1
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Spray coating of polysulfone/poly(ethylene glycol) block polymer on macroporous substrates followed by selective swelling for composite ultrafiltration membranes. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.05.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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2
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Qin L, Gao M, Zhang M, Feng L, Liu Q, Zhang G. Application of encapsulated algae into MBR for high-ammonia nitrogen wastewater treatment and biofouling control. WATER RESEARCH 2020; 187:116430. [PMID: 33011566 DOI: 10.1016/j.watres.2020.116430] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 09/04/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
Low microbial activity and serious membrane biofouling are still critical problems that hinder the extensive application of membrane bioreactor (MBR) for industrial wastewater treatment. To address these bottlenecks, we report a new specialized microorganism encapsulation strategy for constructing a highly efficient MBR system. In our study, the algae-entrapping fiber macrospheres with polymeric coating were first coupled with membrane separation for treating refractory high-ammonia nitrogen wastewater. In comparison with traditional alginate beads, the developed macrocapsule (~0.5 cm) exhibited higher biomass harvesting and lower microbial leakage because of the confined micro-aerobic environment created by dual encapsulation of rigid inorganic macrosphere and porous polymeric layers. Application of algae-encapsulating macrocapsule to MBR presented excellent chemical oxygen demand (COD) and ammonia nitrogen (NH3-N) removal efficiency of 62.23 and 97.38 %, respectively, which were higher than the corresponding values for algae/SA beads and free algae. The biodegradation performance of NH3-N by encapsulated microalgae was similar or superior to that by free cells when the initial content of ammonia nitrogen ranged from 50 to 100 mg/L. The results well demonstrated that the GFS@polymer macrocapsule as a physical barrier reduced the inhibitory effect of higher concentration ammonia nitrogen on the bioactivity of living cells. Importantly, the encapsulated core-shell macrocapsules showed superior anti-biofouling capacity, which had a membrane resistance of 3-5 times lower than that of cell/alginate beads and free cells. This work will open a new avenue to develop a novel encapsulated MBR for various non-degradable wastewater treatments as an energy-saving and sustainable way.
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Affiliation(s)
- Lei Qin
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, P.R. China.
| | - Mingzhen Gao
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Mengyuan Zhang
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Lihua Feng
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Qiuhua Liu
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Guoliang Zhang
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, P.R. China.
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3
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Shen C, Bian L, Zhang P, An B, Cui Z, Wang H, Li J. Microstructure evolution of bonded water layer and morphology of grafting membrane with different polyethylene glycol length and their influence on permeability and anti-fouling capacity. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.117949] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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4
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Ma S, Lin L, Wang Q, Zhang Y, Zhang H, Gao Y, Xu L, Pan F, Zhang Y. Bioinspired EVAL membrane modified with cilia-like structures showing simultaneously enhanced permeability and antifouling properties. Colloids Surf B Biointerfaces 2019; 181:134-142. [PMID: 31128513 DOI: 10.1016/j.colsurfb.2019.05.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 05/10/2019] [Accepted: 05/12/2019] [Indexed: 01/05/2023]
Abstract
A simple and effective strategy to simultaneously enhance the permeability and antifouling properties of ethylene vinyl alcohol (EVAL) membrane was developed based on the bioinspired natural cleaner, cilia. Taking clue from the self-cleaning effect of cilia, supramolecular polyrotaxanes (PRs) with sliding and rotating cyclic molecules along linear chains were synthesized using azide-alkyne click chemistry. Cilia-like PRs were incorporated into EVAL matrix in the fabrication of modified EVAL membranes. Cilia-like structures protruding from the membrane surface have been observed by SEM, TEM and AFM. By imitating natural ciliary movements, these structures provided a proactive self-cleaning system to remove the foulants. The introduction of cilia-like PRs enhanced the surface roughness and hydrophilicity, and significantly enhanced permeability by 55.3% compared to raw EVAL membrane. Moreover, the membrane modified with cilia-like PRs showed an excellent antifouling property with a lower water flux decline (12.6%) and higher water flux recovery (94%) in dynamic fouling tests. Furthermore, this modified membrane develops the scope of bioinspired membranes, inspiring more attractive potential applications in self-cleaning materials, dynamic membranes and supramolecular machines.
