NDLI: Self-Assembly Dynamics of Reconfigurable Colloidal Molecules.

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Self-Assembly Dynamics of Reconfigurable Colloidal Molecules.

Content Provider	Europe PMC
Author	Chakraborty, Indrani Pearce, Daniel J. G. Verweij, Ruben W. Matysik, Sabine C. Giomi, Luca Kraft, Daniela J.
Copyright Year	2022
Abstract	Colloidal moleculesare designed to mimic their molecular analoguesthrough their anisotropic shape and interactions. However, currentexperimental realizations are missing the structural flexibility presentin real molecules thereby restricting their use as model systems.We overcome this limitation by assembling reconfigurable colloidalmolecules from silica particles functionalized with mobile DNA linkersin high yields. We achieve this by steering the self-assembly pathwaytoward the formation of finite-sized clusters by employing high numberratios of particles functionalized with complementary DNA strands.The size ratio of the two species of particles provides control overthe overall cluster size, i.e., the number of boundparticles N, as well as the degree of reconfigurability.The bond flexibility provided by the mobile linkers allows the successfulassembly of colloidal clusters with the geometrically expected maximumnumber of bound particles and shape. We quantitatively examine theself-assembly dynamics of these flexible colloidal molecules by acombination of experiments, agent-based simulations, and an analyticalmodel. Our “flexible colloidal molecules” are excitingbuilding blocks for investigating and exploiting the self-assemblyof complex hierarchical structures, photonic crystals, and colloidalmetamaterials.
ISSN	19360851
Journal	ACS Nano
Volume Number	16
PubMed Central reference number	PMC8867909
Issue Number	2
PubMed reference number	35080387
e-ISSN	1936086X
DOI	10.1021/acsnano.1c09088
Language	English
Publisher	American Chemical Society
Publisher Date	2022-01-26
Access Restriction	Open
Rights License	Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). © 2022 The Authors. Published by American Chemical Society
Subject Keyword	structural flexibility colloidal clusters mobile DNA linkers controlledvalence self-assembly
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Physics and Astronomy Engineering Materials Science

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