1
|
Chu W, Ma Y, Zhang Y, Cao X, Shi Z, Liu Y, Ding X. Significantly improved antifouling capability of silicone rubber surfaces by covalently bonded acrylated agarose towards biomedical applications. Colloids Surf B Biointerfaces 2023; 222:112979. [PMID: 36435025 DOI: 10.1016/j.colsurfb.2022.112979] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/21/2022] [Accepted: 10/26/2022] [Indexed: 11/05/2022]
Abstract
Bacteria have the extraordinary ability to adhere to biomaterial surfaces and form multicellular structures known as biofilms, which have a detrimental impact on the performance of medical devices. Herein, an investigation highlighted the effective inhibition of bacteria adhesion and overgrowth on silicone rubber surface by grafting polysaccharide, agarose (AG), to construct hydrophilic and negatively charged surfaces. Because of the strong hydration capacity of agarose, the water contact angle of the modified silicone rubber surfaces was significantly reduced from 107.6 ± 2.7° to 19.3 ± 2.6°, which successfully limited bacterial adherence. Most importantly, the durability and stability of coating were observed after 10 days of simulated dynamic microenvironment in vivo, exhibiting a long service life. This modification method did not compromise biocompatibility of silicone rubber, opening a door to new applications for silicone rubber in the field of biomedical materials.
Collapse
Affiliation(s)
- Wenting Chu
- Key Laboratory of Biomedical Materials of Natural Macromolecules, Beijing University of Chemical Technology, Ministry of Education, Beijing, China; Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China
| | - Yuhong Ma
- Key Laboratory of Biomedical Materials of Natural Macromolecules, Beijing University of Chemical Technology, Ministry of Education, Beijing, China; Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China
| | - Yuning Zhang
- Key Laboratory of Biomedical Materials of Natural Macromolecules, Beijing University of Chemical Technology, Ministry of Education, Beijing, China; Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China
| | - Xinjie Cao
- Key Laboratory of Biomedical Materials of Natural Macromolecules, Beijing University of Chemical Technology, Ministry of Education, Beijing, China; Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China
| | - Zhongyu Shi
- Key Laboratory of Biomedical Materials of Natural Macromolecules, Beijing University of Chemical Technology, Ministry of Education, Beijing, China; Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China
| | - Ying Liu
- Key Laboratory of Biomedical Materials of Natural Macromolecules, Beijing University of Chemical Technology, Ministry of Education, Beijing, China; Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China
| | - Xuejia Ding
- Key Laboratory of Biomedical Materials of Natural Macromolecules, Beijing University of Chemical Technology, Ministry of Education, Beijing, China; Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China.
| |
Collapse
|
2
|
Suresh D, Goh PS, Ismail AF, Hilal N. Surface Design of Liquid Separation Membrane through Graft Polymerization: A State of the Art Review. MEMBRANES 2021; 11:832. [PMID: 34832061 PMCID: PMC8621935 DOI: 10.3390/membranes11110832] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/17/2021] [Accepted: 10/21/2021] [Indexed: 11/17/2022]
Abstract
Surface modification of membranes is an effective approach for imparting unique characteristics and additional functionalities to the membranes. Chemical grafting is a commonly used membrane modification technique due to its versatility in tailoring and optimizing the membrane surface with desired functionalities. Various types of polymers can be precisely grafted onto the membrane surface and the operating conditions of grafting can be tailored to further fine-tune the membrane surface properties. This review focuses on the recent strategies in improving the surface design of liquid separation membranes through grafting-from technique, also known as graft polymerization, to improve membrane performance in wastewater treatment and desalination applications. An overview on membrane technology processes such as pressure-driven and osmotically driven membrane processes are first briefly presented. Grafting-from surface chemical modification approaches including chemical initiated, plasma initiated and UV initiated approaches are discussed in terms of their features, advantages and limitations. The innovations in membrane surface modification techniques based on grafting-from techniques are comprehensively reviewed followed by some highlights on the current challenges in this field. It is concluded that grafting-from is a versatile and effective technique to introduce various functional groups to enhance the surface properties and separation performances of liquid separation membranes.
Collapse
Affiliation(s)
- Deepa Suresh
- Advanced Membrane Technology Research Centre, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia; (D.S.); (A.F.I.)
| | - Pei Sean Goh
- Advanced Membrane Technology Research Centre, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia; (D.S.); (A.F.I.)
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia; (D.S.); (A.F.I.)
| | - Nidal Hilal
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| |
Collapse
|
3
|
Okoro HK, Ndlwana L, Ikhile MI, Barnard TG, Ngila JC. Hyperbranched polyethylenimine-modified polyethersulfone (HPEI/PES) and nAg@HPEI/PES membranes with enhanced ultrafiltration, antibacterial, and antifouling properties. Heliyon 2021; 7:e07961. [PMID: 34553089 PMCID: PMC8441160 DOI: 10.1016/j.heliyon.2021.e07961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/26/2021] [Accepted: 09/06/2021] [Indexed: 11/05/2022] Open
Abstract
This study reports a simple fabrication of polyethersulfone (PES)-based membranes, their characterisation, and application. These membranes are modified with hyperbranched polyethyleneimine (HPEI) and -silver (nAg)-decorated HPEI. These were then compared for filtration, organic fouling, antifouling, and antibacterial properties against the neat PES membrane. The fabricated membranes were characterised for their chemistry using attenuated transmission reflectance-equipped Fourier transform infrared spectroscopy (ATR-FTIR) and x-ray photoelectron spectroscopy (XPS). As such, the presence of HPEI interactions between the nAg and HPEI in the membranes was confirmed. An energy-dispersive x-ray detector coupled with a scanning electron microscopy (SEM-EDS) and atomic force microscopy (AFM) were used to study morphological, compositional, topographical, and topological changes to the membrane due to the modifications. A thermogravimetric analyser (TGA) was also utilised to evaluate the effect of modification on thermal stability of the resulting membranes. Optical contact angle (OCA) interrogated the extent of membrane/water interactions which indicated enhanced hydrophilicity due to the modification. Dead-end filtration using these membranes indicated enhanced pure water permeate fluxes and protein rejection (bovine serum albumin, BSA). The results of the BSA rejection for the HPEI/PES membranes were a maximum of 98% while those of the nAg@HPEI/PES ranged between 30-87%. The membranes possessed high flux recoveries, indicating great potential for the membranes for antifouling applications in water treatment. Extensive antibacterial studies were carried out on the membranes to probe bioactivity. Enhanced activity was recorded (except for neat PES) with zone inhibitions of up to 7 mm against five bacterial strains including E. Coli and K. Pneumoniae as found in several wastewater streams. The antibacterial properties of these membranes mean they can prolong membrane operational lifetime by mitigating biofilming during water treatment. New flat sheet membranes possessing both organic antifouling and antibacterial properties were fabricated. The successive modification of PES with HPEI and nAg resulted in enhanced membrane properties. Most of the membranes exhibited good antibacterial activities against the bacterial strains tested. Membrane samples with nAg also displayed good antibacterial activities against bacteria E Coli. The use of cost friendly HPEI and low levels of modification, and ease of membrane fabrication was achieved.
