1
|
Zhu S, Zhao B, Li M, Wang H, Zhu J, Li Q, Gao H, Feng Q, Cao X. Microenvironment responsive nanocomposite hydrogel with NIR photothermal therapy, vascularization and anti-inflammation for diabetic infected wound healing. Bioact Mater 2023; 26:306-320. [PMID: 36950149 PMCID: PMC10027510 DOI: 10.1016/j.bioactmat.2023.03.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/15/2023] [Accepted: 03/08/2023] [Indexed: 03/16/2023] Open
Abstract
Bacterial infection, excessive inflammation and damaging blood vessels network are the major factors to delay the healing of diabetic ulcer. At present, most of wound repair materials are passive and can't response to the wound microenvironment, resulting in a low utilization of bioactive substances and hence a poor therapeutic effect. Therefore, it's essential to design an intelligent wound dressing responsive to the wound microenvironment to achieve the release of drugs on-demand on the basis of multifunctionality. In this work, metformin-laden CuPDA NPs composite hydrogel (Met@ CuPDA NPs/HG) was fabricated by dynamic phenylborate bonding of gelatin modified by dopamine (Gel-DA), Cu-loaded polydopamine nanoparticles (CuPDA NPs) with hyaluronic acid modified by phenyl boronate acid (HA-PBA), which possessed good injectability, self-healing, adhesive and DPPH scavenging performance. The slow release of metformin was achieved by the interaction with CuPDA NPs, boric groups (B-N coordination) and the constraint of hydrogel network. Metformin had a pH and glucose responsive release behavior to treat different wound microenvironment intelligently. Moreover, CuPDA NPs endowed the hydrogel excellent photothermal responsiveness to kill bacteria of >95% within 10 min and also the slow release of Cu2+ to protect wound from infection for a long time. Met@ CuPDA NPs/HG also recruited cells to a certain direction and promoted vascularization by releasing Cu2+. More importantly, Met@CuPDA NPs/HG effectively decreased the inflammation by eliminating ROS and inhibiting the activation of NF-κB pathway. Animal experiments demonstrated that Met@CuPDA NPs/HG significantly promoted wound healing of diabetic SD rats by killing bacteria, inhibiting inflammation, improving angiogenesis and accelerating the deposition of ECM and collagen. Therefore, Met@CuPDA NPs/HG had a great application potential for diabetic wound healing.
Collapse
Affiliation(s)
- Shuangli Zhu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
| | - Bangjiao Zhao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
| | - Maocai Li
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
| | - Hao Wang
- School of Medicine, South China University of Technology, Guangzhou, 510006, PR China
| | - Jiayi Zhu
- School of Medicine, South China University of Technology, Guangzhou, 510006, PR China
| | - Qingtao Li
- School of Medicine, South China University of Technology, Guangzhou, 510006, PR China
| | - Huichang Gao
- School of Medicine, South China University of Technology, Guangzhou, 510006, PR China
| | - Qi Feng
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
| | - Xiaodong Cao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, PR China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, PR China
- Zhongshan Institute of Modern Industrial Technology of SCUT, Zhongshan, Guangdong, 528437, PR China
- Corresponding author. School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China.
| |
Collapse
|
2
|
Construction strategies and the development trend of antibacterial surfaces. Biointerphases 2022; 17:050801. [DOI: 10.1116/6.0002147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The construction of antibacterial surfaces is an efficient way to respond to the problem of microbial contamination. In this review, we first describe the formation process and characteristics of microbial contamination and the current research status of antibacterial surfaces. Then, the passive antiadhesion, active killing, and combination construction strategies of the antibacterial surface are discussed in detail. Based on different antibacterial mechanisms and existing problems of current antibacterial strategies, we then discuss the future development trends of the next generation of antibacterial surfaces.
