Department of Materials Science and Engineering, Kookmin Univ.
We focused on developing 3-dimensional architectures using a variety of additives, incorporating 3D printing, UV-curable materials, and electrospinning techniques. This approach allows for precise fabrication and customization, contributing to advancements in fields such as biosensors and advanced materials.
Our emphasis is on synthesizing functional resins for use in 3D printers (including laser-based stereolithography (SLA) and digital light processing (DLP)) to fabricate cross-linked architectures with various chemical functionalities. These materials range from acrylate-based UV-curable substances to shape-memory polymers, which can be programmed to change shape at specific temperatures and then mechanically altered. |
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We fabricated Poly(HEMA-co-MAETC) microbeads via electrospray using a photopolymerization method. Electrospraying has been reported as a promising technique for bead fabrication due to its advantages, including the absence of organic solvents, the ability to encapsulate a wide range of materials, and ease of bead size control. These biocompatible charge-controlled beads were applied as the microbial-based sensor for the detection of nitro compounds such as TNT, which is an explosive component. [1] |
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We prepared tungsten oxide and PEO solutions in various ratios and electrospun them into fibers. Electrospinning is a method where a high voltage is applied between a conductive substrate and a needle, allowing polymers to be spun into fiber form. This technique offers advantages in large-area and high-volume production. To achieve a fast response time, we designed a fiber-type electrochromic layer with a high surface area and incorporated ion-conducting PEO. The electrospun fibers can be manufactured regardless of the substrate and were implemented as electrochromic devices on actual fabric. [2] |
Relevant Publication
1 |
Kim, S.; Kim, H.; Qiao, T.; Cha, C.; Lee, S.; Lee, K.; Ro, H.; Kim, Y.; Lee, W.; Lee, H.*, Fluorescence Enhancement from Nitro-Compound-Sensitive Bacteria within Spherical Hydrogel Scaffolds. ACS Applied Materials & Interfaces 2019, 11(15), 14354-14361.
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Kwon, H.; Kim, S.; Ham, M.; Park, Y.; Kim, H.*, Lee, W.*, Lee, H.* ,Enhanced Coloration Time of Electrochromic Device Using Integrated WO3@ PEO Electrodes for Wearable Devices. Biosensors 2023, 13(2), 194.
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