title: Preparation of Microstructure Molds of Montmorillonite/Polyethylene Glycol Diacrylate and Multi-Walled Carbon Nanotube/Polyethylene Glycol Diacrylate Nanocomposites for Miniaturized Device Applications.
abstract: Environmentally friendly microstructure molds with montmorillonite (MMT) or multi-walled carbon nanotube (MWCNT) reinforced polyethylene glycol diacrylate (PEGDA) nanocomposites have been prepared for miniaturized device applications. The micropatterning of MMT/PEGDA and MWCNT/PEGDA with 0.5 to 2.0 wt% of MMTs and MWCNTs was achieved through a UV curing process with micro-patterned masks. Hexagonal dot arrays and complex patterns for microstructures of the nanocomposites were produced and characterized with an optical microscope; their thermal properties were studied by thermogravimetric analysis (TGA). The TGA results showed that these nanocomposites were thermally stable up to 350 °C. Polydimethylsiloxane thin replicas with different microstructures were prepared by a casting method using the microstructured nanocomposites as molds. It is considered that these microstructure molds of the nanocomposites can be used as microchip molds to fabricate nanobio-chips and medical diagnostic chip devices.
authors.forename: Young Ho
authors.initials: YH
authors.lastname: Kim
authors.forename: Jeong-Woo
authors.initials: JW
authors.lastname: Sohn
authors.forename: Youngjae
authors.initials: Y
authors.lastname: Woo
authors.forename: Joo-Hyun
authors.initials: JH
authors.lastname: Hong
authors.forename: Gyu Man
authors.initials: GM
authors.lastname: Kim
authors.forename: Bong Keun
authors.initials: BK
authors.lastname: Kang
authors.forename: Juyoung
authors.initials: J
authors.lastname: Park
mesh_terms: D001546:Bentonite / Q000737:chemistry*; D055617:Micro-Electrical-Mechanical Systems; D053761:Nanocomposites / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000737:chemistry*
chemical_list: D037742:Nanotubes, Carbon; D001546:Bentonite; D011092:Polyethylene Glycols