151
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Benda J, Stafslien S, Vanderwal L, Finlay JA, Clare AS, Webster DC. Surface modifying amphiphilic additives and their effect on the fouling-release performance of siloxane-polyurethane coatings. BIOFOULING 2021; 37:309-326. [PMID: 33761816 DOI: 10.1080/08927014.2021.1901891] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 03/04/2021] [Accepted: 03/06/2021] [Indexed: 06/12/2023]
Abstract
In this work, surface-modifying amphiphilic additives (SMAAs) were synthesized via hydrosilylation using various polymethylhydrosiloxanes (PMHS) and allyl-terminated polyethylene glycol monomethyl ethers (APEG) of varying molecular weights. The additives synthesized were incorporated into a hydrophobic, self-stratifying siloxane-polyurethane (SiPU) coating system to produce an amphiphilic surface. Contact angle experiments and atomic force microscopy (AFM), in a dry and hydrated state, were performed to assess changes in surface wettability and morphology. The antifouling and fouling-release (AF/FR) performances were evaluated by performing laboratory biological assays using the marine bacterium Cellulophaga lytica, the microalga Navicula incerta, the macroalga Ulva linza, the barnacle Amphibalanus amphitrite, and the marine mussel, Geukensia demissa. Several of the formulations showed improved AF/FR performance vs the base SiPU and performed better than some of the commercial standard marine coatings. Formulations containing SMAAs with a low grafting density of relatively high molecular weight PEG chains showed the best performance overall.
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Affiliation(s)
- Jackson Benda
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND, USA
| | - Shane Stafslien
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND, USA
| | - Lyndsi Vanderwal
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND, USA
| | - John A Finlay
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Anthony S Clare
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Dean C Webster
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND, USA
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152
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Deng Y, Song GL, Zheng D, Zhang Y. Fabrication and synergistic antibacterial and antifouling effect of an organic/inorganic hybrid coating embedded with nanocomposite Ag@TA-SiO particles. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.126085] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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153
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Shi X, Wang L, Yan N, Wang Z, Guo L, Steinhart M, Wang Y. Fast Evaporation Enabled Ultrathin Polymer Coatings on Nanoporous Substrates for Highly Permeable Membranes. Innovation (N Y) 2021; 2:100088. [PMID: 34557742 PMCID: PMC8454551 DOI: 10.1016/j.xinn.2021.100088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 01/31/2021] [Indexed: 11/18/2022] Open
Abstract
Thin polymer coatings covering on porous substrates are a common composite structure required in numerous applications, including membrane separation, and there is a strong need to push the coating thicknesses down to the nanometer scale to maximize the performances. However, producing such ultrathin polymer coatings in a facile and efficient way remains a big challenge. Here, uniform ultrathin polymer covering films (UPCFs) are realized by a facile and general approach based on rapid solvent evaporation. By fast evaporating dilute polymer solutions spread on the surface of porous substrates, we obtain ultrathin coatings (down to ∼30 nm) exclusively on the top surface of porous substrates, forming UPCFs with a block copolymer of polystyrene-block-poly(2-vinyl pyridine) at room temperature or a homopolymer of poly(vinyl alcohol) (PVA) at elevated temperatures. Upon selective swelling of the block copolymer and crosslinking of PVA, we obtain highly permeable membranes delivering ∼2–10 times higher permeance in ultrafiltration and pervaporation than state-of-the-art membranes with comparable selectivities. We have invented a very convenient but highly efficient process for the direct preparation of defective-free ultrathin coatings on porous substrates, which is extremely desired in different fields in addition to membrane separation. Fast solvent evaporation is developed to produce UPCFs on porous substrates Selective swelling to cavitate block copolymers to form interconnected mesopores UPCFs enable the preparation of highly permeable membranes
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Affiliation(s)
