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Rabnawaz M, Liu G, Hu H. Fluorine-Free Anti-Smudge Polyurethane Coatings. Angew Chem Int Ed Engl 2015; 54:12722-7. [PMID: 26314563 DOI: 10.1002/anie.201504892] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 07/30/2015] [Indexed: 11/07/2022]
Abstract
Conventionally, low-surface-tension fluorinated reagents are incorporated into anti-smudge (oil- and water-repellent) coatings for oil repellency. However, fluorinated compounds are expensive and an environmental concern because of their high stability and bioaccumulation. These factors limit their widespread application. We report herein the development of fluorine-free anti-smudge polyurethane coatings that are clear at thicknesses up to tens of micrometers and are able to sustain extensive surface damage. We demonstrate that these coatings can be applied readily onto a diverse range of substrates.
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Affiliation(s)
- Muhammad Rabnawaz
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, K7L 3N6 (Canada)
| | - Guojun Liu
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, K7L 3N6 (Canada).
| | - Heng Hu
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, K7L 3N6 (Canada)
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53
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Hensel R, Neinhuis C, Werner C. The springtail cuticle as a blueprint for omniphobic surfaces. Chem Soc Rev 2015; 45:323-41. [PMID: 26239626 DOI: 10.1039/c5cs00438a] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Omniphobic surfaces found in nature have great potential for enabling novel and emerging products and technologies to facilitate the daily life of human societies. One example is the water and even oil-repellent cuticle of springtails (Collembola). The wingless arthropods evolved a highly textured, hierarchically arranged surface pattern that affords mechanical robustness and wetting resistance even at elevated hydrostatic pressures. Springtail cuticle-derived surfaces therefore promise to overcome limitations of lotus-inspired surfaces (low durability, insufficient repellence of low surface tension liquids). In this review, we report on the liquid-repellent natural surfaces of arthropods living in aqueous or temporarily flooded habitats including water-walking insects or water spiders. In particular, we focus on springtails presenting an overview on the cuticular morphology and chemistry and their biological relevance. Based on the obtained liquid repellence of a variety of liquids with remarkable efficiency, the review provides general design criteria for robust omniphobic surfaces. In particular, the resistance against complete wetting and the mechanical stability strongly both depend on the topographical features of the nano- and micropatterned surface. The current understanding of the underlying principles and approaches to their technological implementation are summarized and discussed.
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Affiliation(s)
- René Hensel
- INM - Leibniz Institute for New Materials, 66123 Saarbrücken, Germany
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54
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Huang W, Besar K, Zhang Y, Yang S, Wiedman G, Liu Y, Guo W, Song J, Hemker K, Hristova K, Kymissis IJ, Katz HE. A High-Capacitance Salt-Free Dielectric for Self-Healable, Printable, and Flexible Organic Field Effect Transistors and Chemical Sensor. ADVANCED FUNCTIONAL MATERIALS 2015; 25:3745-3755. [PMID: 29238288 PMCID: PMC5724795 DOI: 10.1002/adfm.201404228] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Printable and flexible electronics attract sustained attention for their low cost, easy scale up, and potential application in wearable and implantable sensors. However, they are susceptible to scratching, rupture, or other damage from bending or stretching due to their "soft" nature compared to their rigid counterparts (Si-based electronics), leading to loss of functionality. Self-healing capability is highly desirable for these "soft" electronic devices. Here, a versatile self-healing polymer blend dielectric is developed with no added salts and it is integrated into organic field transistors (OFETs) as a gate insulator material. This polymer blend exhibits an unusually high thin film capacitance (1400 nF cm -2 at 120 nm thickness and 20-100 Hz). Furthermore, it shows pronounced electrical and mechanical self-healing behavior, can serve as the gate dielectric for organic semiconductors, and can even induce healing of the conductivity of a layer coated above it together with the process of healing itself. Based on these attractive properties, we developed a self-healable, low-voltage operable, printed, and flexible OFET for the first time, showing promise for vapor sensing as well as conventional OFET applications.
