ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Kaige Yan,Baoluo He,Shihan Wu,Yixin Zeng,Peng Wang,Shujuan Liu,Qian Ye,Feng Zhou,Weimin Liu
Hydrogels are ideal for antifouling materials due to their high hydrophilicity and low adhesion properties. Herein, poly(ionic liquid) hydrogels integrated with zwitterionic copolymer-functionalized gallium-based liquid metal (PMPC-GLM) microgels were successfully prepared by a one-pot reaction. Poly(ionic liquid) hydrogels (IL-Gel) were obtained by chemical cross-linking the copolymer of ionic liquid, acrylic acid, and acrylamide, and the introduction of ionic liquid (IL) significantly increased the cross-linking density; this approach consequently enhanced the mechanical and antiswelling properties of the hydrogels. The swelling ratio of IL-Gel decreased eight times compared to the original hydrogels. PMPC-GLM microgels were prepared through grafting the zwitterionic polymer PMPC onto the GLM nanodroplet surface, which exhibited efficient antifouling performance attributed to the bactericidal effect of Ga3+ and the antibacterial effect of the zwitterionic polymer layer PMPC. Based on the synergistic effect of PMPC-GLM microgels and IL, the composite hydrogels PMPC-GLM@IL-Gel not only exhibited excellent mechanical and antiswelling properties but also showed outstanding antibacterial and antifouling properties. Consequently, PMPC-GLM@IL-Gel hydrogels achieved inhibition rates of over 90% against bacteria and more than 85% against microalgae.
研究领域:
材料科学
·
生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2021
·
IF 5.161
Jianhui Wu,Chunhua Wang,Wei Lin,To Ngai
Due to its nontoxicity and eco-friendliness, waterborne polyurethane (WPU) has attracted increasing attention for use in various industrial applications. To ensure dispersal or dissolution in water, the molecular structures of most WPUs contains ionic groups. Dried WPU films, however, are generally hydrophilic and have a limited application range. To confer high hydrophobicity and antifouling properties to WPU, the incorporation of a fluorocarbon chain into WPU is an efficient approach. Herein, we present a facile and effective approach for synthesizing a novel WPU with a fluorinated side group, a key aspect of which is the preparation of dihydroxy-terminated 1,1,2,2-tetrahydroperfluorodecyl methacrylate (FDMA(OH) 2 ) by a thiol-ene “click” reaction. A chain extender rich in fluorinated side groups is then adapted specifically to an OCN-terminated WPU prepolymer to obtain fluorinated waterborne polyurethane (FWPU). Our results show that fluorine units are present on the surface of FWPU films. The introduction of FDMA side groups slightly decreases the storage and thermal stability of FWPU but does not affect its usability and significantly increases its hydrophobicity. The result of a repelling test demonstrates that the introduction of FDMA side groups endows the WPU films with excellent waterproofing and antifouling properties. This new method provides a facile and effective way to fabricate of FWPU for its practical application in waterproof and antifouling coatings.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Hao Qin,Pengpeng Lu,Jingyang Xu,Kai Jiang,Danying Zhao,Zhenhua Jiang,Jie Zhao,Yunhe Zhang
Superhydrophobic surfaces generally encounter substantial challenges due to their weak stability when subjected to harsh environments. Specifically, the delicate micro-nano structures present on these surfaces are susceptible to external destruction. Given the robust mechanical characteristics and chemical stability of polyether ether ketone (PEEK), ultra-stable superhydrophobic PEEK surfaces were developed using template replication and chemical modification methods, achieving a water contact angle (WCA) of 159.6 ± 1.4° and a water rolling angle (WRA) of 3.7 ± 0.6°. The stable superhydrophobicity is primarily attributed to the synergistic effect of the robust arrayed micro-nano structures and the stably bonded fluorine long chains. Notably, the superhydrophobic PEEK surfaces demonstrate remarkable durability. They could maintain satisfactory superhydrophobicity even after 120 sandpaper abrasion cycles, 600 sharp steel blade scraping cycles, 10 L of water impact, 24 h of ultrasonic destruction, 52 weeks of ageing, 7 days of corrosive reagent damage, 7 days of UV irradiation, etc. Moreover, these fabricated superhydrophobic PEEK surfaces also exhibit robust antifouling and self-cleaning properties. This ultra-stable superhydrophobic PEEK surface is of significant importance for efficient antifouling of biomedical and aerospace in harsh environments.
