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Diabetic wounds have become a major clinical problem that cannot be ignored. Gases, such as hydrogen sulphide (H₂S), have demonstrated value in inducing angiogenesis and accelerating wound healing, while their effective delivery is still challenging. Here, inspired by the continuous-independent hollow structure of bamboo, we propose novel gasotransmitter microfibres with septal H₂S bubbles using microfluidic spinning for diabetic wound healing. Benefitting from the exact control of microfluidics, gasotransmitter microfibres with different bubble sizes and morphologies could be generated successfully and continuously. Under the dual effects of drugs in the shell and gas in the core, the wound healing process could be accelerated. Furthermore, the controllable release of drugs could be achieved by adding responsive materials into the microfiber shell, which would promote continuous effects of contents on …