LANGMUIR
·
2022
·
IF 4.331
Muhammad Imran Jamil,Tao Qian,Waqar Ahmed,Xiaoli Zhan,Fengqiu Chen,Dangguo Cheng,Qinghua Zhang
Clathrate hydrate growth, deposition, and plug formation during oil and gas transportation causes blockage of pipelines. An effective strategy to solve this problem is to mitigate the hydrate formation and reduce its adhesion on pipe walls through a coating process. However, durability failure, corrosion, inability to self-heal, high cost, and strong hydrate adhesion remain unsolved issues. To address these challenges, in this work, we present an in situ self-replenishing nonfluorinated durable hydrate-phobic coating of candle soot particles. The candle soot coating reduces hydrate adhesion by promoting a thick barrier film of hydrocarbons between the hydrate and the soot coated substrate. The hydrocarbons permeating the soot coating display a high contact angle for water and inhibit the formation of water bridges between the hydrate and soot coated substrate. The spherical cyclopentane hydrate slides off easily on the candle soot coating inside the cyclopentane environment. The hydrate former, cyclopentane–water emulsion, and THF–water mixture have high contact angles as well as low hydrate adhesion on soot coating simultaneously. In addition, the coating is flow-induced long-term slippery, durable, low cost, anticorrosion, self-cleaning, and suitable for practical applications.
研究领域:
材料科学
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能源工程
·
表面化学
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产品关联
DOI
PubMed
高影响因子
Advanced Science
·
2024
·Vol. 11
·期 28
·2401636
·
IF 14.3
Mengjiao Liu,Xin Zhang,Yue Xin,Dongxu Guo,Guangkai Hu,Yifei Ma,Bin Yu,Tao Huang,Chengchang Ji,Meifang Zhu,Hao Yu
Triboelectric nanogenerators (TENGs), a promising strategy for harvesting distributed low-quality power sources, face inevitable bottlenecks regarding long-term abrasion and poor durability. Herein, both issues are addressed by selecting an earthworm-inspired self-replenishing bionic film (ERB) as the tribo-material of sliding-freestanding TENGs (SF-TENGs), it consists of an interconnected 3D porous network structure capable of storing and releasing lubricant under cyclic mechanical stimuli. Thanks to the superiority of self-replenishing property, there is no need for periodic replenishment and accurate content control of lubricant over the interfacial-lubricating SF-TENGs based on dense tribo-layers. Additionally, an SF-TENG based on ERB film (ERB-TENG) demonstrates remarkable output stability with only a slight attenuation of 1% after continuous operation for 100 000 cycles. Moreover, the ERB-TENG displays a distinguished anti-wear property, exhibiting no distinct abrasion with an ultra-low coefficient of friction (0.077) and maintaining output stability over a prolonged period of 35 days. Furthermore, integration with an energy management circuit enables the ERB-TENG to achieve a 39-fold boost in charging speed. This work proposes a creative approach to enhance the durability and extend the lifespan of TENG devices, which is also successfully applied to wind energy harvesting and intelligent sports monitoring.
研究领域:
纳米技术
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材料科学
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能量收集
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机械工程
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体育科技
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产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 39
·28596-28607
·
IF 3.9
Shuai Kong,Hao Wei,Yan Zhang,Qingqing Rao
Slippery liquid-infused porous surfaces (SLIPSs) inspired by Nepenthes have attracted much attention owing to their potential application in various cutting-edge fields. However, the performance of SLIPSs is impeded by surface damage and lubricant depletion, thereby limiting their further application. Herein, a UV-responsive slippery surface (SMEMG) was fabricated by introducing the UV-responsive functional group coumarin into the polymer side chain through random copolymerization, followed by crosslinking, curing and impregnation with vegetable oil. The self-healing ability and lubricant self-replenishing performance of the SMEMG were investigated. The results show that upon exposure to UV light, the damaged surface substrate can be repaired through a reversible photodimerization reaction between coumarin groups. Meanwhile, the lubricant oil within the bulk of the SMEMG substrate can be extruded to the surface during the photodimerization reaction, facilitating the recovery of surface wettability. The SMEMG exhibited excellent self-cleaning and anti-algal properties as well as durability in a harsh environment, demonstrating its promising application in marine anti-fouling.
