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Zhu S, Li Y, Chen X, Zhu Z, Li S, Song J, Zheng Z, Cong X, Cheng S. Co-Immobilization of Alcalase/Dispase for Production of Selenium-Enriched Peptide from Cardamine violifolia. Foods 2024; 13:1753. [PMID: 38890981 PMCID: PMC11172333 DOI: 10.3390/foods13111753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/20/2024] Open
Abstract
Enzymatically derived selenium-enriched peptides from Cardamine violifolia (CV) can serve as valuable selenium supplements. However, the industrial application of free enzyme is impeded by its limited stability and reusability. Herein, this study explores the application of co-immobilized enzymes (Alcalase and Dispase) on amino resin for hydrolyzing CV proteins to produce selenium-enriched peptides. The successful enzyme immobilization was confirmed through scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and Fourier-transform infrared spectroscopy (FTIR). Co-immobilized enzyme at a mass ratio of 5:1 (Alcalase/Dispase) exhibited the smallest pore size (7.065 nm) and highest activity (41 U/mg), resulting in a high degree of hydrolysis of CV protein (27.2%), which was obviously higher than the case of using free enzymes (20.7%) or immobilized Alcalase (25.8%). In addition, after a month of storage, the co-immobilized enzyme still retained a viability level of 41.93%, showing fairly good stability. Encouragingly, the selenium-enriched peptides from co-immobilized enzyme hydrolysis exhibited uniform distribution of selenium forms, complete amino acid fractions and homogeneous distribution of molecular weight, confirming the practicality of using co-immobilized enzymes for CV protein hydrolysis.
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Affiliation(s)
- Shiyu Zhu
- School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, 36 Huanhu Middle Road, Wuhan 430048, China; (S.Z.); (Y.L.); (X.C.); (S.L.); (X.C.); (S.C.)
| | - Yuheng Li
- School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, 36 Huanhu Middle Road, Wuhan 430048, China; (S.Z.); (Y.L.); (X.C.); (S.L.); (X.C.); (S.C.)
| | - Xu Chen
- School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, 36 Huanhu Middle Road, Wuhan 430048, China; (S.Z.); (Y.L.); (X.C.); (S.L.); (X.C.); (S.C.)
| | - Zhenzhou Zhu
- School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, 36 Huanhu Middle Road, Wuhan 430048, China; (S.Z.); (Y.L.); (X.C.); (S.L.); (X.C.); (S.C.)
| | - Shuyi Li
- School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, 36 Huanhu Middle Road, Wuhan 430048, China; (S.Z.); (Y.L.); (X.C.); (S.L.); (X.C.); (S.C.)
| | - Jingxin Song
- Systems Engineering Institute, Beijing 100010, China;
| | | | - Xin Cong
- School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, 36 Huanhu Middle Road, Wuhan 430048, China; (S.Z.); (Y.L.); (X.C.); (S.L.); (X.C.); (S.C.)
| | - Shuiyuan Cheng
- School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, 36 Huanhu Middle Road, Wuhan 430048, China; (S.Z.); (Y.L.); (X.C.); (S.L.); (X.C.); (S.C.)
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2
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Imbia AS, Ounkaew A, Mao X, Zeng H, Liu Y, Narain R. Mussel-Inspired Polymer-Based Coating Technology for Antifouling and Antibacterial Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:10957-10965. [PMID: 38752656 DOI: 10.1021/acs.langmuir.4c00326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Zwitterionic coatings provide a promising antifouling strategy against biofouling adhesion. Quaternary ammonium cationic polymers can effectively kill bacteria on the surface, owing to their positive charges. This strategy can avoid the release of toxic biocides, which is highly desirable for constructing coatings for biomedical devices. The present work aims to develop a facile method by covalently grafting zwitterionic and cationic copolymers containing aldehydes to the remaining amine groups of self-polymerized dopamine. Reversible addition-fragmentation chain transfer polymerization was used to copolymerize either zwitterionic 2-methacryloyloxyethyl phosphorylcholine monomer (MPC) or cationic 2-(methacryloyloxy)ethyl trimethylammonium monomer (META) with 4-formyl phenyl methacrylate monomer (FPMA), and the formed copolymers poly(MPC-st-FPMA) and poly(META-st-FPMA) are denoted as MPF and MTF, respectively. MPF and MTF copolymers were then covalently grafted onto the amino groups of polydopamine-coated surfaces. PDA/MPF/MTF-coated surfaces exhibited antibacterial and antifouling properties against S. aureus, E. coli, and bovine serum albumin protein. In addition, they showed excellent viability of normal human lung fibroblast cells MRC-5. We expect the facile surface modification strategy discussed here to be applicable to medical device manufacturing.
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Affiliation(s)
- Adel S Imbia
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Artjima Ounkaew
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Xiaohui Mao
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Yang Liu
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Ravin Narain
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
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Jia B, Xia T, Wang X, Xu Y, Li B. Investigation of biosensing properties in magnetron sputtered metallized UV-curable polymer microneedle electrodes. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:1008-1030. [PMID: 38386313 DOI: 10.1080/09205063.2024.2314360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 01/08/2024] [Indexed: 02/23/2024]
Abstract
Direct management and assessment of metal film properties applied to polymer microneedle (MN) biosensors remains difficult due to constraints inherent to their morphology. By simplifying the three-dimensional structure of MNs and adjusting the deposition time, different thicknesses of Au films were deposited on the UV-cured polymer planar and MN substrates. Several properties relevant to the biosensing of the Au films grown on the polymer surfaces were investigated. The results demonstrate the successful deposition of pure and stable Au nanoparticles onto the surface of UV-curable polymer materials. Initially, Au islands formed within the first minute of deposition; however, as the sputtering time extended, these islands transformed into Au nanoparticle films and disappeared. The hydrophilicity of the surface remains unchanged, while the surface resistance of the thin film decreases with increasing thickness, and the adhesion to the substrate decreases as the thickness increases. In short, a sputtering time of 5-6 min results in Au films with a thickness of 100-200 nm, which exhibit exceptional comprehensive biosensing performance. Additionally, MNs made of Au/UV-curable polymers and produced using magnetron sputtering maintain their original shape, enhance their mechanical characteristics, and gain new functionalities. The Au/UV-curable polymer MNs exhibited remarkable electrode performance despite being soaked in a 37 °C PBS solution for 14 days. These discoveries have important implications in terms of decreasing the dependence on valuable metals in MN biosensors, lowering production expenses, and providing guidance for the choice and design of materials for UV-curable polymer MN metallization films.
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Affiliation(s)
- Baoling Jia
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal under the Province and the Ministry of Education, Lanzhou University of Technology, Lanzhou, China
| | - Tiandong Xia
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal under the Province and the Ministry of Education, Lanzhou University of Technology, Lanzhou, China
| | - Xiaohui Wang
- Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, China
| | - Yangtao Xu
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal under the Province and the Ministry of Education, Lanzhou University of Technology, Lanzhou, China
| | - Bei Li
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China
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Chen C, Yang Y, Lee CH, Takizawa S, Zhang Z, Ng HY, Hou LA. Functionalization of seawater reverse osmosis membrane with quorum sensing inhibitor to regulate microbial community and mitigate membrane biofouling. WATER RESEARCH 2024; 253:121358. [PMID: 38402750 DOI: 10.1016/j.watres.2024.121358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 02/06/2024] [Accepted: 02/21/2024] [Indexed: 02/27/2024]
Abstract
Membrane biofouling is a challenge to be solved for the stable operation of the seawater reverse osmosis (SWRO) membrane. This study explored the regulation mechanism of quorum sensing (QS) inhibition on microbial community composition and population-level behaviors in seawater desalination membrane biofouling. A novel antibiofouling SWRO membrane (MA_m) by incorporating one of quorum sensing inhibitors (QSIs), methyl anthranilate (MA) was prepared. It exhibited enhanced anti-biofouling performance than the exogenous addition of QSIs, showing long-term stability and alleviating 22 % decrease in membrane flux compared with the virgin membrane. The results observed that dominant bacteria Epsilon- and Gamma-proteobacteria (Shewanella, Olleya, Colwellia, and Arcobacter), which are significantly related to (P ≤ 0.01) the metabolic products (i.e., polysaccharides, proteins and eDNA), are reduced by over 80 % on the MA_m membrane. Additionally, the introduction of MA has a more significant impact on the QS signal-sensing pathway through binding to the active site of the transmembrane sensor receptor. It effectively reduces the abundance of genes encoding QS and extracellular polymeric substance (EPS) (exopolysaccharides (i.e., galE and nagB) and amino acids (i.e., ilvE, metH, phhA, and serB)) by up to 50 % and 30 %, respectively, resulting in a reduction of EPS by more than 50 %, thereby limiting the biofilm formation on the QSI-modified membrane. This study provides novel insights into the potential of QSIs to control consortial biofilm formation in practical SWRO applications.
