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Zhu WB, Wang YY, Fan T, Zhu Y, Tang ZH, Huang P, Li YQ, Fu SY. Comprehensive Investigation of the Temperature-Dependent Electromechanical Behaviors of Carbon Nanotube/Polymer Composites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:8170-8179. [PMID: 38581390 DOI: 10.1021/acs.langmuir.4c00231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2024]
Abstract
The performances of flexible piezoresistive sensors based on polymer nanocomposites are significantly affected by the environmental temperature; therefore, comprehensively investigating the temperature-dependent electromechanical response behaviors of conductive polymer nanocomposites is crucial for developing high-precision flexible piezoresistive sensors in a wide-temperature range. Herein, carbon nanotube (CNT)/polydimethylsiloxane (PDMS) composites widely used for flexible piezoresistive sensors were prepared, and then the temperature-dependent electrical, mechanical, and electromechanical properties of the optimized CNT/PDMS composite in the temperature range from -150 to 150 °C were systematically investigated. At a low temperature of -150 °C, the CNT/PDMS composite becomes brittle with a compressive modulus of ∼1.2 MPa and loses its elasticity and reversible sensing capability. At a high temperature (above 90 °C), the CNT/PDMS composite softens, shows a fluid-like mechanical property, and loses its reversible sensing capability. In the temperature range from -60 to 90 °C, the CNT/PDMS composite exhibits good elasticity and reversible sensing behaviors and its modulus, resistivity, and sensing sensitivity decrease with an increasing temperature. At room temperature (30 °C), the CNT/PDMS composite exhibits better mechanical and piezoresistive stability than those at low and high temperatures. Given that environmental temperature changes have significant effects on the sensing performances of conductive polymer composites, the effect of ambient temperature changes must be considered when flexible piezoresistive sensors are designed and fabricated.
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Affiliation(s)
- Wei-Bin Zhu
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - You-Yong Wang
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, People's Republic of China
- School of Materials Science and Engineering, Hubei University of Automotive Technology, Shiyan, Hubei 442002, People's Republic of China
| | - Ting Fan
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, People's Republic of China
- School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, People's Republic of China
| | - Yu Zhu
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Zhen-Hua Tang
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Pei Huang
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Yuan-Qing Li
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Shao-Yun Fu
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, People's Republic of China
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Patel R, Soni M, Soyantar B, Shivangi S, Sutariya S, Saraf M, Goswami D. A clash of quorum sensing vs quorum sensing inhibitors: an overview and risk of resistance. Arch Microbiol 2023; 205:107. [PMID: 36881156 DOI: 10.1007/s00203-023-03442-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 02/08/2023] [Accepted: 02/15/2023] [Indexed: 03/08/2023]
Abstract
Indiscriminate use of antibiotics to treat microbial pathogens has caused emergence of multiple drug resistant strains. Most infectious diseases are caused by microbes that are capable of intercommunication using signaling molecules, which is known as quorum sensing (QS). Such pathogens express their pathogenicity through various QS-regulated virulence factors. Interference of QS could lead to decisive results in controlling such pathogenicity. Hence, QS inhibition has become an attractive new approach for the development of novel drugs. Many quorum sensing inhibitors (QSIs) of diverse origins have been reported. It is imperative that more such anti-QS compounds be found and studied, as they have significant effect on microbial pathogenicity. This review attempts to give a brief account of QS mechanism, its inhibition and describes some compounds with anti-QS potential. Also discussed is the possibility of emergence of quorum sensing resistance.
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Affiliation(s)
- Rohit Patel
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Mansi Soni
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Bilv Soyantar
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Suruchi Shivangi
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Swati Sutariya
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Meenu Saraf
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Dweipayan Goswami
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India.
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Medhi R, Cintora A, Guazzelli E, Narayan N, Leonardi AK, Galli G, Oliva M, Pretti C, Finlay JA, Clare AS, Martinelli E, Ober CK. Nitroxide-Containing Amphiphilic Random Terpolymers for Marine Antifouling and Fouling-Release Coatings. ACS APPLIED MATERIALS & INTERFACES 2023; 15:11150-11162. [PMID: 36802475 DOI: 10.1021/acsami.2c23213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Two types of amphiphilic random terpolymers, poly(ethylene glycol methyl ether methacrylate)-ran-poly(2,2,6,6-tetramethylpiperidinyloxy methacrylate)-ran-poly(polydimethyl siloxane methacrylate) (PEGMEMA-r-PTMA-r-PDMSMA), were synthesized and evaluated for antifouling (AF) and fouling-release (FR) properties using diverse marine fouling organisms. In the first stage of production, the two respective precursor amine terpolymers containing (2,2,6,6-tetramethyl-4-piperidyl methacrylate) units (PEGMEMA-r-PTMPM-r-PDMSMA) were synthesized by atom transfer radical polymerization using various comonomer ratios and two initiators: alkyl halide and fluoroalkyl halide. In the second stage, these were selectively oxidized to introduce nitroxide radical functionalities. Finally, the terpolymers were incorporated into a PDMS host matrix to create coatings. AF and FR properties were examined using the alga Ulva linza, the barnacle Balanus improvisus, and the tubeworm Ficopomatus enigmaticus. The effects of comonomer ratios on surface properties and fouling assay results for each set of coatings are discussed in detail. There were marked differences in the effectiveness of these systems against the different fouling organisms. The terpolymers had distinct advantages over monopolymeric systems across the different organisms, and the nonfluorinated PEG and nitroxide combination was identified as the most effective formulation against B. improvisus and F. enigmaticus.
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Affiliation(s)
- Riddhiman Medhi
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Alicia Cintora
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Elisa Guazzelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa 56124, Italy
| | - Nila Narayan
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Amanda K Leonardi
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa 56124, Italy
| | - Matteo Oliva
- Consorzio Interuniversitario di Biologia Marina e Ecologia Applicata "G. Bacci", Livorno 57128, Italy
| | - Carlo Pretti
- Consorzio Interuniversitario di Biologia Marina e Ecologia Applicata "G. Bacci", Livorno 57128, Italy
- Dipartimento di Scienze Veterinarie, Università di Pisa, Pisa 56124, Italy
| | - John A Finlay
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, U.K
| | - Anthony S Clare
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, U.K
| | - Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa 56124, Italy
| | - Christopher K Ober
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
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Romeu MJ, Lima M, Gomes LC, de Jong ED, Morais J, Vasconcelos V, Pereira MFR, Soares OSGP, Sjollema J, Mergulhão FJ. The Use of 3D Optical Coherence Tomography to Analyze the Architecture of Cyanobacterial Biofilms Formed on a Carbon Nanotube Composite. Polymers (Basel) 2022; 14:polym14204410. [PMID: 36297988 PMCID: PMC9607013 DOI: 10.3390/polym14204410] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 11/16/2022] Open
Abstract
The development of environmentally friendly antifouling strategies for marine applications is of paramount importance, and the fabrication of innovative nanocomposite coatings is a promising approach. Moreover, since Optical Coherence Tomography (OCT) is a powerful imaging technique in biofilm science, the improvement of its analytical power is required to better evaluate the biofilm structure under different scenarios. In this study, the effect of carbon nanotube (CNT)-modified surfaces in cyanobacterial biofilm development was assessed over a long-term assay under controlled hydrodynamic conditions. Their impact on the cyanobacterial biofilm architecture was evaluated by novel parameters obtained from three-dimensional (3D) OCT analysis, such as the contour coefficient, total biofilm volume, biovolume, volume of non-connected pores, and the average size of non-connected pores. The results showed that CNTs incorporated into a commercially used epoxy resin (CNT composite) had a higher antifouling effect at the biofilm maturation stage compared to pristine epoxy resin. Along with a delay in biofilm development, a decrease in biofilm wet weight, thickness, and biovolume was also achieved with the CNT composite compared to epoxy resin and glass (control surfaces). Additionally, biofilms developed on the CNT composite were smoother and presented a lower porosity and a strictly packed structure when compared with those formed on the control surfaces. The novel biofilm parameters obtained from 3D OCT imaging are extremely important when evaluating the biofilm architecture and behavior under different scenarios beyond marine applications.
