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Thakur N, Thakur N, Kumar A, Thakur VK, Kalia S, Arya V, Kumar A, Kumar S, Kyzas GZ. A critical review on the recent trends of photocatalytic, antibacterial, antioxidant and nanohybrid applications of anatase and rutile TiO2 nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169815. [PMID: 38184262 DOI: 10.1016/j.scitotenv.2023.169815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/22/2023] [Accepted: 12/29/2023] [Indexed: 01/08/2024]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) have become a focal point of research due to their widespread daily use and diverse synthesis methods, including physical, chemical, and environmentally sustainable approaches. These nanoparticles possess unique attributes such as size, shape, and surface functionality, making them particularly intriguing for applications in the biomedical field. The continuous exploration of TiO2 NPs is driven by the quest to enhance their multifunctionality, aiming to create next-generation products with superior performance. Recent research efforts have specifically focused on understanding the anatase and rutile phases of TiO2 NPs and evaluating their potential in various domains, including photocatalytic processes, antibacterial properties, antioxidant effects, and nanohybrid applications. The hypothesis guiding this research is that by exploring different synthesis methods, particularly chemical and environmentally friendly approaches, and incorporating doping and co-doping techniques, the properties of TiO2 NPs can be significantly improved for diverse applications. The study employs a comprehensive approach, investigating the effects of nanoparticle size, shape, dose, and exposure time on performance. The synthesis methods considered encompass both conventional chemical processes and environmentally friendly alternatives, with a focus on how doping and co-doping can enhance the properties of TiO2 NPs. The research unveils valuable insights into the distinct phases of TiO2 NPs and their potential across various applications. It sheds light on the improved properties achieved through doping and co-doping, showcasing advancements in photocatalytic processes, antibacterial efficacy, antioxidant capabilities, and nanohybrid applications. The study concludes by emphasizing regulatory aspects and offering suggestions for product enhancement. It provides recommendations for the reliable application of TiO2 NPs, addressing a comprehensive spectrum of critical aspects in TiO2 NP research and application. Overall, this research contributes to the evolving landscape of TiO2 NP utilization, offering valuable insights for the development of innovative and high-performance products.
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Affiliation(s)
- Naveen Thakur
- Department of Physics, Career Point University, Hamirpur, Himachal Pradesh 176041, India.
| | - Nikesh Thakur
- Department of Physics, Career Point University, Hamirpur, Himachal Pradesh 176041, India
| | - Anil Kumar
- School of chemical and metallurgical engineering, University of the Witwatersrand, Johannesburg, South Africa
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, SRUC, Kings Buildings West Mains Road, Edinburgh EH9 3JG, United Kingdom
| | - Susheel Kalia
- Department of Chemistry, ACC Wing (Academic Block) Indian Military Academy, Dehradun, Uttarakhand 248007, India
| | - Vedpriya Arya
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, Uttarakhand 249405, India
| | - Ashwani Kumar
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, Uttarakhand 249405, India
| | - Sunil Kumar
- Department of Animal Sciences, Central University of Himachal Pradesh, Kangra, Shahpur, Himachal Pradesh 176206, India
| | - George Z Kyzas
- Hephaestus Laboratory, Department of Chemistry, School of Science, International Hellenic University, Kavala, Greece.
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2
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Hernaiz M, Elexpe I, Aranzabe E, Fernández B, Fernández X, Fernández S, Cortada-García M, Aguayo AT. Study of the Effect of ZnO Functionalization on the Performance of a Fully Formulated Engine Oil. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2540. [PMID: 37764569 PMCID: PMC10536302 DOI: 10.3390/nano13182540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023]
Abstract
The automotive sector is demanding higher specifications to achieve maximum efficiency; in this sense a new generation of lubricants with higher thermo-oxidative stability and superior tribological properties is being explored. The formulation of nanolubricants based on the nature of different nanomaterials is one of the most recent approaches, with several gaps to cover, such as dispersion stability, related to the compatibility of proposed nanomaterials with conventional additives and baseoils used in lubricant formulation. This study evaluated the effect of ZnO nanomaterial dispersed in a commercial engine oil using two different approaches; the use of surfactant and nanomaterial surface functionalization to promote higher stability and lower cluster size. Experimental evidence shows a synergetic effect between the tribological protection mechanism and the antioxidant properties in the lubricant. The effect of nanoparticle cluster size, functionalization level, and nanomaterial content are presented.
