Molecular-Level Processing of Conjugated Polymers. 3. Layer-by-Layer Manipulation of Polyaniline via Electrostatic Interactions

1997 ◽  
Vol 30 (9) ◽  
pp. 2712-2716 ◽  
Author(s):  
J. H. Cheung ◽  
W. B. Stockton ◽  
M. F. Rubner
Keyword(s):  
Conjugated Polymers ◽  
Electrostatic Interactions ◽  
Molecular Level ◽  
Layer By Layer

Advancing conjugated polymers into nanometer-scale devices

2006 ◽  
Vol 78 (10) ◽  
pp. 1803-1822 ◽  
Author(s):  
Wenping Hu ◽  
Hiroshi Nakashima ◽  
Erjing Wang ◽  
Kazuaki Furukawa ◽  
Hongxiang Li ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Molecular Level ◽  
Nanometer Scale ◽  
Transport Mechanisms ◽  
Phenylene Ethynylene ◽  
Polymer Molecules ◽  
Polymer Electronics ◽  
End Groups

In this article, we review the possibility of combining conjugated polymers with nanometer-scale devices (nanodevices), in order to introduce the properties associated with conjugated polymers into such nanodevices. This approach envisages combining the highly topical disciplines of polymer electronics and nanoelectronics to engender a new subdirection of polymer nanoelectronics, which can serve as a tool to probe the behavior of polymer molecules at the nanometer/molecular level, and contribute to clarifying transport mechanisms in conjugated polymers. In this study, we exemplify this combination, using a family of linear and conjugated polymers, poly(p-phenylene-ethynylene)s (PPEs) with thiolacetate-functionalized end groups.

scholarly journals Decomposition of Glucose-Sensitive Layer-by-Layer Films Using Hemin, DNA, and Glucose Oxidase

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 319 ◽  
Author(s):  
Kentaro Yoshida ◽  
Yu Kashimura ◽  
Toshio Kamijo ◽  
Tetsuya Ono ◽  
Takenori Dairaku ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Glucose Oxidase ◽  
Dna Cleavage ◽  
Electrostatic Interactions ◽  
Glucose Solution ◽  
Layer By Layer ◽  
Sensitive Layer ◽  
Physiological Conditions ◽  
Lbl Films ◽  
Low Glucose

Glucose-sensitive films were prepared through the layer-by-layer (LbL) deposition of hemin-modified poly(ethyleneimine) (H-PEI) solution and DNA solution (containing glucose oxidase (GOx)). H-PEI/DNA + GOx multilayer films were constructed using electrostatic interactions. The (H-PEI/DNA + GOx)5 film was then partially decomposed by hydrogen peroxide (H2O2). The mechanism for the decomposition of the LbL film was considered to involve more reactive oxygen species (ROS) that were formed by the reaction of hemin and H2O2, which then caused nonspecific DNA cleavage. In addition, GOx present in the LbL films reacts with glucose to generate hydrogen peroxide. Therefore, decomposition of the (H-PEI/DNA + GOx)5 film was observed when the thin film was immersed in a glucose solution. (H-PEI/DNA + GOx)5 films exposed to a glucose solution for periods of 24, 48 72, and 96 h indicated that the decomposition of the film increased with the time to 9.97%, 16.3%, 23.1%, and 30.5%, respectively. The rate of LbL film decomposition increased with the glucose concentration. At pH and ionic strengths close to physiological conditions, it was possible to slowly decompose the LbL film at low glucose concentrations of 1–10 mM.

Layer-by-layer assembled enzyme multilayers with adjustable memory performance and low power consumption via molecular-level control

2012 ◽  
Vol 22 (11) ◽  
pp. 4645 ◽  
Author(s):  
Hyunhee Baek ◽  
Chanwoo Lee ◽  
Jeongju Park ◽  
Younghoon Kim ◽  
Bonkee Koo ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Molecular Level ◽  
Memory Performance ◽  
Low Power Consumption ◽  
Layer By Layer ◽  
Level Control

Layer-by-Layer Assemblies of Catechol-Functionalized TiO2Nanoparticles and Porphyrins through Electrostatic Interactions

2015 ◽  
Vol 21 (13) ◽  
pp. 5041-5054 ◽  
Author(s):  
Alexandra Burger ◽  
Rubén D. Costa ◽  
Volodymyr Lobaz ◽  
Wolfgang Peukert ◽  
Dirk M. Guldi ◽  
...  
Keyword(s):  
Electrostatic Interactions ◽  
Layer By Layer

Bipyridyl-modified phosphonium polyelectrolytes: synthesis, photophysics, metal ion coordination and layer-by-layer assembly with anionic conjugated polymers

2013 ◽  
Vol 4 (21) ◽  
pp. 5387 ◽  
Author(s):  
Samantha L. Kristufek ◽  
Thora R. Maltais ◽  
Eleanor G. Tennyson ◽  
Naresh C. Osti ◽  
Dvora Perahia ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Metal Ion ◽  
Layer By Layer ◽  
Layer By Layer Assembly ◽  
Layer Assembly

scholarly journals Structural insights into Lewis acid and F4TCNQ doped conjugated polymers by solid-state magnetic resonance spectroscopy

2022 ◽  
Author(s):  
Alana Dixon ◽  
Herve Vezin ◽  
Thuc-Quyen Nguyen ◽  
G. N. Manjunatha Reddy
Keyword(s):  
Solid State ◽  
Magnetic Resonance ◽  
Conjugated Polymers ◽  
Organic Semiconductors ◽  
Carrier Mobility ◽  
Molecular Level ◽  
Charge Carrier Mobility ◽  
Resonance Spectroscopy ◽  
Molecular Doping ◽  
Structural Insights

Molecular doping strategies facilitate orders of magnitudes enhancements in the charge carrier mobility of organic semiconductors (OSCs). Understanding the mechanisms of different doping strategies for OSCs and molecular-level constraints on...

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