Nature CommunicationsWater triggers visible-light photochromism in a hydrogen-bonded organic frameworkHaibo LiangLinjing TongGan LuoXiaoxue KouYujian ShenYong ShenSiming HuangGuosheng ChenGangfeng Ouyang2026-08-12Full textDOI https://doi.org/10.1038/s41467-026-76746-3