نتایج جستجو برای: electroactive polymer

تعداد نتایج: 94662  

2017
Qingsheng Zhang Dorna Esrafilzadeh Jeremy M. Crook Robert Kapsa Elise M. Stewart Eva Tomaskovic-Crook Gordon G. Wallace Xu-Feng Huang

Deficits in neurite outgrowth, possibly involving dysregulation of risk genes neuregulin-1 (NRG1) and disrupted in schizophrenia 1 (DISC1) have been implicated in psychiatric disorders including schizophrenia. Electrical stimulation using conductive polymers has been shown to stimulate neurite outgrowth of differentiating human neural stem cells. This study investigated the use of the electroac...

2017
Sandipan Roy Jaehwan Kim Moumita Kotal Kwang Jin Kim Il‐Kwon Oh

Electroactive soft actuators and bioinspired artificial muscles have received burgeoning interest as essential components in future electronic devices such as soft haptic-feedback systems, human-friendly wearable electronics, and active biomedical devices. However, important challenging issues including fast response time, ultralow input power, robust operation in harsh environments, high-resol...

Journal: :Advanced healthcare materials 2016
Donata Iandolo Akhilandeshwari Ravichandran Xianjie Liu Feng Wen Jerry K Y Chan Magnus Berggren Swee-Hin Teoh Daniel T Simon

Bones have been shown to exhibit piezoelectric properties, generating electrical potential upon mechanical deformation and responding to electrical stimulation with the generation of mechanical stress. Thus, the effects of electrical stimulation on bone tissue engineering have been extensively studied. However, in bone regeneration applications, only few studies have focused on the use of elect...

2011
L. O. Ekebafe D. E. Ogbeifun F. E. Okieimen

The use of polymer in agriculture is gaining popularity in science, particularly in the field of polymer chemistry. This has provided solutions to the problems of the present day agriculture which is to maximize land and water productivity without threatening the environment and the natural resources. Superabsorbent polymer hydrogels potentially influence soil permeability, density, structure, ...

Journal: :Journal of the American Chemical Society 2011
Klaudia Wagner Robert Byrne Michele Zanoni Sanjeev Gambhir Lynn Dennany Robert Breukers Michael Higgins Pawel Wagner Dermot Diamond Gordon G Wallace David L Officer

An electroactive nitrospiropyran-substituted polyterthiophene, poly(2-(3,3''-dimethylindoline-6'-nitrobenzospiropyranyl)ethyl 4,4''-didecyloxy-2,2':5',2''-terthiophene-3'-acetate), has been synthesized for the first time. The spiropyran, incorporated into the polymer backbone by covalent attachment to the alkoxyterthiophene monomer units, leads to multiple colored states as a result of both pho...

Journal: :Polymers 2023

In recent decades, significant research efforts have been devoted to studying various types of actuators. Of particular interest are soft actuators based on electroactive polymers, which offer low operating voltage, light weight, and fast response. this study, we demonstrate the feasibility a linear actuator fabricated from polypyrrole (PPy), an polymer that is easy synthesize, cost-effective, ...

2017
Ida Nuramdhani Argun Talat Gokceoren Sheilla Atieno Odhiambo Gilbert De Mey Carla Hertleer Lieva Van Langenhove

A textile-based energy storage device with electroactive PEDOT:PSS (poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate)) polymer functioning as a solid-state polyelectrolyte has been developed. The device was fabricated on textile fabric with two plies of stainless-steel electroconductive yarn as the electrodes. In this study, cyclic voltammetry and electrochemical impedance analysis were...

Journal: :Chemistry 2011
Mutsumi Kimura Akiko Kitao Tadashi Fukawa Hirofusa Shirai

Two novel dendritic macromonomers 7 and 8 functionalized with electroactive conjugated thiophene oligomers were synthesized by stepwise cross-coupling reactions and the introduction of a vinyl group at the focal point. Both macromonomers were polymerized into dendronized polymers 9 and 10 by using a radical polymerization method. The photophysical and redox behaviors of dendronized polymers 9 a...

2009
Henry S. White Johna Leddy Allen J. Bard

The mechanism of charge transport through Nafion polymers coated on glassy carbon electrodes and containing Cp2FeTMA+, R~(bpy),~+, and O~(bpy),~+ (where Cp2FeTMA+ is [(trimethylammonio)methyl]ferrocene, bpy = 2,2'-bipyridine) is described. The apparent diffusion coefficients, Dam,, of polymer modified electrodes, as measured by conventional electrochemical methods and which can include contribu...

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