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Cholesterol Nanofiber Patches with Sustainable Oil Delivery Eliminate Inflammation in Atopic Skin. 可持续输油的胆固醇纳米纤维贴片可消除特应性皮肤炎症
IF 8.3 2区 材料科学
ACS Applied Materials & Interfaces Pub Date : 2024-07-12 DOI: 10.1021/acsami.4c09400
Ewa A Sroczyk, Aleksandra Tarasiuk, Marcin Talar, Gregory C Rutledge, Adam Makaro, Zofia Misztal, Maria Wołyniak, Krzysztof Berniak, Maciej Sałaga, Jakub Fichna, Urszula Stachewicz
{"title":"Cholesterol Nanofiber Patches with Sustainable Oil Delivery Eliminate Inflammation in Atopic Skin.","authors":"Ewa A Sroczyk, Aleksandra Tarasiuk, Marcin Talar, Gregory C Rutledge, Adam Makaro, Zofia Misztal, Maria Wołyniak, Krzysztof Berniak, Maciej Sałaga, Jakub Fichna, Urszula Stachewicz","doi":"10.1021/acsami.4c09400","DOIUrl":"https://doi.org/10.1021/acsami.4c09400","url":null,"abstract":"<p><p>Atopic skin is dry and itchy and lacks integrity. Impaired skin barrier results from altered lipid composition of the skin. A crucial skin lipid, cholesterol, provides flexibility and homeostasis of the cell membranes' lipid bilayer. Cholesterol-based creams and natural oils, especially blackcurrant seed oil, are beneficial for skin care as they hydrate the skin and improve its integrity. The major atopic symptom, skin dryness, can be overcome by the application of porous patches enhanced with cholesterol and natural oil. The base of the patches is constructed of polyimide (PI) nanofibers with cholesterol coatings and externally added blackcurrant seed oil. The presence of cholesterol in PI mats hinders the passage of oil through the patches to the skin, resulting in sustained and prolonged skin hydration. The theoretical and numerical investigations of oil dynamics in porous mats confirmed the experimental results, showing a prolonged skin hydration effect up to 6 h. Additionally, as demonstrated by in vivo tests on atopic mice, cholesterol patches lower serum immunoglobulin E levels and expression of proinflammatory cytokines in the skin, thereby accelerating skin healing. Our results hold great promise for the long-term application of the patches in atopic dermatitis treatment.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Strong Vertical Piezoelectricity and Broad-pH-Value Photocatalyst in Ferroelastic Y2Se2BrF Monolayer. 铁弹性 Y2Se2BrF 单层中的强垂直压电性和宽 PH 值光催化剂。
IF 9.6 1区 材料科学
Nano Letters Pub Date : 2024-07-12 DOI: 10.1021/acs.nanolett.4c01943
Qi-Wen He, Jun-Hui Wang, Dan-Yang Zhu, Dai-Song Tang, Zengtao Lv, Feng Guo, Xiao-Chun Wang
{"title":"Strong Vertical Piezoelectricity and Broad-pH-Value Photocatalyst in Ferroelastic Y<sub>2</sub>Se<sub>2</sub>BrF Monolayer.","authors":"Qi-Wen He, Jun-Hui Wang, Dan-Yang Zhu, Dai-Song Tang, Zengtao Lv, Feng Guo, Xiao-Chun Wang","doi":"10.1021/acs.nanolett.4c01943","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c01943","url":null,"abstract":"<p><p>With the development of miniaturized devices, there is an increasing demand for 2D multifunctional materials. Six ferroelastic semiconductors, Y<sub>2</sub>Se<sub>2</sub><i>XX'</i> (<i>X</i>, <i>X'</i> = I, Br, Cl, or F; <i>X</i> ≠ <i>X'</i>) monolayers, are theoretically predicted here. Their in-plane anisotropic band structure, elastic and piezoelectric properties can be switched by ferroelastic strain. Moderate energy barriers can prevent the undesired ferroelastic switching that minor interferences produce. These monolayers exhibit high carrier mobilities (up to 10<sup>4</sup> cm<sup>2</sup> V<sup>-1</sup> s<sup>-1</sup>) with strong