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Self-sustained oxygen mask

Oxygen masks typically rely on an external oxygen supply, whether in the form of oxygen tanks or capsules. In response to ‘the ultimate bioengineering challenge’ competition, we present the design of a self-sustained oxygen mask using lightweight biocompatible materials to provide extended oxygen supply and water collection for low-resource settings.

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Fig. 1: Schematic of self-sustained O2 mask.

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Acknowledgements

The authors acknowledge the financial support of the project ImmunoChip, which has received funding from the European Research Council (ERC) under the European Union’s Horizon Europe research and innovation programme grant agreement No. 101045415 and the support of the Deutsche Forschungsgemeinschaft (DFG) for the RTG ‘Supracolloidal Structures’ 2767.

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All authors have jointly contributed to the conception and conceptualization of the initial idea, the drafting of the original manuscript and the revisions of the manuscript.

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Correspondence to Xuan Peng.

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The authors declare no competing interests.

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Peng, X., Zhao, X. & Janićijević, Ž. Self-sustained oxygen mask. Nat Rev Bioeng 3, 267–268 (2025). https://doi.org/10.1038/s44222-025-00300-x

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