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Xia Z, Rozyyev V, Mane AU, Elam JW, Darling SB. Surface Zeta Potential of ALD-Grown Metal-Oxide Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11618-11624. [PMID: 34554756 DOI: 10.1021/acs.langmuir.1c02028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Membranes are among the most promising technologies for energy-efficient and highly selective separations, and the surface-charge property of membranes plays a critical role in their broad applications. Atomic layer deposition (ALD) can deposit materials uniformly and with high precision and controllability on arbitrarily complex and large substrates, which renders it a promising method to tune the electrostatics of water/solid interfaces. However, a systematic study of surface-charge properties of ALD-grown films in aqueous environments is still lacking. In this work, 17 ALD-grown metal-oxide films are synthesized, and a comprehensive study of their water stability, wetting properties, and surface-charge properties is provided. This work represents a resource guide for researchers and ultimately for materials and process engineers, seeking to tailor interfacial charge properties of membranes and other porous water treatment components.
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Affiliation(s)
- Zijing Xia
- Chemical Sciences and Engineering Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Advanced Materials for Energy-Water Systems Energy Frontier Research Center, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Vepa Rozyyev
- Advanced Materials for Energy-Water Systems Energy Frontier Research Center, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
- Applied Materials Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Anil U Mane
- Applied Materials Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Jeffrey W Elam
- Advanced Materials for Energy-Water Systems Energy Frontier Research Center, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
- Applied Materials Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Seth B Darling
- Chemical Sciences and Engineering Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Advanced Materials for Energy-Water Systems Energy Frontier Research Center, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
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Li J, Jiang M, Zhou H, Jin P, Cheung KMC, Chu PK, Yeung KWK. Vanadium Dioxide Nanocoating Induces Tumor Cell Death through Mitochondrial Electron Transport Chain Interruption. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1800058. [PMID: 31565366 PMCID: PMC6436600 DOI: 10.1002/gch2.201800058] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 11/17/2018] [Indexed: 05/02/2023]
Abstract
A biomaterials surface enabling the induction of tumor cell death is particularly desirable for implantable biomedical devices that directly contact tumor tissues. However, this specific antitumor feature is rarely found. Consequently, an antitumor-cell nanocoating comprised of vanadium dioxide (VO2) prepared by customized reactive magnetron sputtering has been proposed, and its antitumor-growth capability has been demonstrated using human cholangiocarcinoma cells. The results reveal that the VO2 nanocoating is able to interrupt the mitochondrial electron transport chain and then elevate the intracellular reactive oxygen species levels, leading to the collapse of the mitochondrial membrane potential and the destruction of cell redox homeostasis. Indeed, this chain reaction can effectively trigger oxidative damage in the cholangiocarcinoma cells. Additionally, this study has provided new insights into designing a tumor-cell-inhibited biomaterial surface, which is modulated by the mechanism of mitochondria-targeting tumor cell death.
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Affiliation(s)
- Jinhua Li
- Department of Orthopaedics and TraumatologyLi Ka Shing Faculty of MedicineThe University of Hong KongPokfulamHong Kong999077China
- Department of Physics and Department of Materials Science and EngineeringCity University of Hong KongTat Chee AvenueKowloonHong Kong999077China
- Centre for Translational BoneJoint and Soft Tissue ResearchUniversity Hospital Carl Gustav Carus and Faculty of MedicineTechnische Universität DresdenDresden01307Germany
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic TraumaDepartment of Orthopaedics and TraumatologyThe University of Hong Kong‐Shenzhen HospitalShenzhen518053China
| | - Meng Jiang
- College of Medical ImagingShanghai University of Medicine and Health SciencesShanghai201318China
| | - Huaijuan Zhou
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China
| | - Ping Jin
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China
| | - Kenneth M. C. Cheung
- Department of Orthopaedics and TraumatologyLi Ka Shing Faculty of MedicineThe University of Hong KongPokfulamHong Kong999077China
| | - Paul K. Chu
- Department of Physics and Department of Materials Science and EngineeringCity University of Hong KongTat Chee AvenueKowloonHong Kong999077China
| | - Kelvin W. K. Yeung
- Department of Orthopaedics and TraumatologyLi Ka Shing Faculty of MedicineThe University of Hong KongPokfulamHong Kong999077China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic TraumaDepartment of Orthopaedics and TraumatologyThe University of Hong Kong‐Shenzhen HospitalShenzhen518053China
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Kosmulski M. Isoelectric points and points of zero charge of metal (hydr)oxides: 50years after Parks' review. Adv Colloid Interface Sci 2016; 238:1-61. [PMID: 27890403 DOI: 10.1016/j.cis.2016.10.005] [Citation(s) in RCA: 184] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 10/27/2016] [Accepted: 10/28/2016] [Indexed: 02/06/2023]
Abstract
The pH-dependent surface charging of metal (hydr)oxides is reviewed on the occasion of the 50th anniversary of the publication by G.A. Parks: "Isoelectric points of solid oxides, solid hydroxides, and aqueous hydroxo complex systems" in Chemical Reviews. The point of zero charge (PZC) and isoelectric point (IEP) became standard parameters to characterize metal oxides in aqueous dispersions, and they define adsorption (surface excess) of ions, stability against coagulation, rheological properties of dispersions, etc. They are commonly used in many branches of science including mineral processing, soil science, materials science, geochemistry, environmental engineering, and corrosion science. Parks established standard procedures and experimental conditions which are required to obtain reliable and reproducible values of PZC and IEP. The field is very active, and the number of related papers exceeds 300 a year, and the standards established by Parks remain still valid. Relevant experimental techniques improved over the years, especially the measurements of electrophoretic mobility became easier and more reliable, are the numerical values of PZC and IEP compiled by Parks were confirmed by contemporary publications with a few exceptions. The present paper is an up-to-date compilation of the values of PZC and IEP of metal oxides. Unlike in former reviews by the same author, which were more comprehensive, only limited number of selected results are presented and discussed here. On top of the results obtained by means of classical methods (titration and electrokinetic methods), new methods and correlations found over the recent 50years are presented.
