• Title/Summary/Keyword: Layer-by-Layer assembly

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Layer-by-layer self-assembly colorant multi-layer preparation using natural colorant Berberine and anionic polyelectrolyte (베르베린 천연색소화합물과 음이온고분자전해질을 이용한 layer-by-layer self-assembly 색소다층박막 제조)

  • Son Young-A;Park Young-Min;Lee Seung-Goo;Ravikumar K.
    • Textile Coloration and Finishing
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    • v.18 no.1
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    • pp.28-32
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    • 2006

  • A multi-layer of the dye, natural colorant Berberine, was successfully developed by the self-assembly deposition from water-soluble cationic dye(Berberine chloride) and anionic polyelectrolyte PSS(Polysodium 4-styrenesulfonate) in aqueous solution via electrostatic attraction. The corresponding results on multi-layer were characterized by UV-Vis absorbance measurements. The growth of multi-layer formed by the sequential interaction was also determined. The findings measured by UV-Vis spectrophotometer showed that the bilayer deposition characteristic was linear and highly reproducible from layer to layer.

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Recent Progress in Layer-by-layer Assembly of Nanomaterials for Electrochemical Energy Storage Applications

  • Kim, Sung Yeol
    • Journal of the Korean Electrochemical Society
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    • v.17 no.3
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    • pp.139-148
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    • 2014

  • Electrochemical energy-storage devices such as batteries and supercapacitors are important components in emerging portable electronic device, electric vehicle, and clean energy storage and supply technologies. This review describes recent progress in the development of nanostructured electrodes, the main component of the electrochemical energy-storage device, prepared by layer-by-layer (LbL) electrostatic assembly. Major advantages associated with, and challenges to, the fabrication of LbL electrodes, as well as the future outlook for expanding the application of LbL techniques, are discussed.

  • https://doi.org/10.5229/JKES.2014.17.3.139 인용 PDF KSCI

Fabrication of Ultrathin Multilayer Films Using Layer-by-Layer Self-Assembly Method and Their Application (Layer-by-Layer 자기조립현상을 이용한 다층초박막의 제조와 응용)

  • 차국헌;조진한
    • Polymer Science and Technology
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    • v.15 no.3
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    • pp.260-273
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    • 2004

  • Layer-by-layer 자기조립방법 (self-assembly method) 이라고 불리는 담지자기조립방법 (dip self-assembly method)을 이용한 다층초박막은 다양한 전기적, 자기적 성질을 갖는 물질뿐만 아니라 DNA 또는 효소 (enzyme)같은 바이오 물질들을 기판의 크기나 형태에 관계없이 각각의 층에 나노미터 두께로 삽입시킬 수 있음에 따라서 초박막안에 우리가 원하는 특정 성질을 부여할 수 있다. (중략)

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Technology Trend of surface Wettability Control Using Layer-by-Layer Assembly Technique (다층박막법을 이용한 표면 젖음성 제어 기술 동향)

  • Sung, Chunghyun
    • Journal of Adhesion and Interface
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    • v.18 no.4
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    • pp.171-178
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    • 2017

  • Recently, layer-by-layer (LbL) assembly has emerged as a promising fabrication technique in controlling surface wetting properties. LbL assembly technique is eco-friendly versatile technique to control the hierarchical structure and surface properties in nano- and micro-scale by employing a variety of materials (e.g., polymers, surfactants, nanoparticles, etc.). This article reviews recent progress in controlling the surface wetting using LbL technique. In particular, technical trends and research findings on fabrication and the applications of superhydrophobic, superhydrophilc, and superoleophobic/superhydrophilic LbL surfaces are extensively explained. Additionally, basic principles and fabrication methods in emerging areas such as omniphobic, self-healing, intelligent and responsive LbL surfaces are discussed.

  • https://doi.org/10.17702/jai.2017.18.4.171 인용 PDF KSCI

Prussian blue immobilization on various filter materials through Layer-by-Layer Assembly for effective cesium adsorption

  • Wi, Hyobin;Kim, Hyowon;Kang, Sung-Won;Hwang, Yuhoon
    • Membrane and Water Treatment
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    • v.10 no.3
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    • pp.245-250
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    • 2019

  • Prussian blue (PB) is well known for its excellent $Cs^+$ ions adsorption capacity. Due to the high dispersibility of PB in aqueous phase, composite materials imbedding PB in supporting materials have been introduced as a solution. However, building PB particles inside porous supporting materials is still difficult, as PB particles are not fully formed and elute out to water. In this study, we suggest layer-by-layer (LBL) assembly to provide better immobilization of PB on supporting materials of poly vinyl alcohol sponge (PVA) and cellulose filter (CF). Three different PB attachment methods, ex-situ/in-situ/LBL assembly, were evaluated using PB leaching test as well as $Cs^+$ adsorption test. Changes of surface functionality and morphology during PB composite preparation protocols were monitored through Fourier transform infrared spectroscopy and scanning electron microscopy. The results indicate that LBL assembly led to better PB attachment on supporting materials, bringing less eluting PB particles in aqueous phase compared to other synthesis methodologies, such as ex-situ and in-situ synthesis. By enhancing the stability of the adsorbent, adsorption capacity of PVA-PB with LBL improved nine times and that of CF-PB improved over 20 times. Therefore, the results suggest that LBL assembly offers a better orientation for growing PB particles on porous supporting materials.

  • https://doi.org/10.12989/mwt.2019.10.3.245 인용 KSCI