Collapse
Affiliation(s)
- Hussein K Okoro
- Analytical-Environmental, Membrane Nanotechnology Research Group, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, Johannesburg, South Africa.,Environmental-Analytical Research Group, Department of Industrial Chemistry, Faculty of Physical Sciences, P.M.B. 1515, University of Ilorin, Ilorin, Nigeria
| | - Lwazi Ndlwana
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering, and Technology, University of South Africa, Florida, Science Campus, P.O. Box 392, Pretoria 003, South Africa
| | - Monisola I Ikhile
- Drugs Discovery and Smart Materials Research Group, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, Johannesburg, South Africa
| | - Tobias G Barnard
- Water and Health Research Centre, University of Johannesburg, Doornfontein Campus, South Africa
| | - J Catherine Ngila
- Analytical-Environmental, Membrane Nanotechnology Research Group, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, Johannesburg, South Africa.,The African Academy of Sciences, P.O. Box 24916-00502, 8 Miotoni Lane, Karen, Nairobi, Kenya
| |
Collapse
|
4
|
Stable zeolitic imidazolate framework-8 supported onto graphene oxide hybrid ultrafiltration membranes with improved fouling resistance and water flux. CHEMICAL ENGINEERING JOURNAL ADVANCES 2020. [DOI: 10.1016/j.ceja.2020.100005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
|
5
|
Reduction of Biofouling of a Microfiltration Membrane Using Amide Functionalities-Hydrophilization without Changes in Morphology. Polymers (Basel) 2020; 12:polym12061379. [PMID: 32575508 PMCID: PMC7362187 DOI: 10.3390/polym12061379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/02/2020] [Accepted: 06/09/2020] [Indexed: 01/22/2023] Open
Abstract
A major goal of membrane science is the improvement of the membrane performance and the reduction of fouling effects, which occur during most aqueous filtration applications. Increasing the surface hydrophilicity can improve the membrane performance (in case of aqueous media) and decelerates membrane fouling. In this study, a PES microfiltration membrane (14,600 L m-2 h-1 bar-1) was hydrophilized using a hydrophilic surface coating based on amide functionalities, converting the hydrophobic membrane surface (water contact angle, WCA: ~90°) into an extremely hydrophilic one (WCA: ~30°). The amide layer was created by first immobilizing piperazine to the membrane surface via electron beam irradiation. Subsequently, a reaction with 1,3,5-benzenetricarbonyl trichloride (TMC) was applied to generate an amide structure. The presented approach resulted in a hydrophilic membrane surface, while maintaining permeance of the membrane without pore blocking. All membranes were investigated regarding their permeance, porosity, average pore size, morphology (SEM), chemical composition (XPS), and wettability. Soxhlet extraction was carried out to demonstrate the stability of the applied coating. The improvement of the modified membranes was demonstrated using dead-end filtration of algae solutions. After three fouling cycles, about 60% of the initial permeance remain for the modified membranes, while only ~25% remain for the reference.
Collapse
|
6
|
Development of Hydrophilic PVDF Membrane Using Vapour Induced Phase Separation Method for Produced Water Treatment. MEMBRANES 2020; 10:membranes10060121. [PMID: 32560031 PMCID: PMC7345896 DOI: 10.3390/membranes10060121] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 05/23/2020] [Accepted: 05/24/2020] [Indexed: 11/16/2022]
Abstract
During the production of oil and gas, a large amount of oily wastewater is generated, which would pollute the environment if discharged without proper treatment. As one of the most promising treatment options, membrane material used for oily wastewater treatment should possess desirable properties of high hydraulic performance combined with high membrane fouling resistance. This project employs the vapor induced phase separation (VIPS) technique to develop a hydrophilic polyvinylidene fluoride (PVDF) membrane with polyethylene glycol (PEG) as an additive for produced water treatment. Results show that thanks to its slow nonsolvent intake, the VIPS method hinders additive leaching during the cast film immersion. The results also reveal that the exposure of the film to the open air before immersion greatly influences the structure of the developed membranes. By extending the exposure time from 0 to 30 min, the membrane morphology change from typical asymmetric with large macrovoids to the macrovoid-free porous symmetric membrane with a granular structure, which corresponds to 35% increment of steady-state permeability to 189 L·m−2h−1bar−1, while maintaining >90% of oil rejection. It was also found that more PEG content resides in the membrane matrix when the exposure time is extended, contributes to the elevation of surface hydrophilicity, which improves the membrane antifouling properties. Overall results demonstrate the potential of VIPS method for the fabrication of hydrophilic PVDF membrane by helping to preserve hydrophilic additive in the membrane matrices.