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Affiliation(s)
- Sisi Ma
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, PR China
| | - Ligang Lin
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, PR China.
| | - Qi Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, PR China
| | - Yuhui Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, PR China
| | - Honglei Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, PR China
| | - Yixin Gao
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, PR China
| | - Lin Xu
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, PR China
| | - Fusheng Pan
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, PR China
| | - Yuzhong Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, PR China
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5
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Zhao L, Zhang C, Bao M, Lu J. Advanced treatment for actual hydrolyzed polyacrylamide-containing wastewater in a biofilm/activated sludge membrane bioreactor system: Biodegradation and interception. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2018.10.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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6
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Verma SK, Modi A, Singh AK, Teotia R, Kadam S, Bellare J. Functionally coated polyethersulfone hollow fiber membranes: A substrate for enhanced HepG2/C3A functions. Colloids Surf B Biointerfaces 2018; 164:358-369. [DOI: 10.1016/j.colsurfb.2018.01.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 12/11/2017] [Accepted: 01/20/2018] [Indexed: 01/04/2023]
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7
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Strengthening of polysulfone membranes using hybrid mixtures of micro- and nano-scale modifiers. Front Chem Sci Eng 2017. [DOI: 10.1007/s11705-017-1670-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Ng LY, Ahmad A, Mohammad AW. Alteration of polyethersulphone membranes through UV-induced modification using various materials: A brief review. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.07.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Qin L, Liu Q, Meng Q, Fan Z, He J, Liu T, Shen C, Zhang G. Anoxic oscillating MBR for photosynthetic bacteria harvesting and high salinity wastewater treatment. BIORESOURCE TECHNOLOGY 2017; 224:69-77. [PMID: 28341096 DOI: 10.1016/j.biortech.2016.10.067] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 10/20/2016] [Accepted: 10/23/2016] [Indexed: 06/06/2023]
Abstract
In this study, photosynthetic bacteria (PSB) were first harvested by MBR with pendulum type oscillation (PTO) hollow fiber module in succession and on a large scale. Based on unique properties of PSB, PSB/MBR was successfully applied for high-salinity wastewater treatment. Compared with control PSB-MBR (CMBR), PSB/PTO-MBR exhibited more excellent organics removal, which was mainly attributed to much higher biomass production for utilization. Meanwhile, the influence of light irradiation and aeration on activity of PSB was investigated in detail. Results showed that PTO-MBR with 12h light irradiation proved to be a promising and economical alternative. The cycle of dark/light and anoxic had a positive effect on PSB cultivating. Moreover, PTO-MBR exhibited much higher flux than CMBR even if large amounts of biomass existed, which demonstrated that the strong shear stress on interface of liquid-membrane played important roles on membrane fouling reduction.
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Affiliation(s)
- Lei Qin
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Qiuhua Liu
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Qin Meng
- Department of Chemical and Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Zheng Fan
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Jinzhe He
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Tao Liu
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Chong Shen
- Department of Chemical and Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Guoliang Zhang
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, PR China.