in-plane anisotropy. Furthermore, their wide bandgaps and high potential differences make them broad-pH-value and high-performance photocatalysts at pH value of 0-14. Strikingly, Y<sub>2</sub>Se<sub>2</sub>BrF possesses outstanding <i>d</i><sub>33</sub> (<i>d</i><sub>33</sub> = -405.97 pm/V), greatly outperforming CuInP<sub>2</sub>S<sub>6</sub> by 4.26 times. Overall, the nano Y<sub>2</sub>Se<sub>2</sub>BrF is a hopeful candidate for multifunctional devices to generate a direct current and achieve solar-free photocatalysis. This work provides a new paradigm for the design of multifunctional energy materials.</p>","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":null,"pages":null},"PeriodicalIF":9.6,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141589008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling Scanning Electrochemical Cell Microscopy (SECCM) in Twisted Bilayer Graphene. 在扭曲双层石墨烯中模拟扫描电化学电池显微镜 (SECCM)。
IF 4.8 2区 化学
The Journal of Physical Chemistry Letters Pub Date : 2024-07-12 DOI: 10.1021/acs.jpclett.4c01002
Mohammad Babar, Venkatasubramanian Viswanathan
{"title":"Modeling Scanning Electrochemical Cell Microscopy (SECCM) in Twisted Bilayer Graphene.","authors":"Mohammad Babar, Venkatasubramanian Viswanathan","doi":"10.1021/acs.jpclett.4c01002","DOIUrl":"https://doi.org/10.1021/acs.jpclett.4c01002","url":null,"abstract":"<p><p>Twisted 2D-flat band materials host exotic quantum phenomena and novel moiré patterns, showing immense promise for advanced spintronic and quantum applications. Here, we evaluate the nanostructure-activity relationship in twisted bilayer graphene by modeling it under the scanning electrochemical cell microscopy setup to resolve its spatial moiré domains. We solve the steady state ion transport inside a 3D nanopipette to isolate the current response at AA and AB domains. Interfacial reaction rates are obtained from a modified Marcus-Hush-Chidsey theory combining input from a tight binding model that describes the electronic structure of bilayer graphene. High rates of redox exchange are observed at the AA domains, an effect that reduces with diminished flat bands or a larger cross-sectional area of the nanopipette. Using voltammograms, we identify an optimal voltage that maximizes the current difference between the domains. Our study lays down the framework to electrochemically capture prominent features of the band structure that arise from spatial domains and deformations in 2D flat-band materials.</p>","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141589034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cycloadditions of Benzynes with the Azoxy [RN═N+(O-)R'] 1,3-Dipole Tautomer of 1-Hydroxybenzotriazole (HOBT). 苄炔与 1-羟基苯并三唑 (HOBT) 的氮氧 [RN═N+(O-)R'] 1,3-二极同系物的环加成反应。
IF 4.9 1区 化学
Organic Letters Pub Date : 2024-07-12 Epub Date: 2024-07-01 DOI: 10.1021/acs.orglett.4c01819
Sangjun Lee, Thomas R Hoye
{"title":"Cycloadditions of Benzynes with the Azoxy [RN═N<sup>+</sup>(O<sup>-</sup>)R'] 1,3-Dipole Tautomer of 1-Hydroxybenzotriazole (HOBT).","authors":"Sangjun Lee, Thomas R Hoye","doi":"10.1021/acs.orglett.4c01819","DOIUrl":"10.1021/acs.orglett.4c01819","url":null,"abstract":"<p><p>1,3-Dipolar cycloadditions of azoxy species are rare. HOBT exists as a pair of tautomers, one of which contains an azoxy subunit. We show that heavily substituted, thermally generated benzynes react with HOBT by engaging the azoxy tautomer to give products having a benzotriazole with a benzyne-derived <i>o</i>-hydroxyaryl group at N2. DFT calculations were used to probe aspects of the mechanism. HOBT analogs of the uronium family (HBTU, HCTU, TATU, and HATU) react in an analogous fashion. The parent 1,2-dehydrobenzene (<i>o</i>-benzyne) generated by the action of (basic) CsF reacts with HOBT in an orthogonal manner to give, exclusively, an N1-arylated product.