Nothing is everything: How hidden emptiness can define the usefulness of filtration materials

Prof. Qian Chen, right, and chemistry graduate student Falon Kalutantirige worked with multiple technologies, including Transmission and Scanning Transmission Electron Microscopy at the Materials Research Laboratory’s Supercon facility to image nanovoids within filter membranes in three dimensions. The team has titled the nanovoid advancement “Beyond Nothingness,” where they applied a mathematical concept called graph theory in the first use of this theory applied to materials science. A 3D reconstruction of PA membranes with interconnected nanovoids constructed from their microscopy scan work is projected on the back wall.

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