Collapse
|
7
|
Poly(vinyl chloride) reinforced Schiff base as an eco-friendly alternative to conventional PVC. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0993-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
8
|
Esmaeili M, Virtanen T, Lahti J, Mänttäri M, Kallioinen M. Vanillin as an Antifouling and Hydrophilicity Promoter Agent in Surface Modification of Polyethersulfone Membrane. MEMBRANES 2019; 9:membranes9040056. [PMID: 31022907 PMCID: PMC6523077 DOI: 10.3390/membranes9040056] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/17/2019] [Accepted: 04/18/2019] [Indexed: 11/16/2022]
Abstract
Fouling as an intricate process is considered as the main obstacle in membrane technologies, and its control is one of the main areas of attention in membrane processes. In this study, a commercial polyethersulfone ultrafiltration membrane (MWCO: 4000 g/mol) was surface modified with different concentrations of vanillin as an antifouling and hydrophilicity promoter to improve its performance. The presence of vanillin and its increasing adsorption potential trends in higher vanillin concentrations were clearly confirmed by observable changes in FTIR (Fourier transform infrared) spectra after modification. Membranes with better hydrophilicity (almost 30% lower contact angle in the best case) and higher polyethylene glycol solution (PEG) permeability were achieved after modification, where a 35–38% increase in permeability of aqueous solution of PEG was perceived when the membrane was modified at the highest exposure concentration of vanillin (2.8 g/L). After filtration of wood extract, surface modified membrane (2.8 g/L vanillin) showed better antifouling characteristics compared to unmodified membrane, as indicated by approximately 22% lower pure water flux reduction, which in turn improved the separation of lignin from the other organic compounds present in wood extract.
Collapse
Affiliation(s)
- Mohammadamin Esmaeili
- LUT School of Engineering Science, Department of Separation and Purification Technology, LUT University, 53850 Lappeenranta, Finland.
| | - Tiina Virtanen
- LUT School of Engineering Science, Department of Separation and Purification Technology, LUT University, 53850 Lappeenranta, Finland.
| | - Jussi Lahti
- LUT School of Engineering Science, Department of Separation and Purification Technology, LUT University, 53850 Lappeenranta, Finland.
- LUT Re-Source Platform, LUT University, P.O. Box 20, 53851 Lappeenranta, Finland.
| | - Mika Mänttäri
- LUT School of Engineering Science, Department of Separation and Purification Technology, LUT University, 53850 Lappeenranta, Finland.
| | - Mari Kallioinen
- LUT School of Engineering Science, Department of Separation and Purification Technology, LUT University, 53850 Lappeenranta, Finland.
- LUT Re-Source Platform, LUT University, P.O. Box 20, 53851 Lappeenranta, Finland.
| |
Collapse
|
9
|
Charge Separating Microfiltration Membrane with pH-Dependent Selectivity. Polymers (Basel) 2018; 11:polym11010003. [PMID: 30959987 PMCID: PMC6401782 DOI: 10.3390/polym11010003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/10/2018] [Accepted: 12/19/2018] [Indexed: 11/16/2022] Open
Abstract
Membrane filters are designed for selective separation of components from a mixture. While separation by size might be the most common approach, other characteristics like charge can also be used for separation as presented in this study. Here, a polyether sulfone membrane was modified to create a zwitterionic surface. Depending on the pH value of the surrounding solution the membrane surface will be either negatively or positively charged. Thus, the charged state can be easily adjusted even by small changes of the pH value of the solution. Charged polystyrene beads were used as model reagent to investigate the pH dependent selectivity of the membrane. It was found that electrostatic forces are dominating the interactions between polystyrene beads and membrane surface during the filtration. This enables a complete control of the membrane's selectivity according to the electrostatic interactions. Furthermore, differently charged beads marked with fluorescent dyes were used to investigate the selectivity of mixtures of charged components. These different components were successfully separated according to their charged state proving the selectivity of the invented membrane.
Collapse
|
10
|
Lee XJ, Show PL, Katsuda T, Chen WH, Chang JS. Surface grafting techniques on the improvement of membrane bioreactor: State-of-the-art advances. BIORESOURCE TECHNOLOGY 2018; 269:489-502. [PMID: 30172460 DOI: 10.1016/j.biortech.2018.08.090] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/17/2018] [Accepted: 08/20/2018] [Indexed: 05/26/2023]
Abstract
Membrane bioreactor (MBR) is regarded as the state-of-the-art technology in separation processes. Surface modification techniques play a critical role in improving the conventional membrane system which is mostly hydrophobic in nature. The hydrophobic nature of membranes is known to cause fouling, resulting in high maintenance costs and shorter lifespan of MBR. Thus, surface grafting aims to improve the hydrophilicity of bio-based membrane systems. This review describes the major surface grafting techniques currently used in membranes, including photo induced grafting, plasma treatment and plasma induced grafting, radiation induced grafting, thermal induced grafting and ozone induced grafting. The advantages and disadvantages of each method is discussed along with their parametric studies. The potential applications of MBR are very promising, but some integral membrane properties could be a major challenge that hinders its wider reach. The fouling issue could be resolved with the surface grafting techniques to achieve better performance of MBRs.
