Article
Nanoscience & Nanotechnology
Esfandiar Pakdel, Julie Sharp, Sima Kashi, Wenli Bai, Mazeyar Parvinzadeh Gashti, Xungai Wang
Summary: Cotton fabrics with superhydrophobic, antibacterial, UV protection, and photothermal properties were developed using Ag/PDMS coatings. The relationship between the fabrics' superhydrophobicity and antibacterial activity against E. coli bacteria was studied, along with the UV protection performance of Ag/PDMS coatings. The content of Ag NPs and PDMS played critical roles in determining the water contact angle on modified fabrics, and increasing the content of Ag NPs boosted the UV protection level of fabrics.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Kai Zhou, Xiao Yan, Seung J. Oh, Gabriela Padilla-Rivera, Hyunjung A. Kim, Donald M. Cropek, Nenad Miljkovic, Lili Cai
Summary: Passive daytime radiative cooling (PDRC) has the potential to reduce energy demand and mitigate global warming. However, practical applications are limited by surface contamination from dust and bacteria buildup. In this study, a hierarchically patterned nanoporous composite (HPNC) is developed to integrate PDRC materials with self-cleaning and antibacterial functions. The HPNC design enables simultaneous optimization of different characteristic length scales and achieves significant temperature reduction for outdoor personal and building cooling. Additionally, the HPNC design includes a microscale pillar array pattern and surface coating of photocatalytic agents, providing self-cleaning and antisoiling effects to mitigate surface contamination. This scalable and multifunctional design offers a promising solution for practical PDRC applications with minimal maintenance needs.
Article
Chemistry, Applied
Fan Wang, Ranran Chang, Rongrong Ma, Yaoqi Tian
Summary: Nano-starch and polydimethylsiloxane composite coatings exhibit superhydrophobic and self-cleaning properties with excellent mechanical and chemical robustness, suitable for oil-water separation and oily wastewater treatment applications.
CARBOHYDRATE POLYMERS
(2021)
Article
Engineering, Environmental
Xiang Li, Zhimin Gao, Bing Li, Xuemin Zhang, Yang Li, Junqi Sun
Summary: This study reports the fabrication of self-healing superhydrophobic H-2 sensors, with good sensing performance and stability, suitable for working in highly humid environments, and with self-cleaning and waterproof functions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Paper & Wood
Esfandiar Pakdel, Hai Zhao, Jinfeng Wang, Bin Tang, Russell J. Varley, Xungai Wang
Summary: The research successfully developed self-cleaning cotton fabric with dual functionalities of superhydrophobicity and photocatalytic activity, using microhierarchial TiO2-based particles and fluorine-free coatings to achieve simultaneous superhydrophobicity and photocatalytic self-cleaning under simulated sunlight.
Article
Biochemistry & Molecular Biology
Thirumalaisamy Suryaprabha, Heebo Ha, Byungil Hwang, Mathur Gopalakrishnan Sethuraman
Summary: In this study, a simple and environmentally friendly approach was used to fabricate superhydrophobic cotton fabric. The cotton fabric was coated with chitosan-based composite coatings, which resulted in excellent superhydrophobicity with a water contact angle of 154.4 degrees. The coated cotton fabric also exhibited excellent antibacterial activity against both Gram positive and negative bacteria.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Multidisciplinary
Michele Ferrari, Paolo Piccardo, Justine Vernet, Francesca Cirisano
Summary: The study shows that the use of superhydrophobic coatings can improve the self-cleaning effect of optical devices, increase transparency, and make energy conversion more efficient. A mixed organic-inorganic superhydrophobic coating prepared by spray method can maintain high transmittance under simulated pollution conditions and restore its initial properties.
Article
Chemistry, Physical
Ana Isabel Mendoza, Pierre Larroche, Fritjof Nilsson, Mikael Hedenqvist, Emma Stromberg, Henrik Hillborg, Rosana Moriana
Summary: Optimized superhydrophobic and self-cleaning nanocomposite surfaces were achieved by spraying surface modified ZnO nanoparticles onto PDMS and using hydrophobic modifiers. The research correlated surface parameters and particle surface distribution as well as agglomeration using image analysis. The study provided insights into the design and modeling of superhydrophobic self-cleaning PDMS/ZnO nanocomposite surfaces.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Keda Jiang, Feiran Li, Xuezeng Zhao, Yunlu Pan
Summary: In this study, a simple and economical method was proposed to prepare a substrate-independent self-cleaning coating with remarkable oil repellency. The coating showed the ability to detach adhered oil in water, as well as stability in corrosive aqueous environments and resistance to water condensation. The coated fabric also exhibited permselectivity to water and oil, making it useful for separating oil/water mixtures.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Yuting Zhang, Tingping Lei, Shuangmin Li, Xiaomei Cai, Zhiyuan Hu, Weibin Wu, Tianliang Lin
Summary: The interest in candle soot-based superhydrophobic coatings has been rapidly growing. In this study, a simple and low-cost method for fabricating such coatings through electrospraying is developed. The superhydrophobicity of the coating depends on the loading amount of candle soot and the resulting roughness. It is found that the synergistic effect of the cocktail solution and electrospray process is responsible for the superhydrophobicity induced in the coating. The versatile applications of candle soot-based superhydrophobic coatings including self-cleaning, anti-corrosion, and oil/water separation are demonstrated.