</p>","PeriodicalId":54,"journal":{"name":"Organic Letters","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141464390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nonactivated Aziridine Synthesis by Intermolecular Polarity-Mismatched Carboamination of Unactivated Alkenes with Unactivated Alkyl Halides. 通过未活化烯与未活化烷基卤化物的分子间极性错配羧基化合成非活化氮丙啶。
IF 4.9 1区 化学
Organic Letters Pub Date : 2024-07-12 Epub Date: 2024-07-01 DOI: 10.1021/acs.orglett.4c01224
Linlin Wu, Lei Li, Yao Zhao, Jiacheng Rui, Ying Zhan, Ling Zhang, Rizhi Chen, Jianrong Steve Zhou, Chenjie Zhu, Xiaojin Wu
{"title":"Nonactivated Aziridine Synthesis by Intermolecular Polarity-Mismatched Carboamination of Unactivated Alkenes with Unactivated Alkyl Halides.","authors":"Linlin Wu, Lei Li, Yao Zhao, Jiacheng Rui, Ying Zhan, Ling Zhang, Rizhi Chen, Jianrong Steve Zhou, Chenjie Zhu, Xiaojin Wu","doi":"10.1021/acs.orglett.4c01224","DOIUrl":"10.1021/acs.orglett.4c01224","url":null,"abstract":"<p><p>A general intermolecular polarity-mismatched carboamination reaction of unactivated alkenes with unactivated alkyl halides has been developed. A series of nonactivated alkyl-substituted aziridines were constructed in exclusive regioselectivity. The dual polarity-mismatched mechanism might be involved.</p>","PeriodicalId":54,"journal":{"name":"Organic Letters","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141464392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Iridium-Catalyzed Asymmetric Hydrogenation of Unfunctionalized Cycloalkenes to Access Chiral 2-Aryl Tetralins. 铱催化未官能化环烯的不对称氢化反应以获得手性 2-芳基四氢萘。
IF 4.9 1区 化学
Organic Letters Pub Date : 2024-07-12 Epub Date: 2024-07-01 DOI: 10.1021/acs.orglett.4c02054
Tierui Pan, Qianjia Yuan, Defeng Xu, Wanbin Zhang
{"title":"Iridium-Catalyzed Asymmetric Hydrogenation of Unfunctionalized Cycloalkenes to Access Chiral 2-Aryl Tetralins.","authors":"Tierui Pan, Qianjia Yuan, Defeng Xu, Wanbin Zhang","doi":"10.1021/acs.orglett.4c02054","DOIUrl":"10.1021/acs.orglett.4c02054","url":null,"abstract":"<p><p>The transition-metal catalyzed asymmetric hydrogenation of unfunctionalized alkenes is challenging. Herein, we report an efficient iridium-catalyzed asymmetric hydrogenation of unfunctionalized cycloalkenes, delivering chiral 2-aryl tetralins in excellent yields and with moderate to excellent enantioselectivities. The reaction can be performed on a gram-scale with a low catalyst loading (S/C = 1000), and the reduced product was obtained without erosion of the enantioselectivity. Deuterium experiments indicated that the C═C bond in the substrate is hydrogenated directly without isomerization.</p>","PeriodicalId":54,"journal":{"name":"Organic Letters","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141475444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to "Protein Transduction System Based on Tryptophan-Zipper against Intracellular Infections via Inhibiting Ferroptosis of Macrophages". 更正 "基于色氨酸-Zipper 的蛋白质传导系统通过抑制巨噬细胞的铁卟啉症来对抗细胞内感染"。
IF 15.8 1区 材料科学
ACS Nano Pub Date : 2024-07-12 DOI: 10.1021/acsnano.4c07390
Yuxin Fang, Ling Li, Mingrui Sui, Qianzhi Jiang, Na Dong, Anshan Shan, Junguang Jiang
