Selective placement of functionalised DNA origami via thermal scanning probe lithography patterning

利用热扫描探针光刻图案化技术选择性地放置功能化DNA折纸

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Abstract

Here we present a nanopatterning strategy utilising thermal scanning probe lithography (t-SPL) for the precise organisation of DNA origami into nanoarrays. The aim of this approach is to demonstrate control in the fabrication of nanoarray platforms exhibiting single-molecule accuracy. Combining the inherent programmability of DNA origami structures with t-SPL nanopatterning, we demonstrated the controlled immobilisation on surfaces of functionalised DNA origami - as proof of concept we employed gold nanoparticles (AuNPs) and quantum dots (QDs) - at predefined positions and in nanoarray configurations. This method holds great potential for the construction of hetero-functionalised biomolecular nanoarrays with single-molecule control, with applications in bionanotechnology and (nano)materials science.

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