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Issue 36, 2020
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Adaptable DNA interactions regulate surface triggered self assembly

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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.

Graphical abstract: Adaptable DNA interactions regulate surface triggered self assembly

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Supplementary files

Article information


Submitted
11 Jun 2020
Accepted
24 Aug 2020
First published
25 Aug 2020

This article is Open Access

Nanoscale, 2020,12, 18616-18620
Article type
Communication

Adaptable DNA interactions regulate surface triggered self assembly

R. Lanfranco, P. K. Jana, G. Bruylants, P. Cicuta, B. M. Mognetti and L. Di Michele, Nanoscale, 2020, 12, 18616 DOI: 10.1039/D0NR04461J

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