51
|
Qi H, Zhang C, Guo H, Zheng W, Yang J, Zhou X, Zhang L. Bioinspired Multifunctional Protein Coating for Antifogging, Self-Cleaning, and Antimicrobial Properties. ACS APPLIED MATERIALS & INTERFACES 2019; 11:24504-24511. [PMID: 31257848 DOI: 10.1021/acsami.9b03522] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A multifunctional coating with antifogging, self-cleaning, and antimicrobial properties has been prepared based on a mussel-inspired chimeric protein MP-KE, which is the first example that these proteins were successfully applied to fabricate antifogging surfaces. The coating exhibits super hydrophilic properties, as indicated by contact angles less than 5° and high light transmittance similar to bare glass substrates about 90%. The zwitterionic peptides of MP-KE empower water molecules to expand into thin hydrated films rapidly, providing the protein coating with diverse surface functions. Moreover, the coatings have excellent stability and a convenient preparation process because of the mussel adhesive motif of MP-KE which makes the coating anchor onto the surface strongly. As a protein material, this multifunctional coating possesses remarkable biocompatibility and has a potential application prospects in the biomedical and pharmaceutical fields.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Lei Zhang
- Qingdao Institute for Marine Technology of Tianjin University , Qingdao 266235 , P.R. China
| |
Collapse
|
52
|
Chae H, Kim I. Enhancement in permeability of piperazine‐based thin‐film composite membrane via surface roughening using a highly organic‐soluble additive. J Appl Polym Sci 2019. [DOI: 10.1002/app.47913] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hee‐Ro Chae
- Center for Membrane, Advanced Green Chemical Materials DivisionKorea Research Institute of Chemical Technology Daejeon 34114 Republic of Korea
| | - In‐Chul Kim
- Center for Membrane, Advanced Green Chemical Materials DivisionKorea Research Institute of Chemical Technology Daejeon 34114 Republic of Korea
| |
Collapse
|
53
|
Duong PHH, Daumann K, Hong PY, Ulbricht M, Nunes SP. Interfacial Polymerization of Zwitterionic Building Blocks for High-Flux Nanofiltration Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1284-1293. [PMID: 29983069 DOI: 10.1021/acs.langmuir.8b00960] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A simple scalable strategy is proposed to fabricate highly permeable antifouling nanofiltration membranes. Membranes with a selective thin polyamide layer were prepared via interfacial polymerization incorporating building blocks of zwitterionic copolymers. The zwitterionic copolymer, poly(aminopropyldimethylaminoethyl methacrylate)- co-poly(sulfobetaine methacrylate) with an average molecular weight of 6.1 kg mol-1, was synthesized in three steps: (i) polymerization of dimethylaminoethyl methacrylate to yield the base polymer by atom transfer radical polymerization (ATRP), (ii) fractional sulfobetainization via quaternization, and (iii) amination via quaternization. The effect of the zwitterionic polymer content on the polyamide surface characteristics, fouling resistance, and permeance is demonstrated. The zwitterion-modified membrane becomes more hydrophilic with lower surface roughness, as the zwitterionic polymer fraction increases. The excellent fouling resistance of the zwitterion-modified membrane was confirmed by the negligible protein adsorption and low bacteria fouling compared to a pristine membrane without zwitterionic segments. In addition, the zwitterion-modified membranes achieve a water permeation around 135 L m-2 h-1bar-1, which is 27-fold higher than that of the pristine membrane, along with good selectivity in the nanofiltration range, confirmed by the rejection of organic dyes. This permeance is about 10 times higher than that of other reported loose nanofiltration membranes with comparable dye rejection. The newly designed membrane is promising as a highly permeable fouling resistant cross-linked polyamide network for various water treatment applications.