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Affiliation(s)
- Chao Chen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yu Yang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Chung-Hak Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Satoshi Takizawa
- Department of Urban Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Zhenghua Zhang
- Institute of Environmental Engineering & Nano-Technology, Tsinghua-Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China
| | - How Yong Ng
- Center for Water Research, Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai 519087, China; Environmental Research Institute, National University of Singapore, 5A Engineering Drive 1, Singapore 117411, Singapore
| | - Li-An Hou
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
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Hansda B, Mishra S, Ghosh A, Das B, Biswas T, Mondal TK, Srivastava B, Mondal S, Roy D, Mandal B. Chemically Bonded Pepsin via Its Inert Center to Diazo Functionalized Silica Gel through Multipoint Attachment Mode: A Way of Restoring Biocatalytic Sustainability over "Wider pH" Range. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2146-2164. [PMID: 38240266 DOI: 10.1021/acs.langmuir.3c03113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
Proteolytic enzymes play a pivotal role in the industry. Still, because of denaturation, the extensive applicability at their level of best catalytic efficiency over a more comprehensive pH range, particularly in alkaline conditions over pH 8, has not been fully developed. On the other hand, enzyme immobilization following a suitable protocol is a long pending issue that determines the conformational stability, specificity, selectivity, enantioselectivity, and activity of the native enzymes at long-range pH. As a bridge between these two findings, in an attempt at a freezing temperature 273-278 K at an alkaline pH, the diazo-functionalized silica gel (SG) surface has been used to rapidly diazo couple pepsin through its inert center, the O-carbon of the phenolic -OH of surface-occupied Tyr residues in a multipoint mode: when all the various protein groups, viz., amino, thiol, phenol, imidazole, carboxy, etc., in the molecular sequence including those belonging to the active sites, remain intact, the inherent inbuilt interactions among themselves remain. Thereby, the macromolecule's global conformation and helicity preserve the status quo. The dimension of the SG-enzyme conjugate confirms as {Si(OSi)4 (H2O)1.03}n {-O-Si(CH3)2-O-C6H4-N═N+}4·{pepsin}·yH2O; where the values of n and y have been determined respectively as 347 and 188. The material performs the catalytic activity much better at 7-8.5 than at pH 2-3.5 and continues for up to six months without any appreciable change.
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Affiliation(s)
- Biswajit Hansda
- Analytical and Bio-analytical Laboratory, Department of Chemistry, Visva-Bharati, Santiniketan, West Bengal 731235, India
| | - Shailja Mishra
- Analytical and Bio-analytical Laboratory, Department of Chemistry, Visva-Bharati, Santiniketan, West Bengal 731235, India
| | - Ankit Ghosh
- Analytical and Bio-analytical Laboratory, Department of Chemistry, Visva-Bharati, Santiniketan, West Bengal 731235, India
| | - Basudev Das
- Analytical and Bio-analytical Laboratory, Department of Chemistry, Visva-Bharati, Santiniketan, West Bengal 731235, India
| | - Tirtha Biswas
- Analytical and Bio-analytical Laboratory, Department of Chemistry, Visva-Bharati, Santiniketan, West Bengal 731235, India
| | - Tanay K Mondal
- Analytical and Bio-analytical Laboratory, Department of Chemistry, Visva-Bharati, Santiniketan, West Bengal 731235, India
| | - Bhavya Srivastava
- The West Bengal National University of Juridical Sciences, Dr. Ambedkar Bhavan, Kolkata 700098, India
| | - Sneha Mondal
- Analytical and Bio-analytical Laboratory, Department of Chemistry, Visva-Bharati, Santiniketan, West Bengal 731235, India
| | - Dipika Roy
- Department of Chemistry, Jadavpur University, Main Campus 188, Raja S.C. Mallick Rd, Kolkata, West Bengal700032, India
| | - Bhabatosh Mandal
- Analytical and Bio-analytical Laboratory, Department of Chemistry, Visva-Bharati, Santiniketan, West Bengal 731235, India
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Marchesi D'Alvise T, Sunder S, Hasler R, Moser J, Knoll W, Synatschke CV, Harvey S, Weil T. Preparation of Ultrathin and Degradable Polymeric Films by Electropolymerization of 3-Amino-l-tyrosine. Macromol Rapid Commun 2023; 44:e2200332. [PMID: 35689352 DOI: 10.1002/marc.202200332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/25/2022] [Indexed: 11/07/2022]
Abstract
Bioderived polymers are one of many current research areas that promise a sustainable future. Due to their unique properties, the bioderived polymer polydopamine has been in the spotlight over the last decades. Its ability to adhere to virtually any surface and its stability over a wide pH range as well as in several organic solvents make it a suitable candidate for various applications like coatings and biosensors. However, strong light absorption over a broad range of wavelengths and high quenching efficiency limit its uses. Therefore, new bioderived polymers with similar features to polydopamine but without fluorescence quenching properties are highly desirable. Herein, the electropolymerization of a bioderived analog of dopamine, 3-amino-l-tyrosine, is demonstrated. The resulting polymer, poly(amino-l-tyrosine), exhibits several characteristics complementary to or even exceeding those of polydopamine and its analog, polynorepinephrine, rendering poly(amino-l-tyrosine) attractive for the development of sensors and photoactive devices. Cyclic voltammetry, spectro-electrochemistry, and electrochemical quartz crystal microbalance measurements are applied to study the electrodeposition of this material, and the resulting films are compared to polydopamine and polynorepinephrine. Impedance spectroscopy reveals increased ion permeability of poly(amino-l-tyrosine) compared to polydopamine and polynorepinephrine. Moreover, the reduced fluorescence quenching of poly(amino-l-tyrosine) supports its use as coating for biosensors and organic semiconductors.
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Affiliation(s)
- Tommaso Marchesi D'Alvise
- Department for Synthesis of Macromolecules, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Sruthi Sunder
- Department for Synthesis of Macromolecules, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Roger Hasler
- Austrian Institute of Technology GmbH, Biosensor Technologies, Tulln, 3430, Austria
| | - Julia Moser
- Department for Synthesis of Macromolecules, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Wolfgang Knoll
- Austrian Institute of Technology GmbH, Biosensor Technologies, Tulln, 3430, Austria
| | - Christopher V Synatschke
- Department for Synthesis of Macromolecules, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Sean Harvey
- Department for Synthesis of Macromolecules, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Tanja Weil
- Department for Synthesis of Macromolecules, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
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Zhang W, Liu R, Yang X, Nian B, Hu Y. Immobilization of laccase on organic—inorganic nanocomposites and its application in the removal of phenolic pollutants. Front Chem Sci Eng 2023. [DOI: 10.1007/s11705-022-2277-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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8
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Popkov A, Su Z, Sigurdardóttir SB, Luo J, Malankowska M, Pinelo M. Engineering polyelectrolyte multilayer coatings as a strategy to optimize enzyme immobilization on a membrane support. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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9
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Duan Y, Cheng H. Preparation of immobilized pepsin for extraction of collagen from bovine hide. RSC Adv 2022; 12:34548-34556. [PMID: 36545603 PMCID: PMC9713359 DOI: 10.1039/d2ra05744a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 11/18/2022] [Indexed: 12/05/2022] Open
Abstract
In the extraction of collagens from mammalian tissues, the free pepsin used in the acid-pepsin extraction system is hard to recycle, and there is a risk of enzyme protein contamination in the extracted collagen products, which limits their applications. To solve this problem, an immobilized pepsin was successfully prepared via the covalent crosslinking of glutaraldehyde using a 3-aminopropyltriethoxysilane (APTES) surface modified silica clay as the support. The immobilized pepsin was applied for the extraction of collagen from bovine hide. The optimal immobilization process involves incubating pepsin with an initial concentration of 35 mg mL-1 and glutaraldehyde with 5% activated APTES modified silica clay at 25 °C for 60 min, by which the loading amount of pepsin was 220 mg g-1 and the activity of the immobilized pepsin was 4.2 U mg-1. The collagen extracted using acetic acid and the immobilized pepsin method retained its complete triple helix structure. This research thus details an effective separation method using pepsin for extraction of collagen via an acetic acid-enzyme method, where the extracted collagen may be a candidate for use in biomaterial applications.
