✦ LIBER ✦

Multiphysics Modeling of Electrochemomechanically Smart Microgels Responsive to Coupled pH/Electric Stimuli

✍ Scribed by Hua Li; Rongmo Luo; Khin Yong Lam

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 372 KB
Volume: 9
Category: Article
ISSN: 1616-5187
DOI: 10.1002/mabi.200800139

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✦ Synopsis

Abstract

A multiphysics model is developed to simulate the responsive behavior of smart pH‐/electric‐sensitive hydrogels when immersed into pH buffer solution and subjected to an externally applied electric field, which is termed the MECpHe model. Comparison with experimental data shows the MECpHe model to be accurate and stable. The influence of the externally applied electric voltage is discussed with respect to the distribution of diffusive ionic species and the displacement of the hydrogel strip. The influences of initial charge density and ionic strength on the swelling ratio and the bending deformation of the microgel strip are studied.

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Meshless Modeling of pH-Sensitive Hydrogels Subjected to Coupled pH and Electric Field Stimuli: Young Modulus Effects and Case Studies

✍ Hua Li; Teng Yong Ng; Yong Kin Yew; Khin Yong Lam 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 311 KB

## Abstract The effect of Young's modulus on the behavior of pH‐sensitive hydrogels is studied when subjected to coupled stimuli of solution pH and externally applied electric field. The study is the first instance for coupled stimuli numerical analysis of the hydrogels, in which a multieffect‐coup