- Xiansong Shi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, P.R. China
| | - Lei Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, P.R. China
| | - Nina Yan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, P.R. China
| | - Zhaogen Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, P.R. China
| | - Leiming Guo
- Institut für Chemie neuer Materialien, Universität Osnabrück, Barbarastr. 7, 49069 Osnabrück, Germany
| | - Martin Steinhart
- Institut für Chemie neuer Materialien, Universität Osnabrück, Barbarastr. 7, 49069 Osnabrück, Germany
- Corresponding author
| | - Yong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, P.R. China
- Corresponding author
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154
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Kunihiro K, Heyte S, Paul S, Roisnel T, Carpentier JF, Kirillov E. Ruthenium-Catalyzed Coupling Reactions of CO 2 with C 2 H 4 and Hydrosilanes towards Silyl Esters. Chemistry 2021; 27:3997-4003. [PMID: 33378130 DOI: 10.1002/chem.202005083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/21/2020] [Indexed: 11/10/2022]
Abstract
A series of in situ-prepared catalytic systems incorporating RuII precursors and bidentate phosphine ligands has been probed in the reductive carboxylation of ethylene in the presence of triethylsilane as reductant. The catalytic production of propionate and acrylate silyl esters was evidenced by high-throughput screening (HTS) and implemented in batch reactor techniques. The most promising catalyst systems identified were made of Ru(H)(Cl)(CO)(PPh3 )3 and 1,4-bis(dicyclohexylphosphino)butane (DCPB) or 1,1'-ferrocene-diyl-bis(cyclohexylphosphine) (DCPF). A marked influence of water on the acrylate/propionate selectivity was noted. Turnover numbers [mol mol(Ru)-1 ] up to 16 for acrylate and up to 68 for propionate were reached under relatively mild conditions (20 bar, 100 °C, 0.5 mol % Ru, 40 mol % H2 O vs. HSiEt3 ). Possible mechanisms are discussed.
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Affiliation(s)
- Kana Kunihiro
- CNRS, Institut des Sciences Chimiques de Rennes (ISCR), UMR 6226, Univ. Rennes, 35042, Rennes Cedex, France
| | - Svetlana Heyte
- CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, Univ. Lille, F-59000, Lille, France
| | - Sébastien Paul
- CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, Univ. Lille, F-59000, Lille, France
| | - Thierry Roisnel
- CNRS, Institut des Sciences Chimiques de Rennes (ISCR), UMR 6226, Univ. Rennes, 35042, Rennes Cedex, France
| | - Jean-François Carpentier
- CNRS, Institut des Sciences Chimiques de Rennes (ISCR), UMR 6226, Univ. Rennes, 35042, Rennes Cedex, France
| | - Evgueni Kirillov
- CNRS, Institut des Sciences Chimiques de Rennes (ISCR), UMR 6226, Univ. Rennes, 35042, Rennes Cedex, France
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155
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Wanka R, Koschitzki F, Puzovic V, Pahl T, Manderfeld E, Hunsucker KZ, Swain GW, Rosenhahn A. Synthesis and Characterization of Dendritic and Linear Glycol Methacrylates and Their Performance as Marine Antifouling Coatings. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6659-6669. [PMID: 33497184 DOI: 10.1021/acsami.0c21212] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Dendritic polyglycerol (PG) was covalently coupled to 2-hydroxyethyl methacrylate (HEMA) by an anionically catalyzed ring-opening polymerization generating a dendritic PG-HEMA with four PG repetition units (PG4MA). Coatings of the methacrylate monomer were prepared by grafting-through and compared against commercially available hydrophilic monomers of HEMA, poly(ethylene) glycol methacrylate (PEGMA), and poly(propylene) glycol methacrylate (PPGMA). The obtained coatings were characterized by modern surface analytical techniques, including water contact angle goniometry (sessile and captive bubble), attenuated total internal reflection Fourier transform infrared spectroscopy, and atomic force microscopy. The antifouling (AF) and fouling-release (FR) properties of the coatings were tested against the model organisms Cobetia marina and Navicula perminuta in laboratory-scale dynamic accumulation assays as well as in a dynamic short-term field exposure (DSFE) in the marine environment. In addition, the hydration of the coatings and their susceptibility toward silt uptake were evaluated, revealing a strong correlation between water uptake, silt incorporation, and field assay performance. While all glycol derivatives showed good resistance in laboratory settlement experiments, PPGMA turned out to be less susceptible to silt incorporation and outperformed PEGMA and PG4MA in the DSFE assay.