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Affiliation(s)
- Youdan Duan
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan UniversityChengdu610065China
| | - Haiming Cheng
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan UniversityChengdu610065China,National Engineering Research Center of Clean Technology in Leather Industry, Sichuan UniversityChengdu 610065China
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Ming S, Li S, Chen Z, Chen X, Wang F, Deng S, Marszałek K, Zhu Z, Zhang W, Barba FJ. Bioinspired Lipase Immobilized Membrane for Improving Hesperidin Lipophilization. Antioxidants (Basel) 2022; 11:1906. [PMID: 36290627 PMCID: PMC9598331 DOI: 10.3390/antiox11101906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 07/29/2023] Open
Abstract
Lipophilization is a promising way to improve the bioavailability of flavonoids. However, the traditional enzymatic esterification methods are time-consuming, and present low yields and purity. Herein, a novel membrane-based lipophilization technology-bioinspired lipase immobilized membranes (BLIMs), including CAL-B@PES, CAL-B@PDA/PES and GA/CAL-B@PDA/PES- were fabricated to improve the antioxidant flavanone glycoside hesperidin lipophilization. Via reverse filtration, PDA coating and GA crosslinking, Candida antarctica lipase B (CAL-B) was stably immobilized on membrane to fabricate BLIMs. Among the three BLIMs, GA/CAL-B@PDA/PES had the greatest enzyme activity and enzyme loading, the strongest tolerance of changes in external environmental conditions (temperatures, pH, heating time, storage time and numbers of cycles) and the highest hesperidin esterification efficiency. Moreover, the optimal operating condition for GA/CAL-B@PDA/PES fabrication was the CAL-B concentration of 0.36 mg/mL, operation pressure of 2 bar, GA concentration of 5% and crosslinking time of 1 h. Afterwards, the hesperidin esterification process did not affect the micromorphology of BLIM, but clearly improved the BLIM permeability and esterified product efficiency. The present study reveals the fabrication mechanism of BLIMs and offers insights into the optimizing strategy that governs the membrane-based lipophilization technology process.
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Affiliation(s)
- Shanxiu Ming
- National R&D Center for Se-Rich Agricultural Products Processing Technology, Hubei Engineering Research Center for Deep Processing of Green Se-Rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430205, China
| | - Shuyi Li
- National R&D Center for Se-Rich Agricultural Products Processing Technology, Hubei Engineering Research Center for Deep Processing of Green Se-Rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430205, China
| | - Zhe Chen
- National R&D Center for Se-Rich Agricultural Products Processing Technology, Hubei Engineering Research Center for Deep Processing of Green Se-Rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430205, China
| | - Xujun Chen
- National R&D Center for Se-Rich Agricultural Products Processing Technology, Hubei Engineering Research Center for Deep Processing of Green Se-Rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430205, China
| | - Feifei Wang
- National R&D Center for Se-Rich Agricultural Products Processing Technology, Hubei Engineering Research Center for Deep Processing of Green Se-Rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430205, China
| | - Shaonan Deng
- Hubei Nanbai Shengtainongye Co., Ltd., Enshi 445000, China
| | - Krystian Marszałek
- Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology—State Research Institute, Department of Fruit and Vegetable Product Technology, 36 Rakowiecka St., 02-532 Warsaw, Poland
- Department of Food Technology and Human Nutrition, Institute of Food Technology and Nutrition, College of Natural Science, University of Rzeszow, Zelwerowicza 2D, 35-601 Rzeszow, Poland
| | - Zhenzhou Zhu
- National R&D Center for Se-Rich Agricultural Products Processing Technology, Hubei Engineering Research Center for Deep Processing of Green Se-Rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430205, China
| | - Wenxiang Zhang
- Biological and Environmental Science and Engineering Division, Water Desalination and Reuse Research Center, King Abdullah University of Science and Technology, Riyadh 11543, Saudi Arabia
| | - Francisco J. Barba
- Department of Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine, Faculty of Pharmacy, University of Valencia, 46100 Valencia, Spain
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11
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Pandey RP, Kallem P, Hegab HM, Rasheed PA, Banat F, Hasan SW. Cross-linked laminar graphene oxide membranes for wastewater treatment and desalination: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115367. [PMID: 35636111 DOI: 10.1016/j.jenvman.2022.115367] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 05/10/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Two-dimensional (2D) lamellar graphene oxide (GO) membranes are emerging as attractive materials for molecular separation in water treatment because of their single atomic thickness, excellent hydrophilicity, large specific surface areas, and controllable properties. To yet, commercialization of GO laminar membranes has been hindered by their propensity to swell in hydrated conditions. Thus, chemical crosslinking of GO sheets with the polymer matrix is used to improve GO membrane hydration stability. This review focuses on pertinent themes such as how chemical crosslinking improves the hydration stability, separation performance, and antifouling properties of GO membranes.
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Affiliation(s)
- Ravi P Pandey
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates.
| | - Parashuram Kallem
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Hanaa M Hegab
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - P Abdul Rasheed
- Department of Biological Sciences and Engineering, Indian Institute of Technology Palakkad, Palakkad, 678 557, Kerala, India
| | - Fawzi Banat
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Shadi W Hasan
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates.
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12
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Xie S, Li S, Cao W, Mo C, Zhang Z, Huang K, Li X. Bacteria-Templated and Dual Enzyme-Powered Microcapsule Motors To Promote Thrombus Penetration and Thrombolytic Efficacy. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37553-37565. [PMID: 35948498 DOI: 10.1021/acsami.2c11213] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Antithrombotic therapy is confronted with short half-lives of thrombolytic agents and high bleeding risks. Challenges remain in the development of drug delivery systems for thorough destruction of thrombi and timely restoration of blood flow while minimizing side effects. Herein, polydopamine capsule-like micromotors with urokinase (uPA) loadings and Arg-Gly-Asp (RGD) grafts (r-u@PCM) were constructed using rod-shaped bacteria as the template, and one single opening was created on each capsule through bacterial ghost (BG) formation. Glucose oxidase and catalase were encapsulated in the large cavity of microcapsules, and their successive oxidation of glucose produced O2 bubbles, which ejected out through the single opening to propel the motion of r-u@PCM. In vitro targeting testing of r-u@PCM shows significant higher accumulations on the activated platelets than those without RGD grafts (u@PCM, 7 folds) or without enzyme loadings (r-u@PC, 11 folds). Compared with the major distribution of r-u@PC on the clot surface, r-u@PCM efficiently penetrates into clots with dense fibrin networks, and near-infrared (NIR) irradiation (r-u@PCM/NIR) promotes thrombus infiltration through increasing uPA release and thermolysis of the networks. Pharmacokinetic study shows that the loading of uPA in r-u@PCM extends the terminal half-life from 24 min to 5.5 h and the bioavailability increased 13 times. In a hindlimb venous thrombosis model, r-u@PCM/NIR treatment promotes uPA accumulations in thrombi and disrupts all the thrombi after 8 h with a full recovery of blood flows. Effective thrombolysis is also achieved even after reducing the uPA dose 5 times. Thus, this is the first attempt to fabricate rod-shaped microcapsule motors through a biologically derived method, including bacterial templating and BG formation-induced opening generation. r-u@PCM/NIR treatment promotes thrombolysis through the photothermal effect, self-propelled infiltration into thrombi, and accelerated local release of uPA, providing a prerequisite for reducing uPA dose and bleeding side effects.
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Affiliation(s)
- Songzhi Xie
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
- Key Laboratory for Meat Processing of Sichuan Province, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China
| | - Shang Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
- Jiulongpo Center for Disease Control and Prevention of Chongqing, Chongqing 400039, P. R. China
| | - Wenxiong Cao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Chuanfei Mo
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Zhanlin Zhang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Kun Huang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Xiaohong Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
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Morellon-Sterling R, Tavano O, Bolivar JM, Berenguer-Murcia Á, Vela-Gutiérrez G, Sabir JSM, Tacias-Pascacio VG, Fernandez-Lafuente R. A review on the immobilization of pepsin: A Lys-poor enzyme that is unstable at alkaline pH values. Int J Biol Macromol 2022; 210:682-702. [PMID: 35508226 DOI: 10.1016/j.ijbiomac.2022.04.224] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 11/05/2022]
Abstract
Pepsin is a protease used in many different applications, and in many instances, it is utilized in an immobilized form to prevent contamination of the reaction product. This enzyme has two peculiarities that make its immobilization complex. The first one is related to the poor presence of primary amino groups on its surface (just one Lys and the terminal amino group). The second one is its poor stability at alkaline pH values. Both features make the immobilization of this enzyme to be considered a complicated goal, as most of the immobilization protocols utilize primary amino groups for immobilization. This review presents some of the attempts to get immobilized pepsin biocatalyst and their applications. The high density of anionic groups (Asp and Glu) make the anion exchange of the enzyme simpler, but this makes many of the strategies utilized to immobilize the enzyme (e.g., amino-glutaraldehyde supports) more related to a mixed ion exchange/hydrophobic adsorption than to real covalent immobilization. Finally, we propose some possibilities that can permit not only the covalent immobilization of this enzyme, but also their stabilization via multipoint covalent attachment.
