Design of Patterned Surfaces with Selective Wetting Using Nanoimprint Lithography

Bessonov, A. A.; Kim, Jeong-Gil; Seo, Jung-Woo; Lee, Jongwoo; Lee, Sung‐Hee

doi:10.1002/macp.201000483

Cited by 16 publications

(3 citation statements)

References 24 publications

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“…After removal of the template, the polyaniline nanowires remained attached to the Ti/Si substrate, which enabled the fabrication of superhydrophobic and electrically conductive surfaces [ 163 ]. Bessonov et al presented the fabrication of acrylate-based surfaces with controlled wettability that included alternative superhydrophobic and hydrophilic regions [ 164 ]. Hydrophobic and hydrophilic regions were achieved by UV curing the resin employing a segmented master that contained pieces of AAO templates.…”

Section: Properties and Applications Of Synthesized Polymers With Aao...mentioning

confidence: 99%

Polymerization within Nanoporous Anodized Alumina Oxide Templates (AAO): A Critical Survey

Mijangos

Martı́n

2023

Polymers

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In the last few years, the polymerization of monomers within the nanocavities of porous materials has been thoroughly studied and developed, allowing for the synthesis of polymers with tailored morphologies, chemical architectures and functionalities. This is thus a subject of paramount scientific and technological relevance, which, however, has not previously been analyzed from a general perspective. The present overview reports the state of the art on polymerization reactions in spatial confinement within porous materials, focusing on the use of anodized aluminum oxide (AAO) templates. It includes the description of the AAO templates used as nanoreactors. The polymerization reactions are categorized based on the polymerization mechanism. Amongst others, this includes electrochemical polymerization, free radical polymerization, step polymerization and atom transfer radical polymerization (ATRP). For each polymerization mechanism, a further subdivision is made based on the nature of the monomer used. Other aspects of “in situ” polymerization reactions in restricted AAO geometries include: conversion monitoring, kinetic studies, modeling and polymer characterization. In addition to the description of the polymerization process itself, the use of polymer materials derived from polymerization in AAO templates in nanotechnology applications, is also highlighted. Finally, the review is concluded with a general discussion outlining the challenges that remain in the field.

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Section: Properties and Applications Of Synthesized Polymers With Aao...mentioning

confidence: 99%

Polymerization within Nanoporous Anodized Alumina Oxide Templates (AAO): A Critical Survey

Mijangos

Martı́n

2023

Polymers

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“…Compared to the traditional patterning techniques of physical/chemical vapor deposition or sputtering, solution-based deposition approaches are becoming popular for the patterning films creation due to the facile synthesis parameters and conditions, less energy, and time requirement [180,181]. Although the common photolithographic patterning technique is excellent for preparing submicron-sized template in solution, it is a complex multistep process that has to remove great part of the formed film and the supplemental photoresist [182]. Super-wetting/antiwetting pattern with an extreme wettability contrast by photolithography, particularly the rewritable pattern by using high photocatalytic activity of anatase TiO 2 [140][141][142][143][144], is a potentially powerful and economical approach to precisely construct various multifunctional nanostructures in aqueous solution [145][146][147][148][149].…”

Section: Template For Micropatterning/printingmentioning

confidence: 99%

TiO2 -Based Surfaces with Special Wettability – From Nature to Biomimetic Application

