This lecture discusses the advancements in bionic prostheses, focusing on the restoration of sensory feedback and functionality for amputees. The instructor begins by outlining the fundamental concepts of neuroengineering and the challenges faced in designing prosthetic hands that mimic the human hand's dexterity and sensory capabilities. The lecture highlights the importance of sensory feedback in prosthetics, emphasizing how it can enhance the user's experience and control. Various types of prosthetic hands are examined, including passive, body-powered, and myoelectric options, each with its advantages and limitations. The instructor explains the complexities of the human hand's anatomy and the necessity for prosthetic devices to replicate its functionality. Key design issues such as adaptability, non-back-drivability, and the integration of intelligent mechanisms are discussed. The lecture concludes with case studies of innovative prototypes like SmartHand and OpenHand, showcasing the latest developments in bionic technology aimed at improving the quality of life for individuals with limb loss.