Dynamic self-assembly of colloids through periodic variation of inter-particle potentials

Soft Matter
Sumedh R Risbud, James W Swan

Abstract

A short-ranged and time-varying attraction drives self-assembly of colloidal crystals from a suspension of colloidal spheres. Brownian dynamics simulations of this process demonstrate that the envelope for self-assembly of large, low defect crystals is broadened dramatically when this attractive interaction is switched on and off periodically in time. This process is termed dynamic self-assembly because temporal control of the inter-particle potential requires injection and extraction of energy from the self-assembling materials. We develop a theory using non-equilibrium statistical mechanics to determine the rate at which particles cross a similarly switched energy barrier, and show that there is a switching rate that maximizes barrier crossing. While barrier crossing towards thermodynamic equilibrium is limited by the Kramers hopping rate, the rate of out-of-equilibrium barrier crossing can exceed this limit. In the context of self-assembly, barrier crossing is the rate limiting step and responsible for both defect formation and slow nucleation. This simple theory is used to explain the optimal switching rate observed in our simulations of dynamic self-assembly. Dynamic self-assembly via switched potentials enables growth of ...Continue Reading

References

Dec 1, 1995·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·B J Ackerson, K Schätzel
May 21, 2005·Physical Review Letters·Antti-Pekka Hynninen, Marjolein Dijkstra
Jul 26, 2006·The Journal of Chemical Physics·Samartha G Anekal, Michael A Bevan
Feb 1, 2008·Nature·Dmytro NykypanchukOleg Gang
May 24, 2008·Nature·Peter J LuDavid A Weitz
Jun 4, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Amit GoyalOrlin D Velev
Jun 12, 2009·Small·Kyle J M BishopBartosz A Grzybowski
Jun 24, 2010·ACS Nano·Marek GrzelczakLuis M Liz-Marzán
Oct 12, 2010·Nanoscale·Peter G Vekilov
Oct 20, 2011·Nano Letters·Jonathan A FanFederico Capasso
Sep 19, 2012·Proceedings of the National Academy of Sciences of the United States of America·James W SwanEric M Furst
May 6, 2014·Soft Matter·James W SwanEric M Furst

❮ Previous
Next ❯

Citations

Mar 19, 2016·Soft Matter·Ronal A DeLaCruz-AraujoUbaldo M Córdova-Figueroa
Jan 15, 2016·Faraday Discussions·M Tagliazucchi, I Szleifer
Apr 21, 2016·ACS Nano·Zachary M Sherman, James W Swan
Jun 4, 2019·The Journal of Chemical Physics·Anna C H CoughlanMichael A Bevan
Sep 20, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Zachary M ShermanJames W Swan
Mar 1, 2018·The Journal of Physical Chemistry. B·Cheng LongYu-Qiang Ma

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Andrea FortiniMarjolein Dijkstra
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
K G Wang
Physical Review Letters
D J AastuenB J Ackerson
Journal of Colloid and Interface Science
Davide BochicchioRiccardo Ferrando
The Journal of Chemical Physics
Daphne Klotsa, Robert L Jack
© 2021 Meta ULC. All rights reserved