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Affiliation(s)
- Maria J. Romeu
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Marta Lima
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Luciana C. Gomes
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Ed. D. de Jong
- Department of Biomedical Engineering, University of Groningen, University Medical Centre Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - João Morais
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - Vítor Vasconcelos
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Manuel F. R. Pereira
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- LSRE–LCM—Laboratory of Separation and Reaction Engineering–Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Olívia S. G. P. Soares
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- LSRE–LCM—Laboratory of Separation and Reaction Engineering–Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Jelmer Sjollema
- Department of Biomedical Engineering, University of Groningen, University Medical Centre Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Filipe J. Mergulhão
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- Correspondence: ; Tel.: +351-225081668
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5
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Antifouling Performance of Carbon-Based Coatings for Marine Applications: A Systematic Review. Antibiotics (Basel) 2022; 11:antibiotics11081102. [PMID: 36009971 PMCID: PMC9404944 DOI: 10.3390/antibiotics11081102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 01/01/2023] Open
Abstract
Although carbon materials are widely used in surface engineering, particularly graphene (GP) and carbon nanotubes (CNTs), the application of these nanocomposites for the development of antibiofilm marine surfaces is still poorly documented. The aim of this study was, thus, to gather and discuss the relevant literature concerning the antifouling performance of carbon-based coatings against marine micro- and macrofoulers. For this purpose, a PRISMA-oriented systematic review was conducted based on predefined criteria, which resulted in the selection of thirty studies for a qualitative synthesis. In addition, the retrieved publications were subjected to a quality assessment process based on an adapted Methodological Index for Non-Randomized Studies (MINORS) scale. In general, this review demonstrated the promising antifouling performance of these carbon nanomaterials in marine environments. Further, results from the revised studies suggested that functionalized GP- and CNTs-based marine coatings exhibited improved antifouling performance compared to these materials in pristine forms. Thanks to their high self-cleaning and enhanced antimicrobial properties, as well as durability, these functionalized composites showed outstanding results in protecting submerged surfaces from the settlement of fouling organisms in marine settings. Overall, these findings can pave the way for the development of new carbon-engineered surfaces capable of preventing marine biofouling.
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6
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Xiong G, Zhang Z, Qi Y. Preparation of g-C 3N 4/TNTs/CNTs Photocatalytic Composite Powder and Its Enhancement of Antifouling Performance of Polydimethylsiloxane Coatings. NANOMATERIALS 2022; 12:nano12142442. [PMID: 35889666 PMCID: PMC9320443 DOI: 10.3390/nano12142442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/10/2022] [Accepted: 07/15/2022] [Indexed: 02/05/2023]
Abstract
Semiconductor photocatalytic materials have shown potential in the field of antifouling due to their good antibacterial properties, stability, and nontoxic properties. It is an effective way to use them to improve the static antifouling performance of silicone antifouling coatings. g-C3N4/TNTs/CNTs (CNTC) photocatalytic composite powders were prepared and introduced into polydimethylsiloxane (PDMS) coatings to enhance their antifouling performance. Firstly, g-C3N4/TNTs with heterostructure were thermally polymerized by urea and TiO2 nanotubes (TNTs), and then g-C3N4/TNTs and multi-walled carbon nanotubes (CNTs) were composited to obtain CNTC. Finally, CNTC was added into PDMS to prepare g-C3N4/TNTs/CNTs/PDMS (CNTC/P) composite antifouling coating. The results showed that CNTC successfully recombined and formed a heterostructure, and the recombination rate of photogenerated carriers decreased after recombination. The addition of CNTC to PDMS increased the hydrophobicity and roughness while reducing the surface energy (SE) of the coatings. CNTC could effectively improve the anti-attachment performance of PDMS coatings to bacteria and benthic diatom. The bacterial attachment rate (AB) and benthic diatom attachment rate (AD) of CNTC/P-20 were, respectively, 13.1% and 63.1%; they are much lower than that of the coating without photocatalytic composite powder. This coating design provides a new idea for developing new “efficient” and “green” photocatalytic composite antifouling coatings.
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Affiliation(s)
- Gang Xiong
- Key Laboratory of Ship-Machinery Maintenance & Manufacture, Dalian Maritime University, Dalian 116000, China; (G.X.); (Y.Q.)
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116000, China
| | - Zhanping Zhang
- Key Laboratory of Ship-Machinery Maintenance & Manufacture, Dalian Maritime University, Dalian 116000, China; (G.X.); (Y.Q.)
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116000, China
- Correspondence:
| | - Yuhong Qi
- Key Laboratory of Ship-Machinery Maintenance & Manufacture, Dalian Maritime University, Dalian 116000, China; (G.X.); (Y.Q.)
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116000, China
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Barry ME, Aydogan Gokturk P, DeStefano AJ, Leonardi AK, Ober CK, Crumlin EJ, Segalman RA. Effects of Amphiphilic Polypeptoid Side Chains on Polymer Surface Chemistry and Hydrophilicity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:7340-7349. [PMID: 35089024 DOI: 10.1021/acsami.1c22683] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Polymers are commonly used in applications that require long-term exposure to water and aqueous mixtures, serving as water purification membranes, marine antifouling coatings, and medical implants, among many other applications. Because polymer surfaces restructure in response to the surrounding environment, in situ characterization is crucial for providing an accurate understanding of the surface chemistry under conditions of use. To investigate the effects of surface-active side chains on polymer surface chemistry and resultant interactions with interfacial water (i.e., water sorption), we present synchrotron ambient pressure X-ray photoelectron spectroscopy (APXPS) studies performed on poly(ethylene oxide) (PEO)- and poly(dimethylsiloxane) (PDMS)-based polymer surfaces modified with amphiphilic polypeptoid side chains, previously demonstrated to be efficacious in marine fouling prevention and removal. The polymer backbone and environmental conditions were found to affect polypeptoid surface presentation: due to the surface segregation of its fluorinated polypeptoid monomers under vacuum, the PEO-peptoid copolymer showed significant polypeptoid content in both vacuum and hydrated conditions, while the modified PDMS-based copolymer showed increased polypeptoid content only in hydrated conditions due to the hydrophilicity of the ether monomers and polypeptoid backbone. Polypeptoids were found to bind approximately 2.8 water molecules per monomer unit in both copolymers, and the PEO-peptoid surface showed substantial water sorption that suggests a surface with a more diffuse water/polymer interface. This work implies that side chains are ideal for tuning water affinity without altering the base polymer composition, provided that surface-driving groups are present to ensure activity at the interface. These types of systematic modifications will generate novel polymers that maximize bound interfacial water and can deliver surface-active groups to the surface to improve the effectiveness of polymer materials.
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Affiliation(s)
- Mikayla E Barry
- Materials Department, University of California, Santa Barbara, California 93106, United States
| | - Pinar Aydogan Gokturk
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Audra J DeStefano
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Amanda K Leonardi
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Christopher K Ober
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Ethan J Crumlin
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Rachel A Segalman
- Materials Department, University of California, Santa Barbara, California 93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
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8
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Leonardi A, Zhang AC, Düzen N, Aldred N, Finlay JA, Clarke JL, Clare AS, Segalman RA, Ober CK. Amphiphilic Nitroxide-Bearing Siloxane-Based Block Copolymer Coatings for Enhanced Marine Fouling Release. ACS APPLIED MATERIALS & INTERFACES 2021; 13:28790-28801. [PMID: 34105932 DOI: 10.1021/acsami.1c05266] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The buildup of organic matter and organisms on surfaces exposed to marine environments, known as biofouling, is a disruptive and costly process affecting maritime operations. Previous research has identified some of the surface characteristics particularly suited to the creation of antifouling and fouling-release surfaces, but there remains room for improvement against both macrofouling and microfouling organisms. Characterization of their adhesives has shown that many rely on oxidative chemistries. In this work, we explore the incorporation of the stable radical 2,2,6,6-tetramethylpipiderin-1-oxyl (TEMPO) as a component in an amphiphilic block copolymer system to act as an inhibitor for marine cements, disrupting adhesion of macrofouling organisms. Using polystyrene-b-poly(dimethylsiloxane-r-vinylmethysiloxane) block copolymers, pendent vinyl groups were functionalized with TEMPO and poly(ethylene glycol) to construct an amphiphilic material with redox active character. The antifouling and fouling-release performance of these materials was investigated through settlement and removal assays of three model fouling organisms and correlated to surface structure and chemistry. Surfaces showed significant antifouling character and fouling-release performance was increased substantially toward barnacles by the incorporation of stable radicals, indicating their potential for marine antifouling applications.
