title: Electrical behavior of polymer hydrogel composed of poly(vinyl alcohol)-hyaluronic acid in solution.
abstract: Interpenetrating polymer networks (IPN), as polymer hydrogels composed of poly(vinyl alcohol) (PVA) and hyaluronic acid (HA), which exhibited electrical sensitive behavior were prepared. The swelling behavior of the IPN/HA IPN was studied by immersing the gel in various concentrations of aqueous NaCl solutions and various pH buffer solutions. The response of the PVA/HA IPN to electric fields stimuli was also investigated. When swollen IPN was placed between a pair of electrodes, and an electric field applied, it exhibited bending behavior. The PVA/HA IPN also displayed stepwise bending behavior, depending on the magnitude of the electric stimulus. Also, for use in biosensors application, their bending behavior was studied in Hank's solution at pH 7.4.
authors.affiliation: Department of Biomedical Engineering, Hanyang University, Sungdong, Seoul 133-605, South Korea.
authors.forename: Seon Jeong
authors.initials: SJ
authors.lastname: Kim
authors.forename: Seoung Gil
authors.initials: SG
authors.lastname: Yoon
authors.forename: Young Moo
authors.initials: YM
authors.lastname: Lee
authors.forename: Hee Chan
authors.initials: HC
authors.lastname: Kim
authors.forename: Sun I
authors.initials: SI
authors.lastname: Kim
mesh_terms: D001672:Biocompatible Materials / Q000032:analysis / Q000737:chemistry*; D004548:Elasticity; D004563:Electrochemistry / Q000379:methods; D004574:Electromagnetic Fields; D006820:Hyaluronic Acid / Q000032:analysis / Q000737:chemistry* / Q000528:radiation effects*; D020100:Hydrogels / Q000032:analysis / Q000737:chemistry* / Q000528:radiation effects*; D006863:Hydrogen-Ion Concentration; D008422:Materials Testing / Q000379:methods*; D008968:Molecular Conformation / Q000528:radiation effects; D009997:Osmotic Pressure; D011108:Polymers / Q000032:analysis / Q000737:chemistry / Q000528:radiation effects; D011142:Polyvinyl Alcohol / Q000032:analysis / Q000737:chemistry* / Q000528:radiation effects*; D012965:Sodium Chloride / Q000737:chemistry*; D012996:Solutions
chemical_list: D001672:Biocompatible Materials; D020100:Hydrogels; D011108:Polymers; D012996:Solutions; C492074:poly(vinyl alcohol)-hylauronic acid; D012965:Sodium Chloride; D011142:Polyvinyl Alcohol; D006820:Hyaluronic Acid