研究领域:
材料科学
·
生物医学工程
·
航空航天工程
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2024
·Vol. 16
·期 8
·1167
·
IF 4.7
Jipeng Chen,Xiaoxiao Zheng,Rongkun Jian,Weibin Bai,Guocai Zheng,Zhipeng Xie,Qi Lin,Fengcai Lin,Yanlian Xu
Marine anti-fouling coatings represent an efficient approach to prevent and control the marine biofouling. However, a significant amount of antifouling agent is added to improve the static antifouling performance of the coatings, which leads to an issue whereby static antifouling performance conflicts with eco-friendly traits. Herein, this work reports an in situ reduction synthesis of silver nanoparticles (AgNPs) within polymers to produce composite coatings, aiming to solve the aforementioned issue. Firstly, urushiol-based benzoxazine monomers were synthesized by the Mannich reaction, using an eco-friendly natural product urushiol andn-octylamine and paraformaldehyde as the reactants. Additionally, AgNPs were obtained through the employment of free radicals formed by phenolic hydroxyl groups in the urushiol-based benzoxazine monomers, achieved by the in situ reduction of silver nitrate in benzoxazine. Then, the urushiol-based benzoxazine/AgNPs composite coatings were prepared by the thermosetting method. AgNPs exhibit broad-spectrum and highly efficient antimicrobial properties, with a low risk to human health and a minimal environmental impact. The composite coating containing a small amount of AgNPs (≤1 wt%) exhibits effective inhibition against various types of bacteria and marine microalgae in static immersion, thereby displaying outstanding antifouling properties. This organic polymer and inorganic nanoparticle composite marine antifouling coating, with its simple preparation method and eco-friendliness, presents an effective solution to the conflict between static antifouling effectiveness and environmental sustainability in marine antifouling coatings.
研究领域:
材料科学
·
海洋生物学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2024
·Vol. 28
·期 8
·2515-2530
·
IF 2.6
Liu Cansen,Tai Xiaoming,Xu Jianyu,Xie Huisi,Li Jinyan
Rubber tire mold fouling is a severe problem leading to mold surface corrosion, tire defects, and extra energy consumption. Traditional mechanical and chemical cleaning is inefficient and induces mold surface damage. Low surface energy organic coating displays antiadhesive behavior but is susceptible to wear. Here, we develop a bioinspired Co-CeO 2 /MoS 2 coating with effective mechanical robustness, corrosion resistance, and antifouling behavior by leveraging a slippery liquid-infused surface (SLIPS) strategy. The micro-nanostructure of the coating serves as mechanical stability and anticorrosion skeleton with the infused lubricant acting as a slippery antifouling surface. The variation of microstructure, mechanical strength, corrosion resistance, and antifouling behavior of the coating with individual and synergistic addition of CeO 2 and MoS 2 is systematically characterized. The slippery Co-CeO 2 /MoS 2 coating shows excellent mechanical stiffness, corrosion resistance, and antifouling performances in rubber vulcanization conditions. Graphical abstract
研究领域:
材料科学
·
防腐蚀工程
·
生物仿生学
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2015
·
IF 5.056
Lichuan Huang,Song Zhao,Zhi Wang,Junhui Wu,Jixiao Wang,Shichang Wang
In this work, silver nanoparticles (AgNPs) were in situ immobilized on polysulfone (PSf) ultrafiltration membrane via polydopamine (PDA) deposition and in situ reduction of silver ammonia aqueous solution (Ag(NH 3 ) 2 OH). The adhesive and reductive PDA layer existing on the membrane surface induced the reduction of Ag + on the site of surface without surface pore blockage, and also favored to the firm attachment and uniform distribution of AgNPs onto the membrane. The diameter and density of the immobilized AgNPs were regulated by changing [Ag(NH 3 ) 2 ] + ion concentration, which exerted an influence on membrane hydrophilicity and permeation flux. The prepared AgNPs-PDA/PSf membranes were characterized by X-ray photoelectron spectroscopy (XPS), scanning election microscope (SEM), atomic force microscopy (AFM), water contact angle measurement and thermogravimetric analysis (TGA). The results indicated that AgNPs were immobilized on the surface as well as the top layer cross section of the membranes. The increase of Ag + ion concentration led to an increase in the size and density of AgNPs anchored onto the membrane. Compared with PSf membrane, AgNPs-PDA/PSf (20 mM) membrane showed higher water flux, slower flux decline rate during BSA solution filtration and higher flux recovery ratio after simple water flushing. The AgNPs-PDA/PSf (20 mM) membrane possessed excellent stability with little release of silver during the filtrate operation or static immersion in water for 12 days. Besides, AgNPs-PDA/PSf (20 mM) membrane displayed excellent anti-bacterial and ani-biofouling properties against E . coli and B . subtilis .