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Affiliation(s)
- Robin Wanka
- Analytical Chemistry - Biointerfaces, Ruhr-University Bochum, 44780 Bochum, Germany
- Center for Protein Diagnostics (ProDi), Ruhr-University Bochum, 44780 Bochum, Germany
| | - Florian Koschitzki
- Analytical Chemistry - Biointerfaces, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Vuk Puzovic
- Analytical Chemistry - Biointerfaces, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Thorben Pahl
- Analytical Chemistry - Biointerfaces, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Emily Manderfeld
- Analytical Chemistry - Biointerfaces, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Kelli Z Hunsucker
- Center for Corrosion & Biofouling, Florida Institute of Technology, Melbourne, Florida 32901, United States
| | - Geoffrey W Swain
- Center for Corrosion & Biofouling, Florida Institute of Technology, Melbourne, Florida 32901, United States
| | - Axel Rosenhahn
- Analytical Chemistry - Biointerfaces, Ruhr-University Bochum, 44780 Bochum, Germany
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156
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Wang SY, Fang LF, Takagi R, Matsuyama H. Development of membranes with well-dispersed polyampholytic copolymer via a composite coagulation process. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118848] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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157
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Mu L, Rutkowski S, Si T, Gai M, Wang J, Tverdokhlebov SI, Frueh J. A reduction of settlement probability of Chlorella vulgaris on photo-chemically active ceramics with hierarchical nano-structures. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125898] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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158
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Vale AC, Pereira PR, Alves NM. Polymeric biomaterials inspired by marine mussel adhesive proteins. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2020.104802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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159
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Atthi N, Dielen M, Sripumkhai W, Pattamang P, Meananeatra R, Saengdee P, Thongsook O, Ranron N, Pankong K, Uahchinkul W, Supadech J, Klunngien N, Jeamsaksiri W, Veldhuizen P, ter Meulen JM. Fabrication of High Aspect Ratio Micro-Structures with Superhydrophobic and Oleophobic Properties by Using Large-Area Roll-to-Plate Nanoimprint Lithography. NANOMATERIALS 2021; 11:nano11020339. [PMID: 33572813 PMCID: PMC7912431 DOI: 10.3390/nano11020339] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/22/2021] [Accepted: 01/23/2021] [Indexed: 12/17/2022]
Abstract
Bio-inspired surfaces with superamphiphobic properties are well known as effective candidates for antifouling technology. However, the limitation of large-area mastering, patterning and pattern collapsing upon physical contact are the bottleneck for practical utilization in marine and medical applications. In this study, a roll-to-plate nanoimprint lithography (R2P NIL) process using Morphotonics’ automated Portis NIL600 tool was used to replicate high aspect ratio (5.0) micro-structures via reusable intermediate flexible stamps that were fabricated from silicon master molds. Two types of Morphotonics’ in-house UV-curable resins were used to replicate a micro-pillar (PIL) and circular rings with eight stripe supporters (C-RESS) micro-structure onto polycarbonate (PC) and polyethylene terephthalate (PET) foil substrates. The pattern quality and surface wettability was compared to a conventional polydimethylsiloxane (PDMS) soft lithography process. It was found that the heights of the R2P NIL replicated PIL and C-RESS patterns deviated less than 6% and 5% from the pattern design, respectively. Moreover, the surface wettability of the imprinted PIL and C-RESS patterns was found to be superhydro- and oleophobic and hydro- and oleophobic, respectively, with good robustness for the C-RESS micro-structure. Therefore, the R2P NIL process is expected to be a promising method to fabricate robust C-RESS micro-structures for large-scale anti-biofouling application.
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Affiliation(s)
- Nithi Atthi
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
- Correspondence:
| | - Marc Dielen
- Morphotonics B.V., De Run 4281, 5503 LM Veldhoven, The Netherlands; (M.D.); (P.V.); (J.M.t.M.)
| | - Witsaroot Sripumkhai
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Pattaraluck Pattamang
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Rattanawan Meananeatra
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Pawasuth Saengdee
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Oraphan Thongsook
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Norabadee Ranron
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Krynnaras Pankong
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Warinrampai Uahchinkul
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Jakrapong Supadech
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Nipapan Klunngien
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Wutthinan Jeamsaksiri
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Pim Veldhuizen
- Morphotonics B.V., De Run 4281, 5503 LM Veldhoven, The Netherlands; (M.D.); (P.V.); (J.M.t.M.)
| | - Jan Matthijs ter Meulen
- Morphotonics B.V., De Run 4281, 5503 LM Veldhoven, The Netherlands; (M.D.); (P.V.); (J.M.t.M.)