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Affiliation(s)
- Amanda Leonardi
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Aria C Zhang
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Nilay Düzen
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Nick Aldred
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, United Kingdom
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - John A Finlay
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Jessica L Clarke
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Anthony S Clare
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Rachel A Segalman
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, California 93110, United States
| | - Christopher K Ober
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
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Rahimi A, Stafslien SJ, Vanderwal L, Bahr J, Safaripour M, Finlay JA, Clare AS, Webster DC. Critical Amphiphilic Concentration: Effect of the Extent of Amphiphilicity on Marine Fouling-Release Performance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:2728-2739. [PMID: 33586437 DOI: 10.1021/acs.langmuir.0c03446] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Amphiphilic surfaces, containing both hydrophilic and hydrophobic domains, offer desirable performance for many applications such as marine coatings or anti-icing purposes. This work explores the effect of the concentration of amphiphilic moieties on converting a polyurethane (PU) system to a coating having fouling-release properties. A novel amphiphilic compound is synthesized and added at increasing amounts to a PU system, where the amount of the additive is the only variable in the study. The additive-modified surfaces are characterized by a variety of techniques including ATR-FTIR, XPS, contact angle measurements, and AFM. Surface characterizations indicate the presence of amphiphilic domains on the surface due to the introduction of the self-stratifying amphiphilic additive. The fouling-release properties of the surfaces are assessed with three biological assays using Ulva linza, Cellulophaga lytica, and Navicula Incerta as the test organisms. A change in the fouling-release performance is observed and plateaued once a certain amount of amphiphilicity is attained in the coating system, which we call the critical amphiphilic concentration (CAC).
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Affiliation(s)
- AliReza Rahimi
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Shane J Stafslien
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Lyndsi Vanderwal
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - James Bahr
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Maryam Safaripour
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - John A Finlay
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, U.K
| | - Anthony S Clare
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, U.K
| | - Dean C Webster
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
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10
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Carbon Nanotube/Poly(dimethylsiloxane) Composite Materials to Reduce Bacterial Adhesion. Antibiotics (Basel) 2020; 9:antibiotics9080434. [PMID: 32707936 PMCID: PMC7459730 DOI: 10.3390/antibiotics9080434] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 12/26/2022] Open
Abstract
Different studies have shown that the incorporation of carbon nanotubes (CNTs) into poly(dimethylsiloxane) (PDMS) enables the production of composite materials with enhanced properties, which can find important applications in the biomedical field. In the present work, CNT/PDMS composite materials have been prepared to evaluate the effects of pristine and chemically functionalized CNT incorporation into PDMS on the composite's thermal, electrical, and surface properties on bacterial adhesion in dynamic conditions. Initial bacterial adhesion was studied using a parallel-plate flow chamber assay performed in conditions prevailing in urinary tract devices (catheters and stents) using Escherichia coli as a model organism and PDMS as a control due to its relevance in these applications. The results indicated that the introduction of the CNTs in the PDMS matrix yielded, in general, less bacterial adhesion than the PDMS alone and that the reduction could be dependent on the surface chemistry of CNTs, with less adhesion obtained on the composites with pristine rather than functionalized CNTs. It was also shown CNT pre-treatment and incorporation by different methods affected the electrical properties of the composites when compared to PDMS. Composites enabling a 60% reduction in cell adhesion were obtained by CNT treatment by ball-milling, whereas an increase in electrical conductivity of seven orders of magnitude was obtained after solvent-mediated incorporation. The results suggest even at low CNT loading values (1%), these treatments may be beneficial for the production of CNT composites with application in biomedical devices for the urinary tract and for other applications where electrical conductance is required.
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11
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Guazzelli E, Martinelli E, Pelloquet L, Briand JF, Margaillan A, Bunet R, Galli G, Bressy C. Amphiphilic hydrolyzable polydimethylsiloxane- b-poly(ethyleneglycol methacrylate- co-trialkylsilyl methacrylate) block copolymers for marine coatings. II. Antifouling laboratory tests and field trials. BIOFOULING 2020; 36:378-388. [PMID: 32425065 DOI: 10.1080/08927014.2020.1762868] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/21/2020] [Accepted: 04/23/2020] [Indexed: 06/11/2023]
Abstract
Poly(dimethylsiloxane) (PDMS) elastomer coatings containing an amphiphilic hydrolyzable diblock copolymer additive were prepared and their potential as marine antifouling and antiadhesion materials was tested. The block copolymer additive consisted of a PDMS first block and a random poly(trialkylsilyl methacrylate (TRSiMA, R = butyl, isopropyl)-co-poly(ethyleneglycol) methacrylate (PEGMA) copolymer second block. PDMS-b-TRSiMA block copolymer additives without PEGMA units were also used as additives. The amphiphilic character of the coating surface was assessed in water using the captive air bubble technique for measurements of static and dynamic contact angles. The attachment of macro- and microorganisms on the coatings was evaluated by field tests and by performing adhesion tests to the barnacle Amphibalanus amphitrite and the green alga Ulva rigida. All the additive-based PDMS coatings showed better antiadhesion properties to A. amphitrite larvae than to U. rigida spores. Field tests provided meaningful information on the antifouling and fouling release activity of coatings over an immersion period of 23 months.
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Affiliation(s)
- Elisa Guazzelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Lucile Pelloquet
- Laboratoire MAPIEM, E.A.4323, SeaTech Ecole d'Ingénieur, Université de Toulon, Toulon Cedex 9, France
| | - Jean-François Briand
- Laboratoire MAPIEM, E.A.4323, SeaTech Ecole d'Ingénieur, Université de Toulon, Toulon Cedex 9, France
| | - André Margaillan
- Laboratoire MAPIEM, E.A.4323, SeaTech Ecole d'Ingénieur, Université de Toulon, Toulon Cedex 9, France
| | - Robert Bunet
- Institut Océanographique Paul Ricard, Six-Fours-les-Plages, France
| | - Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Christine Bressy
- Laboratoire MAPIEM, E.A.4323, SeaTech Ecole d'Ingénieur, Université de Toulon, Toulon Cedex 9, France
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12
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Hu P, Xie Q, Ma C, Zhang G. Silicone-Based Fouling-Release Coatings for Marine Antifouling. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:2170-2183. [PMID: 32013443 DOI: 10.1021/acs.langmuir.9b03926] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Marine biofouling profoundly influences marine industries and activities. It slows the speed and increases the fuel consumption of ships, corrodes offshore platforms, and blocks seawater pipelines. The most effective and economical antifouling approach uses coatings. Fouling-release coatings (FRCs) with low surface free energy and high elasticity weakly adhere to marine organisms, so they can be readily removed by the water shear force. FRCs have attracted increasing interest because they are biocide-free and hence ecofriendly. However, traditional silicone-based FRCs have weak adhesion to substrates, low mechanical strength, and low fouling resistance, limiting their applications. In recent years, many attempts have been made to improve their mechanical properties and fouling resistance. This review deals with the progress in the construction of high-performance silicone-based fouling-release surfaces.
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Affiliation(s)
- Peng Hu
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Qingyi Xie
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Chunfeng Ma
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Guangzhao Zhang
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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13
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Preparation and synergistic antifouling effect of self-renewable coatings containing quaternary ammonium-functionalized SiO2 nanoparticles. J Colloid Interface Sci 2020; 563:261-271. [DOI: 10.1016/j.jcis.2019.12.086] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 12/11/2022]
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14
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Amphiphilic hydrolyzable polydimethylsiloxane-b-poly(ethyleneglycol methacrylate-co-trialkylsilyl methacrylate) block copolymers for marine coatings. I. Synthesis, hydrolysis and surface wettability. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.121954] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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15
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Selim MS, El-Safty SA, Shenashen MA, Higazy SA, Elmarakbi A. Progress in biomimetic leverages for marine antifouling using nanocomposite coatings. J Mater Chem B 2020; 8:3701-3732. [DOI: 10.1039/c9tb02119a] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Because of the environmental and economic casualties of biofouling on maritime navigation, modern studies have been devoted toward formulating advanced nanoscale composites in the controlled development of effective marine antifouling self-cleaning surfaces.
