymal stem cell (MSC)-based cartilage regeneration but often result in slow cartilage deposition with inferior mechanical strength. We recently reported a gelatin-based microribbon (μR scaffold, which contains macroporosity and substantially enhances the speed of cartilage formation by MSCs in 3D. However, our previous method cannot be used to fabricate different polymers into μRBs, and the effects of varying μRB compositions on MSC cartilage regeneration in 3D remain unknown. Here, we report