{"title":"Correction to \"Protein Transduction System Based on Tryptophan-Zipper against Intracellular Infections via Inhibiting Ferroptosis of Macrophages\".","authors":"Yuxin Fang, Ling Li, Mingrui Sui, Qianzhi Jiang, Na Dong, Anshan Shan, Junguang Jiang","doi":"10.1021/acsnano.4c07390","DOIUrl":"https://doi.org/10.1021/acsnano.4c07390","url":null,"abstract":"","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":null,"pages":null},"PeriodicalIF":15.8,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Combining Native Mass Spectrometry and Proteomics to Differentiate and Map the Metalloform Landscape in Metallothioneins. 结合原生质谱法和蛋白质组学来区分和绘制金属硫蛋白中的金属形态图。
IF 3.8 2区 生物学
Journal of Proteome Research Pub Date : 2024-07-12 DOI: 10.1021/acs.jproteome.4c00271
Manuel David Peris-Díaz, Alicja Orzeł, Sylwia Wu, Karolina Mosna, Perdita E Barran, Artur Krężel
{"title":"Combining Native Mass Spectrometry and Proteomics to Differentiate and Map the Metalloform Landscape in Metallothioneins.","authors":"Manuel David Peris-Díaz, Alicja Orzeł, Sylwia Wu, Karolina Mosna, Perdita E Barran, Artur Krężel","doi":"10.1021/acs.jproteome.4c00271","DOIUrl":"https://doi.org/10.1021/acs.jproteome.4c00271","url":null,"abstract":"<p><p>Within the intricate landscape of the proteome, approximately 30% of all proteins bind metal ions. This repertoire is even larger when considering all the different forms of a protein, known as proteoforms. Here, we propose the term \"metalloforms\" to refer to different structural or functional variations of a protein resulting from the binding of various hetero- or homogeneous metal ions. Using human Cu(I)/Zn(II)-metallothionein-3 as a representative model, we developed a chemical proteomics strategy to simultaneously differentiate and map Zn(II) and Cu(I) metal binding sites. In the first labeling step, <i>N</i>-ethylmaleimide reacts with Cysteine (Cys), resulting in the dissociation of all Zn(II) ions while Cu(I) remains bound to the protein. In the second labeling step, iodoacetamide is utilized to label Cu(I)-bound Cys residues. Native mass spectrometry (MS) was used to determine the metal/labeling protein stoichiometries, while bottom-up/top-down MS was used to map the Cys-labeled residues. Next, we used a developed methodology to interrogate an isolated rabbit liver metallothionein fraction containing three metallothionein-2 isoforms and multiple Cd(II)/Zn(II) metalloforms. The approach detailed in this study thus holds the potential to decode the metalloproteoform diversity within other proteins.</p>","PeriodicalId":48,"journal":{"name":"Journal of Proteome Research","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring the Health Benefits of Boletus aereus Polysaccharides: Extraction, Structural Characterization, and Antiproliferative Properties against Non-Hodgkin's Lymphomas (NHLs). 探索牛肝菌多糖对健康的益处:牛肝菌多糖的提取、结构特征和对非霍奇金淋巴瘤(NHLs)的抗增殖特性。
IF 5.7 1区 农林科学
Journal of Agricultural and Food Chemistry Pub Date : 2024-07-12 DOI: 10.1021/acs.jafc.4c03945
Haidi Wang, Linyu Yang, Qiang Qiu, Qianru Rao, Li Liu, Yuchen Cui, Liang Zhang, Yucheng Ma, Xi Jin, Dongxue Yang, Shiqian Qi, Kunjie Wang, Yong Li, Xufeng Zhang, Min Zhao