Collapse
Affiliation(s)
- Xin Jiat Lee
- Department of Chemical and Environmental Engineering, The University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, The University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
| | - Tomohisa Katsuda
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 701, Taiwan
| | - Jo-Shu Chang
- Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 701, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan; Research Center for Circular Economy, National Cheng Kung University, Tainan 701, Taiwan.
| |
Collapse
|
11
|
Zheng Z, Ma D, Rashidi S, Li B. Study of denaturation and composition‐dependent poly(ethylene oxide)–soy protein interactions: Structures and dielectric polarization. J Appl Polym Sci 2018. [DOI: 10.1002/app.46561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Zhuoyuan Zheng
- Department of Mechanical EngineeringWichita State UniversityWichita, Kansas 67260‐0133
| | - Da Ma
- Department of Mechanical EngineeringWichita State UniversityWichita, Kansas 67260‐0133
| | - Soheil Rashidi
- Department of Mechanical EngineeringWichita State UniversityWichita, Kansas 67260‐0133
| | - Bin Li
- Department of Mechanical EngineeringWichita State UniversityWichita, Kansas 67260‐0133
| |
Collapse
|
12
|
Tsai CW, Chiang IN, Wang JH, Young TH. Chitosan delaying human fibroblast senescence through downregulation of TGF-β signaling pathway. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:1852-1863. [DOI: 10.1080/21691401.2017.1394873] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ching-Wen Tsai
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| | - I-Ni Chiang
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan
| | - Jyh-Horng Wang
- Department of Orthopedic Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Tai-Horng Young
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| |
Collapse
|
13
|
Mamat N, Darus F, Md Isa R, Jaafar M, Kawashita M. Hierarchical bioceramic scaffold for tissue engineering: A review. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1291507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Normahira Mamat
- Biomaterials Niche Area Group, School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia Engineering Campus, Nibong Tebal, Malaysia
| | - Fadilah Darus
- Biomaterials Niche Area Group, School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia Engineering Campus, Nibong Tebal, Malaysia
| | - Rosaniza Md Isa
- Biomaterials Niche Area Group, School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia Engineering Campus, Nibong Tebal, Malaysia
| | - Mariatti Jaafar
- Biomaterials Niche Area Group, School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia Engineering Campus, Nibong Tebal, Malaysia
| | - Masakazu Kawashita
- Graduate School of Biomedical Engineering, Tohoku University, Sendai, Japan
| |
Collapse
|
14
|
Mahmoudifard M, Vossoughi M, Soudi S, Soleimani M. Electrospun polyethersolfone nanofibrous membrane as novel platform for protein immobilization in microfluidic systems. J Biomed Mater Res B Appl Biomater 2017; 106:1108-1120. [PMID: 28503802 DOI: 10.1002/jbm.b.33923] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 04/04/2017] [Accepted: 04/29/2017] [Indexed: 11/07/2022]
Abstract
In the present study, the feasibility of electrospun polyethersolfone (PES) nanofibrous membrane as the solid substrate for microfluidic based immunoassays to enhance the density of immobilized antibody on the surface of membrane was assessed. Conversely, the efficacy of antibody immobilization was compared by two different strategies as 1-Ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC)/N-Hydroxysuccinimide (NHS) coupling chemistry and hydrophobic interaction. Compared to conventional immunoassays carried out in plates or gels, microfluidic based immunoassays grant a lot of advantages such as a consumption of little samples and reagents, shorter analysis time, and higher efficiency. Therefore, microfluidic immunoassays can be efficiently used as a point-of-care device in medical diagnosis. Surprisingly, we found the increase of specific surface areas of the microfluidic channels improve density of immobilized proteins and leads to higher signal strength. Anti-staphylococcus enterotoxin B (anti-SEB) was used as an analyte model to demonstrate the utility of our proposed platform. Fluorescent microscopy, Fourier transform infrared spectroscopic (FTIR), gas adsorption, contact angle, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), Uv-Vis spectrophotometer and atomic force microscopy (AFM) techniques were used to assess the efficacy of antibody immobilization on the surface. To understand dominant mechanism of protein immobilization, zeta potential measurement was also carried out and it was found electrostatic attraction play significant role in antibody immobilization running into micro- channels containing through EDC/NHS. Moreover, incorporation of nanofibrous membrane causes significant improvement in the signal detection of microfluidic based immunoassay. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1108-1120, 2018.
Collapse
Affiliation(s)
- Matin Mahmoudifard
- Institute for nanoscience and nanotechnology, Sharif University of Technology, Tehran, Iran.,Nanotechnology and Tissue Engineering Department, Stem Cell Technology Research Center, Tehran, Iran
| | - Manouchehr Vossoughi
- Institute for nanoscience and nanotechnology, Sharif University of Technology, Tehran, Iran.,Chemical and Petroleum Engineering Department, Sharif University of Technology, Tehran, Iran
| | - Sara Soudi
- Department of immunology, Faculty of medical sciences, Tarbiat Modares University, Tehran, Iran
| | - Masoud Soleimani
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| |
Collapse
|
15
|
Benavidez TE, Garcia CD. Spectroscopic ellipsometry as a complementary tool to characterize coatings on PDMS for CE applications. Electrophoresis 2016; 37:2509-2516. [DOI: 10.1002/elps.201600143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 05/20/2016] [Accepted: 05/20/2016] [Indexed: 11/11/2022]
|
16
|
Breite D, Went M, Prager A, Schulze A. The critical zeta potential of polymer membranes: how electrolytes impact membrane fouling. RSC Adv 2016. [DOI: 10.1039/c6ra19239d] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The zeta potential of membrane surfaces and the resulting electrostatic interactions are determining factors of membrane fouling. This publication presents the impact of salt concentration and pH value on these interactions.
Collapse
Affiliation(s)
- D. Breite
- Leibniz Institute of Surface Modification
- Leipzig
- Germany
| | - M. Went
- Leibniz Institute of Surface Modification
- Leipzig
- Germany
| | - A. Prager
- Leibniz Institute of Surface Modification
- Leipzig
- Germany
| | - A. Schulze
- Leibniz Institute of Surface Modification
- Leipzig
- Germany
| |
Collapse
|
17
|
Yang Y, Sun N, Zheng L. Effect of grafting density of the side chain on the microstructure and properties of proton exchange membranes based on polyvinyl alcohol and poly(ionic liquid). RSC Adv 2016. [DOI: 10.1039/c6ra11498a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
PEM with different grafting densities can form ionic clusters with different sizes.