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Affiliation(s)
- Marta Hernaiz
- Fundación Tekniker, Inaki Goenaga 5, 20600 Eibar, Spain; (I.E.); (B.F.); (X.F.)
| | - Iker Elexpe
- Fundación Tekniker, Inaki Goenaga 5, 20600 Eibar, Spain; (I.E.); (B.F.); (X.F.)
| | - Estíbaliz Aranzabe
- Fundación Tekniker, Inaki Goenaga 5, 20600 Eibar, Spain; (I.E.); (B.F.); (X.F.)
| | - Beatriz Fernández
- Fundación Tekniker, Inaki Goenaga 5, 20600 Eibar, Spain; (I.E.); (B.F.); (X.F.)
| | - Xana Fernández
- Fundación Tekniker, Inaki Goenaga 5, 20600 Eibar, Spain; (I.E.); (B.F.); (X.F.)
| | - Silvia Fernández
- Repsol Technology Lab., Agustín de Betancourt S/N., 28935 Móstoles, Spain; (S.F.); (M.C.-G.)
| | - Martí Cortada-García
- Repsol Technology Lab., Agustín de Betancourt S/N., 28935 Móstoles, Spain; (S.F.); (M.C.-G.)
| | - Andrés T. Aguayo
- Department of Chemical Engineering, University of the Basque Country UPV/EHU, P.O. Box 644, 48080 Bilbao, Spain;
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3
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Wang S, Liang Z, Liu L, Wan P, Qian Q, Chen Y, Jia S, Chen D. Artificial Intelligence-Based Rapid Design of Grease with Chemically Functionalized Graphene and Carbon Nanotubes as Lubrication Additives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:647-658. [PMID: 36563178 DOI: 10.1021/acs.langmuir.2c03006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Rapid chemical functionalization of additives and efficient determination of their optimum concentrations are important for designing high-performance lubricants, especially under multi-additive conditions. Herein, chemically functionalized graphene (FGR) and carbon nanotubes (FCNTs) were rapidly prepared by microwave-assisted ball milling and subsequently introduced into grease as additives. The tribological properties of the additives in grease at different concentrations and ratios were measured using a four-ball test. A reliable artificial neural network (ANN) model was established according to a few test results. Subsequently, the optimal concentration of multiple additives in the grease was predicted using a genetic algorithm and experimentally validated. The results indicated that the introduction of FGR (0.14 wt %) and FCNT (0.16 wt %) improved the antifriction and anti-wear performance of the base grease by 25.66 and 29.34%, respectively. The results of the ANN model analysis and friction interface characterization indicate that such performance is principally attributed to the synergistic lubrication of the FGR and FCNT.
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Affiliation(s)
- Siyuan Wang
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha410082, China
| | - Zhao Liang
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha410082, China
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo315211, China
| | - Ling Liu
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha410082, China
| | - Peng Wan
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha410082, China
| | - Qihao Qian
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha410082, China
| | - Yaotong Chen
- College of Materials Science and Engineering, Hunan University, Changsha410082, China
| | - Shuo Jia
- Department of Transportation Engineering, School of Information Engineering, Chang'An University, Xian710064, China
| | - Ding Chen
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha410082, China
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ZnO NPs immobilized by Alizarin as in vitro predictive and imaging biomarkers for protein amyloidosis. J Inorg Biochem 2022; 236:111971. [PMID: 36049260 DOI: 10.1016/j.jinorgbio.2022.111971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 08/12/2022] [Accepted: 08/13/2022] [Indexed: 12/15/2022]
Abstract
Protein amyloidosis represents the main pathological hallmark of many incurable neurodegenerative disorders and protein misfolding diseases. Nanomaterials-based approaches give rise to diagnosis and/or prediction of these proteinopathies, with regards to the multifactorial nature of their pathogenesis. Herein, crystalline truncated hexagonal shaped naked ZnO nanoparticles (mean value 47.4 nm) have been solvothermally prepared and immobilized further with alizarin (Alzn) molecules (54%) to stand up to amyloidosis acting both as inhibitors and imaging agents, as well as antioxidants. Thioflavin-T (ThT) assay revealed that the resulted zinc oxide nanoparticles immobilized with alizarin (ZnO@Alzn NPs) inhibited in vitro insulin amyloids formation in a dose-dependent manner, while the kinetic mechanism of the phenomenon was recorded. In parallel, amyloid oligomers and plaques have been visualized by conventional optical microscopy upon protein co-incubation with ZnO@Alzn NPs, highlighting the imaging ability of the immobilized NPs. The antioxidant activity was monitored by 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, through which it was shown that alizarin incorporation onto the inorganic core leads to the reduction of IC50 values from 221 μg/mL to 167 μg/mL. The enhanced free radical scavenging effects of ZnO@Alzn compared to the naked-ZnO NPs, features their prospect to serve additional functions.