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Affiliation(s)
- Mohamed S. Selim
- National Institute for Materials Science (NIMS)
- Ibaraki-ken 305-0047
- Japan
- Petroleum Application Department
- Egyptian Petroleum Research Institute
| | - Sherif A. El-Safty
- National Institute for Materials Science (NIMS)
- Ibaraki-ken 305-0047
- Japan
| | - Mohamed A. Shenashen
- National Institute for Materials Science (NIMS)
- Ibaraki-ken 305-0047
- Japan
- Petroleum Application Department
- Egyptian Petroleum Research Institute
| | - Shimaa A. Higazy
- Petroleum Application Department
- Egyptian Petroleum Research Institute
- Cairo
- Egypt
| | - Ahmed Elmarakbi
- Department of Mechanical & Construction Engineering
- Faculty of Engineering and Environment
- Northumbria University
- Newcastle upon Tyne
- UK
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16
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Hong T, Cao PF, Zhao S, Li B, Smith C, Lehmann M, Erwin AJ, Mahurin SM, Venna SR, Sokolov AP, Saito T. Tailored CO2-philic Gas Separation Membranes via One-Pot Thiol–ene Chemistry. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00497] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Peng-Fei Cao
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | | | - Bingrui Li
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Connor Smith
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Michelle Lehmann
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Andrew J. Erwin
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Shannon M. Mahurin
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Surendar R. Venna
- National Energy Technology Laboratory/AECOM, 626 Cochrans Mill Road, Pittsburgh, Pennsylvania 15236, United States
| | - Alexei P. Sokolov
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Tomonori Saito
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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17
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Gevaux L, Lejars M, Margaillan A, Briand JF, Bunet R, Bressy C. Hydrolyzable Additive-Based Silicone Elastomers: A New Approach for Antifouling Coatings. Polymers (Basel) 2019; 11:E305. [PMID: 30960289 PMCID: PMC6419558 DOI: 10.3390/polym11020305] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 02/08/2019] [Accepted: 02/08/2019] [Indexed: 01/27/2023] Open
Abstract
Fouling Release Coatings are marine antifouling coatings based on silicone elastomers. Contrary to commonly used biocide-based antifouling coatings, they do not release biocides into the marine environment, however, they suffer from poor antifouling efficacy during idle periods. To improve their antifouling performances in static conditions, various amounts of hydrolyzable polymers were incorporated within a silicone matrix. These hydrolyzable polymers were chosen for the well-known hydrolytic degradation mechanism of their main chain, e.g. poly(ε-caprolactone) (PCL), or of their ester pending groups, e.g. poly(bis(trimethylsilyloxy)methylsilyl methacrylate) (PMATM2). The degradation kinetics of such hydrolyzable silicone coatings were assessed by mass loss measurements during immersion in deionized water. Coatings containing PMATM2 exhibited a maximum mass loss after 12 weeks, whereas PCL-based coatings showed no significant mass loss after 24 weeks. Dynamic contact angle measurements revealed the modifications of the coatings surface chemistry with an amphiphilic behavior after water exposure. The attachment of macrofoulers on these coatings were evaluated by field tests in the Mediterranean Sea, demonstrating the short or long-term antifouling effect of these hydrolyzable polymers embedded in the silicone matrix. The settlement of A. amphitrite barnacles on the different coatings indicated inhospitable behaviors towards larval barnacles for coatings with at least 15 wt % of additives.
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Affiliation(s)
- Laure Gevaux
- Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM), Université de Toulon, EA 4323, 83957 La Garde, France.
| | - Marlène Lejars
- Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM), Université de Toulon, EA 4323, 83957 La Garde, France.
| | - André Margaillan
- Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM), Université de Toulon, EA 4323, 83957 La Garde, France.
| | - Jean-François Briand
- Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM), Université de Toulon, EA 4323, 83957 La Garde, France.
| | - Robert Bunet
- Institut Océanographique Paul Ricard, Ile des Embiez, 83140 Six-Fours-les-Plages, France.
| | - Christine Bressy
- Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM), Université de Toulon, EA 4323, 83957 La Garde, France.
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18
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Wu HX, Zhang XH, Huang L, Ma LF, Liu CJ. Diblock Polymer Brush (PHEAA- b-PFMA): Microphase Separation Behavior and Anti-Protein Adsorption Performance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11101-11109. [PMID: 30148645 DOI: 10.1021/acs.langmuir.8b02584] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this paper, a series of amphiphilic diblock polymers of poly(hydroxyethylacrylamide)- b-poly(1H,1H-pentafluoropropyl methacrylate) (PHEAA- b-PFMA) were grafted from silicon wafer via surface-initiated atom transfer radical polymerization (SI-ATRP). Surface wettability and chemical compositions of the modified surfaces were characterized by contact angle goniometer and X-ray photoelectron spectroscopy (XPS) respectively. Molecular weight and polydispersity of each block were measured using gel permeation chromatography (GPC). The topography and the microphase separation behavior of PHEAA- b-PFMA surfaces were investigated by atomic force microscope (AFM). The results show that only when the grafting density (σ) and thickness of PHEAA brush were in the range of 0.9-1.3 (chain/nm2) and 6.6-15.1 nm, respectively, and the ratio of PFMA/PHEAA varied from 89/42 to 89/94, could the diblock copolymer phase separate into nanostructures. Further, the antiprotein adsorption performance of the modified surfaces against BSA, fibrinogen, and lysozyme was studied. The results indicated the modified surfaces could reduce the protein adsorption compared to the pristine silicon wafer. For Fibrinogen, the antiadsorption effect of PHEAA- b-PFMA-modified surfaces with microphase segregation was better than that of corresponding PHEAA modified surfaces. The results provide further evidence that surface composition and microphase segregation of fluorinated moieties of block copolymer brushes significantly impact protein adsorption behaviors.
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Affiliation(s)
- Hai-Xia Wu
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science , Wuhan University , Wuhan 430072 , P. R. China
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials , Luoyang Normal University , Luoyang 471022 , P. R. China
| | - Xiao-Hong Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science , Wuhan University , Wuhan 430072 , P. R. China
| | - Lin Huang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science , Wuhan University , Wuhan 430072 , P. R. China
| | - Lu-Fang Ma
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials , Luoyang Normal University , Luoyang 471022 , P. R. China
| | - Chuan-Jun Liu
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science , Wuhan University , Wuhan 430072 , P. R. China
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19
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Azimi H, Ebneyamini A, Tezel FH, Thibault J. Separation of Organic Compounds from ABE Model Solutions via Pervaporation Using Activated Carbon/PDMS Mixed Matrix Membranes. MEMBRANES 2018; 8:E40. [PMID: 29996486 PMCID: PMC6161144 DOI: 10.3390/membranes8030040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/03/2018] [Accepted: 07/05/2018] [Indexed: 11/17/2022]
Abstract
The pervaporation separation of organic compounds from acetone-butanol-ethanol (ABE) fermentation model solutions was studied using activated carbon (AC) nanoparticle-poly (dimethylsiloxane) (PDMS) mixed matrix membranes (MMM). The effects of the operating conditions and nanoparticle loading content on the membrane performance have been investigated. While the separation factor increased continuously, with an increase in the concentration of nanoparticles, the total flux reached a maximum in the MMM with 8 wt % nanoparticle loading in PDMS. Both the separation factor for ABE and the total permeation flux more than doubled for the MMM in comparison to those of neat PDMS membranes prepared in this study.
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Affiliation(s)
- Hoda Azimi
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON K1N 6N5, Canada.
| | - Arian Ebneyamini
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON K1N 6N5, Canada.
| | - F Handan Tezel
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON K1N 6N5, Canada.
| | - Jules Thibault
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON K1N 6N5, Canada.
