Results 91 to 100 of about 52,851 (290)

Structural Evolution of Low-Molecular-Weight Poly(ethylene oxide)-block-polystyrene Diblock Copolymer Thin Film

open access: yesThe Scientific World Journal, 2013
The structural evolution of low-molecular-weight poly(ethylene oxide)-block-polystyrene (PEO-b-PS) diblock copolymer thin film with various initial film thicknesses on silicon substrate under thermal annealing was investigated by atomic force microscopy,
Hui Wu, Xiaohua Huang
doaj   +1 more source

Research process of elastic fiber oscillation during its rotation

open access: yesГірничі, будівельні, дорожні та меліоративні машини, 2019
With every passing year, the flexible abrasive tool is increasingly used. It is used in the cleaning of metal and non-metal surfaces from paint coatings, rust and all kinds of impurities.
Yuri Abrashkevych   +3 more
doaj   +1 more source

Bundling in brushes of directed and semiflexible polymers

open access: yes, 2013
We explore the effect of an attractive interaction between parallel-aligned polymers, which are perpendicularly grafted on a substrate. Such an attractive interaction could be due to, e.g., reversible cross-links.
Benetatos, Panayotis   +2 more
core   +1 more source

Catch, Release, Repeat: Reversible Protein Capture in Electric Fields Using Antifouling Polymer Brushes

open access: yesAdvanced Materials Interfaces, EarlyView.
ABSTRACT Capturing proteins is easy since their amphiphilic nature allows them to bind to almost any surface. Because of this, releasing them is challenging since various interactions need to be considered for this. We present a simple method to reversibly adsorb proteins on stabilized electrodes.
Erik J. Postma   +3 more
wiley   +1 more source

Signatures of a Concentration Dependent Flory chi Parameter: Swelling and Collapse of Coils and Brushes

open access: yes, 2002
The quality of solvents of polymers is often described in terms of the Flory chi parameter typically assumed to depend only on the temperature, T. In certain polymer-solvent systems fitting the experimental data enforces the replacement of chi(T) by a ...
Baulin, V. A., Halperin, A.
core   +1 more source

Light‐Programmable Interfaces: From Molecular Photoswitching to Adaptive Membrane Separations

open access: yesAdvanced Materials Interfaces, EarlyView.
This review advances an interface‐centered framework for light‐responsive membranes, linking molecular photoswitches (azobenzene (AZO), spiropyran (SP), diarylethene (DAE), donor–acceptor Stenhouse adducts (DASA), photoacid) to integration strategies in polymeric, porous, self‐assembled, and mixed‐matrix systems.
Liangliang Zhang   +6 more
wiley   +1 more source

Computer simulation of bottle brush polymers with flexible backbone: Good solvent versus Theta solvent conditions

open access: yes, 2011
By Molecular Dynamics simulation of a coarse-grained bead-spring type model for a cylindrical molecular brush with a backbone chain of $N_b$ effective monomers to which with grafting density $\sigma$ side chains with $N$ effective monomers are tethered ...
Binder, Kurt   +3 more
core   +1 more source

Preparation of exenatide-loaded linear poly(ethylene glycol)-brush poly(L-lysine) block copolymer: potential implications on diabetic nephropathy

open access: yesInternational Journal of Nanomedicine, 2017
Fei Tong Department of Pathology and Pathophysiology, Provincial Key Discipline of Pharmacology, Jiaxing University Medical College, Jiaxing, Zhejiang, People’s Republic of China Abstract: The poly(ethylene glycol)-b-brush poly(l-lysine) polymer (
Tong F
doaj  

Thermoresponsive block-copolymer brush-modified interfaces for effective fabrication of hepatocyte sheets

open access: yesMaterials & Design
Hepatic tissue engineering has been investigated for the treatment of liver disease. One promising tissue is the hepatocyte sheet, cultured in temperature-responsive cell culture dishes.
Kenichi Nagase   +3 more
doaj   +1 more source

Pattern Formation in Non‐Equilibrium Architected Materials

open access: yesAdvanced Materials Technologies, EarlyView.
This article demonstrates an artificial mechanical system ‐ a robotic metamaterial ‐ as an accessible and versatile platform within which to explore and prescribe the reaction‐diffusion driven pattern formation hitherto associated with comparatively less accessible and versatile non‐equilibrium biological and chemical systems.
Vinod Ramakrishnan, Michael J. Frazier
wiley   +1 more source

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