Collapse
Affiliation(s)
| | - Kevin Daumann
- Lehrstuhl für Technische Chemie II , Universität Duisburg-Essen , 45117 Essen , Germany
| | | | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II , Universität Duisburg-Essen , 45117 Essen , Germany
| | | |
Collapse
|
54
|
Preparation of Layer-by-Layer Nanofiltration Membranes by Dynamic Deposition and Crosslinking. MEMBRANES 2019; 9:membranes9020020. [PMID: 30682860 PMCID: PMC6410208 DOI: 10.3390/membranes9020020] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/09/2019] [Accepted: 01/11/2019] [Indexed: 11/17/2022]
Abstract
In recent decades, the advancements in layer-by-layer (LBL) assembly technology have provoked increasing interest in the preparation of multilayer polyelectrolyte membranes with excellent performance. In the current study, a novel nanofiltration (NF) membrane was prepared by pressure-driven layer-by-layer (LBL) assembly of polyethylenimine (PEI) and polyacrylicacid (PAA) on a porous substrate with chemical crosslinking. The effect of deposition pressure on separation performance of the prepared membranes was studied. The surface morphology, hydrophilicity and the charge property of the dynamically-deposited membranes were compared with those prepared by static adsorption. The characterization results showed that dynamic deposition process resulted in a smoother membrane surface with improved hydrophilicity. The mechanism of water-path formation was proposed to interpret the effect of pressure on the membrane performance. Glutaraldehyde (GA) was used as a crosslinker to reduce the number of polyelectrolyte bilayers for obtaining good separation performance. The rejections of different inorganic salts of the dynamically-deposited NF membrane were also investigated.
Collapse
|
55
|
Qi Y, Zhu L, Gao C, Shen J. A novel nanofiltration membrane with simultaneously enhanced antifouling and antibacterial properties. RSC Adv 2019; 9:6107-6117. [PMID: 35517273 PMCID: PMC9060863 DOI: 10.1039/c8ra09875a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 02/02/2019] [Indexed: 12/17/2022] Open
Abstract
A novel nanofiltration membrane is prepared by using polydopamine (PDA) and hydroxyl propyl trimethyl ammonium chloride chitosan (HACC) mixed with chitosan (CN) and chelated silver (Ag) nanoparticles.
Collapse
Affiliation(s)
- Yawei Qi
- Center for Membrane Separation and Water Science & Technology
- Ocean College
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Lifang Zhu
- Center for Membrane Separation and Water Science & Technology
- Ocean College
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Congjie Gao
- Center for Membrane Separation and Water Science & Technology
- Ocean College
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Jiangnan Shen
- Center for Membrane Separation and Water Science & Technology
- Ocean College
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| |
Collapse
|
56
|
Sathyan A, Hayward RC, Emrick T. Ring-Opening Polymerization of Allyl-Functionalized Lactams. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b02148] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Ashlin Sathyan
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Ryan C. Hayward
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Todd Emrick
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| |
Collapse
|
57
|
Guo YS, Mi YF, Zhao FY, Ji YL, An QF, Gao CJ. Zwitterions functionalized multi-walled carbon nanotubes/polyamide hybrid nanofiltration membranes for monovalent/divalent salts separation. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.05.048] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
58
|
Ji YL, Qian WJ, An QF, Lee KR, Gao CJ. Polyelectrolyte nanoparticles based thin-film nanocomposite (TFN) membranes for amino acids separation. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.05.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
|
59
|
Paredes-Laverde M, Silva-Agredo J, Torres-Palma RA. Removal of norfloxacin in deionized, municipal water and urine using rice (Oryza sativa) and coffee (Coffea arabica) husk wastes as natural adsorbents. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 213:98-108. [PMID: 29482094 DOI: 10.1016/j.jenvman.2018.02.047] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 02/11/2018] [Accepted: 02/13/2018] [Indexed: 06/08/2023]
Abstract
The removal of the widely used antibiotic norfloxacin (NOR), the presence of which has been reported in natural water, was evaluated using rice (RH) and coffee (CH) husk wastes as adsorbents. Low particle sizes and natural pH in distilled water favored NOR elimination in both materials. In order to investigate the type of adsorption, the data was adjusted to the Langmuir, Freundlich and Redlich-Peterson isotherms. The best fit for the Langmuir and Redlich-Peterson isotherms suggested a monolayer-type adsorption model. Kinetic models of pseudo first and second order were also evaluated, the latter being the most suitable to represent the NOR adsorption phenomenon. Meanwhile, the intraparticle diffusion model indicated that the adsorption of NOR occurs both at the surface and within the pores of the material. Studies performed on thermodynamic aspects such as activation energy (Ea), enthalpy change (ΔH˚) and Gibbs free energy change (ΔG˚) suggest that the physisorption of the pollutant takes place through a spontaneous endothermic process. Additionally, PZC determination, Boehm method, chemical composition, thermodynamic analysis, and FTIR spectra before and after the adsorption of the antibiotic suggest that in CH adsorbents this occurred mainly through electrostatic interactions, while in RH hydrogen bonds also contributed significantly. Finally, the efficiency of natural adsorbents for the removal of NOR was evaluated in synthetic matrices of municipal wastewater and urine, and promising results were obtained despite the complexity of these matrices. The results presented in this work show the potential application of RH and CH residues as a low-cost alternative for the removal of NOR even in complex matrices. However, despite the similarities between the materials, CH waste showed better properties for the removal of the tested NOR due to its higher surface area, lower PZC and higher number of acid groups.
