Journal article
3D nanoprinting via spatially controlled assembly and polymerization
TG Pattison, S Wang, RD Miller, GY Liu, GG Qiao
Nature Communications | Published : 2022
Abstract
Macroscale additive manufacturing has seen significant advances recently, but these advances are not yet realized for the bottom-up formation of nanoscale polymeric features. We describe a platform technology for creating crosslinked polymer features using rapid surface-initiated crosslinking and versatile macrocrosslinkers, delivered by a microfluidic-coupled atomic force microscope known as FluidFM. A crosslinkable polymer containing norbornene moieties is delivered to a catalyzed substrate where polymerization occurs, resulting in extremely rapid chemical curing of the delivered material. Due to the living crosslinking reaction, construction of lines and patterns with multiple layers is p..
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Awarded by University of Melbourne
Funding Acknowledgements
The authors would like to thank Mr. A. Tek at IBM for technical assistance in thermal polymer analysis, and Ms. Yunbo Zheng at UC Davis for helpful discussions, as well as Cytosurge AG for providing the SEM used in Fig. 1. T.G. Pattison would like to acknowledge the Australian Postgraduate Award and the University of Melbourne/IBM Ph.D. Scholarship for funding this research. This work is also supported by National Science Foundation (USA, CHE-1808829, GYL) and Australian Research Council's Discovery Program (DP17010432 and DP130101846, GGQ) as well as Future Fellowship Program (FT11010100411, GGQ).