Dynamic air/liquid pockets for guiding microscale flow

Microscale flows of fluids are mainly guided either by solid matrices or by liquid–liquid interfaces. However, the solid matrices are plagued with persistent fouling problems, while liquid–liquid interfaces are limited to low-pressure applications. Here we report a dynamic liquid/solid/gas material containing both air and liquid pockets, which are formed by partially infiltrating a porous matrix with a functional liquid. Using detailed theoretical and experimental data, we show that the distribution of the air- and liquid-filled pores is responsive to pressure and enables the formation and instantaneous recovery of stable liquid–liquid interfaces that sustain a wide range of pressures and prevent channel contamination. This adaptive design is demonstrated for polymeric materials and extended to metal-based systems that can achieve unmatched mechanical and thermal stability. Our platform with its unique adaptive pressure and antifouling capabilities may offer potential solutions to flow control in microfluidics, medical devices, microscale synthesis, and biological assays

新疆罗布泊钾盐矿区地下水勘察研究

该项目实施的目的是为罗布泊钾盐矿区寻找地下水源，并在罗东的阿其克谷地取得了罗布泊地区找水历史上的重大突破，找到了可直接引用的淡水和选矿用水，为钾盐开发奠定了基础，随着罗布泊钾盐科技开发有限责任公司的成立和钾盐资源的勘探，阿其克谷地已作为钾盐矿区首选供水水源地正在进行勘探。2001年7月4日新疆日报公告：“新疆罗布泊钾盐矿区地下水勘察研究”项目的科研成果获自治区科技进步三等奖