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10
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Kamal O, Eljaddi T, Atmani EHEL, Touarssi I, Lebrun L, Hlaïbi M. Grafted polymer membranes with extractive agents for the extraction process of VO2+ions. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3955] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Oussama Kamal
- Laboratoire Génie des Matériaux pour l'Environnement et la valorisation (GeMEV); Université Hassan II, Faculté des Sciences Aïn Chock; B.P. 5366, Maârif Casablanca Morocco
- Laboratoire Polymeres, Biopolymeres, Surfaces, UMR 6270 du CNRS; Universite de Rouen, Faculté des Sciences; F-76821 Mont-Saint-Aignan France
| | - Tarik Eljaddi
- Laboratoire Génie des Matériaux pour l'Environnement et la valorisation (GeMEV); Université Hassan II, Faculté des Sciences Aïn Chock; B.P. 5366, Maârif Casablanca Morocco
| | - El Houssine EL Atmani
- Laboratoire Génie des Matériaux pour l'Environnement et la valorisation (GeMEV); Université Hassan II, Faculté des Sciences Aïn Chock; B.P. 5366, Maârif Casablanca Morocco
| | - Imane Touarssi
- Laboratoire Génie des Matériaux pour l'Environnement et la valorisation (GeMEV); Université Hassan II, Faculté des Sciences Aïn Chock; B.P. 5366, Maârif Casablanca Morocco
| | - Laurent Lebrun
- Laboratoire Polymeres, Biopolymeres, Surfaces, UMR 6270 du CNRS; Universite de Rouen, Faculté des Sciences; F-76821 Mont-Saint-Aignan France
| | - Miloudi Hlaïbi
- Laboratoire Génie des Matériaux pour l'Environnement et la valorisation (GeMEV); Université Hassan II, Faculté des Sciences Aïn Chock; B.P. 5366, Maârif Casablanca Morocco
- Laboratoire Polymeres, Biopolymeres, Surfaces, UMR 6270 du CNRS; Universite de Rouen, Faculté des Sciences; F-76821 Mont-Saint-Aignan France
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11
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Antimicrobial polysulfone blended ultrafiltration membranes prepared with Ag/Cu2O hybrid nanowires. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.02.035] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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12
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Wang W, Zheng Z, Huang X, Fan W, Yu W, Zhang Z, Li L, Mao C. Hemocompatibility and oxygenation performance of polysulfone membranes grafted with polyethylene glycol and heparin by plasma-induced surface modification. J Biomed Mater Res B Appl Biomater 2016; 105:1737-1746. [PMID: 27177987 DOI: 10.1002/jbm.b.33709] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Revised: 03/23/2016] [Accepted: 04/24/2016] [Indexed: 12/14/2022]
Abstract
Polyethylene glycol (PEG) and heparin (Hep) were grafted onto polysulfone (PSF) membrane by plasma-induced surface modification to prepare PSF-PEG-Hep membranes used for artificial lung. The effects of plasma treatment parameters, including power, gas type, gas flow rate, and treatment time, were investigated, and different PEG chains were bonded covalently onto the surface in the postplasma grafting process. Membrane surfaces were characterized by water contact angle, PEG grafting degree, attenuated total reflectance-Fourier transform infrared spectroscopy, ultraviolet-visible spectrophotometry, X-ray photoelectron spectroscopy, critical water permeability pressure, and scanning electron microscopy. Protein adsorption, platelet adhesion, and coagulation tests showed significant improvement in the hemocompatibility of PSF-PEG-Hep membranes compared to pristine PSF membrane. Gas exchange tests through PSF-PEG6000-Hep membrane showed that when the flow rate of porcine blood reached 5.0 L/min, the permeation fluxes of O2 and CO2 reached 192.6 and 166.9 mL/min, respectively, which were close to the gas exchange capacity of a commercial membrane oxygenator. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1737-1746, 2017.
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Affiliation(s)
- Weiping Wang
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, People's Republic of China
| | - Zhi Zheng
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, People's Republic of China
| | - Xin Huang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Wenling Fan
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Wenkui Yu
- Medical School, Nanjing University, Nanjing, People's Republic of China
| | - Zhibing Zhang
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, People's Republic of China
| | - Lei Li
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, People's Republic of China
| | - Chun Mao
- Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, People's Republic of China
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13
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Qin L, Fan Z, Xu L, Zhang G, Wang G, Wu D, Long X, Meng Q. A submerged membrane bioreactor with pendulum type oscillation (PTO) for oily wastewater treatment: membrane permeability and fouling control. BIORESOURCE TECHNOLOGY 2015; 183:33-41. [PMID: 25710681 DOI: 10.1016/j.biortech.2015.02.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 02/01/2015] [Accepted: 02/07/2015] [Indexed: 06/04/2023]
Abstract
In this study, a novel submerged membrane bioreactor (SMBR) with pendulum type oscillation (PTO) hollow fiber membrane modules was developed to treat oily wastewater and control the problem of membrane fouling. To assess the potential of PTO membrane modules, the effect of oscillation orientation and frequency on membrane permeability was investigated in detail. The forces exerted on sludge flocs in the oscillating SMBR were analyzed to evaluate the impact of membrane oscillating on the cake layer resistance reduction. Results showed that the optimized PTO SMBR system exhibited 11 times higher membrane permeability and better fouling controllability than the conventional MBR system. By hydrodynamic analysis, it was found that the cooperative effect of bubble-induced turbulence and membrane oscillation in PTO SMBR system generated strong shear stress at liquid-membrane interface in vertical and horizontal direction and effectively hindered the particles from depositing on membrane surface.
