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3D bioprinting has emerged as a transformative technology in regenerative medicine, enabling the precise fabrication of complex tissue structures layer by layer. This article explores the principles, applications, challenges, and future prospects of 3D bioprinting in advancing tissue engineering and organ regeneration. Key topics include bioprinting techniques, bioink materials, applications in skin, cartilage, bone, and vascular tissues, as well as current challenges and future directions in the field