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20
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Jakobi V, Schwarze J, Finlay JA, Nolte KA, Spöllmann S, Becker HW, Clare AS, Rosenhahn A. Amphiphilic Alginates for Marine Antifouling Applications. Biomacromolecules 2018; 19:402-408. [DOI: 10.1021/acs.biomac.7b01498] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Victoria Jakobi
- Analytical
Chemistry - Biointerfaces, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Jana Schwarze
- Analytical
Chemistry - Biointerfaces, Ruhr-University Bochum, 44780 Bochum, Germany
| | - John A. Finlay
- School
of Natural and Environmental Sciences, Newcastle University, Newcastle
upon Tyne NE1 7RU, United Kingdom
| | - Kim A. Nolte
- Analytical
Chemistry - Biointerfaces, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Stephan Spöllmann
- RUBION,
Central unit for ion beams and radionuclides, University of Bochum, 44780 Bochum, Germany
| | - Hans-Werner Becker
- RUBION,
Central unit for ion beams and radionuclides, University of Bochum, 44780 Bochum, Germany
| | - Anthony S. Clare
- School
of Natural and Environmental Sciences, Newcastle University, Newcastle
upon Tyne NE1 7RU, United Kingdom
| | - Axel Rosenhahn
- Analytical
Chemistry - Biointerfaces, Ruhr-University Bochum, 44780 Bochum, Germany
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21
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The Preparation and Properties of Fluoroacrylate-Modified Polysiloxane as a Fabric Coating Agent. COATINGS 2018. [DOI: 10.3390/coatings8010031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Pan Z, Cheng F, Zhao B. Bio-Inspired Polymeric Structures with Special Wettability and Their Applications: An Overview. Polymers (Basel) 2017; 9:E725. [PMID: 30966026 PMCID: PMC6418807 DOI: 10.3390/polym9120725] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/08/2017] [Accepted: 12/14/2017] [Indexed: 12/15/2022] Open
Abstract
It is not unusual for humans to be inspired by natural phenomena to develop new advanced materials; such materials are called bio-inspired materials. Interest in bio-inspired polymeric superhydrophilic, superhydrophobic, and superoleophobic materials has substantially increased over the last few decades, as has improvement in the related technologies. This review reports the latest developments in bio-inspired polymeric structures with desired wettability that have occurred by mimicking the structures of lotus leaf, rose petals, and the wings and shells of various creatures. The intrinsic role of surface chemistry and structure on delivering superhydrophilicity, superhydrophobicity, and superoleophobicity has been extensively explored. Typical polymers, commonly used structures, and techniques involved in developing bio-inspired surfaces with desired wettability are discussed. Additionally, the latest applications of bio-inspired structures with desired wettability in human activities are also introduced.
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Affiliation(s)
- Zihe Pan
- Institute of Resources and Environmental Engineering, Shanxi University, 92 Wucheng Road, Xiaodian District, Taiyuan 030006, Shanxi, China.
- Shanxi Collaborative Innovation Center of High Value-Added Utilization of Coal-Related Wastes, Taiyuan 030006, Shanxi, China.
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
| | - Fangqin Cheng
- Institute of Resources and Environmental Engineering, Shanxi University, 92 Wucheng Road, Xiaodian District, Taiyuan 030006, Shanxi, China.
- Shanxi Collaborative Innovation Center of High Value-Added Utilization of Coal-Related Wastes, Taiyuan 030006, Shanxi, China.
| | - Boxin Zhao
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
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23
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The Dispersion Tolerance of Micro/Nano Particle in Polydimethylsiloxane and Its Influence on the Properties of Fouling Release Coatings Based on Polydimethylsiloxane. COATINGS 2017. [DOI: 10.3390/coatings7070107] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Particles can be used to improve the mechanical properties of fouling release coatings based on polydimethylsiloxane (PDMS). In this study, coatings were prepared by high speed stirring using seven types of particles, with different particle size from nanometer to micrometer. The influence of specific surface area of the particles on the dispersion tolerance was investigated. The results showed that the dispersion tolerance of particles in PDMS decreased with the increase in specific surface area of the particle, and for nano particles, the factor most affecting the dispersion tolerance was the specific surface area of agglomerate particle. Subsequently, the surface properties, mechanical properties, and biofilm adhesion assay of coatings were investigated. Results indicated that surface roughness increased with the increase of dispersion tolerance. Surface roughness of samples improved the hydrophobicity of samples, yet the polar chemical group of nano silica and fumed silica reduced the hydrophobicity of samples. Further, particles could enhance the mechanical properties of coating, especially nano particles. Compared to the coating without particle, biofilm adhesion performance of coating with particles decreased, which was determined by the increase of the elastic modulus and surface roughness of coatings.
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24
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Wenning BM, Martinelli E, Mieszkin S, Finlay JA, Fischer D, Callow JA, Callow ME, Leonardi AK, Ober CK, Galli G. Model Amphiphilic Block Copolymers with Tailored Molecular Weight and Composition in PDMS-Based Films to Limit Soft Biofouling. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16505-16516. [PMID: 28429593 DOI: 10.1021/acsami.7b03168] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A set of controlled surface composition films was produced utilizing amphiphilic block copolymers dispersed in a cross-linked poly(dimethylsiloxane) network. These block copolymers contained oligo(ethylene glycol) (PEGMA) and fluoroalkyl (AF6) side chains in selected ratios and molecular weights to control surface chemistry including antifouling and fouling-release performance. Such properties were assessed by carrying out assays using two algae, the green macroalga Ulva linza (favors attachment to polar surfaces) and the unicellular diatom Navicula incerta (favors attachment to nonpolar surfaces). All films performed well against U. linza and exhibited high removal of attached sporelings (young plants) under an applied shear stress, with the lower molecular weight block copolymers being the best performing in the set. The composition ratios from 50:50 to 60:40 of the AF6/PEGMA side groups were shown to be more effective, with several films exhibiting spontaneous removal of the sporelings. The cells of N. incerta were also removed from several coating compositions. All films were characterized by surface techniques including captive bubble contact angle, atomic force microscopy, and near edge X-ray absorption fine structure spectroscopy to correlate surface chemistry and morphology with biological performance.
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Affiliation(s)
- Brandon M Wenning
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa , Pisa 56124, Italy
| | - Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa , Pisa 56124, Italy
| | - Sophie Mieszkin
- School of Biosciences, The University of Birmingham , Edgbaston, Birmingham B15 5TT, U.K
| | - John A Finlay
- School of Biosciences, The University of Birmingham , Edgbaston, Birmingham B15 5TT, U.K
| | - Daniel Fischer
- National Institute of Standards and Technology , Gaithersburg, Maryland 20899, United States
| | - James A Callow
- School of Biosciences, The University of Birmingham , Edgbaston, Birmingham B15 5TT, U.K
| | - Maureen E Callow
- School of Biosciences, The University of Birmingham , Edgbaston, Birmingham B15 5TT, U.K
| | | | | | - Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa , Pisa 56124, Italy
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25
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Patterson AL, Wenning B, Rizis G, Calabrese DR, Finlay JA, Franco SC, Zuckermann RN, Clare AS, Kramer EJ, Ober CK, Segalman RA. Role of Backbone Chemistry and Monomer Sequence in Amphiphilic Oligopeptide- and Oligopeptoid-Functionalized PDMS- and PEO-Based Block Copolymers for Marine Antifouling and Fouling Release Coatings. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02505] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | | | | | - John A. Finlay
- School
of Marine Science and Technology, Newcastle University, Newcastle
upon Tyne NE17RU, U.K
| | - Sofia C. Franco
- School
of Marine Science and Technology, Newcastle University, Newcastle
upon Tyne NE17RU, U.K
| | - Ronald N. Zuckermann
- The
Molecular
Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Anthony S. Clare
- School
of Marine Science and Technology, Newcastle University, Newcastle
upon Tyne NE17RU, U.K
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26
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Galli G, Martinelli E. Amphiphilic Polymer Platforms: Surface Engineering of Films for Marine Antibiofouling. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201600704] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 12/31/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM; Università di Pisa; 56124 Pisa Italy
| | - Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM; Università di Pisa; 56124 Pisa Italy
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27
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Natarajan S, Lakshmi DS, Bhuvaneshwari M, Iswarya V, Mrudula P, Chandrasekaran N, Mukherjee A. Antifouling activities of pristine and nanocomposite chitosan/TiO 2/Ag films against freshwater algae. RSC Adv 2017; 7:27645-27655. [DOI: 10.1039/c7ra03876c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023] Open
Abstract
Adhesion of microalgae or biofouling on submerged artificial surfaces is a universal problem in freshwater environments.