Article
Engineering, Chemical
Yingchun Sun, Ru Liu, Jianfeng Xu, Yuhui Sun, Jingya Gong, Ling Long
Summary: A durable and environmentally-friendly superhydrophobic coating for reducing liquid-food residue was developed using stearic acid modified organic montmorillonite and poly(dimethylsiloxane) (PDMS). The coating exhibited low surface energy and roughness due to the hydrophobic properties of stearic acid modified organic montmorillonite. PDMS contributed to both low surface energy and bonding properties in the coating. The prepared coating demonstrated excellent physical and chemical stability, self-cleaning ability, and potential application in reducing liquid-food residue.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Chemistry, Physical
Ping Wang, Xinlong Yan, Jingya Zeng, Ciyong Luo, Chaolong Wang
Summary: An anti-reflective and superhydrophobic coating with excellent durable and self-cleaning properties was proposed to improve the power generation efficiency and reduce maintenance workload of photovoltaic modules. The coating has multiple structures to enhance durability and mechanical stability, and its properties can be controlled by adjusting the preparation conditions of silica sols.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Applied
Yizhou Shen, Zeyu Cai, Jie Tao, Kunlong Li, Haifeng Chen, Zhengwei Wu, Zhenfeng Jia, Huaguan Li
Summary: This study synthesized superhydrophobic PU-based coatings with excellent mechanical and chemical durability, showing outstanding water repellency, abrasion resistance, and resistance to chemical erosion and UV damage. The rational regulation of nanoparticles in the composite coatings contributed to these excellent performances.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Green & Sustainable Science & Technology
Wei Tong, Zhen Wu, Dangsheng Xiong
Summary: In this study, a transparent superhydrophobic coating was developed based on a carbonaceous soot framework without the use of fluorinated chemicals or low-surface-energy post-treatment. The coating exhibited excellent visible light transparency and droplet-bouncing ability, enabling the surface to stay clean in harsh and complex conditions.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Jixi Zhang, Ligui Zhang, Xiao Gong
Summary: By utilizing a simple spraying method, wear-resistant superhydrophobic coatings can be constructed on various substrates, showcasing excellent water-repellent properties even after undergoing multiple physical tests and exposure to harsh environmental conditions. The coatings also possess self-cleaning capabilities, making them suitable for applications in construction, chemicals, transportation, and electronics due to their simplicity, cost-effectiveness, and environmental friendliness.
Article
Forestry
Ekim Elcin Soyturk, S. Nami Kartal, M. Serdar Onses, Nusret Celik
Summary: PDMS and HSNP were used to coat wood surfaces to reduce boron release from DOT-treated wood. The modified wood specimens showed improved resistance against mold fungi and had higher water contact angles. However, complete protection was not achieved with DOT + HSNP and DOT-only treated specimens. Further research is needed to understand the interaction mechanisms between PDMS/HSNP and wood surfaces.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Forestry
Ekim Elcin Soyturk, S. Nami Kartal, Evren Terzi, M. Serdar Onses, Kadir Sarkdemir, Nusret Celik
Summary: Consolidation of wood is essential for maintaining its structural functions after degradation, and the choice of consolidant system should be compatible and allow the use of additives. The addition of boric acid enhanced the fire resistance of Paraloid B72 (R)-treated specimens, and thermogravimetric analyses showed increased resistance to thermal degradation. Paraloid B72 (R) treatments reduced water absorption and increased hydrophobicity, but did not effectively limit boron leaching. Vacuum treatment with boric acid and Paraloid B72 (R) resulted in lower mold growth rates compared to Paraloid B72 (R) treatment alone.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Chemistry, Physical
Ilker Torun, Nusret Celik, N. Burak Kiremitler, Xian Huang, M. Serdar Onses
Summary: This manuscript presents a fluorine-free approach to achieve transparent and superhydrophobic coatings on a transparent electrode. The method involves the formation of a poly(ethylene glycol) grafted film on an indium oxide coated glass substrate, followed by spray-coating alkylsilane functionalized nanoparticles. The resulting substrate exhibits high water repellency, excellent optoelectronic performance, and stability.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Nusret Celik, Furkan Sahin, Sultan Suleyman Ozel, Gulay Sezer, Nail Gunaltay, Mahmut Ruzi, M. Serdar Onses
Summary: A fluorine-free and biocompatible superhydrophobic coating, composed of silica nanoparticles and carnauba wax, has been developed for thermal healing after abrasion. The rapid self-healing ability of the coating is attributed to the low melting point of carnauba wax and its migration to the surface of hydrophilic silica nanoparticles. The coating not only exhibits fast self-healing, increased water repellency, and thermal stability after healing, but also shows high levels of biocompatibility.
