DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Nam, Yoon-Sung | - |
dc.contributor.advisor | 남윤성 | - |
dc.contributor.author | Son, Ho-Yeon | - |
dc.contributor.author | 손호연 | - |
dc.date.accessioned | 2013-09-12T04:45:15Z | - |
dc.date.available | 2013-09-12T04:45:15Z | - |
dc.date.issued | 2013 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=515098&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/181981 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 신소재공학과, 2013.2, [ vii, 62 p. ] | - |
dc.description.abstract | Functional inorganic nanostructures have been much attractive for various applications to biosen-sors, catalytic systems, electronic and optical devices. Various porous polymer nanostructures serve as a tem-plate for the formation of inorganic nanostructures. Electrospinning is widely used to produce highly porous nanofiber structures with large surface area-to-volume ratio. Several techniques has been employed to homo-geneously generate inorganic nanostructure on electrospun nanofibers, however, there has a need to a new approach for surface modification of electrospun nanofibers for homogeneously and spontaneously generating inorganic nanostructures under ambient conditions. Recently there has been increasing attention on a mussel-inspired surface modification because of their capability for the coatings of various organic and inorganic materials. It is known that the co-existence of the catechol moiety of 3,4-dihydroxy-L-phenylalanine (DOPA) and the amine group of lysine is crucial for strong mussel adhesion in aqueous environment. Catechol moiety has enough reducing capability for generating metal nanoparticles with a strong adhesive property. Here we introduce a mussel-inspired surface modification for inorganic coatings of electrospun pol-ymer nanofibers. Firstly, catechol-grafted polymer nanofibers are used as a functional template for the for-mation of noble metal nanostructures. The synthesis of metal nanostructures is driven by the oxidation of the catechol moiety having an enough reducing potential for metal ions. 3,4-dihydroxyhydrocinnamic acid is chemically grafted to poly(vinylalcohol) (PVA) using ethylenediamine as a linker, producing catechol-grafted PVA (PVA-g-ct). Noble metal ions (e.g., Ag+, Au3+ and Pt4+) are spontaneously reduced to metal nanoparticles on electrospun PVA-g-ct nanofibers. The highly open porous, three-dimensional metal nanostructures are generated when the catechol-grafted nanofibers are simply immersed in metal ion precur... | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | electrospinning | - |
dc.subject | mussel-inspired surface modification | - |
dc.subject | polydopamine | - |
dc.subject | electrospun nanofibers | - |
dc.subject | 전기방사 | - |
dc.subject | 홍합에서 모방한 표면 개질 | - |
dc.subject | 폴리도파민 | - |
dc.subject | 나노섬유 | - |
dc.subject | 금속 나노 구조체 | - |
dc.subject | metal nanostructures | - |
dc.title | Bio-inspired synthesis of functional inorganic nanostructures on electrospun nanofibers | - |
dc.title.alternative | 전기방사로 제조된 나노섬유를 이용한 생체 모방형 무기 나노 구조체의 합성 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 515098/325007 | - |
dc.description.department | 한국과학기술원 : 신소재공학과, | - |
dc.identifier.uid | 020114394 | - |
dc.contributor.localauthor | Nam, Yoon-Sung | - |
dc.contributor.localauthor | 남윤성 | - |
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