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Affiliation(s)
| | - D. Shanthana Lakshmi
- Reverse Osmosis Membrane Division
- CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Council of Scientific and Industrial Research (CSIR)
- Bhavnagar-364 002
- India
| | | | - V. Iswarya
- Centre for Nanobiotechnology
- VIT University
- Vellore-632 014
- India
| | - P. Mrudula
- Centre for Nanobiotechnology
- VIT University
- Vellore-632 014
- India
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28
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PDMS-based films containing surface-active amphiphilic block copolymers to combat fouling from barnacles B. amphitrite and B. improvisus. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.12.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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29
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30
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Martinelli E, Gunes D, Wenning BM, Ober CK, Finlay JA, Callow ME, Callow JA, Di Fino A, Clare AS, Galli G. Effects of surface-active block copolymers with oxyethylene and fluoroalkyl side chains on the antifouling performance of silicone-based films. BIOFOULING 2016; 32:81-93. [PMID: 26769148 DOI: 10.1080/08927014.2015.1131822] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Block copolymers made from a poly(dimethyl siloxane) (Si) and a poly(meth)acrylate carrying oxyethylene (EG) or fluoroalkyl (AF) side chains were synthesized and incorporated as surface-active components into a silicone matrix to produce cross-linked films with different surface hydrophilicity/phobicity. Near-edge X-ray absorption fine structure (NEXAFS) studies showed that film surfaces containing Si-EG were largely populated by the siloxane, with the oxyethylene chains present only to a minor extent. In contrast, the fluorinated block was selectively segregated to the polymer-air interface in films containing Si-AF as probed by NEXAFS and X-ray photoelectron spectroscopy (XPS) analyses. Such differences in surface composition were reflected in the biological performance of the coatings. While the films with Si-EG showed a higher removal of both Ulva linza sporelings and Balanus amphitrite juveniles than the silicone control, those with Si-AF exhibited excellent antifouling properties, preventing the settlement of cyprids of B. amphitrite.
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Affiliation(s)
- Elisa Martinelli
- a Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM , Università di Pisa , Pisa , Italy
| | - Deniz Gunes
- a Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM , Università di Pisa , Pisa , Italy
| | - Brandon M Wenning
- b Department of Materials Science and Engineering , Cornell University , Ithaca, New York , USA
| | - Christopher K Ober
- b Department of Materials Science and Engineering , Cornell University , Ithaca, New York , USA
| | - John A Finlay
- c School of Biosciences, University of Birmingham , Birmingham , UK
| | - Maureen E Callow
- c School of Biosciences, University of Birmingham , Birmingham , UK
| | - James A Callow
- c School of Biosciences, University of Birmingham , Birmingham , UK
| | - Alessio Di Fino
- d School of Marine Science and Technology , Newcastle University , Newcastle-upon-Tyne , UK
| | - Anthony S Clare
- d School of Marine Science and Technology , Newcastle University , Newcastle-upon-Tyne , UK
| | - Giancarlo Galli
- a Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM , Università di Pisa , Pisa , Italy
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31
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Galli G, Barsi D, Martinelli E, Glisenti A, Finlay JA, Callow ME, Callow JA. Copolymer films containing amphiphilic side chains of well-defined fluoroalkyl-segment length with biofouling-release potential. RSC Adv 2016. [DOI: 10.1039/c6ra15104c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel methacrylate copolymers containing polysiloxane (SiMA) and mixed poly(ethyleneglycol)-perfluorohexyl side chains (MEF) were synthesised and dispersed as surface-active additives in crosslinked PDMS films.
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Affiliation(s)
- Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM
- Università di Pisa
- 56124 Pisa
- Italy
| | - David Barsi
- Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM
- Università di Pisa
- 56124 Pisa
- Italy
| | - Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM
- Università di Pisa
- 56124 Pisa
- Italy
| | | | - John A. Finlay
- School of Biosciences
- University of Birmingham
- Birmingham B15 2TT
- UK
| | | | - James A. Callow
- School of Biosciences
- University of Birmingham
- Birmingham B15 2TT
- UK
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32
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Synthesis and morphology of polyacrylate-poly(dimethyl siloxane) block copolymers for membrane application. Macromol Res 2015. [DOI: 10.1007/s13233-015-3112-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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33
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Martinelli E, Del Moro I, Galli G, Barbaglia M, Bibbiani C, Mennillo E, Oliva M, Pretti C, Antonioli D, Laus M. Photopolymerized Network Polysiloxane Films with Dangling Hydrophilic/Hydrophobic Chains for the Biofouling Release of Invasive Marine Serpulid Ficopomatus enigmaticus. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8293-8301. [PMID: 25835588 DOI: 10.1021/acsami.5b01522] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Novel photopolymerized network films based on a polysiloxane matrix containing varied amounts of polyoxyethylene (P3) or perfluorohexylethyl (F) dangling side chains were investigated. For films containing less than 10 wt % P3 and F, the wettability and elastic modulus were similar to those of the photopolymerized network matrix. However, angle-resolved X-ray photoelectron spectroscopy measurements proved that the surface of films with F dangling chains was highly enriched in fluorine depending on both the amount of P3 and F and their relative ratio in the films. The biological performance of the films was evaluated against a new widespread and invasive marine biofoulant, the serpulid Ficopomatus enigmaticus. The diatom Navicula salinicola was also assayed as a conventional model organism for comparison. Films richer in P3 better resisted the settlement and promoted the release of calcified tubeworms of F. enigmaticus.
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Affiliation(s)
- Elisa Martinelli
- †Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM, Università di Pisa, 56124 Pisa, Italy
| | - Ilaria Del Moro
- †Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM, Università di Pisa, 56124 Pisa, Italy
| | - Giancarlo Galli
- †Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM, Università di Pisa, 56124 Pisa, Italy
| | - Martina Barbaglia
- ‡Dipartimento di Scienze Veterinarie, Università di Pisa, 56126 Pisa, Italy
| | - Carlo Bibbiani
- ‡Dipartimento di Scienze Veterinarie, Università di Pisa, 56126 Pisa, Italy
| | - Elvira Mennillo
- ‡Dipartimento di Scienze Veterinarie, Università di Pisa, 56126 Pisa, Italy
| | - Matteo Oliva
- ‡Dipartimento di Scienze Veterinarie, Università di Pisa, 56126 Pisa, Italy
| | - Carlo Pretti
- ‡Dipartimento di Scienze Veterinarie, Università di Pisa, 56126 Pisa, Italy
| | - Diego Antonioli
- §Dipartimento di Scienze ed Innovazione Tecnologica, Università del Piemonte Orientale, 15100 Alessandria, Italy
| | - Michele Laus
- §Dipartimento di Scienze ed Innovazione Tecnologica, Università del Piemonte Orientale, 15100 Alessandria, Italy
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34
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Anti-fouling Coatings of Poly(dimethylsiloxane) Devices for Biological and Biomedical Applications. J Med Biol Eng 2015; 35:143-155. [PMID: 25960703 PMCID: PMC4414934 DOI: 10.1007/s40846-015-0029-4] [Citation(s) in RCA: 211] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 01/13/2014] [Indexed: 01/07/2023]
Abstract
Fouling initiated by nonspecific protein adsorption is a great challenge in biomedical applications, including biosensors, bioanalytical devices, and implants. Poly(dimethylsiloxane) (PDMS), a popular material with many attractive properties for device fabrication in the biomedical field, suffers serious fouling problems from protein adsorption due to its hydrophobic nature, which limits the practical use of PDMS-based devices. Effort has been made to develop biocompatible materials for anti-fouling coatings of PDMS. In this review, typical nonfouling materials for PDMS coatings are introduced and the associated basic anti-fouling mechanisms, including the steric repulsion mechanism and the hydration layer mechanism, are described. Understanding the relationships between the characteristics of coating materials and the accompanying anti-fouling mechanisms is critical for preparing PDMS coatings with desirable anti-fouling properties.