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Affiliation(s)
- Roberto Morellon-Sterling
- Departamento de Biocatálisis, ICP-CSIC, Marie Curie 2, Campus UAM-CSIC Cantoblanco, 28049 Madrid, Spain; Student of Departamento de Biología Molecular, Universidad Autónoma de Madrid, Darwin 2, Campus UAM-CSIC, Cantoblanco, 28049 Madrid, Spain
| | - Olga Tavano
- Faculty of Nutrition, Alfenas Federal Univ., 700 Gabriel Monteiro da Silva St, Alfenas, MG 37130-000, Brazil
| | - Juan M Bolivar
- Chemical and Materials Engineering Department, Faculty of Chemical Sciences, Complutense University of Madrid, Complutense Ave., Madrid 28040, Spain
| | - Ángel Berenguer-Murcia
- Departamento de Química Inorgánica e Instituto Universitario de Materiales, Universidad de Alicante, Alicante, Spain
| | - Gilber Vela-Gutiérrez
- Facultad de Ciencias de la Nutrición y Alimentos, Universidad de Ciencias y Artes de Chiapas, Lib. Norte Pte. 1150, 29039 Tuxtla Gutiérrez, Chiapas, Mexico
| | - Jamal S M Sabir
- Centre of Excellence in Bionanoscience Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Veymar G Tacias-Pascacio
- Facultad de Ciencias de la Nutrición y Alimentos, Universidad de Ciencias y Artes de Chiapas, Lib. Norte Pte. 1150, 29039 Tuxtla Gutiérrez, Chiapas, Mexico; Tecnológico Nacional de México, Instituto Tecnológico de Tuxtla Gutiérrez, Carretera Panamericana Km. 1080, 29050 Tuxtla Gutiérrez, Chiapas, Mexico.
| | - Roberto Fernandez-Lafuente
- Departamento de Biocatálisis, ICP-CSIC, Marie Curie 2, Campus UAM-CSIC Cantoblanco, 28049 Madrid, Spain; Center of Excellence in Bionanoscience Research, External Scientific Advisory Academics, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
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Zdarta J, Jankowska K, Strybel U, Marczak Ł, Nguyen LN, Oleskowicz-Popiel P, Jesionowski T. Bioremoval of estrogens by laccase immobilized onto polyacrylonitrile/polyethersulfone material: Effect of inhibitors and mediators, process characterization and catalytic pathways determination. JOURNAL OF HAZARDOUS MATERIALS 2022; 432:128688. [PMID: 35316636 DOI: 10.1016/j.jhazmat.2022.128688] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/26/2022] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
The presence of micropollutants in water, wastewater and soil are a global problem due to their persistent effect on ecosystems and human health. Although there are many methods of removal of environmental pollutants, they are often ineffective for degradation of pharmaceuticals, including estrogens. In presented work we proposed fabrication of electrospun material from polyacrylonitrile/polyethersulfone (PAN/PES) as a support for laccase immobilization by covalent binding. Oxidoreductase was attached to the electrospun fibers using polydopamine as a linker and produced system was used for degradation of two estrogens: 17β-estradiol (E2) and 17α-ethynylestradiol (EE2). It was shown that 92% of E2 and 100% of EE2 were degraded after 24 h of the process. Moreover, the effect of surfactants, metal ions and mediators on conversion efficiencies of estrogens was investigated and it was confirmed that immobilized enzyme possessed higher resistance to inhibitory agents as well as thermal and storage stability, compared to its native form. Finally, estrogenic activities of E2 and EE2 solutions decreased around 99% and 87%, respectively, after enzymatic conversion, that corresponds to significant reduction of the total organic carbon and formation of low-toxic final products of estrogens degradation.
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Affiliation(s)
- Jakub Zdarta
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
| | - Katarzyna Jankowska
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland; Process and Systems Engineering Centre (PROSYS), Department of Chemical and Biochemical Engineering, Technical University of Denmark, Søltofts Plads, Building 227, DK-2800 Kongens Lyngby, Denmark
| | - Urszula Strybel
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland
| | - Łukasz Marczak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland
| | - Luong N Nguyen
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Broadway, New South Wales 2007, Australia
| | - Piotr Oleskowicz-Popiel
- Water Supply and Bioeconomy Division, Faculty of Environmental Engineering and Energy, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
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van Lente JJ, Baig MI, de Vos WM, Lindhoud S. Biocatalytic membranes through aqueous phase separation. J Colloid Interface Sci 2022; 616:903-910. [DOI: 10.1016/j.jcis.2022.02.094] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/26/2022] [Accepted: 02/20/2022] [Indexed: 12/31/2022]
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Mulinari J, Ambrosi A, Innocentini MDDM, Feng Y, Li Q, Di Luccio M, Hotza D, Oliveira JV. Lipase immobilization on alumina membranes using a traditional and a nature-inspired method for active degradation of oil fouling. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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17
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Wang Q, Gao Z, Zhao K, Zhang P, Zhong QZ, Yu Q, Zhai S, Cui J. Co-delivery of enzymes and photosensitizers via metal-phenolic network capsules for enhanced photodynamic therapy. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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T.sriwong K, Matsuda T. Recent Advances in Enzyme Immobilization Utilizing Nanotechnology for Biocatalysis. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.1c00404] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kotchakorn T.sriwong
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Tomoko Matsuda
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
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Barbhuiya NH, Misra U, Singh SP. Biocatalytic membranes for combating the challenges of membrane fouling and micropollutants in water purification: A review. CHEMOSPHERE 2022; 286:131757. [PMID: 34371356 DOI: 10.1016/j.chemosphere.2021.131757] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 07/17/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Over the last few years, the list of water contaminants has grown tremendously due to many anthropogenic activities. Various conventional technologies are available for water and wastewater treatment. However, micropollutants of emerging concern (MEC) are posing a great threat due to their activity at trace concentration and poor removal efficiency by the conventional treatment processes. Advanced technology like membrane technology can remove MEC to some extent. However, issues like the different chemical properties of MEC, selectivity, and fouling of membranes can affect the removal efficiency. Moreover, the concentrate from the membrane filtration may need further treatment. Enzymatic degradation of pollutants and foulants is one of the green approaches for removing various contaminants from the water as well as mitigating membrane fouling. Biocatalytic membranes (BCMs), in which enzymes are immobilized on membranes, combines the advantages of membrane separation and enzymatic degradation. This review article discussed various commonly used enzymes in BCMs for removing MEC and fouling. The majorly used enzymes were oxidoreductases and hydrolases for removing MEC, antifouling, and self-cleaning ability. The various BCM synthesis processes based on entrapment, crosslinking, and binding have been summarized, along with the effects of the addition of the nanoparticles on the performances of the BCMs. The scale-up, commercial viability, challenges, and future direction for improving BCMs have been discussed and shown bright possibilities for these new generation membranes.
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Affiliation(s)
- Najmul Haque Barbhuiya
- Environmental Science and Engineering Department (ESED), Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Utkarsh Misra
- Environmental Science and Engineering Department (ESED), Indian Institute of Technology Bombay, Mumbai, 400076, India; Centre for Research in Nanotechnology & Science (CRNTS), Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Swatantra P Singh
- Environmental Science and Engineering Department (ESED), Indian Institute of Technology Bombay, Mumbai, 400076, India; Centre for Research in Nanotechnology & Science (CRNTS), Indian Institute of Technology Bombay, Mumbai, 400076, India; Interdisciplinary Program in Climate Studies (IDPCS), Indian Institute of Technology Bombay, Mumbai, 400076, India.
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20
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T.sriwong K, Matsuda T. Facile mussel-inspired polydopamine-coated 3D-printed bioreactors for continuous flow biocatalysis. REACT CHEM ENG 2022. [DOI: 10.1039/d2re00040g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Enantiopure alcohol production by a flow system of 3D-printed bioreactor with immobilized Geotrichum candidum acetophenone reductase (GcAPRD).
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Affiliation(s)
- Kotchakorn T.sriwong
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8501, Japan
| | - Tomoko Matsuda
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8501, Japan
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21
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22
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Zhu Y, Chen Q, Tsoi CC, Huang X, El Abed A, Ren K, Leu SY, Zhang X. Biomimetic reusable microfluidic reactors with physically immobilized RuBisCO for glucose precursor production. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02038b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Reusable RuBisCO-immobilized microfluidic reactors are used to synthesize the glucose precursor from CO2 and restore >95% of activity after refreshing.
