123rd General Meeting of the KCS

Type Symposium
Area New Frontiers in Electrochemistry: Fundamentals and Applications
Room No. Room 407+408
Time THU 16:40-17:10
Code ELEC1-3
Subject Electrophoretic Deposition for the Development of Bio-compatible Hydrogel-CNT Composites
Authors Young Soo Joung
Department of Mechanical Systems Engineering, Sookmyung Women's University, Korea
Abstract In this work we present a novel method to fabricate composite nanomaterials in hydrogel membranes using electrophoretic deposition (EPD) at the interface of two immiscible liquids. Hydrogels have been employed for bio-materials due to their outstanding bio-compatibility, high porosity, and notable swelling capabilities. Further, conductive hydrogel films have been investigated because they can provide a critical methodology to sense and diagnose biological systems or be used in energy storage applications. Here, we propose a novel process employing electrophoretic deposition (EPD) at the interface of immiscible liquids to create composite hydrogel films. EPD uses electrophoresis to deposit thin films of nanoparticles normally onto conductive solid-substrates. However, during interfacial EPD, nanoparticles such as carbon nanotubes (CNTs) electro-migrate to an oil/water interface, where polymer cross-linking is induced to form composite hydrogel membranes. The key aspect of this method is that polymerization occurs away from a solid substrate while surrounded by both polar and nonpolar media, allowing for the integration of CNTs or other nanoparticles into the hydrogel. Properties of the composite hydrogel films are controlled by the deposition parameters and polymerization time, facilitating mass production without the need for complex machinery. This fabrication method is cost-effective and scalable for composite hydrogels with tunable electrical, mechanical, and biological properties. Potential applications include fabrication of doped hydrogels for drug delivery and conductive hydrogels for biological sensing.
E-mail ysjoung@sm.ac.kr