Collapse
|
3
|
Designment of polydopamine/bacterial cellulose incorporating copper (II) sulfate as an antibacterial wound dressing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 134:112591. [DOI: 10.1016/j.msec.2021.112591] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 11/02/2021] [Accepted: 11/30/2021] [Indexed: 11/20/2022]
|
4
|
Zhao Z, Li Y, Jin D, Van der Bruggen B. Modification of an anion exchange membrane based on rapid mussel-inspired deposition for improved antifouling performance. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126267] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
5
|
Cox HJ, Li J, Saini P, Paterson JR, Sharples GJ, Badyal JPS. Bioinspired and eco-friendly high efficacy cinnamaldehyde antibacterial surfaces. J Mater Chem B 2021; 9:2918-2930. [PMID: 33885647 DOI: 10.1039/d0tb02379e] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Antimicrobial essential oils are incorporated into mussel-inspired and natural plant polyphenol coatings as part of a single-step fabrication process. Polydopamine-cinnamaldehyde, polyethyleneimine-cinnamaldehyde, and tannic acid-cinnamaldehyde coatings exhibit strong antibacterial activities against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus (with the polydopamine- and tannic acid-based systems displaying log10 Reduction = 8). Cinnamaldehyde impregnation into porous non-woven polypropylene cloth, polytetrafluoroethylene membrane, and knitted cotton cloth also gives rise to high levels of antibacterial activity (log10 Reduction = 8). No loss in antibacterial efficacy is observed for non-woven polypropylene cloth impregnated with cinnamaldehyde over 17 recycle tests.
Collapse
Affiliation(s)
- Harrison J Cox
- Department of Chemistry, Durham University, Durham DH1 3LE, England, UK.
| | | | | | | | | | | |
Collapse
|
6
|
García A, Rodríguez B, Giraldo H, Quintero Y, Quezada R, Hassan N, Estay H. Copper-Modified Polymeric Membranes for Water Treatment: A Comprehensive Review. MEMBRANES 2021; 11:93. [PMID: 33525631 PMCID: PMC7911616 DOI: 10.3390/membranes11020093] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 01/21/2021] [Accepted: 01/25/2021] [Indexed: 11/23/2022]
Abstract
In the last decades, the incorporation of copper in polymeric membranes for water treatment has received greater attention, as an innovative potential solution against biofouling formation on membranes, as well as, by its ability to improve other relevant membrane properties. Copper has attractive characteristics: excellent antimicrobial activity, high natural abundance, low cost and the existence of multiple cost-effective synthesis routes for obtaining copper-based materials with tunable characteristics, which favor their incorporation into polymeric membranes. This study presents a comprehensive analysis of the progress made in the area regarding modified membranes for water treatment when incorporating copper. The notable use of copper materials (metallic and oxide nanoparticles, salts, composites, metal-polymer complexes, coordination polymers) for modifying microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), forward osmosis (FO) and reverse osmosis (RO) membranes have been identified. Antibacterial and anti-fouling effect, hydrophilicity increase, improvements of the water flux, the rejection of compounds capacity and structural membrane parameters and the reduction of concentration polarization phenomena are some outstanding properties that improved. Moreover, the study acknowledges different membrane modification approaches to incorporate copper, such as, the incorporation during the membrane synthesis process (immobilization in polymer and phase inversion) or its surface modification using physical (coating, layer by layer assembly and electrospinning) and chemical (grafting, one-pot chelating, co-deposition and mussel-inspired PDA) surface modification techniques. Thus, the advantages and limitations of these modifications and their methods with insights towards a possible industrial applicability are presented. Furthermore, when copper was incorporated into membrane matrices, the study identified relevant detrimental consequences with potential to be solved, such as formation of defects, pore block, and nanoparticles agglomeration during their fabrication. Among others, the low modification stability, the uncontrolled copper ion releasing or leaching of incorporated copper material are also identified concerns. Thus, this article offers modification strategies that allow an effective copper incorporation on these polymeric membranes and solve these hinders. The article finishes with some claims about scaling up the implementation process, including long-term performance under real conditions, feasibility of production at large scale, and assessment of environmental impact.