Collapse
Affiliation(s)
- Yi Yang
- Key Laboratory of Colloid and Interface Chemistry
- Shandong University
- Ministry of Education
- Jinan 250100
- China
| | - Na Sun
- Key Laboratory of Colloid and Interface Chemistry
- Shandong University
- Ministry of Education
- Jinan 250100
- China
| | - Liqiang Zheng
- Key Laboratory of Colloid and Interface Chemistry
- Shandong University
- Ministry of Education
- Jinan 250100
- China
| |
Collapse
|
18
|
Breite D, Went M, Thomas I, Prager A, Schulze A. Particle adsorption on a polyether sulfone membrane: how electrostatic interactions dominate membrane fouling. RSC Adv 2016. [DOI: 10.1039/c6ra13787c] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study presents a new method focussing on electrostatic interactions during fouling of microfiltration membranes.
Collapse
Affiliation(s)
- D. Breite
- Leibniz Institute of Surface Modification
- Leipzig
- Germany
| | - M. Went
- Leibniz Institute of Surface Modification
- Leipzig
- Germany
| | - I. Thomas
- Leibniz Institute of Surface Modification
- Leipzig
- Germany
| | - A. Prager
- Leibniz Institute of Surface Modification
- Leipzig
- Germany
| | - A. Schulze
- Leibniz Institute of Surface Modification
- Leipzig
- Germany
| |
Collapse
|
19
|
Tailoring Membrane Surface Charges: A Novel Study on Electrostatic Interactions during Membrane Fouling. Polymers (Basel) 2015. [DOI: 10.3390/polym7101497] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
20
|
Angione MD, Duff T, Bell AP, Stamatin SN, Fay C, Diamond D, Scanlan EM, Colavita PE. Enhanced Antifouling Properties of Carbohydrate Coated Poly(ether sulfone) Membranes. ACS APPLIED MATERIALS & INTERFACES 2015; 7:17238-17246. [PMID: 26192984 DOI: 10.1021/acsami.5b04201] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Poly(ether sulfone) membranes (PES) were modified with biologically active monosaccharides and disaccharides using aryldiazonium chemistry as a mild, one-step, surface-modification strategy. We previously proposed the modification of carbon, metals, and alloys with monosaccharides using the same method; herein, we demonstrate modification of PES membranes and the effect of chemisorbed carbohydrate layers on their resistance to biofouling. Glycosylated PES surfaces were characterized using spectroscopic methods and tested against their ability to interact with specific carbohydrate-binding proteins. Galactose-, mannose-, and lactose-modified PES surfaces were exposed to Bovine Serum Albumin (BSA) solutions to assess unspecific protein adsorption in the laboratory and were found to adsorb significantly lower amounts of BSA compared to bare membranes. The ability of molecular carbohydrate layers to impart antifouling properties was further tested in the field via long-term immersive tests at a wastewater treatment plant. A combination of ATP content assays, infrared spectroscopic characterization and He-ion microscopy (HIM) imaging were used to investigate biomass accumulation at membranes. We show that, beyond laboratory applications and in the case of complex aqueous environments that are rich in biomass such as wastewater effluent, we observe significantly lower biofouling at carbohydrate-modified PES than at bare PES membrane surfaces.
Collapse
Affiliation(s)
- M Daniela Angione
- †School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland
- ‡Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Thomas Duff
- †School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland
- ‡Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Alan P Bell
- ‡Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Serban N Stamatin
- †School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland
- ‡Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Cormac Fay
- §Insight Centre for Data Analytics, National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland
| | - Dermot Diamond
- §Insight Centre for Data Analytics, National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland
| | - Eoin M Scanlan
- †School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland
- ‡Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Paula E Colavita
- †School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland
- ‡Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, College Green, Dublin 2, Ireland
| |
Collapse
|
21
|
Das T, Roy S, Ting S, Zhang L, Li Y, Yue CY, Hu X. A green technique to prepare uniform amine capped multi-walled carbon nanotubes to fabricate high strength, protein resistant polymer nanocomposites. RSC Adv 2015. [DOI: 10.1039/c4ra11519h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Efficient amine grafting on MWCNTs by double UV-ozone induced grafting, and its role in biomaterials.
Collapse
Affiliation(s)
- Tanya Das
- School of Mechanical and Aerospace Engineering
- Nanyang Technological University
- Singapore 639798
| | - Sunanda Roy
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
| | - Sun Ting
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
| | - Liying Zhang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
| | - Yongmei Li
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
| | - Chee Yoon Yue
- School of Mechanical and Aerospace Engineering
- Nanyang Technological University
- Singapore 639798
| | - Xiao Hu
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
| |
Collapse
|
22
|
Zhao YF, Zhu LP, Yi Z, Zhu BK, Xu YY. Zwitterionic hydrogel thin films as antifouling surface layers of polyethersulfone ultrafiltration membranes anchored via reactive copolymer additive. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.07.023] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
23
|
Jiang H, Tian C, Zhang L, Cheng Z, Zhu X. Facile and highly efficient “living” radical polymerization of hydrophilic vinyl monomers in water. RSC Adv 2014. [DOI: 10.1039/c4ra09439e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
|
24
|
Sulfonated-polysulfone membrane surface modification by employing methacrylic acid through UV-grafting: Optimization through response surface methodology approach. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.07.046] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
25
|
Burdette CQ, Marcus RK. Solid phase extraction of proteins from buffer solutions employing capillary-channeled polymer (C-CP) fibers as the stationary phase. Analyst 2014; 138:1098-106. [PMID: 23223274 DOI: 10.1039/c2an36126d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polypropylene (PP) capillary-channeled polymer (C-CP) fibers are applied for solid phase extraction (SPE) of proteins from aqueous buffer solutions using a micropipette tip-based format. A process was developed in which centrifugation is used as the moving force for solution passage in the loading/washing steps instead of the previously employed manual aspiration. The complete procedure requires ~15 minutes, with the number of samples run in parallel limited only by the capacity of the centrifuge. The method performance was evaluated based on adsorption and elution characteristics of several proteins (cytochrome c, lysozyme, myoglobin, and glucose oxidase) from 150 mM phosphate buffered saline (PBS) solutions. Protein concentration ranges of ~2 to 100 μg mL(-1) were employed and the recovery characteristics determined through UV-Vis absorbance spectrophotometry for protein quantification. The protein loading capacities across the range of proteins was ~1.5 μg for the 5 mg fiber tips. Average recoveries from PBS were determined for each protein sample; cytochrome c ~86%, lysozyme ~80%, myoglobin ~86%, and glucose oxidase ~89%. Recoveries from more complex matrices, synthetic urine and synthetic saliva, were determined to be ~90%. A 10× dilution study for a fixed 1 μg protein application yielded 94 ± 3.2% recoveries. The C-CP tips provided significantly higher recoveries for myoglobin in a 150 mM PBS matrix in comparison to a commercially available protein SPE product, with the added advantages of low cost, rapid processing, and reusability.