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160
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Lavielle N, Asker D, Hatton BD. Lubrication dynamics of swollen silicones to limit long term fouling and microbial biofilms. SOFT MATTER 2021; 17:936-946. [PMID: 33284301 DOI: 10.1039/d0sm01039a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Bacterial contamination and biofilm formation on medical devices remain a costly and serious healthcare problem. Silicone (polydimethylsiloxane, PDMS) elastomers are common biomaterials but are susceptible to bacterial surface contamination and biofilm growth. 'Self-lubricated' PDMS elastomers (iPDMS) have the potential to greatly reduce rates of cell attachment, biofilm formation and infection. Cross-linked PDMS elastomers immersed in PDMS oil swell to an equilibrium concentration to form a swollen network, and then form a surface liquid layer through syneresis. Herein we have measured the swelling and syneresis kinetics as a function of time, viscosity (1.5 to 10 cSt), and cross-linking density to optimize the surface lubricant layer formation, and resistance to biofouling. The lubricant layer thickness was measured in situ (optical profilometry and AFM) for flat and micro-textured surfaces, as a function of time and swelling ratio, to be in a range from 0.1 to 1 μm, and continuously increases with time. We show this continuous generation is likely due to a gradual, dynamic re-structuring of the elastomer network. Long term antifouling properties of (10 cSt) iPDMS were tested for Pseudomonas aeruginosa growth in a flow culture bioreactor, and after 30 d showed a 103 to 104 reduction of bacterial cell density for iPDMS compared to conventional PDMS elastomers. This long term performance and non-specific activity makes them highly suitable for biomedical devices, such as urinary catheters.
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Affiliation(s)
- Nicolas Lavielle
- Department of Materials Science and Engineering, University of Toronto, Toronto, ON M5S, Canada.
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161
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Bacillus subtilis extracellular polymeric substances conditioning layers inhibit Escherichia coli adhesion to silicon surfaces: A potential candidate for interfacial antifouling additives. Biointerphases 2021; 16:011003. [PMID: 33706527 DOI: 10.1116/6.0000737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Biofouling on material surfaces is a ubiquitous problem in a variety of fields. In aqueous environments, the process of biofouling initiates with the formation of a layer of macromolecules called the conditioning layer on the solid-liquid interface, followed by the adhesion and colonization of planktonic bacteria and the subsequent biofilm development and maturation. In this study, the extracellular polymeric substances (EPS) secreted by Bacillus subtilis were collected and used to prepare conditioning layers on inert surfaces. The morphologies and antifouling performances of the EPS conditioning layers were investigated. It was found that the initial adhesion of Escherichia coli was inhibited on the surfaces precoated with EPS conditioning layers. To further explore the underlying antifouling mechanisms of the EPS conditioning layers, the respective roles of two constituents of B. subtilis EPS (γ-polyglutamic acid and surfactin) were investigated. This study has provided the possibility of developing a novel interfacial antifouling additive with the advantages of easy preparation, nontoxicity, and environmental friendliness.
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162
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Study on high antibacterial RGO/Bi2WO6 microspheres combined with PEVE coating for marine sterilization under visible light. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04400-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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163
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Vignesh V, Nguyen THH, Vanderwal L, Stafslien S, Brennan A. Tough amphiphilic antifouling coating based on acrylamide, fluoromethacrylate and non-isocyanate urethane dimethacrylate crosslinker. BIOFOULING 2021; 37:36-48. [PMID: 33487051 DOI: 10.1080/08927014.2020.1870110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
This study is focused on the development of tougher gels using combinations of acrylamide, fluoromethacrylate and a non-isocyanate urethane dimethacrylate (NIUDMA) crosslinker. The NIUDMA was tailored with 2, 3-epoxypropoxy propyl-polydimethylsiloxane segments E9 (MW = 0.36 kg mol-1), E11 (MW = 0.5-0.6 kg mol-1) and E12 (MW = 1-1.4 kg mol-1). A 3 level Taguchi design was used to evaluate the role of each component of the ternary copolymer gel on the elastic modulus and toughness. The toughness ranged from 2.5-7 MJ m-3 whereas the modulus ranged from 27-70 MPa. The formulations with the highest toughness and modulus were screened for their antifouling potential in biological assays against the microalga Navicula incerta and the bacterium Cellulophaga lytica. The E9 gels showed the best performance, achieving a 73% reduction in N. incerta cells and a 92% reduction in C. lytica biofilm remaining after water jetting treatments, when compared with the commercial Intersleek product IS700.