研究领域:
材料科学
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表面工程
·
海洋技术
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Congcong Niu,Xiankun Lin,Doudou Zhang,Jiangpeng Liu,Jie Xu,Qiang He
The limited durability and difficulty in repairing damaged lubrication layers are significant challenges hindering the practical applications of slippery liquid-infused porous surfaces (SLIPS) in fields such as marine antifouling. Here, we present an antifouling SLIPS coating with lubricant self-replenishing properties by grafting silica aerogel onto the layered double hydroxide (LDH) structure. The LDH structure is synthesized on the surface of Mg alloy via a hydrothermal reaction. Following the curing of polymethylsiloxane, silica aerogel is grafted onto the surface, and lubricating oil is infused to obtain the SLIPS coating. The LDH structure provides interconnected microcavities for lubricating oil storage, enabling self-replenishing properties when the lubricating layer is damaged, thereby enhancing the coating's durability. The SLIPS coating exhibits high performance in resisting adhesion of Chlorella vulgaris, Phaeodactylum tricornutum , and Pseudoaltteromonas nigrifaciens , achieving an over 80 % reduction in fouling organism coverage compared to bare Mg. This study presents a promising approach for the application of SLIPS in antifouling.
研究领域:
材料科学
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海洋生物学
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表面工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Haiping Yu,Xiaoyan Li,Mengwei Xu,Hong Zhao,Zaisheng Cai
Hydrophilic anti-fogging coatings face dual challenges of insufficient water resistance and poor weathering durability in practical applications. To address these issues, we propose a natural composite coating system integrating hyaluronic acid (HA), glycerol (Gly), FeCl 3 , and zinc oxide nanoparticles (ZnO-NPs) via a facile mixing strategy. Inspired by the mucin-mediated hydration dynamics of tear films, the HA framework constructs a self-replenishing layer to inhibit fogging while achieving underwater oleophobicity through surface hydration, effectively repelling oily contaminants. Glycerol maintains flexibility and hydration equilibrium through hydrogen-bonded water retention, whereas FeCl 3 crosslinking enhances mechanical strength and water stability via dynamic coordination bonds emulating tear film's ion-modulated self-repair, thereby resisting hydration-induced degradation. ZnO-NPs further endow the coating with photo-induced hydrophilicity. The optimized coating exhibits exceptional water resistance, weathering durability, and mechanical robustness, retaining high transmittance and stable hydrophilicity after 120 h of water immersion, 120 h of xenon lamp irradiation, 40 adhesion cycles, and 300 abrasion tests. Remarkably, the coating demonstrates rapid self-healing within 10 s and superior self-cleaning performance. This study proposes a sustainable strategy to synergistically enhance water resistance and weathering resistance.
研究领域:
材料科学
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高分子科学
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表面工程
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生物材料
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Theranostics
·
2022
·
IF 11.6
Qiqi Xu,Yuetong Zhang,Zulu Yang,Guohui Jiang,Mingzhu Lv,Huan Wang,Chenghui Liu,Jiani Xie,Chengyan Wang,Kun Guo,Zhanjun Gu,Yuan Yong
Nanozyme-based tumor collaborative catalytic therapy has attracted a great deal of attention in recent years. However, their cooperative outcome remains a great challenge due to the unique characteristics of tumor microenvironment (TME), such as insufficient endogenous hydrogen peroxide (H 2 O 2 ) level, hypoxia, and overexpressed intracellular glutathione (GSH). Methods: Herein, a TME-activated atomic-level engineered PtN 4 C single-atom nanozyme (PtN 4 C-SAzyme) is fabricated to induce the “butterfly effect” of reactive oxygen species (ROS) through facilitating intracellular H 2 O 2 cycle accumulation and GSH deprivation as well as X-ray deposition for ROS-involving CDT and O 2 -dependent chemoradiotherapy. Results: In the paradigm, the SAzyme could boost substantial ∙OH generation by their admirable peroxidase-like activity as well as X-ray deposition capacity. Simultaneously, O 2 self-sufficiency, GSH elimination and elevated Pt 2+ release can be achieved through the self-cyclic valence alteration of Pt (IV) and Pt (II) for alleviating tumor hypoxia, overwhelming the anti-oxidation defense effect and overcoming drug-resistance. More importantly, the PtN 4 C-SAzyme could also convert O 2 ·- into H 2 O 2 by their superior superoxide dismutase-like activity and achieve the sustainable replenishment of endogenous H 2 O 2 , and H 2 O 2 can further react with the PtN 4 C-SAzyme for realizing the cyclic accumulation of ∙OH and O 2 at tumor site, thereby generating a “key” to unlock the multi enzymes-like properties of SAzymes for tumor-specific self-reinforcing CDT and chemoradiotherapy. Conclusions: This work not only provides a promising TME-activated SAzyme-based paradigm with H 2 O 2 self-supplement and O 2 -evolving capacity for intensive CDT and chemoradiotherapy but also opens new horizons for the construction and tumor catalytic therapy of other SAzymes.
研究领域:
癌症治疗
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材料科学
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生物化学
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纳米医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）