研究领域:
材料科学
·
环境工程
·
生物医学
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULAR CHEMISTRY AND PHYSICS
·
2020
·Vol. 221
·期 6
·1900477
·
IF 2.335
Yunjiao Gu,Shuxue Zhou,Jinlong Yang
Free adjustment of micro/nanophase-separation degrees in coatings is not easily accessible, which is a big handicap in the development of phase-separation-related applications. Here, by utilizing the reactivity difference between two phases, a two-step aza- Michael addition pre-crosslinking strategy, demonstrated by acryloxy-terminated polydimethylsiloxane/polyethylene glycol (PEG) blend coatings, is proposed for the first time to tune microphase separation degrees, and promote compatibility of the biphasic amphiphilic polymer blends. Followed by a systematic study of the two-step pre-crosslinking time, surface morphologies of samples with desired phase-separation degrees are unveiled using optical microscopy, AFM, and XPS. The wettability, and anti-fouling properties — for example, anti-protein and anti-marine bacterial ( Shewanella ) adhesion — of these coatings are assessed. Less protein adsorption is observed on those surfaces with lower receding water contact angles. Shewanella adhesion is efficiently discouraged by the introduction of PEG segments, but the trend evolved with surface wettability and micro/nanophase structure in a complex way.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Boran Hao,Yimin Luo,Wenjun Chan,Liangyi Cai,Shushen Lyu,Zhuangzhu Luo
Mobile screens and optical glass devices encounter formidable engineering and technological bottlenecks in achieving irreversible restoration from surface mechanical scratches. Conventional methodologies involving glass surface micromachining and coatings technology have proven inadequate in effectively addressing the multiple recovery of optical transparency. Here, the synergistic integration principle of inorganic rigid cage-like structures and organic flexible chain segments is employed. A bionic “octopus” textured surface pattern, featuring ordered arrays of nano nodes acting as “post stations” and micro-nano wrinkles serving as “channels”, is one-step fabricated by a dipping-curing coating process. The polymer coating exhibits smooth, transparent, and multiple-self-healing function with patterned antifouling. Introducing and matching the coating onto mobile screens, transparency of wiped/scratched glass is significantly restored by the synergistic use of protonic/non-protonic solvent systems in a dipping-assisted healing process. Intriguingly, the coating achieves surface/internal pattern reconstruction along with excellent transparency, antifouling, and interfacial adhesion mechanical properties, characterized by surface micro-nano textures and internal micro-nano spheres organization, after undergoing multiple treatments with the biocompatible disinfectant and cleaning agent ethanol. In the future, it is expected to develop highly versatile engineering materials for mobile screens, optical lenses and automotive glass, enabling multiple self-healing, self-cleaning, and antifouling properties with broad industrial applications.
研究领域:
材料科学
·
表面工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Yaozhuo Su,Yongqing Zhao,Wenge Zheng,Hongwei Yu,Yinfeng Liu,Linqiong Xu
In this work, an eco-friendly superhydrophobic stereo-complex polylactic acid (Sc-PLA) membrane was fabricated by a facile non-solvent-induced phase separation (NIPS) method, followed by peeling off its skin layer. By adjusting the thickness and roughness, membranes with various multi-scale microstructures could be obtained due to the formation of stereo-complex crystals during the process of phase separation. The Sc-PLA membranes display a hydrophobic wetting property. Interestingly, when the skin layer of the membrane with a 600 μm thickness was peeled off, the water contact angle on the surface of the membrane significantly improved from 142 to 152°, and the membrane displayed superhydrophobic wetting properties, which may be owing to the improvement of roughness for the surface by enlarging the exposure opportunity of finger holes and microstructures. In addition, the Sc-PLA membrane with superhydrophobicity shows excellent antifouling performance and large oil absorption capacity. Predictably, the Sc-PLA membranes may have potential applications in antifouling and oil-water separation.