Collapse
Affiliation(s)
- Carolyn Q Burdette
- Biosystems Research Complex, Department of Chemistry, Clemson University, Clemson, SC 29634, USA
| | | |
Collapse
|
26
|
Wu J, Zhao C, Hu R, Lin W, Wang Q, Zhao J, Bilinovich SM, Leeper TC, Li L, Cheung HM, Chen S, Zheng J. Probing the weak interaction of proteins with neutral and zwitterionic antifouling polymers. Acta Biomater 2014; 10:751-60. [PMID: 24120846 DOI: 10.1016/j.actbio.2013.09.038] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 09/24/2013] [Accepted: 09/30/2013] [Indexed: 11/18/2022]
Abstract
Protein-polymer interactions are of great interest in a wide range of scientific and technological applications. Neutral poly(ethylene glycol) (PEG) and zwitterionic poly(sulfobetaine methacrylate) (pSBMA) are two well-known nonfouling materials that exhibit strong surface resistance to proteins. However, it still remains unclear or unexplored how PEG and pSBMA interact with proteins in solution. In this work, we examine the interactions between two model proteins (bovine serum albumin and lysozyme) and two typical antifouling polymers of PEG and pSBMA in aqueous solution using fluorescence spectroscopy, atomic force microscopy and nuclear magnetic resonance. The effect of protein:polymer mass ratios on the interactions is also examined. Collective data clearly demonstrate the existence of weak hydrophobic interactions between PEG and proteins, while there are no detectable interactions between pSBMA and proteins. The elimination of protein interaction with pSBMA could be due to an enhanced surface hydration of zwitterionic groups in pSBMA. New evidence is given to demonstrate the interactions between PEG and proteins, which are often neglected in the literature because the PEG-protein interactions are weak and reversible, as well as the structural change caused by hydrophobic interaction. This work provides a better fundamental understanding of the intrinsic structure-activity relationship of polymers underlying polymer-protein interactions, which are important for designing new biomaterials for biosensor, medical diagnostics and drug delivery applications.
Collapse
Affiliation(s)
- Jiang Wu
- State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA
| | - Chao Zhao
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA
| | - Rundong Hu
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA
| | - Weifeng Lin
- State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qiuming Wang
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA
| | - Jun Zhao
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA
| | | | - Thomas C Leeper
- Department of Chemistry, The University of Akron, Akron, OH 44325, USA
| | - Lingyan Li
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA
| | - Harry M Cheung
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA
| | - Shengfu Chen
- State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Jie Zheng
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA.
| |
Collapse
|
27
|
Lakra R, Saranya R, Lukka Thuyavan Y, Sugashini S, Begum K, Arthanareeswaran G. Separation of acetic acid and reducing sugars from biomass derived hydrosylate using biopolymer blend polyethersulfone membrane. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2013.08.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
28
|
Jhong JF, Venault A, Hou CC, Chen SH, Wei TC, Zheng J, Huang J, Chang Y. Surface zwitterionization of expanded poly(tetrafluoroethylene) membranes via atmospheric plasma-induced polymerization for enhanced skin wound healing. ACS APPLIED MATERIALS & INTERFACES 2013; 5:6732-6742. [PMID: 23795955 DOI: 10.1021/am401669q] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Development of bioinert membranes to prevent blood clotting, tissue adhesion, and bacterial attachment is important for the wound healing process. In this work, two wound-contacting membranes of expanded poly(tetrafluoroethylene) (ePTFE) grafted with zwitterionic poly(sulfobetaine methacrylate) (PSBMA) and hydrophilic poly(ethylene glycol) methacrylate (PEGMA) via atmospheric plasma-induced surface copolymerization were studied. The surface grafting chemical structure, hydrophilicity, and hydration capability of the membranes were determined to illustrate the correlations between bioadhesive properties and wound recovery of PEGylated and zwitterionic ePTFE membranes. Bioadhesive properties of the membranes were evaluated by the plasma protein adsorption, platelet activation, blood cell hemolysis, tissue cell adhesion, and bacterial attachment. It was found that the zwitterionic PSBMA-grafted ePTFE membrane presented high hydration capability and exhibited the best nonbioadhesive character in contact with protein solution, human blood, tissue cells, and bacterial medium. This work shows that zwitterionic membrane dressing provides a moist environment, essential for "deep" skin wound healing observed from the animal rat model in vivo and permits a complete recovery after 14 days, with histology of repaired skin similar to that of normal skin tissue. This work suggests that the bioinert nature of grafted PSBMA polymers obtained by controlling grafting structures gives them great potential in the molecular design of antibioadhesive membranes for use in skin tissue regeneration.
