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Displaying 526 - 550 of 3718

Lower critical solution temperature in polyelectrolyte coacervates

February 26, 2019
Author(s)
Samim Ali, Markus Bleuel, Vivek Prabhu
Model linear oppositely-charged polyelectrolyte complexes exhibit a lower critical solution temperature. The coexist-ence curves narrow with increasing monovalent salt concentration (Cs) that lowers the polymer concentration (Cp) in the polymer-rich phase

Identification of a mechanogenetic link between substrate stiffness and chemotherapeutic response in breast cancer

February 25, 2019
Author(s)
Brian G. Bush, Scott H. Medina, Emily Sevcik, Maggie Cam, Frank W. DelRio, Kaustav Nandy, Joel P. Schneider
Mechanical feedback from the tumor microenvironment regulates an array of processes underlying cancer biology. For example, increased stiffness of mammary extracellular matrix (ECM) drives malignancy and alters the phenotypes of breast cancer cells

Upstream vortex and elastic wave in the viscoelastic flow around a confined cylinder

January 28, 2019
Author(s)
Boyang Qin, Paul Salipante, Steven Hudson, Paulo E. Arratia
The viscoelastic flow past cylinder is a classic benchmark problem that is not completely understood. Using novel holographic particle velocimetry, we report two main discoveries of the elastic instability upstream of a single cylinder in confined channel

Uncertainty Quantification of Failure Probability and a Dynamic Risk Analysis of Decision Making for Maintenance of Ageing Infrastructure

January 2, 2019
Author(s)
Jeffrey T. Fong, James J. Filliben, Nathanael A. Heckert, Dennis D. Leber, Paul A. Berkman, Robert E. Chapman
Risk, as the product of failure probability and failure consequence, has been estimated and applied by engineers and managers to help make critical decisions on (a) maintenance of ageing plants, and (b) planning of new infrastructure. For ageing plants

Hidden Hyperuniformity in Bottlebrush Polymer Melts

December 21, 2018
Author(s)
Alexandros Chremos, Jack F. Douglas
We show that the backbone chains of bottlebrush polymer melts exhibit a hidden hyperuniform packing over a wide temperature range above glass transition temperature. These findings open a venue for a practical design of hyperuniform polymeric materials for

The Effects of Long Range Sidechain Ordering on Backbone Ordering and Optoelectronic Properties in Semiconducting Polymers

December 12, 2018
Author(s)
Joshua H. Carpenter, Masoud Ghasemi, Eliot Gann, Indunil Angunawela, Samuel Stuard, Liang Yan, Earl RItchie, Brendan O'Connor, Dean DeLongchamp, Harald Ade
Molecular ordering and packing greatly impacts the electronic and optoelectronic properties of semiconducting polymers. Despite much prior effort, the competing or synergistic ordering of the sidechains and aromatic cores has never been fully researched

A simple and robust approach to reducing contact resistance in organic devices

December 3, 2018
Author(s)
Lamport Zachary, Katrina Barth, Hyunsu Lee, Martin Guthold, Iain McCulloch, John E. Anthony, Lee J. Richter, Eliot Gann, Dean DeLongchamp, Oana Jurchescu
Efficient injection of charge carriers from the contacts into the semiconductor layer is crucial for achieving high-performance organic devices. The potential drop necessary to accomplish this process yields a resistance associated with the contacts
Displaying 526 - 550 of 3718
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