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Affiliation(s)
- Weiguo Huang
- Department of Materials Science and Engineering The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Kalpana Besar
- Department of Materials Science and Engineering The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Yong Zhang
- Department of Mechanical Engineering, The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Shyuan Yang
- Department of Electrical Engineering, Columbia University SEAS New York, NY 10027, USA
| | - Gregory Wiedman
- Department of Materials Science and Engineering The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Yu Liu
- Department of Materials Science and Engineering The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Wenmin Guo
- Department of Materials Science and Engineering The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Jian Song
- Department of Materials Science and Engineering The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA, Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Kevin Hemker
- Department of Materials Science and Engineering The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA, of Mechanical Engineering, The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Kalina Hristova
- Department of Materials Science and Engineering The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Ionnis J Kymissis
- Department of Electrical Engineering, Columbia University SEAS New York, NY 10027, USA
| | - Howard E Katz
- Department of Materials Science and Engineering The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA, of Chemistry, The Johns Hopkins University 3400 North Charles Street, Baltimore, MD 21218, USA
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55
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Rabnawaz M, Liu G. Graft-Copolymer-Based Approach to Clear, Durable, and Anti-Smudge Polyurethane Coatings. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501360] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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56
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Rabnawaz M, Liu G. Graft-Copolymer-Based Approach to Clear, Durable, and Anti-Smudge Polyurethane Coatings. Angew Chem Int Ed Engl 2015; 54:6516-20. [DOI: 10.1002/anie.201501360] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 03/07/2015] [Indexed: 11/09/2022]
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57
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Xu L, Chen S, Lu X, Lu Q. Electrochemically Tunable Cell Adsorption on a Transparent and Adhesion-Switchable Superhydrophobic Polythiophene Film. Macromol Rapid Commun 2015; 36:1205-10. [DOI: 10.1002/marc.201500102] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 03/11/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Lianyi Xu
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composite; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 China
| | - Shuangshuang Chen
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composite; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 China
| | - Xuemin Lu
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composite; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 China
| | - Qinghua Lu
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composite; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 China
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58
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Fan F, Szpunar J. The self-healing mechanism of an industrial acrylic elastomer. J Appl Polym Sci 2015. [DOI: 10.1002/app.42135] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fan Fan
- Department of Mechanical Engineering; College of Engineering, University of Saskatchewan; Saskatoon Saskatchewan S7N 5A9 Canada
| | - Jerzy Szpunar
- Department of Mechanical Engineering; College of Engineering, University of Saskatchewan; Saskatoon Saskatchewan S7N 5A9 Canada
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59
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Gao L, Xiao S, Gan W, Zhan X, Li J. Durable superamphiphobic wood surfaces from Cu2O film modified with fluorinated alkyl silane. RSC Adv 2015. [DOI: 10.1039/c5ra19433d] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple hydrothermal process with further hydrophobization was developed for fabricating durable superamphiphobic films of cuprous oxide (Cu2O) microspheres on a wood substrate.
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Affiliation(s)
- Likun Gao
- Material Science and Engineering College
- Northeast Forestry University
- Harbin 150040
- P. R. China
| | - Shaoliang Xiao
- Material Science and Engineering College
- Northeast Forestry University
- Harbin 150040
- P. R. China
| | - Wentao Gan
- Material Science and Engineering College
- Northeast Forestry University
- Harbin 150040
- P. R. China
| | - Xianxu Zhan
- Dehua TB New Decoration Material Co., Ltd
- Huzhou
- P. R. China
| | - Jian Li
- Material Science and Engineering College
- Northeast Forestry University
- Harbin 150040
- P. R. China
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60
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Chen K, Zhou S, Wu L. Facile fabrication of self-repairing superhydrophobic coatings. Chem Commun (Camb) 2014; 50:11891-4. [DOI: 10.1039/c3cc49251f] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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61
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Xu L, Geng Z, He J, Zhou G. Mechanically robust, thermally stable, broadband antireflective, and superhydrophobic thin films on glass substrates. ACS APPLIED MATERIALS & INTERFACES 2014; 6:9029-9035. [PMID: 24848810 DOI: 10.1021/am5016777] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, we developed a simple and versatile strategy to fabricate hierarchically structured lotus-leaf-like superhydrophobic thin films. The thin films are broadband antireflective, and the average transmittance of coated glass substrates reached greater than 95% in the wavelength range of 530-1340 nm, in contrast to 92.0% for bare glass substrate. The thin film surface shows a static water contact angle of 162° and a sliding angle less than 4°. Moreover, the thin film is thermally stable up to 300 °C, and shows remarkable stability against strong acid, strong alkali, water drop impact, and sand impact abrasion, while retaining its superhydrophobicity. Further, the thin film can pass the 3H pencil hardness test. The current approach may open a new avenue to a variety of practical applications, including windshields, eyeglasses, windows of high rise buildings and solar cells, etc.
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Affiliation(s)
- Ligang Xu
- Functional Nanomaterials Laboratory and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Zhongguancundonglu 29, Haidianqu, Beijing 100190, China
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62
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Zhu M, Rong MZ, Zhang MQ. Self-healing polymeric materials towards non-structural recovery of functional properties. POLYM INT 2014. [DOI: 10.1002/pi.4723] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Min Zhu
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GD HPPC Laboratory, School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou 510275 China
| | - Min Zhi Rong
- Materials Science Institute, School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou 510275 China
| | - Ming Qiu Zhang
- Materials Science Institute, School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou 510275 China
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63
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Liu K, Kang Y, Wang Z, Zhang X. 25th anniversary article: reversible and adaptive functional supramolecular materials: "noncovalent interaction" matters. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:5530-5548. [PMID: 24038309 DOI: 10.1002/adma201302015] [Citation(s) in RCA: 212] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Revised: 06/26/2013] [Indexed: 06/02/2023]
Abstract
Supramolecular materials held together by noncovalent interactions, such as hydrogen bonding, host-guest interactions, and electrostatic interactions, have great potential in material science. The unique reversibility and adaptivity of noncovalent intreractions have brought about fascinating new functions that are not available by their covalent counterparts and have greatly enriched the realm of functional materials. This review article aims to highlight the very recent and important progresses in the area of functional supramoleuclar materials, focusing on adaptive mechanical materials, smart sensors with enhanced selectivity, soft luminescent and electronic nanomaterials, and biomimetic and biomedical materials with tailored structures and functions. We cannot write a complete account of all the interesting work in this area in one article, but we hope that it can in a way reflect the current situation and future trends in this prosperously developing area of functional supramolecular materials.