Collapse
Affiliation(s)
- Jheng-Fong Jhong
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan University, Chung Li, Taoyuan 320, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
29
|
Yuan H, Ren J, Cheng L, Shen L. Preparation and characterization of a poly(vinyl alcohol)/tetraethoxysilane ultrafiltration membrane by a sol-gel method. J Appl Polym Sci 2013. [DOI: 10.1002/app.39502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | - Liang Cheng
- Chemical Engineering Research Center; East China University of Science and Technology; Shanghai; 200237; China
| | | |
Collapse
|
30
|
Szymczyk A, Dirir YI, Picot M, Nicolas I, Barrière F. Advanced electrokinetic characterization of composite porous membranes. J Memb Sci 2013. [DOI: 10.1016/j.memsci.2012.11.076] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
31
|
Akkas T, Citak C, Sirkecioglu A, Güner FS. Which is more effective for protein adsorption: surface roughness, surface wettability or swelling? Case study of polyurethane films prepared from castor oil and poly(ethylene glycol). POLYM INT 2012. [DOI: 10.1002/pi.4408] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Tugba Akkas
- Istanbul Technical University; Department of Chemical Engineering; Maslak 34469 Istanbul Turkey
| | - Cansu Citak
- Istanbul Technical University; Department of Chemical Engineering; Maslak 34469 Istanbul Turkey
| | - Ahmet Sirkecioglu
- Istanbul Technical University; Department of Chemical Engineering; Maslak 34469 Istanbul Turkey
| | - F Seniha Güner
- Istanbul Technical University; Department of Chemical Engineering; Maslak 34469 Istanbul Turkey
| |
Collapse
|
32
|
A versatile route to modify polyethersulfone membranes by chemical reduction of aryldiazonium salts. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.06.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
33
|
Tran AT, Patterson DA, James BJ. Investigating the feasibility of using polysulfone–montmorillonite composite membranes for protein adsorption. J FOOD ENG 2012. [DOI: 10.1016/j.jfoodeng.2012.03.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
34
|
Boulares-Pender A, Thomas I, Prager A, Schulze A. Surface modification of polyamide and poly(vinylidene fluoride) membranes. J Appl Polym Sci 2012. [DOI: 10.1002/app.38145] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
35
|
Enzyme-catalyzed modification of PES surfaces: reduction in adsorption of BSA, dextrin and tannin. J Colloid Interface Sci 2012; 378:191-200. [PMID: 22560487 DOI: 10.1016/j.jcis.2012.04.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 04/10/2012] [Accepted: 04/11/2012] [Indexed: 11/22/2022]
Abstract
Poly(ethersulfone) (PES) can be modified in a flexible manner using mild, environmentally benign components such as 4-hydroxybenzoic acid and gallic acid, which can be attached to the surface via catalysis by the enzyme laccase. This leads to grafting of mostly linear polymeric chains (for 4-hydroxybenzoic acid, and for gallic acid at low concentration and short modification time) and of networks (for gallic acid at high concentration and long exposure time). The reaction is stopped at a specific time, and the modified surfaces are tested for adsorption of BSA, dextrin and tannin using in-situ reflectometry and AFM imaging. At short modification times, the adsorption of BSA, dextrin and tannin is significantly reduced. However, at longer modification times, the adsorption increases again for both substrates. As the contact angle on modified surfaces at short modification times is reduced (indicative of more hydrophilic surfaces), and keeps the same low values at longer modification times, hydrophilicity is not the only determining factor for the measured differences. At longer modification times, intra-layer reactivity will increase the amount of cross-linking (especially for gallic acid), branching (for 4-hydroxybenzoic acid) and/or collapse of the polymer chains. This leads to more compact layers, which leads to increased protein adsorption. The modifications were shown to have clear potential for reduction of fouling by proteins, polysaccharides, and polyphenols, which could be related to the surface morphology.
Collapse
|
36
|
Rajesh S, Jayalakshmi A, Senthilkumar S, Sankar HSH, Mohan DR. Performance Evaluation of Poly(amide-imide) Incorporated Cellulose Acetate Ultrafiltration Membranes in the Separation of Proteins and Its Fouling Propensity by AFM Imaging. Ind Eng Chem Res 2011. [DOI: 10.1021/ie201181h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sahadevan Rajesh
- Membrane Laboratory, Department of Chemical Engineering, Anna University Chennai, Chennai-600 025, India
| | - Ayyavoo Jayalakshmi
- Membrane Laboratory, Department of Chemical Engineering, Anna University Chennai, Chennai-600 025, India
| | - Sundararaj Senthilkumar
- Membrane Laboratory, Department of Chemical Engineering, Anna University Chennai, Chennai-600 025, India
| | - H. S. Hari Sankar
- Inter University Center for Development of Marine Bio-Technology, School of Marine Sciences, CUSAT, Cochin-682 016, India
| | - Doraiswamy R. Mohan
- Membrane Laboratory, Department of Chemical Engineering, Anna University Chennai, Chennai-600 025, India
| |
Collapse
|
37
|
Chantiwas R, Park S, Soper SA, Kim BC, Takayama S, Sunkara V, Hwang H, Cho YK. Flexible fabrication and applications of polymer nanochannels and nanoslits. Chem Soc Rev 2011; 40:3677-702. [PMID: 21442106 PMCID: PMC4773912 DOI: 10.1039/c0cs00138d] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Fluidic devices that employ nanoscale structures (<100 nm in one or two dimensions, slits or channels, respectively) are generating great interest due to the unique properties afforded by this size domain compared to their micro-scale counterparts. Examples of interesting nanoscale phenomena include the ability to preconcentrate ionic species at extremely high levels due to ion selective migration, unique molecular separation modalities, confined environments to allow biopolymer stretching and elongation and solid-phase bioreactions that are not constrained by mass transport artifacts. Indeed, many examples in the literature have demonstrated these unique opportunities, although predominately using glass, fused silica or silicon as the substrate material. Polymer microfluidics has established itself as an alternative to glass, fused silica, or silicon-based fluidic devices. The primary advantages arising from the use of polymers are the diverse fabrication protocols that can be used to produce the desired structures, the extensive array of physiochemical properties associated with different polymeric materials, and the simple and robust modification strategies that can be employed to alter the substrate's surface chemistry. However, while the strengths of polymer microfluidics is currently being realized, the evolution of polymer-based nanofluidics has only recently been reported. In this critical review, the opportunities afforded by polymer-based nanofluidics will be discussed using both elastomeric and thermoplastic materials. In particular, various fabrication modalities will be discussed along with the nanometre size domains that they can achieve for both elastomer and thermoplastic materials. Different polymer substrates that can be used for nanofluidics will be presented along with comparisons to inorganic nanodevices and the consequences of material differences on the fabrication and operation of nanofluidic devices (257 references).
