Contreras-Pereda Noemí, Rodríguez-San-Miguel David, Franco Carlos, Sevim Semih, Vale João Pedro, Solano Eduardo, Fong Wye-Khay, Del Giudice Alessandra, Galantini Luciano, Pfattner Raphael, Pané Salvador, Mayor Tiago Sotto, Ruiz-Molina Daniel, Puigmartí-Luis Josep
Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Spain.
Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Zurich, 8093, Switzerland.
Adv Mater. 2021 Jul;33(30):e2101777. doi: 10.1002/adma.202101777. Epub 2021 Jun 4.
To date, crystallization studies conducted in space laboratories, which are prohibitively costly and unsuitable to most research laboratories, have shown the valuable effects of microgravity during crystal growth and morphogenesis. Herein, an easy and highly efficient method is shown to achieve space-like experimentation conditions on Earth employing custom-made microfluidic devices to fabricate 2D porous crystalline molecular frameworks. It is confirmed that experimentation under these simulated microgravity conditions has unprecedented effects on the orientation, compactness and crack-free generation of 2D porous crystalline molecular frameworks as well as in their integration and crystal morphogenesis. It is believed that this work will provide a new "playground" to chemists, physicists, and materials scientists that desire to process unprecedented 2D functional materials and devices.
迄今为止，在太空实验室进行的结晶研究表明了微重力在晶体生长和形态发生过程中的重要作用，但太空实验室成本高昂，且不适用于大多数研究实验室。在此，我们展示了一种简单且高效的方法，即在地球上利用定制的微流控装置制造二维多孔晶体分子框架，以实现类似太空的实验条件。已证实，在这些模拟微重力条件下进行实验，对二维多孔晶体分子框架的取向、致密性和无裂纹生成及其整合和晶体形态发生具有前所未有的影响。相信这项工作将为渴望加工前所未有的二维功能材料和器件的化学家、物理学家和材料科学家提供一个新的“试验场”。