{"title":"Exploring the Health Benefits of <i>Boletus aereus</i> Polysaccharides: Extraction, Structural Characterization, and Antiproliferative Properties against Non-Hodgkin's Lymphomas (NHLs).","authors":"Haidi Wang, Linyu Yang, Qiang Qiu, Qianru Rao, Li Liu, Yuchen Cui, Liang Zhang, Yucheng Ma, Xi Jin, Dongxue Yang, Shiqian Qi, Kunjie Wang, Yong Li, Xufeng Zhang, Min Zhao","doi":"10.1021/acs.jafc.4c03945","DOIUrl":"https://doi.org/10.1021/acs.jafc.4c03945","url":null,"abstract":"<p><p><i>Boletus aereus</i> Fr. ex Bull. stands out as a delectable edible mushroom with high nutritional and medicinal values, featuring polysaccharides as its primary nutrient composition. In our continuous exploration of its beneficial substances, a novel polysaccharide (BAPN-1) with a molecular weight of 2279 kDa was prepared. It was identified as a glucan with a backbone composed of the residues →4)-α-Glc<i>p</i>-(1→ and →4,6)-α-Glc<i>p</i>-(1→ connected in a proportion of 5:1 and a β-Glc<i>p</i>-(1→ side residue attached at C6 of the →4,6)-α-Glc<i>p</i>-(1→ residue. Biologically, BAPN-1 exhibited broad-spectrum antiproliferative activities against various NHL cells, including HuT-78, OCI-LY1, OCI-LY18, Jurkat, RL, and Karpas-299, with IC<sub>50</sub> values of 0.73, 1.21, 3.18, 1.52, 3.34, and 4.25 mg/mL, respectively. Additionally, BAPN-1 significantly induced cell cycle arrest in the G2/M phase and caused apoptosis of NHL cells. Mechanistically, bulk RNA sequencing and Western blot analysis revealed that BAPN-1 could upregulate cyclin B1 and enhance cleaved caspase-9 expression through the inhibition of FGFR3 and RAF-MEK-ERK signaling pathways. This work supports the improved utilization of <i>B. aereus</i> in high-value health products.</p>","PeriodicalId":41,"journal":{"name":"Journal of Agricultural and Food Chemistry","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrosion Behavior of Al-Containing CoNiV Medium Entropy Alloy Coating Fabricated by Laser Cladding. 激光熔覆法制造的含铝 CoNiV 中熵合金涂层的腐蚀行为
IF 3.7 2区 化学
Langmuir Pub Date : 2024-07-12 DOI: 10.1021/acs.langmuir.4c02006
Minghao Fei, Peng Xu, Ming Zhang, Jianhua Chen, Chuan Yu
{"title":"Corrosion Behavior of Al-Containing CoNiV Medium Entropy Alloy Coating Fabricated by Laser Cladding.","authors":"Minghao Fei, Peng Xu, Ming Zhang, Jianhua Chen, Chuan Yu","doi":"10.1021/acs.langmuir.4c02006","DOIUrl":"https://doi.org/10.1021/acs.langmuir.4c02006","url":null,"abstract":"<p><p>CoNiV medium entropy alloys (MEAs) have been widely recognized for their superior corrosion resistance. Nonetheless, their extensive application has been hindered by high production costs and complex fabrication processes. In this study, CoNiVAl<sub><i>x</i></sub> MEA coatings were synthesized on AISI 304 stainless steel substrates via laser cladding technology. The microstructure, phase composition, corrosion resistance, and corrosion mechanisms of the coatings were systematically investigated by using advanced characterization techniques, including optical microscopy, scanning electron microscopy, transmission electron microscopy, X-ray diffractometry, and electrochemical workstation analysis. The ratio of O<sup>2-</sup>/OH<sup>-</sup> in the passivation film of the coated surface exhibited a gradual increase with the addition of Al. The formation of the Al-containing precipitated phase L2<sub>1</sub> was observed at <i>x</i> = 0.3 and 0.4. The results demonstrated that moderate Al doping (<i>x</i> ≤ 0.2) enhanced corrosion resistance by improving the stability of the passivation film and reducing the thermodynamic tendency toward corrosion. In contrast, excessive Al doping (<i>x</i> > 0.2) led to the formation of the L2<sub>1</sub> phase, which increased the susceptibility to localized corrosion, thus compromising the overall corrosion resistance.</p>","PeriodicalId":50,"journal":{"name":"Langmuir","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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