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35
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36
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Martinelli E, Guazzelli E, Bartoli C, Gazzarri M, Chiellini F, Galli G, Callow ME, Callow JA, Finlay JA, Hill S. Amphiphilic pentablock copolymers and their blends with PDMS for antibiofouling coatings. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27554] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale; UdR Pisa INSTM, Università di Pisa; via G. Moruzzi 3 56124 Pisa Italy
| | - Elisa Guazzelli
- Dipartimento di Chimica e Chimica Industriale; UdR Pisa INSTM, Università di Pisa; via G. Moruzzi 3 56124 Pisa Italy
| | - Cristina Bartoli
- Dipartimento di Chimica e Chimica Industriale; UdR Pisa INSTM, Università di Pisa; via G. Moruzzi 3 56124 Pisa Italy
| | - Matteo Gazzarri
- Dipartimento di Chimica e Chimica Industriale; UdR Pisa INSTM, Università di Pisa; via G. Moruzzi 3 56124 Pisa Italy
| | - Federica Chiellini
- Dipartimento di Chimica e Chimica Industriale; UdR Pisa INSTM, Università di Pisa; via G. Moruzzi 3 56124 Pisa Italy
| | - Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale; UdR Pisa INSTM, Università di Pisa; via G. Moruzzi 3 56124 Pisa Italy
| | - Maureen E. Callow
- School of Biosciences, University of Birmingham; Birmingham B15 2TT United Kingdom
| | - James A. Callow
- School of Biosciences, University of Birmingham; Birmingham B15 2TT United Kingdom
| | - John A. Finlay
- School of Biosciences, University of Birmingham; Birmingham B15 2TT United Kingdom
| | - Sophie Hill
- School of Biosciences, University of Birmingham; Birmingham B15 2TT United Kingdom
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37
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Dimartino S, Mather AV, Alestra T, Nawada S, Haber M. Experimental and computational analysis of a novel flow channel to assess the adhesion strength of sessile marine organisms. Interface Focus 2015; 5:20140059. [PMID: 25657838 DOI: 10.1098/rsfs.2014.0059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Bioadhesives produced by marine macroalgae represent a potential source of inspiration for the development of water-resistant adhesives. Assessing their adhesion strength, however, remains difficult owing to low volumes of adhesive material produced, low solubility and rapid curing time. These difficulties can be circumvented by testing the adhesion strength of macroalgae propagules attached to a substrate. In this paper, we present a simple, novel flow channel used to test the adhesion strength of the germlings of the fucalean alga Hormosira banksii to four substrates of biomedical relevance (PMMA, agar, gelatin and gelatin + lipid). The adhesion strength of H. banksii germlings was found to increase in a time-dependent manner, with minimal adhesion success after a settlement period of 6 h and maximum adhesion strength achieved 24 h after initial settlement. Adhesion success increased most dramatically between 6 and 12 h settlement time, while no additional increase in adhesion strength was recorded for settlement times over 24 h. No significant difference in adhesion strength to the various substrates was observed. Computational fluid dynamics (CFD) was used to estimate the influence of fluid velocity and germling density on drag force acting on the settled organisms. CFD modelling showed that, on average, the drag force decreased with increasing germling number, suggesting that germlings would benefit from gregarious settlement behaviour. Collectively, our results contribute to a better understanding of the mechanisms allowing benthic marine organisms to thrive in hydrodynamically stressful environments and provide useful insights for further investigations.
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Affiliation(s)
- Simone Dimartino
- Department of Chemical and Process Engineering , University of Canterbury , Christchurch , New Zealand ; Biomolecular Interaction Centre , University of Canterbury , Christchurch , New Zealand
| | - Anton V Mather
- Department of Biological Sciences , University of Canterbury , Christchurch , New Zealand
| | - Tommaso Alestra
- Department of Biological Sciences , University of Canterbury , Christchurch , New Zealand
| | - Suhas Nawada
- Biomolecular Interaction Centre , University of Canterbury , Christchurch , New Zealand
| | - Meir Haber
- Biota Ltd , PO Box 220, Or Akiva 30600 , Israel
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38
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Risangud N, Li Z, Anastasaki A, Wilson P, Kempe K, Haddleton DM. Hydrosilylation as an efficient tool for polymer synthesis and modification with methacrylates. RSC Adv 2015. [DOI: 10.1039/c4ra14956d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hydrosilylation is a well-established reaction for the preparation of organo-silicon compounds, in which vinyl groups react with silanes (Si–H) usually catalysed by late transition metal complexes, most often Pt(ii) complexes.
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Affiliation(s)
| | - Zhijian Li
- Department of Chemistry
- University of Warwick
- Coventry
- UK
| | | | - Paul Wilson
- Department of Chemistry
- University of Warwick
- Coventry
- UK
| | | | - David M. Haddleton
- Department of Chemistry
- University of Warwick
- Coventry
- UK
- Monash Institute of Pharmaceutical Sciences
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39
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Nurioglu AG, Esteves ACC, de With G. Non-toxic, non-biocide-release antifouling coatings based on molecular structure design for marine applications. J Mater Chem B 2015; 3:6547-6570. [DOI: 10.1039/c5tb00232j] [Citation(s) in RCA: 242] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Antifouling (AF) coatings bring economic benefits but raise environmental and health concerns. Non-toxic, non-biocide-release AF strategies are reviewed according to “detachment of biofoulants” and “prevention of attachment” approaches. Chemical and physical aspects of AF mechanisms and new amphiphilic, superhydrophilic and topographic AF strategies are discussed.
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Affiliation(s)
- Ayda G. Nurioglu
- Laboratory of Materials and Interface Chemistry
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- Eindhoven
- Netherlands
| | - A. Catarina C. Esteves
- Laboratory of Materials and Interface Chemistry
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- Eindhoven
- Netherlands
| | - Gijsbertus de With
- Laboratory of Materials and Interface Chemistry
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- Eindhoven
- Netherlands
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40
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Trepos R, Cervin G, Pile C, Pavia H, Hellio C, Svenson J. Evaluation of cationic micropeptides derived from the innate immune system as inhibitors of marine biofouling. BIOFOULING 2015; 31:393-403. [PMID: 26057499 DOI: 10.1080/08927014.2015.1048238] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 04/30/2015] [Indexed: 06/04/2023]
Abstract
A series of 13 short synthetic amphiphilic cationic micropeptides, derived from the antimicrobial iron-binding innate defence protein lactoferrin, have been evaluated for their capacity to inhibit the marine fouling process. The whole biofouling process was studied and microfouling organisms such as marine bacteria and microalgae were included as well as the macrofouling barnacle Balanus improvisus. In total 19 different marine fouling organisms (18 microfoulers and one macrofouler) were included and both the adhesion and growth of the microfoulers were investigated. It was shown that the majority of the peptides inhibited barnacle cyprid settlement via a reversible nontoxic mechanism, with IC50 values as low as 0.5 μg ml(-1). Six peptides inhibited adhesion and growth of microorganisms. Two of these were particularly active against the microfoulers with MIC-values ranging between 0.01 and 1 μg ml(-1), which is comparable with the commercial reference antifoulant SeaNine.