Collapse
Affiliation(s)
- Andreina García
- Mining Engineering Department, FCFM, Universidad de Chile, Santiago 8370451, Chile
- Advanced Mining Technology Center (AMTC), Universidad de Chile, Santiago 8370451, Chile; (H.G.); (Y.Q.); (R.Q.); (H.E.)
| | - Bárbara Rodríguez
- Advanced Mining Technology Center (AMTC), Universidad de Chile, Santiago 8370451, Chile; (H.G.); (Y.Q.); (R.Q.); (H.E.)
| | - Hugo Giraldo
- Advanced Mining Technology Center (AMTC), Universidad de Chile, Santiago 8370451, Chile; (H.G.); (Y.Q.); (R.Q.); (H.E.)
| | - Yurieth Quintero
- Advanced Mining Technology Center (AMTC), Universidad de Chile, Santiago 8370451, Chile; (H.G.); (Y.Q.); (R.Q.); (H.E.)
| | - Rodrigo Quezada
- Advanced Mining Technology Center (AMTC), Universidad de Chile, Santiago 8370451, Chile; (H.G.); (Y.Q.); (R.Q.); (H.E.)
| | - Natalia Hassan
- Programa Institucional de Fomento a la I+D+i, Universidad Tecnológica Metropolitana, Ignacio Valdivieso 2409, San Joaquín, Santiago 8940577, Chile;
| | - Humberto Estay
- Advanced Mining Technology Center (AMTC), Universidad de Chile, Santiago 8370451, Chile; (H.G.); (Y.Q.); (R.Q.); (H.E.)
| |
Collapse
|
7
|
Wang D, Wang Y, Zhang X, Li T, Du M, Chen M, Dong W. Preferred zinc-modified melamine phytate for the flame retardant polylactide with limited smoke release. NEW J CHEM 2021. [DOI: 10.1039/d1nj02219a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The higher flame retardancy and smoke suppression effects for PLA/MPAZn20 were mainly ascribed to the condensed phase during combustion.
Collapse
Affiliation(s)
- Dong Wang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Yang Wang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Xuhui Zhang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Ting Li
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Mingliang Du
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Mingqing Chen
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Weifu Dong
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| |
Collapse
|
8
|
Bahamonde Soria R, Zhu J, Gonza I, Van der Bruggen B, Luis P. Effect of (TiO2: ZnO) ratio on the anti-fouling properties of bio-inspired nanofiltration membranes. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117280] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
9
|
Chen B, Cao Y, Zhao H, Long F, Feng X, Li J, Pan X. A novel Fe 3+-stabilized magnetic polydopamine composite for enhanced selective adsorption and separation of Methylene blue from complex wastewater. JOURNAL OF HAZARDOUS MATERIALS 2020; 392:122263. [PMID: 32070929 DOI: 10.1016/j.jhazmat.2020.122263] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 02/07/2020] [Accepted: 02/08/2020] [Indexed: 05/12/2023]
Abstract
Herein, a novel Fe3+-stabilized magnetic polydopamine composite (Fe3O4/PDA-Fe3+) was facilely constructed, systematically characterized, and subsequently applied for the first time as a versatile adsorbent for treatment of Methylene blue (MB) in complex wastewater. Results showed that as-prepared material had prominent adsorption ability toward MB in its single dye solution over a wide pH range (3-10) with qmax value of 608.8 mg/g at 318 K. More interestingly, MB could be selectively captured by resulting adsorbent from mixed dye solutions (MB-cationic dye and MB-anionic dye) and complex aqueous solution with high ionic strength up to 0.5 mol/L NaCl. It was eventually revealed that the enhanced and selective adsorption of MB by as-resultant adsorbent was due to the synergistic effects between multiple uptake mechanisms. What's more, its adsorption efficiency toward MB in simulated wastewater still maintained higher than 80 % of its original uptake performance after several runs of adsorption-desorption. Additionally, it exhibited more superior uptake performance toward MB than commercial powder activated carbon (PAC) in column adsorption system. Thus, the outstanding sorption ability, unique capture selectivity, as well as excellent stability and recyclability for model wastewater endow it a promising candidate adsorbent for selective adsorption and separation of MB from complex wastewater.