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Affiliation(s)
- Vishal Vignesh
- Department of Materials Science and Engineering, University of Florida, Gainesville, USA
| | - Thi Hoang Ha Nguyen
- Department of Materials Science and Engineering, University of Florida, Gainesville, USA
| | - Lyndsi Vanderwal
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, USA
| | - Shane Stafslien
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, USA
| | - Anthony Brennan
- Department of Materials Science and Engineering, University of Florida, Gainesville, USA
- Margaret A. Ross Professor of Materials Science & Engineering, Affiliate of Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
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164
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Liu M, Li S, Wang H, Jiang R, Zhou X. Research progress of environmentally friendly marine antifouling coatings. Polym Chem 2021. [DOI: 10.1039/d1py00512j] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The antifouling mechanisms and research progress in the past three years of environmentally friendly marine antifouling coatings are introduced in this work.
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Affiliation(s)
- Mengyue Liu
- School of Chemistry and Life Sciences
- Suzhou University of Science andTechnology
- Suzhou 215009
- China
| | - Shaonan Li
- School of Chemistry and Life Sciences
- Suzhou University of Science andTechnology
- Suzhou 215009
- China
| | - Hao Wang
- School of Chemistry and Life Sciences
- Suzhou University of Science andTechnology
- Suzhou 215009
- China
| | - Rijia Jiang
- School of Chemistry and Life Sciences
- Suzhou University of Science andTechnology
- Suzhou 215009
- China
| | - Xing Zhou
- School of Chemistry and Life Sciences
- Suzhou University of Science andTechnology
- Suzhou 215009
- China
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165
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Tian L, Yin Y, Bing W, Jin E. Antifouling Technology Trends in Marine Environmental Protection. JOURNAL OF BIONIC ENGINEERING 2021; 18:239-263. [PMID: 33815489 PMCID: PMC7997792 DOI: 10.1007/s42235-021-0017-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Marine fouling is a worldwide problem, which is harmful to the global marine ecological environment and economic benefits. The traditional antifouling strategy usually uses toxic antifouling agents, which gradually exposes a serious environmental problem. Therefore, green, long-term, broad-spectrum and eco-friendly antifouling technologies have been the main target of engineers and researchers. In recent years, many eco-friendly antifouling technologies with broad application prospects have been developed based on the low toxicity and non-toxicity antifouling agents and materials. In this review, contemporary eco-friendly antifouling technologies and materials are summarized into bionic antifouling and non-bionic antifouling strategies (2000-2020). Non-bionic antifouling technologies mainly include protein resistant polymers, antifoulant releasing coatings, foul release coatings, conductive antifouling coatings and photodynamic antifouling technology. Bionic antifouling technologies mainly include the simulated shark skin, whale skin, dolphin skin, coral tentacles, lotus leaves and other biology structures. Brief future research directions and challenges are also discussed in the end, and we expect that this review would boost the development of marine antifouling technologies.
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Affiliation(s)
- Limei Tian
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022 China
- Weihai Institute for Bionics-Jilin University, Weihai, 264207 China
| | - Yue Yin
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022 China
| | - Wei Bing
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022 China
- School of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012 China
| | - E. Jin
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022 China
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166
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Airoldi L, Beck MW, Firth LB, Bugnot AB, Steinberg PD, Dafforn KA. Emerging Solutions to Return Nature to the Urban Ocean. ANNUAL REVIEW OF MARINE SCIENCE 2021; 13:445-477. [PMID: 32867567 DOI: 10.1146/annurev-marine-032020-020015] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Urban and periurban ocean developments impact 1.5% of the global exclusive economic zones, and the demand for ocean space and resources is increasing. As we strive for a more sustainable future, it is imperative that we better design, manage, and conserve urban ocean spaces for both humans and nature. We identify three key objectives for more sustainable urban oceans: reduction of urban pressures, protection and restoration of ocean ecosystems, and support of critical ecosystem services. We describe an array of emerging evidence-based approaches, including greening grayinfrastructure, restoring habitats, and developing biotechnologies. We then explore new economic instruments and incentives for supporting these new approaches and evaluate their feasibility in delivering these objectives. Several of these tools have the potential to help bring nature back to the urban ocean while also addressing some of the critical needs of urban societies, such as climate adaptation, seafood production, clean water, and recreation, providing both human and environmental benefits in some of our most impacted ocean spaces.
