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<p>Atmospheric water harvesting (AWH), which captures water from air, either by condensing humid air or by using sorbents that bind and release water vapour, is being explored as a decentralized source of clean water where piped supply is absent, intermittent or unsafe<sup><CitationRef AdditionalCitationIDS="CR2 CR3 CR4" CitationID="CR1">1</CitationRef>–<CitationRef CitationID="CR5">5</CitationRef></sup>. Here we highlight the role of AWH as a reversible vapour sorption and controlled condensation strategy to regulate humidity and water activity (the effective availability of water) within biomedical devices. AWH can buffer local hydration and generate small liquid volumes for sampling, improving the robustness of wearables, point-of-care assays and respiratory monitoring in environments where conventional humidity control is unavailable.</p>

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Atmospheric water harvesting for humidity control in medical devices for global health

  • 期刊论文

  • 发表日期：

    2026年7月27日

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  • Weixin Guan,
  • Yaxuan Zhao,
  • Bozhi Tian,
  • Xuanhe Zhao,
  • Guihua Yu

摘要

Atmospheric water harvesting (AWH), which captures water from air, either by condensing humid air or by using sorbents that bind and release water vapour, is being explored as a decentralized source of clean water where piped supply is absent, intermittent or unsafe1–5. Here we highlight the role of AWH as a reversible vapour sorption and controlled condensation strategy to regulate humidity and water activity (the effective availability of water) within biomedical devices. AWH can buffer local hydration and generate small liquid volumes for sampling, improving the robustness of wearables, point-of-care assays and respiratory monitoring in environments where conventional humidity control is unavailable.