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Additive manufacturing with two‐photon polymerization (TPP) has opened new opportunities for the rapid fabrication of 3D structures with sub‐micrometer resolution, but there are still many fabrication constraints associated with this technique. This study details a postprocessing method utilizing oxygen‐plasma etching to increase the capabilities of TPP. Underutilized precision in the typical fabrication...
In article number 1902370, Andrew J. Gross and Katia Bertoldi demonstrate two post‐processing techniques that use oxygen plasma etching to overcome fabrication limitations of two‐photon polymerization. These simple techniques allow for the fabrication of nanostructures with extreme geometry and reduced feature sizes, all while using commonly available materials and equipment.
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