DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Choi, Insung S. | - |
dc.contributor.advisor | 최인성 | - |
dc.contributor.author | Choi, Sohee | - |
dc.date.accessioned | 2019-09-04T02:52:25Z | - |
dc.date.available | 2019-09-04T02:52:25Z | - |
dc.date.issued | 2018 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=734175&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/267344 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 화학과, 2018.2,[iv, 42 p. :] | - |
dc.description.abstract | Tannic acid (TA), a ubiquitous natural polyphenol, is and its derivatives make stable metal-organic coordination complex (MOC) with transition or lanthanide metal ions, especially Fe(Ⅲ), and the MOC nanofilms form rapidly upon mixing of Fe(Ⅲ) and TA solutions. The material-independent universal Fe(Ⅲ)-TA nanocoating has been demonstrated with a multitude of substrates, including planar and particulate ones. Formed Fe(Ⅲ)-TA nanofilms is multifunctional in various sectors, making it possible to control surface properties including anti-fouling, anti-moisture, and antimicrobial coating. Although the Fe(Ⅲ)-TA nanocoating ensures film uniformity for nano/micrometer-sized objects, it is a formidable task to coat bulk or water-floating substrates, because the coating method has been limited to diffusion-driven, supramolecular complex formation in solution. Considering these limitations of immersive nanocoating, we envisioned that spray nanocoating would be a practical and powerful alternative | - |
dc.description.abstract | it has been used to form nanofilms on a variety of substrates, having two-dimensionally textured morphologies or three-dimensionally arbitrary shapes, exemplified by spray coating of layer-by-layer multilayers and polydopamine. In addition, spray coating is much more time-efficient compared with the immersive nanocoating, because spraying and washing steps generally take less than 10 seconds, and the cross-contamination of suspensions is hardly found. Herein, we demonstrate that stable Fe(Ⅲ)-TA-MOC nanofilms by spraying of Fe(Ⅲ) and TA solutions, and apply the developed coating strategy to bulk commodity goods, including fruits such as mandarin orange using antimicrobial property. In addition, as this coating is material-independent and makes hydrophilic surface, we showed that the superhydrophobic surface, which is nanoporous anodic aluminum oxide (AAO), converts into the hydrophilic surface in a short time. We showed also just tannic acid is performed even by plasma treatment. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Tannic acid▼aMetal-organic coordination complex (MOC)▼aspray nanocoating▼asuperhydrophobic surface▼aanodic aluminum oxide (AAO)▼aWettability conversion | - |
dc.subject | 탄닌산▼a금속-유기 복합체▼a스프레이 나노코팅▼a초소수성 표면▼a양극 산화 알루미늄 | - |
dc.subject | 가용성 변환 | - |
dc.title | Formation and characterization of tannic acid-based functional nanofilms | - |
dc.title.alternative | 탄닌산 기반 기능성 나노박막의 형성과 특성에 관한 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :화학과, | - |
dc.contributor.alternativeauthor | 최소희 | - |
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