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Affiliation(s)
- Yujiao Zhu
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999077, P. R. China
- Department of Chemistry, Hong Kong Baptist University, Hong Kong, 999077, P. R. China
| | - Qingming Chen
- School of Microelectronics Science and Technology, Sun Yat-Sen University, Zhuhai, 519082, P. R. China
| | - Chi Chung Tsoi
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999077, P. R. China
| | - Xiaowen Huang
- State Key Laboratory of Biobased Material and Green Papermaking, Department of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Abdel El Abed
- Laboratoire Lumière Matière et Interfaces (LuMIn), Institut d'Alembert, ENS Paris Saclay, CentraleSupélec, CNRS, Université Paris-Saclay, 4 avenue des Sciences, 91190 Gif-sur-Yvette, France
| | - Kangning Ren
- Department of Chemistry, Hong Kong Baptist University, Hong Kong, 999077, P. R. China
| | - Shao-Yuan Leu
- Department of Civil and Environmental Engineering, Hong Kong Polytechnic University, Hong Kong, 999077, P. R. China
| | - Xuming Zhang
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999077, P. R. China
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Kim HJ, Kim B, Auh Y, Kim E. Conjugated Organic Photothermal Films for Spatiotemporal Thermal Engineering. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005940. [PMID: 34050686 DOI: 10.1002/adma.202005940] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/19/2020] [Indexed: 06/12/2023]
Abstract
With the growth of photoenergy harvesting and thermal engineering, photothermal materials (PTMs) have attracted substantial interest due to their unique functions such as localized heat generation, spatiotemporal thermal controllability, invisibility, and light harvesting capabilities. In particular, π-conjugated organic PTMs show advantages over inorganic or metallic PTMs in thin film applications due to their large light absorptivity, ease of synthesis and tunability of molecular structures for realizing high NIR absorption, flexibility, and solution processability. This review is intended to provide an overview of organic PTMs, including both molecular and polymeric PTMs. A description of the photothermal (PT) effect and conversion efficiency (ηPT ) for organic films is provided. After that, the chemical structure and optical properties of organic PTMs are discussed. Finally, emerging applications of organic PT films from the perspective of spatiotemporal thermal engineering principles are illustrated.
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Affiliation(s)
- Hee Jung Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Byeonggwan Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Yanghyun Auh
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Eunkyoung Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
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An enzymatic membrane reactor for oligodextran production: Effects of enzyme immobilization strategies on dextranase activity. Carbohydr Polym 2021; 271:118430. [PMID: 34364570 DOI: 10.1016/j.carbpol.2021.118430] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 01/07/2023]
Abstract
An enzymatic membrane reactor (EMR) with immobilized dextranase provides an excellent opportunity for tailoring the molecular weight (Mw) of oligodextran to significantly improve product quality. However, a highly efficient EMR for oligodextran production is still lacking and the effect of enzyme immobilization strategy on dextranase hydrolysis behavior has not been studied yet. In this work, a functional layer of polydopamine (PDA) or nanoparticles made of tannic acid (TA) and hydrolysable 3-amino-propyltriethoxysilane (APTES) was first coated on commercial membranes. Then cross-linked dextranase or non-cross-linked dextranase was loaded onto the modified membranes using incubation mode or fouling-induced mode. The fouling-induced mode was a promising enzyme immobilization strategy on the membrane surface due to its higher enzyme loading and activity. Moreover, unlike the non-cross-linked dextranase that exhibited a normal endo-hydrolysis pattern, we surprisingly found that the cross-linked dextranase loaded on the PDA modified surface exerted an exo-hydrolysis pattern, possibly due to mass transfer limitations. Such alteration of hydrolysis pattern has rarely been reported before. Based on the hydrolysis behavior of the immobilized dextranase in different EMRs, we propose potential applications for the oligodextran products. This study presents a unique perspective on the relation between the enzyme immobilization process and the immobilized enzyme hydrolysis behavior, and thus opens up a variety of possibilities for the design of a high-performance EMR.
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Suo H, Li M, Liu R, Xu L. Enhancing bio-catalytic performance of lipase immobilized on ionic liquids modified magnetic polydopamine. Colloids Surf B Biointerfaces 2021; 206:111960. [PMID: 34224932 DOI: 10.1016/j.colsurfb.2021.111960] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 06/03/2021] [Accepted: 06/28/2021] [Indexed: 01/09/2023]
Abstract
In this study, imidazolium-based ionic liquid with [tf2N]- as the anion was successfully grafted to magnetic polydopamine nanoparticles (MPDA). The prepared materials were well characterized and used as supports for lipase immobilization. The immobilized lipase (PPL-ILs-MPDA) exhibited excellent activity and stability. The specific activity of PPL-ILs-MPDA was 2.15 and 1.49 folds higher than that of free PPL and PPL-MPDA. In addition, after 10 rounds of reuse, the residual activity of PPL-ILs-MPDA was 86.2 % higher than that of PPL-MPDA (75.4 %). Furthermore, the kinetic assay indicated that the affinity between PPL-ILs-MPDA and substrate had increased. Analysis of the secondary structure using circular dichroism was used to explain the mechanism underlying the improvement in the performance of PPL-ILs-MPDA. In addition, the immobilized lipase can be easily separated from the reaction system with a magnet. The observations regarding the development of new supports for lipase immobilization may provide new ideas regarding further studies in this field.
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Affiliation(s)
- Hongbo Suo
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, 252059, China
| | - Moju Li
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, 252059, China
| | - Renmin Liu
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, 252059, China.
| | - Lili Xu
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong, 252059, China.
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Facile fabrication of antibacterial and antiviral perhydrolase-polydopamine composite coatings. Sci Rep 2021; 11:12410. [PMID: 34127732 PMCID: PMC8203652 DOI: 10.1038/s41598-021-91925-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/31/2021] [Indexed: 01/03/2023] Open
Abstract
In situ generation of antibacterial and antiviral agents by harnessing the catalytic activity of enzymes on surfaces provides an effective eco-friendly approach for disinfection. The perhydrolase (AcT) from Mycobacterium smegmatis catalyzes the perhydrolysis of acetate esters to generate the potent disinfectant, peracetic acid (PAA). In the presence of AcT and its two substrates, propylene glycol diacetate and H2O2, sufficient and continuous PAA is generated over an extended time to kill a wide range of bacteria with the enzyme dissolved in aqueous buffer. For extended self-disinfection, however, active and stable AcT bound onto or incorporated into a surface coating is necessary. In the current study, an active, stable and reusable AcT-based coating was developed by incorporating AcT into a polydopamine (PDA) matrix in a single step, thereby forming a biocatalytic composite onto a variety of surfaces. The resulting AcT-PDA composite coatings on glass, metal and epoxy surfaces yielded up to 7-log reduction of Gram-positive and Gram-negative bacteria when in contact with the biocatalytic coating. This composite coating also possessed potent antiviral activity, and dramatically reduced the infectivity of a SARS-CoV-2 pseudovirus within minutes. The single-step approach enables rapid and facile fabrication of enzyme-based disinfectant composite coatings with high activity and stability, which enables reuse following surface washing. As a result, this enzyme-polymer composite technique may serve as a general strategy for preparing antibacterial and antiviral surfaces for applications in health care and common infrastructure safety, such as in schools, the workplace, transportation, etc.
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Tailor-made novel electrospun polystyrene/poly(d,l-lactide-co-glycolide) for oxidoreductases immobilization: Improvement of catalytic properties under extreme reaction conditions. Bioorg Chem 2021; 114:105036. [PMID: 34120021 DOI: 10.1016/j.bioorg.2021.105036] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/15/2021] [Accepted: 05/28/2021] [Indexed: 11/24/2022]
Abstract
Immobilized enzymes find applications in many areas such as pharmacy, medicine, food production and environmental protection. However, protecting these biocatalysts against harsh reaction conditions and retaining their enzymatic activity even after several biocatalytic cycles are major challenges. Properly selected supports and type of surface modifier therefore seem to be crucial for achieving high retention of catalytic activity of immobilized biomolecules. Here we propose production of novel composite electrospun fibers from polystyrene/poly(d,l-lactide-co-glycolide) (PS/PDLG) and its application as a support for immobilization of oxidoreductases such as alcohol dehydrogenase (ADH) and laccase (LAC). Two strategies of covalent binding, (i) (3-aminopropyl)triethoxysilane (APTES) with glutaraldehyde (GA) and (ii) polydopamine (PDA), were applied to attach oxidoreductases to PS/PDLG. The average fiber diameter was shown to increase from 1.252 µm to even 3.367 µm after enzyme immobilization. Effective production of PS/PDLG fibers and biomolecule attachment were confirmed by Fourier transform infrared spectroscopy analysis. The highest substrate conversion efficiency was observed at pH 6.5 and 5 for ADH and LAC, respectively, and at 25 °C for enzymes attached using the APTES + GA approach. Improvement of enzyme stabilization at high temperatures was confirmed in that relative activities of enzymes immobilized onto PS/PDLG fibers were over 20% higher than those of the free biomolecules, and enzyme leaching from the support using acetate and MES buffers was below 10 mg/g.