Huang¹,

Lai²

2015

Wetting and Wettability

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Super-wetting/antiwetting surfaces with extremely high contrast of surface energy and liquid adhesion have attracted a lot of interest in both fundamental research and industry. Various types of special wetting surfaces can be constructed by adjusting the topographical structure and chemical composition. In this chapter, recent advance of the super-wetting/antiwetting surfaces with special solid/liquid adhesion has been reviewed, with a focus on the biomimetic fabrication and applications of TiO -based surfaces. Special super-wettability examples include lotus-leaf-inspired surfaces with low adhesion, rose-petal-inspired surfaces with high adhesion, spider silk bioinspired surfaces with directional adhesion, fish-scale-inspired underwater superoleophobic surface, and artificial surfaces with controllable or stimuli-responsive liquid adhesion. In addition, we will review some potential applications related to artificial antiwetting surface with controllable adhesion, e.g., self-cleaning, antifogging/antiicing, micro-droplet manipulation, fog/water collection, water/oil separation, antibioadhesion, micro-template for patterning, and friction reduction. Finally, the difficulty and prospects of this renascent and rapidly developing field are also briefly proposed and discussed.Keywords: Wettability, Super-wetting/antiwetting, "dhesion, TiO -based surface, "pplication © 2015 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. . IntroductionDuring the past decades, super-antiwetting surfaces, with a water contact angle WC" greater than o , have attracted considerable interest due to their importance in both fundamental research and practical application [ -]. Two types of extremely superantiwetting cases exist in nature, which are the sliding super-antiwetting lotus leaves or water strider with ultralow water sliding resistance and the sticky super-antiwetting petal effect or gecko feet with extremely high liquid adhesion. "iomimetic studies demonstrate that the synergistic effect of topographical structures and chemical compositions plays a vital role on the special functional surfaces with various adhesions. These findings have inspired the creation of super-antiwetting functional surfaces with self-cleaning, anti-icing/ antifogging, water/oil separation, micro-droplet manipulation, anti-bioadhesion, microtemplate, and low-friction transportation [ -].Figure . Some natural cases in lotus leaf, mosquito eye, rose petal, spider silks, butterfly wings, gecko feet, desert beetle, and water strider and their potential applications of biomimetic super-antiwetting surfaces, such as self-cleaning, anti-icing/antifogging, micro-droplet manipulation, fog/water collection, water/oil separation, anti-bioadhesion, microtemplate for patterning, and friction reductionIn the following two s...

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“…The wettability of solid surfaces has gained tremendous importance over the past decade in both fundamental science and industrial interests. [1][2][3][4] Conventionally, for a superhydrophobic surface, the effective contact angle (CA) of the liquid droplet with the surface exceeds 150° and the contact angle hysteresis (defi ned as the difference between the advancing and the receding angles) is smaller than 10°. In nature, many biological surfaces such as lotus leaves, [ 5 ] rice leaves, [ 6 ] water-strider legs, [ 7 ] and cicada wings [ 8 ] possess unusual superhydrophobic features.…”

Section: Introductionmentioning

confidence: 99%

Polymer Self‐Etching for Superhydrophobicity through a Green Hot‐Pressing‐Exfoliation Process: Low and High Adhesion

Xiong

Zheng

Xia

2016

Macro Materials & Eng

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A green polymer self‐etching strategy for fabricating superhydrophobic surfaces exhibiting low and high adhesion is proposed by using hot‐pressing and exfoliation on a pair of low density polyethylene (LDPE) films. It is demonstrated that the hot‐pressing temperature has significant influence on the surface morphology of LDPE. Effective hot‐pressing temperature for low‐adhesive superhydrophobicity ranges from 109 to 161 °C. Bird's‐nest like micro‐/nanostructures are observed in the unzipped LDPE surfaces compressed at 109 °C, which shows excellent water repellency. LDPE surface compressed at 108 °C demonstrates superhydrophobicity with high adhesion, i.e., a water droplet cannot roll off even when the surface is turned upside down. Furthermore, superhydrophobic vessels are processed and applied to transport water and microdroplets of water losslessly.

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Design of Patterned Surfaces with Selective Wetting Using Nanoimprint Lithography

Cited by 16 publications

References 24 publications

Polymerization within Nanoporous Anodized Alumina Oxide Templates (AAO): A Critical Survey

Polymerization within Nanoporous Anodized Alumina Oxide Templates (AAO): A Critical Survey

TiO2 -Based Surfaces with Special Wettability – From Nature to Biomimetic Application

Polymer Self‐Etching for Superhydrophobicity through a Green Hot‐Pressing‐Exfoliation Process: Low and High Adhesion

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