 The power, patterned organohydrigal surface with water evaporating replenishment is a new type of bio-inspired biosensor that can be used in open environments. It uses a combination of hydrophilic hydrigal domains and hydrophobic organogel background to provide a sustained source of water to droplets, allowing them to remain intact even when exposed to air. This allows for long-term detection of analytes over a wide range of timescales from minutes to hours. This article was authored by Hong Xiaogao, Xizi Wan, Yu Mingyang, and others.