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Brabcova J, Andreu A, Aguilera D, Cabrera Z, de las Rivas B, Muñoz R, Palomo JM. Geranyl Functionalized Materials for Site-Specific Co-Immobilization of Proteins. Molecules 2021; 26:3028. [PMID: 34069529 PMCID: PMC8161341 DOI: 10.3390/molecules26103028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/14/2021] [Accepted: 05/18/2021] [Indexed: 11/16/2022] Open
Abstract
Different materials containing carboxylic groups have been functionalized with geranyl-amine molecules by using an EDC/NHS strategy. Chemical modification of the support was confirmed by XRD, UV-spectrophotometer, and FT-IR. This geranyl-functionalized material was successfully applied for four different strategies of site-selective immobilization of proteins at room temperature and aqueous media. A reversible hydrophobic immobilization of proteins (lipases, phosphoglucosidases, or tyrosinase) was performed in neutral pH in yields from 40 to >99%. An increase of the activity in the case of lipases was observed from a range of 2 to 4 times with respect to the initial activity in solution. When chemically or genetically functionalized cysteine enzymes were used, the covalent immobilization, via a selective thiol-alkene reaction, was observed in the presence of geranyl support at pH 8 in lipases in the presence of detergent (to avoid the previous hydrophobic interactions). Covalent attachment was confirmed with no release of protein after immobilization by incubation with hydrophobic molecules. In the case of a selenium-containing enzyme produced by the selenomethionine pathway, the selective immobilization was successfully yielded at acidic pH (pH 5) (89%) much better than at pH 8. In addition, when an azido-enzyme was produced by the azide-homoalanine pathway, the selective immobilization was successful at pH 6 and in the presence of CuI for the click chemistry reaction.
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Affiliation(s)
- Jana Brabcova
- Department of Biocatalysis, Institute of Catalysis (CSIC), Marie Curie 2, 28049 Madrid, Spain; (J.B.); (A.A.); (D.A.)
- Bacterial Biotechnology, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain; (B.d.l.R.); (R.M.)
| | - Alicia Andreu
- Department of Biocatalysis, Institute of Catalysis (CSIC), Marie Curie 2, 28049 Madrid, Spain; (J.B.); (A.A.); (D.A.)
| | - David Aguilera
- Department of Biocatalysis, Institute of Catalysis (CSIC), Marie Curie 2, 28049 Madrid, Spain; (J.B.); (A.A.); (D.A.)
| | - Zaida Cabrera
- School of Biochemical Engineering, Pontificia Universidad Católica de Valparaíso, Avda, Brasil, 2085 Valparaíso, Chile;
| | - Blanca de las Rivas
- Bacterial Biotechnology, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain; (B.d.l.R.); (R.M.)
| | - Rosario Muñoz
- Bacterial Biotechnology, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain; (B.d.l.R.); (R.M.)
| | - Jose M. Palomo
- Department of Biocatalysis, Institute of Catalysis (CSIC), Marie Curie 2, 28049 Madrid, Spain; (J.B.); (A.A.); (D.A.)
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Ma X, Sui H, Yu Q, Cui J, Hao J. Silica Capsules Templated from Metal-Organic Frameworks for Enzyme Immobilization and Catalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3166-3172. [PMID: 33651618 DOI: 10.1021/acs.langmuir.1c00065] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Inspired by the unique biological microenvironments of eukaryotic cells, hollow capsules are promising to immobilize enzymes due to their advantages for physical protection and improved activity of enzymes. Herein, we report a facile method to fabricate silica (SiO2) capsules using zeolitic imidazole framework-8 nanoparticles (ZIF-8 NPs) as templates for enzyme immobilization and catalysis. Enzyme-encapsulated SiO2 capsules are obtained by encapsulation of enzymes in ZIF-8 NPs and subsequent coating of silica layers, followed by the removal of templates in a mild condition (i.e., ethylenediaminetetraacetic acid (EDTA) solution). The enzyme (i.e., horseradish peroxidase, HRP) activity in SiO2 capsules is improved more than 15 times compared to that of enzyme-loaded ZIF-8 NPs. Enzymes in SiO2 capsules maintain a high relative activity after being subjected to high temperature, enzymolysis, and recycling compared to free enzymes. In addition, multienzymes (e.g., glucose oxidase and HRP) can also be coencapsulated within SiO2 capsules to show a reaction with a high cascade catalytic efficacy. This work provides a versatile strategy for enzyme immobilization and protection with potential applications in biocatalysis.
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Affiliation(s)
- Xuebin Ma
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Haiyan Sui
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China
| | - Qun Yu
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Jiwei Cui
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
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30
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Bioinspired proteolytic membrane (BPM) with bilayer pepsin structure for protein hydrolysis. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118214] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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31
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Molecular Decoration of Ceramic Supports for Highly Effective Enzyme Immobilization-Material Approach. MATERIALS 2021; 14:ma14010201. [PMID: 33401646 PMCID: PMC7794798 DOI: 10.3390/ma14010201] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 12/29/2020] [Accepted: 12/29/2020] [Indexed: 01/16/2023]
Abstract
A highly effective method was developed to functionalize ceramic supports (Al2O3 powders and membranes) using newly synthesized spacer molecules. The functionalized materials were subsequently utilized for Candida antarctica lipase B enzyme immobilization. The objective is to systematically evaluate the impact of various spacer molecules grafted onto the alumina materials will affect both the immobilization of the enzymes and specific material surface properties, critical to enzymatic reactors performance. The enzyme loading was significantly improved for the supports modified with shorter spacer molecules, which possessed higher grafting effectiveness on the order of 90%. The specific enzyme activity was found to be much higher for samples functionalized with longer modifiers yielding excellent enantioselectivity >97%. However, the enantiomeric ratio of the immobilized lipase was slightly lower in the case of shorter spacer molecules.
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32
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Naramittanakul A, Buttranon S, Petchsuk A, Chaiyen P, Weeranoppanant N. Development of a continuous-flow system with immobilized biocatalysts towards sustainable bioprocessing. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00189b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Implementing immobilized biocatalysts in continuous-flow systems can enable a sustainable process through enhanced enzyme stability, better transport and process continuity as well as simplified recycle and downstream processing.
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Affiliation(s)
- Apisit Naramittanakul
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Supacha Buttranon
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Atitsa Petchsuk
- National Metal and Materials Technology Center (MTEC), Pathum Thani 12120, Thailand
| | - Pimchai Chaiyen
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Nopphon Weeranoppanant
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
- Department of Chemical Engineering, Faculty of Engineering, Burapha University, Chonburi 20131, Thailand
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33
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Layer-by-layer assembly based low pressure biocatalytic nanofiltration membranes for micropollutants removal. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118514] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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34
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Luo J, Song S, Zhang H, Zhang H, Zhang J, Wan Y. Biocatalytic membrane: Go far beyond enzyme immobilization. Eng Life Sci 2020; 20:441-450. [PMID: 33204231 PMCID: PMC7645639 DOI: 10.1002/elsc.202000018] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/21/2020] [Accepted: 04/24/2020] [Indexed: 01/02/2023] Open
Abstract
Biocatalytic membrane takes advantages of reaction-separation integration as well as enzyme immobilization, which has attracted increasing attentions in online detection and biomanufacturing. However, the high preparation cost, inferior comprehensive performance, and low stability limit its applications. Thus, besides enzyme immobilization, more efforts should be made in biocatalytic membrane configuration design for a specific application to enhance the synergistic effect of reaction and separation and improve its operating stability. This review summarized the recent progress on biocatalytic membrane preparation, discussed different membrane configurations for various applications, finally proposed several challenges and possible solutions, which provided directions and guides for the development and industrialization of biocatalytic membrane.