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Hao L, Lawrence J. The adsorption of human serum albumin (HSA) on CO2 laser modified magnesia partially stabilised zirconia (MgO-PSZ). Colloids Surf B Biointerfaces 2004; 34:87-94. [PMID: 15261078 DOI: 10.1016/j.colsurfb.2003.12.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2003] [Revised: 10/06/2003] [Accepted: 12/07/2003] [Indexed: 11/19/2022]
Abstract
Magnesia partially stabilised zirconia (MgO-PSZ), a bioinert ceramic, exhibits high mechanical strength, excellent corrosion resistance and good biocompatibility, but it does not naturally form a direct bond with bone resulting in a lack of osteointegration. The surface properties and structure of a biomaterial play an essential role in protein adsorption. As such, changes in the surface properties and structure of biomaterials may in turn alter their bioactivity. So, the fundamental reactions at the interface of biomaterials and tissue should influence their integration and bone-bonding properties. To this end, CO2 laser radiation was used to modify the surface roughness, crystal size, phase and surface energy of the MgO-PSZ. The basic mechanisms active in improving the surface energy were analysed and found to be the phase change and augmented surface area. The adsorption of human serum albumin (HSA), which is a non-cell adhesive protein, was compared on the untreated and CO2 laser modified MgO-PSZ. It was observed that the thickness of the adsorbed HSA decreased as the polar surface energy of the MgO-PSZ increased, indicating that HSA adsorbed more effectively on the hydrophobic MgO-PSZ surface than the hydrophilic surface. The current study provided important information regarding protein-biomaterial interactions and possible mechanisms behind the cell interaction and in vivo behaviour.
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Affiliation(s)
- L Hao
- Materials A Laboratory N3.1-B2-02, Manufacturing Engineering Division, School of Mechanical and Production Engineering, Nanyang Technological University (NTU), Nanyang Avenue, Singapore 639798, Singapore.
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Rovira-Bru M, Giralt F, Cohen Y. Protein Adsorption onto Zirconia Modified with Terminally Grafted Polyvinylpyrrolidone. J Colloid Interface Sci 2001; 235:70-79. [PMID: 11237444 DOI: 10.1006/jcis.2000.7355] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The potential effectiveness of poly(vinyl pyrrolidone) (PVP) as a zirconia surface modifier for protein adsorption reduction was investigated using lysozyme (LYS). The relatively small size of LYS (45 x 30 x 30 Å) allowed for testing the adequacy of the graft polymerization method for producing a dense surface chain coverage to exclude LYS from direct interaction with the zirconia surface. The study demonstrated that a PVP brush layer is capable of reducing lysozyme adsorption. Overall, the maximum adsorption capacity decreased (by up to about 76%) due to surface modification with increasing polymer/silane surface coverage ratio (mol/mol). Adsorption reduction, due to protein exclusion from the surface by the tethered polymer layer, increased significantly when the distance between surface chains was less than the large axis of LYS (i.e., 45 Å). The present results are encouraging and suggest further consideration of polymer-modified ceramic surfaces for reducing fouling of ceramic membranes during protein ultrafiltration and producing ceramic biocompatible surfaces for biomedical applications. Copyright 2001 Academic Press.
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Affiliation(s)
- Montserrat Rovira-Bru
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, Tarragona, Catalunya, Spain
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Belhocine D, Grib H, Abdessmed D, Comeau Y, Mameri N. Optimization of plasma proteins concentration by ultrafiltration. J Memb Sci 1998. [DOI: 10.1016/s0376-7388(97)00303-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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