Collapse
Affiliation(s)
- Marcela Paredes-Laverde
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Javier Silva-Agredo
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Ricardo A Torres-Palma
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
| |
Collapse
|
60
|
|
61
|
Song W, Li Z, Li Y, You H, Qi P, Liu F, Loy DA. Facile sol-gel coating process for anti-biofouling modification of poly (vinylidene fluoride) microfiltration membrane based on novel zwitterionic organosilica. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.12.076] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
62
|
Zhu J, Hou J, Zhang Y, Tian M, He T, Liu J, Chen V. Polymeric antimicrobial membranes enabled by nanomaterials for water treatment. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.12.071] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
63
|
Chen LY, Lin XH, Gai JG. Polyethylenimine Linked Glycidol Surface Antifouling Reverse Osmosis Membrane. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04799] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Li-Ye Chen
- State Key Laboratory of Polymer Materials
Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Xiao-Hong Lin
- State Key Laboratory of Polymer Materials
Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| | - Jing-Gang Gai
- State Key Laboratory of Polymer Materials
Engineering, Polymer Research Institute of Sichuan University, Chengdu, Sichuan 610065, China
| |
Collapse
|
64
|
Ji YL, An QF, Weng XD, Hung WS, Lee KR, Gao CJ. Microstructure and performance of zwitterionic polymeric nanoparticle/polyamide thin-film nanocomposite membranes for salts/organics separation. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.11.057] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
65
|
Pan Z, Cheng F, Zhao B. Bio-Inspired Polymeric Structures with Special Wettability and Their Applications: An Overview. Polymers (Basel) 2017; 9:E725. [PMID: 30966026 PMCID: PMC6418807 DOI: 10.3390/polym9120725] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/08/2017] [Accepted: 12/14/2017] [Indexed: 12/15/2022] Open
Abstract
It is not unusual for humans to be inspired by natural phenomena to develop new advanced materials; such materials are called bio-inspired materials. Interest in bio-inspired polymeric superhydrophilic, superhydrophobic, and superoleophobic materials has substantially increased over the last few decades, as has improvement in the related technologies. This review reports the latest developments in bio-inspired polymeric structures with desired wettability that have occurred by mimicking the structures of lotus leaf, rose petals, and the wings and shells of various creatures. The intrinsic role of surface chemistry and structure on delivering superhydrophilicity, superhydrophobicity, and superoleophobicity has been extensively explored. Typical polymers, commonly used structures, and techniques involved in developing bio-inspired surfaces with desired wettability are discussed. Additionally, the latest applications of bio-inspired structures with desired wettability in human activities are also introduced.
Collapse
Affiliation(s)
- Zihe Pan
- Institute of Resources and Environmental Engineering, Shanxi University, 92 Wucheng Road, Xiaodian District, Taiyuan 030006, Shanxi, China.