Collapse
Affiliation(s)
- Bo Chen
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Yangrui Cao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Huinan Zhao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Fengxia Long
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Xiang Feng
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Juan Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Xuejun Pan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China.
| |
Collapse
|
10
|
Recent advances in functionalized polymer membranes for biofouling control and mitigation in forward osmosis. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117604] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
11
|
Gan G, Li X, Wang L, Fan S, Li J, Liang F, Chen A. Identification of Catalytic Active Sites in Nitrogen-Doped Carbon for Electrocatalytic Dechlorination of 1,2-Dichloroethane. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02853] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Guoqiang Gan
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Xinyong Li
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Liang Wang
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Shiying Fan
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Ji Li
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Feng Liang
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Aicheng Chen
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| |
Collapse
|
12
|
Facile synthesis of copper ions chelated sand via dopamine chemistry for recyclable and sustainable catalysis. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.04.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
13
|
Enhanced filtration performance and anti-biofouling properties of antibacterial polyethersulfone membrane for fermentation broth concentration. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.12.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
14
|
Development of Cu-Modified PVC and PU for Catalytic Generation of Nitric Oxide. COLLOIDS AND INTERFACES 2019. [DOI: 10.3390/colloids3010033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Nitric oxide (NO) generating surfaces are potentially promising for improving haemocompatibility of blood-contacting biomaterials. In the present report, Cu-modified poly(vinyl chloride) (PVC) and polyurethane (PU) were prepared via polydopamine (pDA)-assisted chelation. The copper content on the PVC and PU modified surfaces, assessed by inductively coupled plasma - optical emission spectrometry (ICP-OES), were about 3.86 and 6.04 nmol·cm−2, respectively. The Fourier-transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) data suggest that copper is attached to the polymer surface through complex formation with pDA. The cumulative leaching of copper from modified PVC and PU during the five day incubation in phosphate buffered saline (PBS), measured by inductively coupled plasma mass spectrometry (ICP-MS), was about 50.7 ppb and 48 ppb, respectively which is within its physiological level. Modified polymers were tested for their ability to catalytically generate NO by decomposing of endogenous S-nitrosothiol (GSNO). The obtained data show that Cu-modified PVC and PU exhibited the capacity to generate physiological levels of NO which could be a foundation for developing new biocompatible materials with NO-based therapeutics.
Collapse
|
15
|
Fan YJ, Pham MT, Huang CJ. Development of Antimicrobial and Antifouling Universal Coating via Rapid Deposition of Polydopamine and Zwitterionization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1642-1651. [PMID: 30114915 DOI: 10.1021/acs.langmuir.8b01730] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Biomaterials-associated infections (BAIs) are related to bacterial colonization on medical devices, which lead to a serious medical burden, such as increased healthcare cost, prolonged hospital stays, and high mortality and morbidity. To reduce the risk of infections, in this work, a new approach which makes use of a bioinspired coating with dual antimicrobial and antifouling functions was developed through rapid deposition of functional polydopamine (pDA) and antimicrobial copper ions, and subsequent conjugation of zwitterionic antifouling sulfobetaine (SB) moieties by the aza-Michael addition reaction. pDA permits surface-independent versatile functionalization on a variety of substrates, such as TiO2, SiO2, gold, plastics, and Nitinol alloy. The characterizations for chemical elemental compositions and hydrophilicity by X-ray photoelectron spectroscopy and contact angle goniometer, respectively, indicating the successful grafting of SB moieties and the presence of copper ions in the pDA adlayers. Ellipsometric thicknesses of the thin films were followed to monitor the formation of pDA films and the changes after the post conjugation. UV-vis spectroscopy and inductively coupled plasma-mass spectrometry revealed the coordination structure of catechol-Cu, and release profile of Cu2+ from the constructed functional coatings. The superhydrophilic and charge-balanced SB interface allowed effective resistance of bacterial adsorption. Intriguingly, we scrutinized that the release of bactericidal copper ions enables killing the residual amount of adsorbed bacteria. Moreover, viability tests for fibroblast cells indicate the excellent biocompatibility of the developed medical coatings. For real-world implementation, the antifouling and antimicrobial coatings were applied on commercially available silicone-based urinary catheters, and the existence of bacteria was evaluated by using the plate-counting assay. The results showed an undetectable level of living bacteria. Consequently, the dual functional medical coating offers a promising approach to eliminate BAIs for practical applications.