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Affiliation(s)
- Lei Qin
- Institute of Oceanic and Environmental Chemical Engineering, College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Zheng Fan
- Institute of Oceanic and Environmental Chemical Engineering, College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Lusheng Xu
- Institute of Oceanic and Environmental Chemical Engineering, College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Guoliang Zhang
- Institute of Oceanic and Environmental Chemical Engineering, College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310014, PR China.
| | - Guanghui Wang
- Institute of Oceanic and Environmental Chemical Engineering, College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Dexin Wu
- Institute of Oceanic and Environmental Chemical Engineering, College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Xuwei Long
- Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Qin Meng
- Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China.
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14
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Shen C, Meng Q, He W, Wang Q, Zhang G. PPO/PEO modified hollow fiber membranes improved sensitivity of 3D cultured hepatocytes to drug toxicity via suppressing drug adsorption on membranes. Colloids Surf B Biointerfaces 2014; 123:762-9. [PMID: 25454662 DOI: 10.1016/j.colsurfb.2014.10.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 09/22/2014] [Accepted: 10/09/2014] [Indexed: 11/16/2022]
Abstract
The three dimensional (3D) cell culture in polymer-based micro system has become a useful tool for in vitro drug discovery. Among those polymers, polysulfone hollow fiber membrane (PSf HFM) is commonly used to create a microenvironment for cells. However, the target drug may adsorb on the polymeric surface, and this elicits negative impacts on cell exposure due to the reduced effective drug concentration in culture medium. In order to reduce the drug adsorption, PSf membrane were modified with hydrophilic Pluronic (PEO-b-PPO-b-PEO) copolymers, L121, P123 and F127 (PEO contents increase from 10%, 30% to 70%), by physical adsorption. As a result, the hydrophilicity of HFMs increased at an order of PSf<L121<P123<F127 HFMs, while the negative surface charge decreased at the order of PSf>F127>P123>L121 HFMs. The three modified membrane all showed significant resistance to adsorption of acid/neutral drugs. More importantly, the adsorption of base drugs were largely reduced to an average value of 11% on the L121 HFM. The improved resistance to drug adsorption could be attributed to the synergy of hydrophobic/neutrally charged PPO and hydrophilic PEO. The L121 HFM was further assessed by evaluating the drug hepatotoxicity in 3D culture of hepatocytes. The base drugs, clozapine and doxorubicin, showed more sensitive hepatotoxicity on hepatocytes in L121 HFM than in PSf HFM, while the acid drug, salicylic acid, showed the similar hepatotoxicity to hepatocytes in both HFMs. Our finding suggests that PSf HFM modified by PEO-b-PPO-b-PEO copolymers can efficiently resist the drug adsorption onto polymer membrane, and consequently improve the accuracy and sensitivity of in vitro hepatotoxic drug screening.
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Affiliation(s)
- Chong Shen
- Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Qin Meng
- Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China.
| | - Wenjuan He
- Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Qichen Wang
- Micro Stamping Corporation, Somerset, NJ 08873, United States
| | - Guoliang Zhang
- College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou, China.
