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Title: Ordering nanoparticles with polymer brushes

Authors:
ORCiD logo [1];  [2]; ORCiD logo [2]
  1. Department of Physics, Center for Soft Matter and Biological Physics, and Macromolecules Innovation Institute, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
  2. Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1412002
Grant/Contract Number:
AC02-05CH11231; NA-0003525
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 147; Journal Issue: 22; Related Information: CHORUS Timestamp: 2018-02-14 17:15:42; Journal ID: ISSN 0021-9606
Publisher:
American Institute of Physics
Country of Publication:
United States
Language:
English

Citation Formats

Cheng, Shengfeng, Stevens, Mark J., and Grest, Gary S.. Ordering nanoparticles with polymer brushes. United States: N. p., 2017. Web. doi:10.1063/1.5006048.
Cheng, Shengfeng, Stevens, Mark J., & Grest, Gary S.. Ordering nanoparticles with polymer brushes. United States. doi:10.1063/1.5006048.
Cheng, Shengfeng, Stevens, Mark J., and Grest, Gary S.. 2017. "Ordering nanoparticles with polymer brushes". United States. doi:10.1063/1.5006048.
@article{osti_1412002,
title = {Ordering nanoparticles with polymer brushes},
author = {Cheng, Shengfeng and Stevens, Mark J. and Grest, Gary S.},
abstractNote = {},
doi = {10.1063/1.5006048},
journal = {Journal of Chemical Physics},
number = 22,
volume = 147,
place = {United States},
year = 2017,
month =
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on December 8, 2018
Publisher's Accepted Manuscript

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  • No abstract prepared.
  • A crucial function in the survival of biological cells is the ability to regulate the boundary between the local environment and the interior of the cell. A mechanism that has evolved for this purpose is the inclusion of channels in the cell membrane, which permit the selective transport of molecules in and out of the system. The channels are lined with chains that are highly sensitive to variations in the surrounding environment, such as changes in pH or salt concentration. In response to such fluctuations, the chains can change their conformations and thereby cause the pores to open or close.more » An intriguing challenge lies in designing synthetic polymer systems that can mimic this gating behavior. Of particular interest is fabricating smart polymer channels that sense and respond to changes in the environment. Applications for such systems would be manifold, including controlled release, selective filtration, electronic devices, or sensors. In this paper, the authors use a two-dimensional self-consistent mean-field (SCF) theory to design a polymer channel that can be made to open and close by varying the pH of the solvent. These studies provide a theoretical framework for understanding the mechanism by which polymers can act as pH-dependent valves. The distinct advantage of performing the calculations in two dimensions is that the authors can determine how both the vertical and lateral properties of the grafted layer are affected by surrounding solvent conditions. By systematically varying the relevant parameters, they determine the optimal design criteria for synthesizing smart polymer pores.« less
  • No abstract prepared.