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arXiv · 2008.03991

Adaptable DNA interactions regulate surface triggered self assembly

Roberta Lanfranco·Pritam Kumar Jana·Gilles Bruylants·Pietro Cicuta·Bortolo Matteo Mognetti·Lorenzo Di Michele
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Abstract

DNA-mediated multivalent interactions between colloidal particles have been extensively applied for their ability to program bulk phase behaviour and dynamic processes. Exploiting the competition between different types of DNA-DNA bonds, here we experimentally demonstrate the selective triggering of colloidal self-assembly in the presence of a functionalised surface, which induces changes in particle-particle interactions. Besides its relevance to the manufacturing of layered materials with controlled thickness, the intrinsic signal-amplification features of the proposed interaction scheme make it valuable for biosensing applications.

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Roberta Lanfranco, Pritam Kumar Jana, Gilles Bruylants, Pietro Cicuta, Bortolo Matteo Mognetti, Lorenzo Di Michele. 2020-08-10. Adaptable DNA interactions regulate surface triggered self assembly. https://arxiv.org/abs/2008.03991

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