Collapse
Affiliation(s)
- Rattikan Chantiwas
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | | | | | | | | | | | | | | |
Collapse
|
38
|
Nady N, Schroën K, Franssen MCR, Lagen BV, Murali S, Boom RM, Mohyeldin MS, Zuilhof H. Mild and highly flexible enzyme-catalyzed modification of poly(ethersulfone) membranes. ACS APPLIED MATERIALS & INTERFACES 2011; 3:801-810. [PMID: 21344870 DOI: 10.1021/am101155e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Poly(ethersulfone) (PES) membranes are widely used in industry for separation and purification purposes. However, the drawback of this type of membranes is fouling by proteins. For that reason, modification of PES membranes has been studied to enhance their protein repellence. This paper presents the first example of enzyme-catalyzed modification of PES membranes. Various phenolic acids (enzyme substrates) were bound to a membrane under very mild conditions (room temperature, water, nearly neutral pH) using only laccase from Trametes versicolor as catalyst. The extent of modification, monitored, for example, by the coloration of the modified membranes, can be tuned by adjusting the reaction conditions. The most significant results were obtained with 4-hydroxybenzoic acid and gallic acid as substrates. The presence of a covalently bound layer of 4-hydroxybenzoic acid on the grafted membranes was confirmed by X-ray photoelectron spectroscopy (XPS), infrared reflection absorption spectroscopy (IRRAS), and NMR. In the case of gallic acid, PES membrane modification is mainly caused by adsorption of enzymatically formed homopolymer. The ionization potential of the substrates, and the electronic energies and spin densities of the radicals that are intermediates in the attachment reaction were calculated (B3LYP/6-311G(d,p)) to determine the reactive sites and the order of reactivity of radical substrates to couple with the PES membrane. The calculated order of reactivity of the substrates is in line with the experimental observations. The calculated spin densities in the phenolic radicals are highest at the oxygen atom, which is in line with the formation of ether linkages as observed by IRRAS. The liquid fluxes of the modified membranes are hardly influenced by the grafted layers, in spite of the presence of a substantial and stable new layer, which opens a range of application possibilities for these modified membranes.
Collapse
Affiliation(s)
- Norhan Nady
- Food Process Engineering Group, Wageningen University, P.O. Box 8129, 6700 EV Wageningen, The Netherlands
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Yilmaz G, Toiserkani H, Demirkol DO, Sakarya S, Timur S, Yagci Y, Torun L. Modification of polysulfones by click chemistry: Amphiphilic graft copolymers and their protein adsorption and cell adhesion properties. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24424] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
40
|
Peeva PD, Pieper T, Ulbricht M. Tuning the ultrafiltration properties of anti-fouling thin-layer hydrogel polyethersulfone composite membranes by suited crosslinker monomers and photo-grafting conditions. J Memb Sci 2010. [DOI: 10.1016/j.memsci.2010.07.016] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
41
|
Khulbe KC, Feng C, Matsuura T. The art of surface modification of synthetic polymeric membranes. J Appl Polym Sci 2010. [DOI: 10.1002/app.31108] [Citation(s) in RCA: 211] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
42
|
Influence of surface modifying macromolecules on the surface properties of poly(ether sulfone) ultra-filtration membranes. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2009.04.017] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
43
|
Lin YC, Brayfield CA, Gerlach JC, Rubin JP, Marra KG. Peptide modification of polyethersulfone surfaces to improve adipose-derived stem cell adhesion. Acta Biomater 2009; 5:1416-24. [PMID: 19129013 DOI: 10.1016/j.actbio.2008.11.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2008] [Revised: 11/24/2008] [Accepted: 11/25/2008] [Indexed: 01/15/2023]
Abstract
Polyethersulfone (PES) is a nondegradable, biocompatible, synthetic polymer that is commonly utilized as a membrane material for applications such as hemodialysis, ultrafiltration and bioreactor technology. Various studies have shown surface modification to be a valuable tool in the development of nondegradable materials which promote cell adhesion. Cells of interest include adipose-derived stem cells (ASCs). ASCs are multipotent mesenchymal stem cells that are useful for various regenerative medicine applications. In this study, we hypothesized that PES surfaces modified with a peptide sequence based from fibronectin, such as Arg-Gly-Asp (RGD), Arg-Gly-Asp-Ser and Gly-Arg-Gly-Asp-Ser, would increase ASC adhesion compared to unmodified PES surfaces. The synthetic peptides were covalently bonded to amine-modified PES surfaces using 1-ethyl-3-(dimethylaminopropyl) carbodiimide. The surfaces were characterized using a ninhydrin assay and contact angle measurements. The ninhydrin assay confirmed the presence of amine groups on the surface of peptide-treated PES disks. Advancing water contact angles were analyzed to detect changes in the hydrophilicity of the polymer surfaces, and results indicated our PES membranes had excellent hydrophilicity. The attachment and proliferation of human ASCs was assessed and RGD-treated surfaces resulted in a higher number of attached ASCs after 6 and 48 h, as compared to unmodified PES surfaces. Additionally, varying concentrations of the RGD peptide sequence concentration were examined. These results indicate that PES membranes modified with the RGD peptide sequence can be utilized for enhanced ASC attachment in biomedical applications.
Collapse
Affiliation(s)
- Yen-Chih Lin
- Division of Plastic Surgery, Department of Surgery, University of Pittsburgh, 1655E Biomedical Science Tower, 200 Lothrop Street, Pittsburgh, PA 15261, USA
| | | | | | | | | |
Collapse
|