Article
Chemistry, Multidisciplinary
Nusret Celik, Serdar Akay, Furkan Sahin, Gulay Sezer, Esen Dagasan Bulucu, Mahmut Ruzi, Hans-Juergen Butt, Mustafa Serdar Onses
Summary: A mechanochemical approach for practical and solvent-free manufacturing of superhydrophobic surfaces is reported, which overcomes the limitations of existing methods in terms of solvent usage, chemical processes, biocompatibility, and material cost. The approach enables the ultra-rapid preparation of superhydrophobic surfaces in a single-step without the need for washing, separation, and drying. The covalent grafting of silicone to nanoparticles through hydrolytic rupture and free radical generation plays a key role in achieving superhydrophobicity.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
M. Sakir, N. Torun, N. Kayaci, I. Torun, M. Kalay, M. S. Onses
Summary: This manuscript presents a method for the fabrication of silver nanoflowers with high surface-enhanced Raman scattering (SERS) activity and unique morphology. The nanoflowers are formed through seed-mediated growth of silver nanostructures over gold nanoparticles on hemispherical polymer features. The silver nanoflowers exhibit high SERS activity, allowing for detection of rhodamine 6G at a concentration of 100 pM. This fabrication method has great potential for anti-counterfeiting applications.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Forestry
F. Digdem Tuncer, S. Nami Kartal, Ekim Elcin Soyturk, Rachel A. Arango, Katie M. Ohno, M. Serdar Onses, Nusret Celik, Claudia Marcela Ibanez
Summary: This study evaluated the effect of contact charring plus linseed oil submersion on wood chemistry and microstructure in Pinus taeda and Eucalyptus bosistoana wood specimens. The study found that charring increased the total lignin content and decreased the total carbohydrate content of the wood. Charring also increased the hydrophobicity of the wood surface. The study also observed that charring affected the sensitivity and homogeneity of the cell walls.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Nanoscience & Nanotechnology
Nusret Celik, Berk Sezen, Furkan Sahin, Ahmet Ceylan, Mahmut Ruzi, Mustafa Serdar Onses
Summary: This study presents a rapid and eco-friendly approach to preparing superhydrophobic surfaces by chemically grafting alkylsilane molecules onto silica nanoparticles using a mechanochemical process. The resulting surface exhibits high water contact angle, low sliding angle, durability, and antifouling ability against urine. The proposed approach is practical, swift, and cost-effective, making it a scalable and eco-friendly technique for the solvent-free preparation of superhydrophobic surfaces.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Abidin Esidir, Nilgun Kayaci, N. Burak Kiremitler, Mustafa Kalay, Furkan Sahin, Gulay Sezer, Murat Kaya, M. Serdar Onses
Summary: Counterfeit products in the pharmaceutical and food industries are a growing threat to health. This study presents the development of security labels using food-grade materials, specifically food-grade corn starch and a food colorant. The labels are created through spin-coating and transfer onto an edible gelatin film, with randomly positioned particles used to construct a physically unclonable function (PUF)-based security label. The performance of the PUFs demonstrates their potential in preventing counterfeiting, and their biocompatibility is confirmed through cell assays.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Mustafa Kalay, Abidin Esidir, Mahmut Ruzi, N. Burak Kiremitler, Mustafa Serdar Onses
Summary: This study proposes stable and addressable polymer PUFs, utilizing a cross-linkable polymer system, which demonstrates high stochastic characteristics and low-cost production. The performance of the polymer features is evaluated through various analyses, and direct image authentication is achieved using feature matching algorithms.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Nanoscience & Nanotechnology
Nusret Celik, Furkan Sahin, Mahmut Ruzi, Ahmet Ceylan, Hans-Jurgen Butt, Mustafa Serdar Onses
Summary: A mechanochemical activation strategy enables solventless grafting of PDMS onto various substrates, resulting in liquid-like coating surfaces. The method offers great potential for applications such as anti-biofouling coatings.
ACS APPLIED MATERIALS & INTERFACES
(2023)