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Affiliation(s)
- Laura Airoldi
- Department of Biology, Chioggia Hydrobiological Station Umberto D'Ancona, University of Padova, 30015 Chioggia, Italy;
- Department of Biological, Geological, and Environmental Sciences and Interdepartmental Research Center for Environmental Sciences, University of Bologna, UO CoNISMa, 48123 Ravenna, Italy
| | - Michael W Beck
- Institute of Marine Sciences, University of California, Santa Cruz, California 95060, USA;
| | - Louise B Firth
- School of Biological and Marine Sciences, University of Plymouth, Plymouth PL4 8AA, United Kingdom;
| | - Ana B Bugnot
- School of Life and Environmental Sciences, University of Sydney, Sydney, New South Wales 2006, Australia;
- Sydney Institute of Marine Science, Mosman, New South Wales 2088, Australia
| | - Peter D Steinberg
- Sydney Institute of Marine Science, Mosman, New South Wales 2088, Australia
- Centre for Marine Science and Innovation and School of Biological, Earth, and Environmental Science, University of New South Wales, Sydney, New South Wales 2052, Australia;
- Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551
| | - Katherine A Dafforn
- Department of Earth and Environmental Sciences, Macquarie University, North Ryde, New South Wales 2109, Australia;
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167
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Idumah CI, Obele CM, Emmanuel EO, Hassan A. Recently Emerging Nanotechnological Advancements in Polymer Nanocomposite Coatings for Anti-corrosion, Anti-fouling and Self-healing. SURFACES AND INTERFACES 2020; 21:100734. [PMID: 34957345 PMCID: PMC7531442 DOI: 10.1016/j.surfin.2020.100734] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 09/24/2020] [Accepted: 09/28/2020] [Indexed: 05/21/2023]
Abstract
Recent nanotechnological advancements have enabled novel innovations in protective polymer nanocomposites (PNC) coatings for anti-corrosion, anti-fouling and self-healing services on material surfaces. Nanotechnology encompases research, manufacturing, and application of nanoparticulate architectures, tubular structures, sheets or plates exhibiting sizes below 100 nanometers (nm) in at least a single dimension. Inclusions of nanoparticles into organic entities have demonstrated enhanced properties essential for attainiment of aesthetics, anti-corrosion, thermal stability for high-temperature performances, mechanical strength essential for resisting coating deterioration in harsh environments, nano-architectural cross-linking capable of hindering penetration of corrosive, and biofouling entities. Unlike previously published literature, this paper elucidates very recently emerging important advancements in novel techniques utilized in developing PNC coatings for applications in aerospace, packaging, automotive, biomedicine, maritime, and oil and gas industries for attaining superior anti-fouling, anti-corrosion, and self-healing behaviors on critical material surfaces. Emerging market structures and novel applications are also presented.
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Affiliation(s)
- Christopher Igwe Idumah
- Nnamdi Azikiwe University, Faculty of Engineering, Department of Polymer and Textile Engineering, Awka, Anambra State, Nigeria
| | - Chizoba May Obele
- Nnamdi Azikiwe University, Faculty of Engineering, Department of Polymer and Textile Engineering, Awka, Anambra State, Nigeria
| | - Ezeani O Emmanuel
- Nnamdi Azikiwe University, Faculty of Engineering, Department of Polymer and Textile Engineering, Awka, Anambra State, Nigeria
| | - Azman Hassan
- Faculty of Chemical and Energy Engineering, Enhanced Polymer Research Group, Department of Polymer Engineering, Universiti Teknologi Malaysia
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168
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Wanka R, Koc J, Clarke J, Hunsucker KZ, Swain GW, Aldred N, Finlay JA, Clare AS, Rosenhahn A. Sol-Gel-Based Hybrid Materials as Antifouling and Fouling-Release Coatings for Marine Applications. ACS APPLIED MATERIALS & INTERFACES 2020; 12:53286-53296. [PMID: 33180471 DOI: 10.1021/acsami.0c15288] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hybrid materials (HMs) offer unique properties as they combine inorganic and organic components into a single material. Here, we developed HM coatings for marine antifouling applications using sol-gel chemistry and naturally occurring polysaccharides. The coatings were characterized by spectroscopic ellipsometry, contact angle goniometry, AFM, and ATR-FTIR, and their stability was tested in saline media. Marine antifouling and fouling-release properties were tested in laboratory assays against the settlement of larvae of the barnacle Balanus improvisus and against the settlement and removal of the diatom Navicula incerta. Furthermore, laboratory data were confirmed in short-term dynamic field assays in Florida, USA. All hybrid coatings revealed a superior performance in the assays compared to a hydrophobic reference. Within the hybrids, those with the highest degree of hydrophilicity and negative net charge across the surface performed best. Alginate and heparin showed good performance, making these hybrid materials promising building blocks for fouling-resistant coatings.