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Yan Y, Jin B, Zhou Q, Zhang J, Peng R. Preparation of a Chitosan-Lead Composite Carbon Aerogel and Its Catalytic Thermal Decomposition Performance on Ammonium Perchlorate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8623-8632. [PMID: 35811463 DOI: 10.1021/acs.langmuir.2c00994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Chitosan-lead (CS-Pb) carbon aerogels were prepared by ionic cross-linking and high-temperature carbonization using chitosan (CS) as the carbon precursor. The obtained carbon aerogels were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffractometry (XRD), and X-ray photoelectron spectroscopy (XPS). The obtained aerogels have a 3D structure and a large surface area, which can effectively prevent the agglomeration phenomenon of metals. Differential thermal analysis (DTA) was used to analyze the catalytic performance of a carbon aerogel for ammonium perchlorate (AP). The results showed that the CS-Pb carbon aerogel reduced the peak temperature of AP pyrolysis from 703.9 to 627.7 K. According to the Kissinger method calculations, the Ea of AP decomposition decreased about 27.2 kJ/mol. The TG data at different warming rates were analyzed by the Flynne-Walle-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS) methods, which are two of the isoconversion methods, and the activation energies of AP and AP+CS-Pb-3.5 were calculated. Between the conversion degrees (α) of 0.1 and 0.9, the Ea values obtained by the two isoconversion methods are similar and have a certain match. Also, the two isoconversion methods confirm Kissinger's calculation. Finally, thermogravimetry-mass spectrometry (TG-MS) was used to monitor the gases generated during the thermal decomposition of the AP+CS-Pb-3.5 system in real time.
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Affiliation(s)
- Yujie Yan
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Bo Jin
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Qian Zhou
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jinhao Zhang
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Rufang Peng
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
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Ge X, Cao Z, Chu L. The Antioxidant Effect of the Metal and Metal-Oxide Nanoparticles. Antioxidants (Basel) 2022; 11:antiox11040791. [PMID: 35453476 PMCID: PMC9030860 DOI: 10.3390/antiox11040791] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/29/2022] [Accepted: 04/04/2022] [Indexed: 02/04/2023] Open
Abstract
Inorganic nanoparticles, such as CeO3, TiO2 and Fe3O4 could be served as a platform for their excellent performance in antioxidant effect. They may offer the feasibility to be further developed for their smaller and controllable sizes, flexibility to be modified, relative low toxicity as well as ease of preparation. In this work, the recent progress of these nanoparticles were illustrated, and the antioxidant mechanism of the inorganic nanoparticles were introduced, which mainly included antioxidant enzyme-mimetic activity and antioxidant ROS/RNS scavenging activity. The antioxidant effects and the applications of several nanoparticles, such as CeO3, Fe3O4, TiO2 and Se, are summarized in this paper. The potential toxicity of these nanoparticles both in vitro and in vivo was well studied for the further applications. Future directions of how to utilize these inorganic nanoparticles to be further applied in some fields, such as medicine, cosmetic and functional food additives were also investigated in this paper.
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Sun Y, Huang J, He J, Tang Z, Zhu L, Liu F. Effects of a novel hindered phenol samarium complex on the thermo-oxidative aging of styrene-butadiene rubber/silica composites. Polym Degrad Stab 2021. [DOI: 10.1016/j.polymdegradstab.2021.109482] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Vyavhare K, Timmons RB, Erdemir A, Edwards BL, Aswath PB. Robust Interfacial Tribofilms by Borate- and Polymer-Coated ZnO Nanoparticles Leading to Improved Wear Protection under a Boundary Lubrication Regime. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1743-1759. [PMID: 33502870 DOI: 10.1021/acs.langmuir.0c02985] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This work reports on the development of borate- and methacrylate-polymer-coated zinc oxide nanoparticles (ZnOBM) via a plasma polymerization technique to replace the harmful conventional antiwear additive zinc dialkyl dithiophosphate (ZDDP) in automotive lubricants. Here, the tribochemistry across the interfaces formed between sliding ferrous surfaces and coated and uncoated ZnO nanoparticles is thoroughly studied from the perspective of elucidating the tribofilm formation, wear, and friction performance of a novel ZnOBM-based nanolubricant. Tribological tests conducted under a boundary lubrication regime revealed that oil formulations containing only ZnOBM nanoadditives and a mixture of ZnOBM with a low amount of ZDDP (350 ppm of P) significantly improve wear performance (up to 95%) compared to the base oil. Electrical contact resistance results acquired in situ during tribological tests demonstrated that lubricants containing ZnOBM nanoparticles at sliding interfaces undergo tribochemical reactions to form stable tribofilms that reduce friction and wear. Atomic force microscopy (AFM), X-ray absorption near-edge spectroscopy (XANES), and X-ray photoelectron spectroscopy (XPS) analysis revealed that ZnOBM nanoparticles, by themselves, form patchy interfacial tribofilms containing iron borate, boron oxide, and zinc oxide and lead to superior tribological performance. Interestingly, ZnOBM nanoparticles interact synergistically with ZDDP to form a hierarchical interface of boron-doped tribofilms, with zinc-iron polyphosphates at the surface and iron oxide, zinc and iron sulfides in the bulk. These encouraging results suggest the potential effective use of the ZnOBM nanoparticles to significantly reduce harmful levels of ZDDP (350 ppm) in the engine oil without compromising the antifriction and antiwear performance and to develop eco-friendly high-performance lubricant additives.