- Shanxi Collaborative Innovation Center of High Value-Added Utilization of Coal-Related Wastes, Taiyuan 030006, Shanxi, China.
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
| | - Fangqin Cheng
- Institute of Resources and Environmental Engineering, Shanxi University, 92 Wucheng Road, Xiaodian District, Taiyuan 030006, Shanxi, China.
- Shanxi Collaborative Innovation Center of High Value-Added Utilization of Coal-Related Wastes, Taiyuan 030006, Shanxi, China.
| | - Boxin Zhao
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
| |
Collapse
|
66
|
Ji YL, Gu BX, An QF, Gao CJ. Recent Advances in the Fabrication of Membranes Containing "Ion Pairs" for Nanofiltration Processes. Polymers (Basel) 2017; 9:polym9120715. [PMID: 30966015 PMCID: PMC6418565 DOI: 10.3390/polym9120715] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 12/09/2017] [Accepted: 12/10/2017] [Indexed: 11/17/2022] Open
Abstract
In the face of serious environmental pollution and water scarcity problems, the membrane separation technique, especially high efficiency, low energy consumption, and environmental friendly nanofiltration, has been quickly developed. Separation membranes with high permeability, good selectivity, and strong antifouling properties are critical for water treatment and green chemical processing. In recent years, researchers have paid more and more attention to the development of high performance nanofiltration membranes containing “ion pairs”. In this review, the effects of “ion pairs” characteristics, such as the super-hydrophilicity, controllable charge character, and antifouling property, on nanofiltration performances are discussed. A systematic survey was carried out on the various approaches and multiple regulation factors in the fabrication of polyelectrolyte complex membranes, zwitterionic membranes, and charged mosaic membranes, respectively. The mass transport behavior and antifouling mechanism of the membranes with “ion pairs” are also discussed. Finally, we present a brief perspective on the future development of advanced nanofiltration membranes with “ion pairs”.
Collapse
Affiliation(s)
- Yan-Li Ji
- Center for Membrane and Water Science & Technology, Ocean College, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Bing-Xin Gu
- Center for Membrane and Water Science & Technology, Ocean College, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Quan-Fu An
- Beijing Key Laboratory for Green Catalysis and Separation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Cong-Jie Gao
- Center for Membrane and Water Science & Technology, Ocean College, Zhejiang University of Technology, Hangzhou 310014, China.
| |
Collapse
|
67
|
Zhang R, Yu S, Shi W, Wang W, Wang X, Zhang Z, Li L, Zhang B, Bao X. A novel polyesteramide thin film composite nanofiltration membrane prepared by interfacial polymerization of serinol and trimesoyl chloride (TMC) catalyzed by 4‑dimethylaminopyridine (DMAP). J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.07.054] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
68
|
|
69
|
Huang YW, Wang ZM, Yan X, Chen J, Guo YJ, Lang WZ. Versatile polyvinylidene fluoride hybrid ultrafiltration membranes with superior antifouling, antibacterial and self-cleaning properties for water treatment. J Colloid Interface Sci 2017; 505:38-48. [DOI: 10.1016/j.jcis.2017.05.076] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 05/23/2017] [Accepted: 05/23/2017] [Indexed: 11/15/2022]
|
70
|
Mu K, Zhang D, Shao Z, Qin D, Wang Y, Wang S. Enhanced permeability and antifouling performance of cellulose acetate ultrafiltration membrane assisted by l-DOPA functionalized halloysite nanotubes. Carbohydr Polym 2017; 174:688-696. [PMID: 28821120 DOI: 10.1016/j.carbpol.2017.06.089] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 06/12/2017] [Accepted: 06/21/2017] [Indexed: 01/08/2023]
Abstract
l-Dopa functionalized halloysite nanotubes (HNTs) were prepared by the self-polymerization of l-dopa in the weak alkaline condition. Then different contents of l-dopa coated HNTs (LPDHNTs) were blended into cellulose acetate to prepare enhanced performance ultrafiltration membranes via the phase inversion method. The HNTs and LPDHNTs were characterized by FTIR, XPS, and TEM anysis. And the membranes morphologies, separation performance, antifouling performance, mechanical properties and hydrophilicity were also investigated. It was found that the composite membranes exhibited excellent antifouling performance. The pure water flux of 3.0wt% LPDHNTs/CA membrane increased from 11.4Lm-2h-1 to 92.9Lm-2h-1, while the EA rejection ratio of the membrane was about 91.2%. In addition, the mechanical properties of the resultant membranes were strengthened compared with the CA ultrafiltration membrane.
