Irreversible adsorption of tethered chains at substrates: Monte Carlo study

The Journal of Chemical Physics
Radu DescasAlexander Blumen

Abstract

The irreversible adsorption of single chains grafted with one end to the surface is studied using scaling arguments and computer simulations. We introduce a two-phase model, in which the chain is described by an adsorbate portion and a corona portion formed by nonadsorbed monomers. The adsorption process can be viewed as consisting of a main stage, during which monomers join by "zipping" (along their order in the chain) the surface, and a late stage, in which the remaining corona collapses on the surface. Based on our model we derive a scaling relation for the time of adsorption t(M) as a function of the number M of adsorbed monomers; t(M) follows a power law, M(alpha), with alpha > 1. We find that alpha is related to the Flory exponent nu by alpha = 1 + nu. Using further scaling arguments we derive relations between the overall time of adsorption, the characteristic time of adsorption (given by the crossover time between the main and the last stage of adsorption), and the chain length. To support our analysis we perform Monte Carlo simulations using the bond fluctuation model. In particular, the sequence of adsorption events is very well reproduced by the simulations, and an analysis of the various density profiles supports ou...Continue Reading

References

Mar 14, 2003·Physical Review Letters·Ben O'Shaughnessy, Dimitrios Vavylonis
Mar 11, 2004·The European Physical Journal. E, Soft Matter·B O'Shaughnessy, D Vavylonis
Mar 11, 2004·The European Physical Journal. E, Soft Matter·U RavivT A Witten
Mar 11, 2004·The European Physical Journal. E, Soft Matter·S Granick
Jul 23, 2004·The Journal of Chemical Physics·Radu DescasAlexander Blumen
Aug 25, 2004·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Michel G Gauthier, Gary W Slater
Apr 26, 2005·The Journal of Chemical Physics·Radu DescasAlexander Blumen

❮ Previous
Next ❯

Citations

May 30, 2013·The European Physical Journal. E, Soft Matter·Gabriel O Ibáñez-GarcíaS Hanna
Dec 18, 2013·Journal of the American Chemical Society·Stefanie KrysiakThorsten Hugel
May 29, 2007·Journal of Colloid and Interface Science·Xianren ZhangZihao Wang
Dec 10, 2017·Scientific Reports·Samuel Bell, Eugene M Terentjev
Jul 23, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·S BhattacharyaT A Vilgis
Jun 17, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Debabrata PanjaAnatoly B Kolomeisky
Oct 8, 2016·Soft Matter·Wei Chien, Yeng-Long Chen
Sep 27, 2014·Physical Chemistry Chemical Physics : PCCP·Qing-Hui YangMeng-Bo Luo
Jun 1, 2014·Physical Review Letters·R FrederickxE Carlon
May 21, 2010·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Takahiro Sakaue

❮ Previous
Next ❯

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
S BhattacharyaThomas A Vilgis
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Amit P MehtaJames P Sethna
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Hong LiMeng-Bo Luo
© 2021 Meta ULC. All rights reserved