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Affiliation(s)
- Jianquan Luo
- State Key Laboratory of Biochemical Engineering, Institute of Process EngineeringChinese Academy of SciencesBeijingP.R. China
- School of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP.R. China
| | - Siqing Song
- State Key Laboratory of Biochemical Engineering, Institute of Process EngineeringChinese Academy of SciencesBeijingP.R. China
- School of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP.R. China
| | - Hao Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process EngineeringChinese Academy of SciencesBeijingP.R. China
- School of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP.R. China
| | - Huiru Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process EngineeringChinese Academy of SciencesBeijingP.R. China
- School of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP.R. China
| | - Jinxuan Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process EngineeringChinese Academy of SciencesBeijingP.R. China
- School of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP.R. China
| | - Yinhua Wan
- State Key Laboratory of Biochemical Engineering, Institute of Process EngineeringChinese Academy of SciencesBeijingP.R. China
- School of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP.R. China
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35
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Bell DJ, Wiese M, Schönberger AA, Wessling M. Catalytically Active Hollow Fiber Membranes with Enzyme‐Embedded Metal–Organic Framework Coating. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daniel Josef Bell
- Chemical Process Engineering RWTH Aachen University Forckenbeckstr. 51 52074 Aachen Germany
| | - Monika Wiese
- Chemical Process Engineering RWTH Aachen University Forckenbeckstr. 51 52074 Aachen Germany
| | | | - Matthias Wessling
- Chemical Process Engineering RWTH Aachen University Forckenbeckstr. 51 52074 Aachen Germany
- DWI Leibnitz-Institute for Interactive Materials Forckenbeckstr. 50 52074 Aachen Germany
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36
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Su Z, Luo J, Li X, Pinelo M. Enzyme membrane reactors for production of oligosaccharides: A review on the interdependence between enzyme reaction and membrane separation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116840] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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37
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Bell DJ, Wiese M, Schönberger AA, Wessling M. Catalytically Active Hollow Fiber Membranes with Enzyme-Embedded Metal-Organic Framework Coating. Angew Chem Int Ed Engl 2020; 59:16047-16053. [PMID: 32469424 PMCID: PMC7540569 DOI: 10.1002/anie.202003287] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 05/10/2020] [Indexed: 12/12/2022]
Abstract
Metal-organic frameworks (MOFs) are suitable enzyme immobilization matrices. Reported here is the in situ biomineralization of glucose oxidase (GOD) into MOF crystals (ZIF-8) by interfacial crystallization. This method is effective for the selective coating of porous polyethersulfone microfiltration hollow fibers on the shell side in a straightforward one-step process. MOF layers with a thickness of 8 μm were synthesized, and fluorescence microscopy and a colorimetric protein assay revealed the successful inclusion of GOD into the ZIF-8 layer with an enzyme concentration of 29±3 μg cm-2 . Enzymatic activity tests revealed that 50 % of the enzyme activity is preserved. Continuous enzymatic reactions, by the permeation of β-d-glucose through the GOD@ZIF-8 membranes, showed a 50 % increased activity compared to batch experiments, emphasizing the importance of the convective transport of educts and products to and from the enzymatic active centers.
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Affiliation(s)
- Daniel Josef Bell
- Chemical Process Engineering, RWTH Aachen University, Forckenbeckstr. 51, 52074, Aachen, Germany
| | - Monika Wiese
- Chemical Process Engineering, RWTH Aachen University, Forckenbeckstr. 51, 52074, Aachen, Germany
| | | | - Matthias Wessling
- Chemical Process Engineering, RWTH Aachen University, Forckenbeckstr. 51, 52074, Aachen, Germany.,DWI Leibnitz-Institute for Interactive Materials, Forckenbeckstr. 50, 52074, Aachen, Germany
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38
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Seto H, Harada M, Nagaura H, Taniguchi H, Murakami T, Kimura I, Hirohashi Y, Shinto H. Formation of glyco-functionalized interfaces for protein binding using polyphenolic glycoside. Carbohydr Res 2020; 492:108002. [PMID: 32278120 DOI: 10.1016/j.carres.2020.108002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/24/2020] [Accepted: 04/01/2020] [Indexed: 11/19/2022]
Abstract
In this study, a polyphenolic glycoside (α-glucosyl rutin) was used to form glyco-functionalized interfaces for protein binding. α-Glucosyl rutin was coated onto precious metals, metal oxides, and synthetic polymers, including polyethylene and polytetrafluoroethylene with poor surface modifiability. The glyco-functionalized interfaces bound strongly and specifically to concanavalin A and Bauhinia purpurea lectin, which have different carbohydrate specificities. Competitive adsorption tests demonstrated that the binding sites for the abovementioned lectins were glucosyl and rhamnosyl residues, respectively. The glyco-functionalized interfaces maintained the protein binding ability after being stored in aqueous solution for 1 day and in air for 160 days. Once the glyco-functionalized interfaces were formed on gold, silicon dioxide, polystyrene, and polytetrafluoroethylene using α-glucosyl rutin, all the glyco-functionalized interfaces bound to concanavalin A rather than peanut agglutinin.
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Affiliation(s)
- Hirokazu Seto
- Department of Chemical Engineering, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan.
| | - Mao Harada
- Department of Chemical Engineering, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
| | - Hidenori Nagaura
- Department of Chemical Engineering, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
| | - Honoka Taniguchi
- Department of Chemical Engineering, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
| | - Tatsuya Murakami
- Center for Nano Materials and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
| | - Ichiro Kimura
- Center for Nano Materials and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
| | - Yumiko Hirohashi
- Department of Chemical Engineering, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
| | - Hiroyuki Shinto
- Department of Chemical Engineering, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
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39
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Affiliation(s)
- Árpád Molnár
- Department of Organic Chemistry University of Szeged Dóm tér 8 Szeged 6720 Hungary
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40
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Zhou F, Luo J, Song S, Wan Y. Nanostructured Polyphenol-Mediated Coating: a Versatile Platform for Enzyme Immobilization and Micropollutant Removal. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b05708] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Fangfang Zhou
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jianquan Luo
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Siqing Song
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yinhua Wan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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41
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Cheng W, Li Y, Li X, Bai W, Liang Y. Preparation and characterization of PDA/SiO2 nanofilm constructed macroporous monolith and its application in lipase immobilization. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.09.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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42
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Vitola G, Mazzei R, Poerio T, Barbieri G, Fontananova E, Büning D, Ulbricht M, Giorno L. Influence of Lipase Immobilization Mode on Ethyl Acetate Hydrolysis in a Continuous Solid–Gas Biocatalytic Membrane Reactor. Bioconjug Chem 2019; 30:2238-2246. [DOI: 10.1021/acs.bioconjchem.9b00463] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Giuseppe Vitola
- Institute on Membrane Technology, National Research Council, ITM-CNR, via P. Bucci, 17/C, I-87030 Rende, Cosenza, Italy
| | - Rosalinda Mazzei
- Institute on Membrane Technology, National Research Council, ITM-CNR, via P. Bucci, 17/C, I-87030 Rende, Cosenza, Italy
| | - Teresa Poerio
- Institute on Membrane Technology, National Research Council, ITM-CNR, via P. Bucci, 17/C, I-87030 Rende, Cosenza, Italy
| | - Giuseppe Barbieri
- Institute on Membrane Technology, National Research Council, ITM-CNR, via P. Bucci, 17/C, I-87030 Rende, Cosenza, Italy
| | - Enrica Fontananova
- Institute on Membrane Technology, National Research Council, ITM-CNR, via P. Bucci, 17/C, I-87030 Rende, Cosenza, Italy
| | - Dominic Büning
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, 45117 Essen, Germany
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, 45117 Essen, Germany
| | - Lidietta Giorno
- Institute on Membrane Technology, National Research Council, ITM-CNR, via P. Bucci, 17/C, I-87030 Rende, Cosenza, Italy
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43
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Zhang H, Zhang H, Luo J, Wan Y. Enzymatic Cascade Catalysis in a Nanofiltration Membrane: Engineering the Microenvironment by Synergism of Separation and Reaction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:22419-22428. [PMID: 31190541 DOI: 10.1021/acsami.9b05371] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Microenvironment plays a significant role in enzymatic catalysis, which directly influences enzyme activity and stability. It is important to regulate the enzyme microenvironment, especially for the liquid with unfavored properties (e.g., pH and dissolved oxygen). In this work, we propose a methodology that can regulate pH and substrate concentration for enzymatic catalysis by a biocatalytic membrane, which is composed of glucose oxidase (GOx) and horseradish peroxidase (HRP) co-immobilized in a polyamide nanofiltration (NF) membrane (i.e., beneath the separation layer). By virtue of the selective separation function of NF membrane and in situ production of organic acid/electron donor with GOx, a synergism effect of separation and reaction in the liquid/solid interface was manipulated for engineering the microenvironment of HRP to enhance its activity and stability for micropollutant removal in water. The outcome of this work not only provides a new methodology to precisely control enzymatic reaction but also offers a smart membrane system to efficiently and steadily remove the micropollutants in portable water.