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15
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BAI HAOLONG, ZHOU YITONG, ZHANG LIPING. Morphology and Mechanical Properties of a New Nanocrystalline Cellulose/Polysulfone Composite Membrane. ADVANCES IN POLYMER TECHNOLOGY 2014. [DOI: 10.1002/adv.21471] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- HAOLONG BAI
- College of Material Science and Technology; Beijing Forestry University; Beijing 100083 People's Republic of China
| | - YITONG ZHOU
- College of Material Science and Technology; Beijing Forestry University; Beijing 100083 People's Republic of China
| | - LIPING ZHANG
- College of Material Science and Technology; Beijing Forestry University; Beijing 100083 People's Republic of China
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16
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Venault A, Chang Y, Yang HS, Lin PY, Shih YJ, Higuchi A. Surface self-assembled zwitterionization of poly(vinylidene fluoride) microfiltration membranes via hydrophobic-driven coating for improved blood compatibility. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.11.050] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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17
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Surface-modified PSf UF membrane by UV-assisted graft polymerization of capsaicin derivative moiety for fouling and bacterial resistance. J Memb Sci 2013. [DOI: 10.1016/j.memsci.2013.05.026] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Zhang G, Qin L, Meng Q, Fan Z, Wu D. Aerobic SMBR/reverse osmosis system enhanced by Fenton oxidation for advanced treatment of old municipal landfill leachate. BIORESOURCE TECHNOLOGY 2013; 142:261-268. [PMID: 23743431 DOI: 10.1016/j.biortech.2013.05.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 05/02/2013] [Accepted: 05/04/2013] [Indexed: 06/02/2023]
Abstract
A novel combined process of Fenton oxidation, submerged membrane bioreactor (SMBR) and reverse osmosis (RO) was applied as an appropriate option for old municipal landfill leachate treatment. Fenton process was designed to intensively solve the problem of non-biodegradable organic pollutant removal and low biodegradability of leachate, although the removal of ammonia-nitrogen was similar to 10%. After SMBR treatment, it not only presented a higher removal efficiency of organics, but also exhibited high ammonia-nitrogen removal of 80% on average. The variation of extracellular polymeric substance (EPS) content, zeta potential, and particle size of flocs after Fenton effluent continually fed in SMBR was found to be benefit for alleviating membrane fouling. Finally, three kinds of RO membranes (RE, CPA, and BW) were applied to treat SMBR effluents and successfully met wastewater re-utilization requirement. Compared with simple RO process, the troublesome membrane fouling can be effectively reduced in the combined process.
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Affiliation(s)
- Guoliang Zhang
- College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310014, PR China.
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19
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Zhang G, Lu S, Zhang L, Meng Q, Shen C, Zhang J. Novel polysulfone hybrid ultrafiltration membrane prepared with TiO2-g-HEMA and its antifouling characteristics. J Memb Sci 2013. [DOI: 10.1016/j.memsci.2013.02.009] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Dizman C, Tasdelen MA, Yagci Y. Recent advances in the preparation of functionalized polysulfones. POLYM INT 2013. [DOI: 10.1002/pi.4525] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cemil Dizman
- Department of Chemistry; Istanbul Technical University; Maslak Istanbul 34469 Turkey
- Chemistry Institute; TUBITAK Marmara Research Center; Gebze Kocaeli 41470 Turkey
| | - Mehmet Atilla Tasdelen
- Department of Polymer Engineering, Faculty of Engineering; Yalova University; TR-77100 Yalova Turkey
| | - Yusuf Yagci
- Department of Chemistry; Istanbul Technical University; Maslak Istanbul 34469 Turkey
- Center of Excellence for Advanced Materials Research (CEAMR) and Chemistry Department, Faculty of Science; King Abdulaziz University; PO Box 80203 Jeddah 21589 Saudi Arabia
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21
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Shen C, Meng Q, Zhang G. Increased curvature of hollow fiber membranes could up-regulate differential functions of renal tubular cell layers. Biotechnol Bioeng 2013; 110:2173-83. [DOI: 10.1002/bit.24874] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 02/03/2013] [Accepted: 02/15/2013] [Indexed: 12/19/2022]
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22
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Larsen EKU, Larsen NB. One-step polymer surface modification for minimizing drug, protein, and DNA adsorption in microanalytical systems. LAB ON A CHIP 2013; 13:669-75. [PMID: 23254780 DOI: 10.1039/c2lc40750g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The non-specific adsorption of dissolved analytes strongly reduces the sensitivity and reliability in polymer microanalytical systems. Here, a one-step aqueous phase procedure modifies polymer material surfaces to strongly reduce their non-specific adsorption of a broad range of organic analytes including hydrophobic and hydrophilic drugs (0.23 < ClogP < 8.95), small and large proteins (insulin, albumin, IgG), and DNA. The coating is shown to limit the adsorption of even highly hydrophobic drugs (ClogP > 8) in their pharmaceutically relevant concentration range ≤100 nM. The low adsorption is mediated by photochemical conjugation, where polyethylene glycol (PEG) polymers in aqueous solution are covalently bound to the surface by UV illumination of dissolved benzophenone and a functionalized PEG. The method can coat the interior of polymer systems made from a range of materials commonly used in microanalytical systems, including polystyrene (PS), cyclic olefin copolymer (COC), liquid crystalline polymer (LCP), and polyimide (PI).