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Affiliation(s)
- Rozenn Trepos
- a School of Biological Sciences , University of Portsmouth , Portsmouth , UK
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41
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Martinelli E, Galli G, Glisenti A. Surface behavior of modified-polystyrene triblock copolymers with different macromolecular architectures. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.08.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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42
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Hippius C, Bütün V, Erel-Goktepe I. Bacterial anti-adhesive properties of a monolayer of zwitterionic block copolymer micelles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 41:354-62. [DOI: 10.1016/j.msec.2014.04.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 01/27/2014] [Accepted: 04/07/2014] [Indexed: 12/01/2022]
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43
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44
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Majik MS, Rodrigues C, Mascarenhas S, D'Souza L. Design and synthesis of marine natural product-based 1H-indole-2,3-dione scaffold as a new antifouling/antibacterial agent against fouling bacteria. Bioorg Chem 2014; 54:89-95. [PMID: 24875126 DOI: 10.1016/j.bioorg.2014.05.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 04/30/2014] [Accepted: 05/02/2014] [Indexed: 11/16/2022]
Abstract
Marine organisms such as seaweeds, sponges and corals protect their own surfaces from fouling by their high anesthetic, repellant, and settlement inhibition properties. Within the marine ecosystem, evolution has allowed for the development of certain antifouling properties. Isatin is a biologically active chemical produced by an Alteromonas sp. strain inhibiting the surface of embryos of the cardiean shrimp Palaemon macrodectylus, which protect them from the pathogenic fungus Lagenidium callinectes. In present study, an antibacterial activity of isatin and its synthetic analogues were evaluated against different fouling bacteria in order to explore the structure activity relationships for the first time. The synthesized compounds along with parent isatin were tested against different ecologically relevant marine microorganisms by using the Kirby-Bauer disc diffusion method. Few synthetically modified isatin exhibited potent inhibitory activity at concentration of 2 μg/disc against Planococcus donghaensis, Erythrobacter litoralis, Alivibrio salmonicida, Vibrio furnisii. Overall, the modified analogues showed stronger activity than the parent marine natural product (isatin) and hence 1H-indole-2,3-dione scaffold has immense potential as future antibacterial/antifouling candidate.
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Affiliation(s)
- Mahesh S Majik
- Bio-Organic Chemistry Laboratory, CSIR-National Institute of Oceanography, Dona-Paula Goa 403 004, India.
| | - Cheryl Rodrigues
- Bio-Organic Chemistry Laboratory, CSIR-National Institute of Oceanography, Dona-Paula Goa 403 004, India
| | - Stacey Mascarenhas
- Bio-Organic Chemistry Laboratory, CSIR-National Institute of Oceanography, Dona-Paula Goa 403 004, India
| | - Lisette D'Souza
- Bio-Organic Chemistry Laboratory, CSIR-National Institute of Oceanography, Dona-Paula Goa 403 004, India
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45
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46
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van Zoelen W, Buss HG, Ellebracht NC, Lynd NA, Fischer DA, Finlay J, Hill S, Callow ME, Callow JA, Kramer EJ, Zuckermann RN, Segalman RA. Sequence of Hydrophobic and Hydrophilic Residues in Amphiphilic Polymer Coatings Affects Surface Structure and Marine Antifouling/Fouling Release Properties. ACS Macro Lett 2014; 3:364-368. [PMID: 35590747 DOI: 10.1021/mz500090n] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Amphiphilic polymers, specifically combinations of hydrophilic and hydrophobic residues, have been shown to be effective as antifouling materials against the algae Ulva linza and Navicula diatoms. Here we use the inherent sequence specificity of polypeptoids made by solid-phase synthesis to show that the sequence of hydrophilic (methoxy) and hydrophobic (fluorinated) moieties affects both antifouling and fouling release of U. linza. The platform used to test these sequences was a polystyrene-b-poly(ethylene oxide-co-allyl glycidyl ether) (PS-b-P(EO-co-AGE)) scaffold, where the polypeptoids are attached to the scaffold using thiol-ene click chemistry. The fluorinated moiety is very surface active and directs the surface composition of the polymer thin film. The position and number of fluorinated groups in the polypeptoid are shown to affect both the surface composition and antifouling properties of the film. Specifically, the position of the fluorinated units in the peptoid chain changes the surface chemistry and the antifouling behavior, while the number of fluorinated residues affects the fouling-release properties.
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Affiliation(s)
- Wendy van Zoelen
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Hilda G. Buss
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Nathan C. Ellebracht
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | | | - Daniel A. Fischer
- Materials
Science and Engineering Laboratory, National Institute for Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - John Finlay
- School
of Biosciences, University of Birmingham, West Midlands B15 2TT, U.K
| | - Sophie Hill
- School
of Biosciences, University of Birmingham, West Midlands B15 2TT, U.K
| | - Maureen E. Callow
- School
of Biosciences, University of Birmingham, West Midlands B15 2TT, U.K
| | - James A. Callow
- School
of Biosciences, University of Birmingham, West Midlands B15 2TT, U.K
| | | | | | - Rachel A. Segalman
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
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47
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Yasani BR, Martinelli E, Galli G, Glisenti A, Mieszkin S, Callow ME, Callow JA. A comparison between different fouling-release elastomer coatings containing surface-active polymers. BIOFOULING 2014; 30:387-399. [PMID: 24579757 DOI: 10.1080/08927014.2013.878864] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Surface-active polymers derived from styrene monomers containing siloxane (S), fluoroalkyl (F) and/or ethoxylated (E) side chains were blended with an elastomer matrix, either poly(dimethyl siloxane) (PDMS) or poly(styrene-b-(ethylene-co-butylene)-b-styrene) (SEBS), and spray-coated on top of PDMS or SEBS preformed films. By contact angle and X-ray photoelectron spectroscopy measurements, it was found that the surface-active polymer preferentially populated the outermost layers of the coating, despite its low content in the blend. However, the self-segregation process and the response to the external environment strongly depended on both the chemistry of the polymer and the type of matrix used for the blend. Additionally, mechanical testing showed that the elastic modulus of SEBS-based coatings was one order of magnitude higher than that of the corresponding PDMS-based coatings. The coatings were subjected to laboratory bioassays with the marine alga Ulva linza. PDMS-based coatings had superior fouling-release properties compared to the SEBS-based coatings.
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Affiliation(s)
- B R Yasani
- a Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM , Università di Pisa , Pisa , Italy
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48
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Kalinova R, Mincheva R, Dubois P. Imparting Adhesion Property to Silicone Materials. ACTA ACUST UNITED AC 2014. [DOI: 10.7569/raa.2014.097302] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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49
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Yang Q, Mi B. Nanomaterials for membrane fouling control: accomplishments and challenges. Adv Chronic Kidney Dis 2013; 20:536-55. [PMID: 24206605 DOI: 10.1053/j.ackd.2013.08.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 08/21/2013] [Indexed: 12/13/2022]
Abstract
We report a review of recent research efforts on incorporating nanomaterials-including metal/metal oxide nanoparticles, carbon-based nanomaterials, and polymeric nanomaterials-into/onto membranes to improve membrane antifouling properties in biomedical or potentially medical-related applications. In general, nanomaterials can be incorporated into/onto a membrane by blending them into membrane fabricating materials or by attaching them to membrane surfaces via physical or chemical approaches. Overall, the fascinating, multifaceted properties (eg, high hydrophilicity, superparamagnetic properties, antibacterial properties, amenable functionality, strong hydration capability) of nanomaterials provide numerous novel strategies and unprecedented opportunities to fully mitigate membrane fouling. However, there are still challenges in achieving a broader adoption of nanomaterials in the membrane processes used for biomedical applications. Most of these challenges arise from the concerns over their long-term antifouling performance, hemocompatibility, and toxicity toward humans. Therefore, rigorous investigation is still needed before the adoption of some of these nanomaterials in biomedical applications, especially for those nanomaterials proposed to be used in the human body or in contact with living tissue/body fluids for a long period of time. Nevertheless, it is reasonable to predict that the service lifetime of membrane-based biomedical devices and implants will be prolonged significantly with the adoption of appropriate fouling control strategies.
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50
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Peng J, Su Y, Chen W, Zhao X, Jiang Z, Dong Y, Zhang Y, Liu J, Fan X. Antifouling Membranes Prepared by a Solvent-Free Approach via Bulk Polymerization of 2-Hydroxyethyl Methacrylate. Ind Eng Chem Res 2013. [DOI: 10.1021/ie401606a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jinming Peng
- Key Laboratory for Green Chemical Technology, School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yanlei Su
- Key Laboratory for Green Chemical Technology, School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Wenjuan Chen
- Key Laboratory for Green Chemical Technology, School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xueting Zhao
- Key Laboratory for Green Chemical Technology, School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology, School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yanan Dong
- Key Laboratory for Green Chemical Technology, School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yan Zhang
- Key Laboratory for Green Chemical Technology, School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jiazhen Liu
- Key Laboratory for Green Chemical Technology, School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xiaochen Fan
- Key Laboratory for Green Chemical Technology, School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| |
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