Collapse
|
16
|
Qi L, Hu Y, Liu Z, An X, Bar-Zeev E. Improved Anti-Biofouling Performance of Thin -Film Composite Forward-Osmosis Membranes Containing Passive and Active Moieties. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:9684-9693. [PMID: 30074383 DOI: 10.1021/acs.est.7b06382] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Forward osmosis (FO) has gained increasing attention in desalination, wastewater treatment, and power generation. However, biofouling remains a major obstacle for the sustainable development of the FO process. Both passive and active strategies have been developed to mitigate membrane biofouling. A comprehensive understanding of different strategies and mechanisms has fundamental significance for the antifouling membrane development. In this study, thin-film composite (TFC) FO membranes were modified with polydopamine (PDA) coating as a passive antibacterial moiety and silver nanoparticles (Ag NPs) as an active antibacterial moiety. Their anti-biofouling performances were investigated both in static and dynamic conditions. In static exposure, the PDA-coated membranes exhibited great passive anti-adhesive property, and the Ag-NP-generated membranes presented both of excellent passive anti-adhesive properties and active antibacterial performance. While in dynamic cross-flow running conditions, Ag NPs effectively mitigated the membrane water flux decline due to their inhibition of biofilm growth, the PDA coating failed because of its inability to inactivate the attached bacteria growth. Moreover, Ag NPs were stable and active on membrane surfaces after 24 h of cross-flow operation. These findings provide new insights into the performances and mechanisms of passive and active moieties in the FO process.
Collapse
Affiliation(s)
- Longbin Qi
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , PR China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation; Research Center for Coastal Environmental Engineering and Technology of Shandong Province; Yantai Institute of Coastal Zone Research , Chinese Academy of Sciences , Yantai , Shandong Province 264003 , PR China
- University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Yunxia Hu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , PR China
| | - Zhongyun Liu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation; Research Center for Coastal Environmental Engineering and Technology of Shandong Province; Yantai Institute of Coastal Zone Research , Chinese Academy of Sciences , Yantai , Shandong Province 264003 , PR China
| | - Xiaochan An
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation; Research Center for Coastal Environmental Engineering and Technology of Shandong Province; Yantai Institute of Coastal Zone Research , Chinese Academy of Sciences , Yantai , Shandong Province 264003 , PR China
- University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Edo Bar-Zeev
- Department of Environmental Hydrology & Microbiology, Zuckerberg Institute for Water Research (ZIWR) , Ben-Gurion University of the Negev , Beersheba , 8499000 Israel
| |
Collapse
|
17
|
Zhu J, Tsehaye MT, Wang J, Uliana A, Tian M, Yuan S, Li J, Zhang Y, Volodin A, Van der Bruggen B. A rapid deposition of polydopamine coatings induced by iron (III) chloride/hydrogen peroxide for loose nanofiltration. J Colloid Interface Sci 2018; 523:86-97. [DOI: 10.1016/j.jcis.2018.03.072] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 10/17/2022]
|
18
|
Liu Z, Qi L, An X, Liu C, Hu Y. Surface Engineering of Thin Film Composite Polyamide Membranes with Silver Nanoparticles through Layer-by-Layer Interfacial Polymerization for Antibacterial Properties. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40987-40997. [PMID: 29111650 DOI: 10.1021/acsami.7b12314] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
We developed a simple and facile approach to covalently immobilize Ag nanoparticles (NPs) onto polyamide surfaces of thin film composite membranes through layer-by-layer interfacial polymerization (LBL-IP) for biofouling mitigation. Stable and uniform bovine serum albumin (BSA) capped Ag NPs with an average diameter of around 20 nm were synthesized using BSA as a template under the assistance of sonication, and Ag NPs incorporated thin film composite (TFC) polyamide membrane was then fabricated by LBL-IP on a nanoporous polysulfone (PSf) substrate upon sequential coating with m-phenylenediamine (MPD) aqueous solution, trimesoyl chloride (TMC)-hexane solution, and finally BSA-capped Ag NPs aqueous solution. The influence of Ag NPs incorporation was investigated on the surface physicochemical properties, water permeability, and salt rejection of TFC polyamide membrane. Our findings show that Ag NPs functionalized membrane exhibited excellent antibacterial properties without sacrificing their permeability and rejection, and Ag NPs incorporation affected very little surface roughness and charge of polyamide layer. Moreover, the incorporated Ag NPs presented a low release rate and excellent stability on polyamide surface in cross-flow conditions. Given the simplicity and versatility of this approach, our study provides a practicable avenue for direct incorporation of various surface-tailored nanomaterials on the polyamide surface to develop high-performance TFC membranes with fouling-resistant properties on a large scale.
