Divalent Multilinking Bonds Control Growth and Morphology of Nanopolymers

Autor(en)

Yan Xiong, Zhiwei Lin, Deniz Mostarac, Brian Minevich, Qiuyuan Peng, Guolong Zhu, Pedro A. Sánchez, Sofia Kantorovich, Yonggang Ke, Oleg Gang

Abstrakt

Assembly of nanoscale objects into linear architectures resembling molecular polymers is a basic organization resulting from divalent interactions. Such linear architectures occur for particles with two binding patches on opposite sides, known as Janus particles. However, unlike molecular systems where valence bonds can be envisioned as pointlike interactions nanoscale patches are often realized through multiple molecular linkages. The relationship between the characteristics of these linkages, the resulting interpatch connectivity, and assembly morphology is not well-explored. Here, we investigate assembly behavior of model divalent nanomonomers, DNA nanocuboid with tailorable multilinking bonds. Our study reveals that the characteristics of individual molecular linkages and their collective properties have a profound effect on nanomonomer reactivity and resulting morphologies. Beyond linear nanopolymers, a common signature of divalent nanomonomers, we observe an effective valence increase as linkages lengthened, leading to the nanopolymer bundling. The experimental findings are rationalized by molecular dynamics simulations.

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie, Forschungsplattform MMM Mathematics-Magnetism-Materials

Externe Organisation(en)

Columbia University in the City of New York, Ural Federal University, Georgia Institute of Technology, Emory University, Brookhaven National Laboratory

Journal

Nano Letters

Band

21

Seiten

10547-10554

Anzahl der Seiten

8

ISSN

1530-6984

DOI

https://doi.org/10.1021/acs.nanolett.1c03009

Publikationsdatum

10-2021

Peer-reviewed

Ja

ÖFOS 2012

103043 Computational Physics, 103023 Polymerphysik, 210004 Nanomaterialien

Schlagwörter

ASJC Scopus Sachgebiete

Condensed Matter Physics, Mechanical Engineering, Bioengineering, Allgemeine Chemie, Allgemeine Materialwissenschaften

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/8607c3ab-f301-4d55-b3cf-edc23215419d