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Affiliation(s)
- Kai Liu
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, PR China
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64
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Li B, Zhang J, Wu L, Wang A. Durable Superhydrophobic Surfaces Prepared by Spray Coating of Polymerized Organosilane/Attapulgite Nanocomposites. Chempluschem 2013; 78:1503-1509. [DOI: 10.1002/cplu.201300222] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 08/06/2013] [Indexed: 11/07/2022]
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65
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66
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Zhang X, Wang L, Levänen E. Superhydrophobic surfaces for the reduction of bacterial adhesion. RSC Adv 2013. [DOI: 10.1039/c3ra40497h] [Citation(s) in RCA: 420] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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67
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Tee BCK, Wang C, Allen R, Bao Z. An electrically and mechanically self-healing composite with pressure- and flexion-sensitive properties for electronic skin applications. NATURE NANOTECHNOLOGY 2012; 7:825-32. [PMID: 23142944 DOI: 10.1038/nnano.2012.192] [Citation(s) in RCA: 647] [Impact Index Per Article: 53.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Accepted: 10/01/2012] [Indexed: 05/19/2023]
Abstract
Pressure sensitivity and mechanical self-healing are two vital functions of the human skin. A flexible and electrically conducting material that can sense mechanical forces and yet be able to self-heal repeatably can be of use in emerging fields such as soft robotics and biomimetic prostheses, but combining all these properties together remains a challenging task. Here, we describe a composite material composed of a supramolecular organic polymer with embedded nickel nanostructured microparticles, which shows mechanical and electrical self-healing properties at ambient conditions. We also show that our material is pressure- and flexion-sensitive, and therefore suitable for electronic skin applications. The electrical conductivity can be tuned by varying the amount of nickel particles and can reach values as high as 40 S cm(-1). On rupture, the initial conductivity is repeatably restored with ∼90% efficiency after 15 s healing time, and the mechanical properties are completely restored after ∼10 min. The composite resistance varies inversely with applied flexion and tactile forces. These results demonstrate that natural skin's repeatable self-healing capability can be mimicked in conductive and piezoresistive materials, thus potentially expanding the scope of applications of current electronic skin systems.
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Affiliation(s)
- Benjamin C-K Tee
- Department of Electrical Engineering, Stanford University, David Packard Building, Stanford, CA 94305, USA
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68
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Wang H, Xue Y, Ding J, Feng L, Wang X, Lin T. Durable, Self-Healing Superhydrophobic and Superoleophobic Surfaces from Fluorinated-Decyl Polyhedral Oligomeric Silsesquioxane and Hydrolyzed Fluorinated Alkyl Silane. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105069] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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69
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Wang H, Xue Y, Ding J, Feng L, Wang X, Lin T. Durable, Self-Healing Superhydrophobic and Superoleophobic Surfaces from Fluorinated-Decyl Polyhedral Oligomeric Silsesquioxane and Hydrolyzed Fluorinated Alkyl Silane. Angew Chem Int Ed Engl 2011; 50:11433-6. [DOI: 10.1002/anie.201105069] [Citation(s) in RCA: 421] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Indexed: 11/07/2022]
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70
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Wang X, Liu F, Zheng X, Sun J. Water-Enabled Self-Healing of Polyelectrolyte Multilayer Coatings. Angew Chem Int Ed Engl 2011; 50:11378-81. [DOI: 10.1002/anie.201105822] [Citation(s) in RCA: 256] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Indexed: 11/11/2022]
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71
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Wang X, Liu F, Zheng X, Sun J. Water-Enabled Self-Healing of Polyelectrolyte Multilayer Coatings. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105822] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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72
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Zhang J, Seeger S. Superoleophobe Silicon-Beschichtungen mit ultrakleinen Abrollwinkeln. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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73
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Zhang J, Seeger S. Superoleophobic Coatings with Ultralow Sliding Angles Based on Silicone Nanofilaments. Angew Chem Int Ed Engl 2011; 50:6652-6. [PMID: 21648031 DOI: 10.1002/anie.201101008] [Citation(s) in RCA: 206] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Indexed: 11/06/2022]
Affiliation(s)
- Junping Zhang
- Physikalisch-Chemisches Institut, Universität Zürich Irchel, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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74
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Ma Y, Zhang Y, Wu B, Sun W, Li Z, Sun J. Polyelectrolyte Multilayer Films for Building Energetic Walking Devices. Angew Chem Int Ed Engl 2011; 50:6254-7. [DOI: 10.1002/anie.201101054] [Citation(s) in RCA: 146] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2011] [Indexed: 11/08/2022]
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75
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Ma Y, Zhang Y, Wu B, Sun W, Li Z, Sun J. Polyelectrolyte Multilayer Films for Building Energetic Walking Devices. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101054] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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