Collapse
Affiliation(s)
- Keguang Mu
- Department of Materials Science and Engineering, Beijing Institute of Technology, Beijing Engineering Research Center of Cellulose and Its Derivatives, Beijing 100081, China
| | - Dalun Zhang
- Department of Materials Science and Engineering, Beijing Institute of Technology, Beijing Engineering Research Center of Cellulose and Its Derivatives, Beijing 100081, China.
| | - Ziqiang Shao
- Department of Materials Science and Engineering, Beijing Institute of Technology, Beijing Engineering Research Center of Cellulose and Its Derivatives, Beijing 100081, China
| | - Dujian Qin
- Department of Materials Science and Engineering, Beijing Institute of Technology, Beijing Engineering Research Center of Cellulose and Its Derivatives, Beijing 100081, China
| | - Yalong Wang
- Department of Materials Science and Engineering, Beijing Institute of Technology, Beijing Engineering Research Center of Cellulose and Its Derivatives, Beijing 100081, China
| | - Shuo Wang
- Department of Materials Science and Engineering, Beijing Institute of Technology, Beijing Engineering Research Center of Cellulose and Its Derivatives, Beijing 100081, China
| |
Collapse
|
71
|
Otitoju T, Ahmad A, Ooi B. Superhydrophilic (superwetting) surfaces: A review on fabrication and application. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.12.016] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
72
|
Liu C, Faria AF, Ma J, Elimelech M. Mitigation of Biofilm Development on Thin-Film Composite Membranes Functionalized with Zwitterionic Polymers and Silver Nanoparticles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:182-191. [PMID: 27976869 DOI: 10.1021/acs.est.6b03795] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
We demonstrate the functionalization of thin-film composite membranes with zwitterionic polymers and silver nanoparticles (AgNPs) for combating biofouling. Combining hydrophilic zwitterionic polymer brushes and biocidal AgNPs endows the membrane with dual functionality: antiadhesion and bacterial inactivation. An atom transfer radical polymerization (ATRP) reaction is used to graft zwitterionic poly(sulfobetaine methacrylate) (PSBMA) brushes to the membrane surface, while AgNPs are synthesized in situ through chemical reduction of silver. Two different membrane architectures (Ag-PSBMA and PSBMA-Ag TFC) are developed according to the sequence AgNPs, and PSBMA brushes are grafted on the membrane surface. A static adhesion assay shows that both modified membranes significantly reduced the adsorption of proteins, which served as a model organic foulant. However, improved antimicrobial activity is observed for PSBMA-Ag TFC (i.e., AgNPs on top of the polymer brush) in comparison to the Ag-PSBMA TFC membrane (i.e., polymer brush on top of AgNPs), indicating that architecture of the antifouling layer is an important factor in the design of zwitterion-silver membranes. Confocal laser scanning microscopy (CLSM) imaging indicated that PSBMA-Ag TFC membranes effectively inhibit biofilm formation under dynamic cross-flow membrane biofouling tests. Finally, we demonstrate the regeneration of AgNPs on the membrane after depletion of silver from the surface of the PSBMA-Ag TFC membrane.
Collapse
Affiliation(s)
- Caihong Liu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology , Harbin 150090, China
| | | | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology , Harbin 150090, China
| | | |
Collapse
|
73
|
Weng XD, Bao XJ, Jiang HD, Chen L, Ji YL, An QF, Gao CJ. pH-responsive nanofiltration membranes containing carboxybetaine with tunable ion selectivity for charge-based separations. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.08.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|