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Affiliation(s)
- Huiru Zhang
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Hao Zhang
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Jianquan Luo
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Yinhua Wan
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
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44
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Zhou F, Luo J, Qi B, Chen X, Wan Y. Horseradish Peroxidase Immobilized on Multifunctional Hybrid Microspheres for Aflatoxin B1 Removal: Will Enzymatic Reaction be Enhanced by Adsorption? Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02094] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Fangfang Zhou
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jianquan Luo
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Benkun Qi
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Xiangrong Chen
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Yinhua Wan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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45
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Chen W, Mo J, Du X, Zhang Z, Zhang W. Biomimetic dynamic membrane for aquatic dye removal. WATER RESEARCH 2019; 151:243-251. [PMID: 30599283 DOI: 10.1016/j.watres.2018.11.078] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 11/24/2018] [Accepted: 11/28/2018] [Indexed: 05/25/2023]
Abstract
This study utilized physical adsorption and filtration of carbon nanotubes (CNTs) and laccases to fabricate biomimetic dynamic membrane (BDM) for the advanced treatment of dye wastewater. In BDM, the adsorption, enzymatic degradation and membrane separation demonstrated a synergism effect on pollutant removal. At first, the fabrication methods of BDM were investigated, and the mixed filtration for laccases and CNTs showed a better performance than the stepwise filtration. Furthermore, the operation parameters of BDM, including CNTs and laccase loading amounts, dye concentration, agitation speed and transmembrane pressure (TMP), were studied. Suitable CNTs and laccase amounts could reduce filtration resistance and increase catalysis efficiency, while moderate TMP and agitation speed were in favor of boosting the BDM structure for catalysis and permeability. Optimized operation parameters (CNT loading amount = 20 g m-2, laccase loading amount = 74.6 g m-2, agitation speed = 100 rpm, and TMP = 1.0 bar) sustained a high removal rate, and the flux was over 120 L m-2 h-1, even for 7 operation cycle' tests. BDM exhibited an excellent dye removal rate, stable flux and great antifouling capacity, on the ground that adsorption saturation and foulant may be alleviated "online and in-situ" by the enzymatic degradation. Afterwards, the bionic layer on BDM, after absorption saturation and catalyst deactivation, could be eliminated rapidly by carrying out a simple backwash cleaning operation, then a new one could be fabricated immediately. Therefore, BDM is a good candidate for functional membrane materials in future water treatment.
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Affiliation(s)
- Wensong Chen
- School of Environmental Science and Engineering, Guangzhou, 510006, China
| | - Jiahao Mo
- School of Environmental Science and Engineering, Guangzhou, 510006, China
| | - Xing Du
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Zhien Zhang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Wenxiang Zhang
- School of Environmental Science and Engineering, Guangzhou, 510006, China.
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Sigurdardóttir SB, Lehmann J, Grivel J, Zhang W, Kaiser A, Pinelo M. Alcohol dehydrogenase on inorganic powders: Zeta potential and particle agglomeration as main factors determining activity during immobilization. Colloids Surf B Biointerfaces 2019; 175:136-142. [DOI: 10.1016/j.colsurfb.2018.11.080] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/23/2018] [Accepted: 11/28/2018] [Indexed: 01/25/2023]
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Mohammad M, Razmjou A, Liang K, Asadnia M, Chen V. Metal-Organic-Framework-Based Enzymatic Microfluidic Biosensor via Surface Patterning and Biomineralization. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1807-1820. [PMID: 30525376 DOI: 10.1021/acsami.8b16837] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Recently, the biomineralization of enzyme in metal-organic-framework (enzyme-MOF) composite have shown a great potential to increase enzymes stability without compromising their activity; hence, it is desirable for its applications in biosensing devices. Nonetheless, most of the enzyme-MOF research has been focusing on enzyme encapsulation in particle form, which limits its synthesis flexibility for practical applications because of its requirement for postsynthesis immobilization onto solid support. Therefore, to develop a diagnostic device out of the biomineralized enzyme, surface patterning and integration of microfluidic system offers many advantages. In this work, mussel-inspired polydopamine/polyethyleneimine (PDA/PEI) coating is employed to pattern enzyme-MOF in microfluidic channels and exploit the wettability gradient for "pumpless transportation" effect. As a proof of concept, we combine a cascade reaction of glucose oxidase (GOx) and horseradish peroxidase (HRP) enzymes to detect glucose into a patterned zeolitic imidazole framework-8 (ZIF-8) thin film on a flexible polymeric substrate. The results show that the ZIF-8/GOx&HRP in situ composites on PDA/PEI patterns have good acid and thermal stability compared with samples without ZIF-8. ZIF-8/GOx&HRP in situ shows high selectivity toward glucose, linear sensitivity of 0.00303 Abs/μM, and the limit of detection of 8 μM glucose concentration. An unexpected benefit of this approach is the ability of the ZIF-8 thin-film structure to provide a diffusion limiting effect for substrate influx, thus, producing high range of linear response range (8 μM to 5 mM of glucose). This work provides insights into the spatial location of the enzymes in MOF thin films and the potential of such patterning techniques for MOF-based biosensors using other types of biological elements such as antibodies and aptamers.
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Affiliation(s)
| | - Amir Razmjou
- Department of Biotechnology, Faculty of Advanced Sciences and Technologies , University of Isfahan , Isfahan 73441-81746 , Iran
| | | | - Mohsen Asadnia
- School of Engineering , Macquarie University , Sydney 2109 , Australia
| | - Vicki Chen
- School of Chemical Engineering , University of Queensland , St. Lucia 4072 , Australia
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Choi J, Yang S, Jeong NJ, Kim H, Kim WS. Fabrication of an Anion-Exchange Membrane by Pore-Filling Using Catechol-1,4-Diazabicyclo-[2,2,2]octane Coating and Its Application to Reverse Electrodialysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:10837-10846. [PMID: 30132671 DOI: 10.1021/acs.langmuir.8b01666] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We have successfully exploited the Michael-type addition reaction between catechol and DABCO (1,4-diazabicyclo-[2,2,2]octane) molecules under alkaline conditions for the formation of new quaternary ammonium (QA) groups in an anion-exchange membrane. The anion-exchange membranes (AEMs) were prepared using the pore-filling method by addition of electrolytes (vinyl benzyl trimethylammonium chloride (VBTMA), dopamine methacrylamide (DMA) bearing a catechol group, and ethylene glycol diacrylate as a cross-linker) to a porous substrate. The formation of new QA groups by the reaction of DABCO with catechol components was confirmed by characterization of new peaks in the Fourier transform infrared spectra of the AEMs. The DABCO-bound AEM demonstrated a significant decrease in area resistance (0.4 Ω·cm2) and increase in permselectivity (94%). Furthermore, the electrochemical properties of the AEMs could be controlled by altering the concentrations of VBTMA and DMA and the formation of new bonds between DMA and DABCO. The calculated theoretical (4.31 W/m2) and practical (1.52 W/m2) power densities during a reverse electrodialysis (RED) process employing the membrane with the best properties (E2C1-DMA0.5-DABCO) were by 33 and 18% higher than those of a system utilizing a commercial membrane, Neosepta AMX (3.25 and 1.29 W/m2). Therefore, the AEM synthesized in this study is a good candidate for use in RED applications.
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Affiliation(s)
- Jiyeon Choi
- Jeju Global Research Center , Korea Institute of Energy Research , 200 Haemajihean-ro, Jeju-si , Jeju Special Self-Governing Province 63357 , Republic of Korea
| | - SeungCheol Yang
- Jeju Global Research Center , Korea Institute of Energy Research , 200 Haemajihean-ro, Jeju-si , Jeju Special Self-Governing Province 63357 , Republic of Korea
| | - Nam-Jo Jeong
- Jeju Global Research Center , Korea Institute of Energy Research , 200 Haemajihean-ro, Jeju-si , Jeju Special Self-Governing Province 63357 , Republic of Korea
| | - Hanki Kim
- Jeju Global Research Center , Korea Institute of Energy Research , 200 Haemajihean-ro, Jeju-si , Jeju Special Self-Governing Province 63357 , Republic of Korea
| | - Won-Sik Kim
- Jeju Global Research Center , Korea Institute of Energy Research , 200 Haemajihean-ro, Jeju-si , Jeju Special Self-Governing Province 63357 , Republic of Korea
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Wu W, Huang R, Qi W, Su R, He Z. Bioinspired Peptide-Coated Superhydrophilic Poly(vinylidene fluoride) Membrane for Oil/Water Emulsion Separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6621-6627. [PMID: 29750533 DOI: 10.1021/acs.langmuir.8b01017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polyvinylidene fluoride (PVDF) membranes are limited in the field of oil-in-water emulsion treatment because the intrinsic hydrophobicity of PVDF can cause serious membrane fouling. Here, a superhydrophilic PVDF membrane (PVDF@PDA-GSH) was fabricated using a facile, versatile, mussel-inspired method. The pristine PVDF membrane was coated with dopamine under mild alkaline conditions by a dip-coating method, followed by addition of glutathione (GSH) via a simple reaction. GSH was successfully coated onto the membrane surface and confirmed by X-ray photoelectron spectroscopy and energy dispersive X-ray spectrometry. Hierarchical surface structure and superhydrophilicity were examined by scanning electron microscopy and contact angle, respectively, giving the PVDF@PDA-GSH membrane excellent wettability and antifouling ability. The water flux of PVDF@PDA-GSH was several-fold higher than conventional filtration membranes, and the oil rejection ratio was nearly 99%. The PVDF@PDA-GSH membrane also showed favorable reusability because the flux recovery ratio (FRR) remained above 90% after five cycles. In general, these results indicated that this modification might provide a good method for the fabrication of superhydrophilic PVDF membranes with good prospects for water filtration applications.
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Kim TH, Lee I, Yeon KM, Kim J. Biocatalytic membrane with acylase stabilized on intact carbon nanotubes for effective antifouling via quorum quenching. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.03.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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