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Figure 9. Nerve regeneration using the stimuli-responsive films. (A) Mimosa-inspired water-responsive films with good biocompatibility, diameter adaptability and seamless biointegration. Copyright 2023, John Wiley and Sons^[97]; (B) A multichannel nerve guidance conduit triggered by body temperature for enhancing cell growth and improving nerve regeneration. Copyright 2020, Springer Nature^[94]; (C) A responsive cascade drug delivery film scaffold for PNS injury repair. Copyright 2024, Royal Society of Chemistry^[153]; D. Water-responsive polymer films with wrapping ability and mechanical compatibility for function reconstruction. Copyright 2023, Springer Nature^[30].