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Affiliation(s)
- Kimaya Vyavhare
- Materials Science and Engineering, University of Texas at Arlington, P.O. Box 19031, Arlington, Texas 76019, United States
| | - Richard B Timmons
- Chemistry and Biochemistry, University of Texas at Arlington, P.O. Box 19065, Arlington, Texas 76019, United States
| | - Ali Erdemir
- Department of Mechanical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Brian L Edwards
- Chemistry and Biochemistry, University of Texas at Arlington, P.O. Box 19065, Arlington, Texas 76019, United States
| | - Pranesh B Aswath
- Materials Science and Engineering, University of Texas at Arlington, P.O. Box 19031, Arlington, Texas 76019, United States
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de Haan M, Balakrishnan N, Kuzmyn AR, Li G, Willemen HM, Seide G, Derksen GCH, Albada B, Zuilhof H. Alizarin Grafting onto Ultrasmall ZnO Nanoparticles: Mode of Binding, Stability, and Colorant Studies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1446-1455. [PMID: 33470824 PMCID: PMC7877731 DOI: 10.1021/acs.langmuir.0c02981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/14/2020] [Indexed: 05/24/2023]
Abstract
The demand is rising for colorants that are obtained from natural resources, tolerant to industrial processing methods, and meet color quality demands. Herein, we report how relevant properties such as thermal stability and photostability of the natural colorant alizarin can be improved by grafting it onto ZnO nanoparticles (NPs), allowing application in a warm extrusion process for the fabrication of polyamide fibers. For this study, ZnO NPs (diameter 2.0 ± 0.6 nm) were synthesized and subsequently functionalized with alizarin. The alizarin-coated ZnO NPs (i.e., dyed nanoparticles, DNPs) were characterized. Thermogravimetric analysis and ultraviolet-visible (UV-vis) studies revealed that alizarin coating accounts for ∼65% (w/w) of the total mass of the DNPs. A subsequent detailed characterization with Fourier transform infrared (FT-IR), 1H nuclear magnetic resonance (NMR), 13C cross-polarization magic angle spinning (CP-MAS) NMR, X-ray photoelectron spectroscopy (XPS), and quantum chemistry studies using various density functional theory (DFT) functionals and basis sets indicated that binding onto the ZnO NPs occurred predominantly via the catechol moiety of alizarin. Importantly, this grafting increased the thermal stability of alizarin with >100 °C, which allowed the processing of the DNPs into polyamide fibers by warm extrusion at 260 °C. Evaluation of the lightfastness of the DNP-dyed nylon fibers revealed that the changes in color quantified via the distance metric ΔE* of alizarin when embedded in a hybrid material were 2.6-fold better compared to nylon fibers that were directly dyed with alizarin. This reveals that the process of immobilization of a natural dye onto ZnO nanoparticles indeed improves the dye properties significantly and opens the way for a wide range of further studies into surface-immobilized dyes.
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Affiliation(s)
- Michel
P. de Haan
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
- Research
Group Biobased Products, Avans University
of Applied Sciences, Lovensdijkstraat 61, 4818 AJ Breda, the Netherlands
| | - Naveen Balakrishnan
- Aachen-Maastricht
Institute for Biobased Materials, Maastricht
University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Geleen, the Netherlands
| | - Andriy R. Kuzmyn
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Guanna Li
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
- Biobased
Chemistry and Technology, Wageningen University
& Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - Hendra M. Willemen
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Gunnar Seide
- Aachen-Maastricht
Institute for Biobased Materials, Maastricht
University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Geleen, the Netherlands
| | - Goverdina C. H. Derksen
- Research
Group Biobased Products, Avans University
of Applied Sciences, Lovensdijkstraat 61, 4818 AJ Breda, the Netherlands
| | - Bauke Albada
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Han Zuilhof
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
- School
of Pharmaceutical Sciences and Technology, Tianjin University, 92 Weijin Road, 300072 Tianjin, China
- Department
of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
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10
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Study on the mechanisms of the lubricating oil antioxidants: Experimental and molecular simulation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115099] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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