Collapse
Affiliation(s)
- Zhongyun Liu
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University , Tianjin 300387, China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai 264003, Shandong Province, China
| | - Longbin Qi
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai 264003, Shandong Province, China
| | - Xiaochan An
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai 264003, Shandong Province, China
| | - Caifeng Liu
- College of Chemistry and Chemical Engineering, Yantai University , Yantai 264000, Shandong Province, China
| | - Yunxia Hu
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University , Tianjin 300387, China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai 264003, Shandong Province, China
| |
Collapse
|
19
|
Padmavathy N, Samantaray PK, Ghosh LD, Madras G, Bose S. Selective cleavage of the polyphosphoester in crosslinked copper based nanogels: enhanced antibacterial performance through controlled release of copper. NANOSCALE 2017; 9:12664-12676. [PMID: 28828457 DOI: 10.1039/c7nr02446k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Polymeric architectures with controlled and well-defined structural features are required to render a sustainable antibacterial surface - a key requirement in the design of polymeric membranes for water purification. Herein, surface selective crosslinking of copper oxide-polyphosphoester (CuO-PPE) hybrid nanogels on to polyvinylidene fluoride-styrene maleic anhydride (PVDF/SMA) ultrafiltration membranes was developed. The hybrid nanogels, composed of PPE and CuO, with inherent antifouling and antibacterial properties, were crosslinked using a macroinitiator (polyethylene glycol, PEG) and subsequently grafted on to PVDF/SMA by alkyne-anhydride reaction. Partially hydrolysed SMA solubilizes membrane proteins and the phosphatase/phospholipase triggers the cleavage of PPE segments resulting in controlled release of Cu ions. This unique strategy renders the membrane surface antibacterial through sustained and controlled release of Cu ions thereby generating intracellular reactive oxygen species (ROS). In addition, the enhanced antibiofouling performance of these membranes is facilitated by the presence of the hydrophilic macroinitiator (PEG and PPE). The modified membranes designed in this study are durable and possess long-term stability due to strong covalent interaction between CuO-PPE and the PVDF/SMA membrane. Studies on the flux, porosity and protein adsorption of the membranes were performed. An enhanced flux recovery ratio was observed for the modified membrane due to the pendant PPE groups (from CuO-PPE) which prohibit irreversible protein adsorption on the PVDF surface. The cytotoxicity of CuO-PPE is greatly reduced because of an effective coverage of CuO by biocompatible PPEs. This study opens up new avenues of fabricating "smart" inorganic nanoparticles that can be confined in a soft hybrid polymeric gel network with controlled release of Cu ions thereby precluding ubiquitous bacterial treatment in water filtration systems.
Collapse
Affiliation(s)
- Nagarajan Padmavathy
- Department of Materials Engineering, Indian Institute of Science, Bangalore-560012, India.
| | | | | | | | | |
Collapse
|