Post modification of injection molded polystyrene components using green solvents and flexible masks
- Authors
- Wu, Si-Ying; Hulme, John P.
- Issue Date
- May-2015
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Injection molding; PDMS; Diffractive; Petri-dish; PS polystyrene
- Citation
- SENSORS AND ACTUATORS B-CHEMICAL, v.211, pp.187 - 197
- Journal Title
- SENSORS AND ACTUATORS B-CHEMICAL
- Volume
- 211
- Start Page
- 187
- End Page
- 197
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/10543
- DOI
- 10.1016/j.snb.2015.01.067
- ISSN
- 0925-4005
- Abstract
- In this paper two novel solvent based molding techniques were developed for the post modification of a selection of injection molded substrates. We will show that a variety of 2- and 3-D designs containing nano and micron size structures can be fabricated on flat, vertical and curved injection molded surfaces using a selection of green solvents in less than 48 h. The novel techniques used thin and thick film masters composed of polydimethylsiloxane and polyester in conjunction with a variety of pure and blended green solvents to modify injection molded polystyrene (PS). Moreover the said techniques allowed us to fabricate novel diffractive structures in injection molded polystyrene via multi-step soft imprint lithography (MSSIL). The new techniques were further validated by molding microfluidics components with integrated features ranging from 0.4 mu m to 150 mu m on dish in a single step. The effects of residual solvent on the viability and growth of E. coli O157 using grating cuvettes and petri-dishes were also measured and their effect on the hydrophobic recovery time of plasma treated injection molded polystyrene was recorded. We found the majority of the modified cuvettes did not exhibit any antioxidant or antibacterial properties and that the hydrophobic recovery time of oxidized polystyrene surfaces containing residual solvent did not significantly differ from plasma-treated pure polystyrene. (C) 2015 Elsevier B.V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 바이오나노대학 > 바이오나노학과 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.