研究领域:
材料科学
·
环境工程
✓ 已验证
DOI
高影响因子
ACS Applied Polymer Materials
·
2022
·
IF 4.855
Liangliang Zhu,Zejian He,Yifan Zhang,Moontarij Jahan Orvy,Jintao Yang,Mi Zhou,Dong Zhang
Herein, a zwitterionic PF-based copolymer, polyfluorene-a-polybenzothiadiazole-g-polycaprolactone-b-poly[3-dimethyl(methacryloxyethyl)-propaneammoniumsulfonate] [PF-a-PBTH-g-(PCL-b-PDMAPS)], was synthesized by combining multiple polymerization techniques and further quaternization. The resultant copolymer with optimized structures (P5) was able to form stabilized unimolecular micelles in an aqueous solution with a diameter of approximately 110 nm. The unique donor–acceptor structure between fluorene and benzothiadiazole group along the conjugated main chains endows copolymers with yellow-green fluorescence, while the PDMAPS chains with a unique zwitterionic nature enabled not only to enhance water solubility, drug loading efficiency (DLE), and drug loading capacity (DLC) of the whole copolymers but also to present promising antifouling property by preventing nonspecific protein/bacteria adhesion. Further in vivo and in vitro experiments demonstrate that the resultant P5 micelles also present lower cytotoxicity and efficient cellular uptake with the incubation of HeLa and HUVEC cells, which tends to prolong the circulation time of drugs. Our work not only provides a rational combination of zwitterions and polyfluorenes to significantly enhance the water solubility of hydrophobic fluorophores but also exhibits the potential of promising bioimaging for dual stimuli-responsive micelles in vitro (simulated body fluids) and in vivo (open).
研究领域:
材料科学
·
生物医学工程
·
药剂学
✓ 已验证
DOI
高影响因子
Polymer Chemistry
·
2021
·Vol. 12
·期 31
·4524-4531
·
IF 5.582
Xiaoqing Ai,Jiansen Pan,Qingyi Xie,Chunfeng Ma,Guangzhao Zhang
Hyperbranched polymers with high solubility, low viscosity, low crystallinity and dense functional groups are promising to be used in adhesives and coatings. In this study, we have developed a cleavable hyperbranched poly(ester-co-vinyl) with diethylene glycol units and unreacted pendant vinyl groups via radical ring-opening copolymerization of 2-methylene-1,3-dioxepane (MDO), vinyl acetate (VAc) and diethylene glycol divinyl ether. Such a hyperbranched polymer with vinyl groups can form a crosslinked network by UV curing. The cleavable ester bonds are randomly distributed in the main chain, so they can degrade into small fragments with molar masses of 400–600 g mol−1. The degradation rate can be well regulated with MDO content. The protein resistance, antibacterial adhesion and anti-diatom activity of the hyperbranched polymer were examined. The polymer with diethylene glycol units exhibits remarkable antifouling abilities and can effectively inhibit the adhesion of protein, marine bacteria (Pseudomonas sp.) and diatoms (Navicula incerta). The hyperbranched polymer coating can find application in marine antifouling.
研究领域:
材料科学
·
海洋生物学
·
高分子化学
✓ 已验证
DOI
高影响因子
International Journal of Extreme Manufacturing
·
2024
·Vol. 7
·期 1
·015004
·
IF 16.1
Jialiang Zhang,Fangzheng Ren,Qing Yang,Qingyun Ma,Jie Liang,Yizhao Meng,Xiaodan Gou,Chongxiao Xia,Feng Chen
Transparent materials utilized as underwater optical windows are highly vulnerable to various forms of pollution or abrasion due to their intrinsic hydrophilic properties. This susceptibility is particularly pronounced in underwater environments where pollutants can impede the operation of these optical devices, significantly degrading or even compromising their optical properties. The glass catfish, known for its remarkable transparency in water, maintains surface cleanliness and clarity despite exposure to contaminants, impurities abrasion, and hydraulic pressure. Inspired by the glass catfish's natural attributes, this study introduces a new solution named subaquatic abrasion-resistant and anti-fouling window (SAAW). Utilizing femtosecond laser ablation and electrodeposition, the SAAW is engineered by embedding fine metal bone structures into a transparent substrate and anti-fouling sliding layer, akin to the sturdy bones among catfish's body. This approach significantly bolsters the window's abrasion resistance and anti-fouling performance while maintaining high light transmittance. The sliding layer on the SAAW's surface remarkably reduces the friction of various liquids, which is the reason that SAAW owns the great anti-fouling property. The SAAW demonstrates outstanding optical clarity even after enduring hundreds of sandpaper abrasions, attributing to the fine metal bone structures bearing all external forces and protecting the sliding layer of SAAW. Furthermore, it exhibits exceptional resistance to biological adhesion and underwater pressure. In a green algae environment, the window remains clean with minimal change in transmittance over one month. Moreover, it retains its wettability and anti-fouling properties when subjected to a depth of 30 m of underwater pressure for 30 d. Hence, the SAAW prepared by femtosecond laser ablation and electrodeposition presents a promising strategy for developing stable optical windows in liquid environments.
研究领域:
材料科学
·
仿生学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）