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Affiliation(s)
- Esben Kjær Unmack Larsen
- Department of Micro- and Nanotechnology, DTU Nanotech, Technical University of Denmark, Ørsteds Plads 345E, DK-2800 Kgs. Lyngby, Denmark
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Qin L, Zhang G, Meng Q, Zhang H, Xu L, Lv B. Enhanced submerged membrane bioreactor combined with biosurfactant rhamnolipids: performance for frying oil degradation and membrane fouling reduction. BIORESOURCE TECHNOLOGY 2012; 126:314-320. [PMID: 23123288 DOI: 10.1016/j.biortech.2012.08.103] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Revised: 08/17/2012] [Accepted: 08/23/2012] [Indexed: 06/01/2023]
Abstract
In this study, a novel submerged membrane bioreactor (SMBR) combined with rhamnolipids was developed to treat frying oil wastewater and control the problem of membrane fouling. To validate the feasibility of this new design, a hybrid SMBR with additional rhamnolipids (RSMBR) and a controlled SMBR (CSMBR) were run in parallel. Results demonstrated that RSMBR not only held high removal efficiency of oil up to 90% at short hydraulic time, but also exhibited 10 times higher membrane permeability in comparison to CSMBR. The presence of rhamnolipids greatly enhanced the contact and reaction between the microorganism and oil molecules. The great improvement in membrane filterability was associated with an increase in hydrophobicity of flocs as well as the increase of particle size from 53.06 to 145.54 μm. The oil strongly adhered to the surface of flocs by rhamnolipids, and consequently prevented larger oil droplets directly depositing on the membrane surface.
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Affiliation(s)
- Lei Qin
- College of Chemical Engineering and Materials Science, Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China
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Shen C, Zhang G, Meng Q. Regulation of epithelial cell morphology and functions approaching to more in vivo-like by modifying polyethylene glycol on polysulfone membranes. PLoS One 2012; 7:e36110. [PMID: 22558349 PMCID: PMC3338612 DOI: 10.1371/journal.pone.0036110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Accepted: 03/30/2012] [Indexed: 11/28/2022] Open
Abstract
Cytocompatibility is critically important in design of biomaterials for application in tissue engineering. However, the currently well-accepted “cytocompatible" biomaterials are those which promote cells to sustain good attachment/spreading. The cells on such materials usually lack the self-assembled cell morphology and high cell functions as in vivo. In our view, biomaterials that can promote the ability of cells to self-assemble and demonstrate cell-specific functions would be cytocompatible. This paper examined the interaction of polyethylene glycol (PEG) modified polysulfone (PSf) membranes with four epithelial cell types (primary liver cells, a liver tumor cell line, and two renal tubular cell lines). Our results show that PSf membranes modified with proper PEG promoted the aggregation of both liver and renal cells, but the liver cells more easily formed aggregates than the renal tubular cells. The culture on PEG-modified PSf membranes also enhanced cell-specific functions. In particular, the cells cultured on F127 membranes with the proper PEG content mimicked the in vivo ultrastructure of liver cells or renal tubules cells and displayed the highest cell functions. Gene expression data for adhesion proteins suggest that the PEG modification impaired cell-membrane interactions and increased cell-cell interactions, thus facilitating cell self-assembly. In conclusion, PEG-modified membrane could be a cytocompatible material which regulates the morphology and functions of epithelial cells in mimicking cell performance in vivo.
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Affiliation(s)
- Chong Shen
- Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Guoliang Zhang
- College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Qin Meng
- Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
- * E-mail:
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