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Affiliation(s)
- Robin Wanka
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, Bochum 44780, Germany
| | - Julian Koc
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, Bochum 44780, Germany
| | - Jessica Clarke
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Kelli Z Hunsucker
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida 32901, United States
| | - Geoffrey W Swain
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida 32901, United States
| | - Nick Aldred
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, United Kingdom
| | - John A Finlay
- 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
| | - Axel Rosenhahn
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, Bochum 44780, Germany
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169
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Koc J, Schardt L, Nolte K, Beyer C, Eckhard T, Schwiderowski P, Clarke JL, Finlay JA, Clare AS, Muhler M, Laschewsky A, Rosenhahn A. Effect of Dipole Orientation in Mixed, Charge-Equilibrated Self-assembled Monolayers on Protein Adsorption and Marine Biofouling. ACS APPLIED MATERIALS & INTERFACES 2020; 12:50953-50961. [PMID: 33112127 DOI: 10.1021/acsami.0c11580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
While zwitterionic interfaces are known for their excellent low-fouling properties, the underlying molecular principles are still under debate. In particular, the role of the zwitterion orientation at the interface has been discussed recently. For elucidation of the effect of this parameter, self-assembled monolayers (SAMs) on gold were prepared from stoichiometric mixtures of oppositely charged alkyl thiols bearing either a quaternary ammonium or a carboxylate moiety. The alkyl chain length of the cationic component (11-mercaptoundecyl)-N,N,N-trimethylammonium, which controls the distance of the positively charged end group from the substrate's surface, was kept constant. In contrast, the anionic component and, correspondingly, the distance of the negatively charged carboxylate groups from the surface was varied by changing the alkyl chain length in the thiol molecules from 7 (8-mercaptooctanoic acid) to 11 (12-mercaptododecanoic acid) to 15 (16-mercaptohexadecanoic acid). In this way, the charge neutrality of the coating was maintained, but the charged groups exposed at the interface to water were varied, and thus, the orientation of the dipoles in the SAMs was altered. In model biofouling studies, protein adsorption, diatom accumulation, and the settlement of zoospores were all affected by the altered charge distribution. This demonstrates the importance of the dipole orientation in mixed-charged SAMs for their inertness to nonspecific protein adsorption and the accumulation of marine organisms. Overall, biofouling was lowest when both the anionic and the cationic groups were placed at the same distance from the substrate's surface.
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Affiliation(s)
- Julian Koc
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum 44801, Germany
| | - Lisa Schardt
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum 44801, Germany
| | - Kim Nolte
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum 44801, Germany
| | - Cindy Beyer
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum 44801, Germany
| | - Till Eckhard
- Laboratory of Industrial Chemistry, Ruhr University Bochum, Bochum 44801, Germany
| | | | - Jessica L Clarke
- 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
| | - Anthony S Clare
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Martin Muhler
- Laboratory of Industrial Chemistry, Ruhr University Bochum, Bochum 44801, Germany
| | - Andre Laschewsky
- Institut für Chemie, Universität Potsdam, Potsdam 14469, Germany
- Fraunhofer Institute of Applied Polymer Research IAP, Potsdam 14476, Germany
| | - Axel Rosenhahn
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum 44801, Germany
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170
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Guazzelli E, Perondi F, Criscitiello F, Pretti C, Oliva M, Casu V, Maniero F, Gazzera L, Galli G, Martinelli E. New amphiphilic copolymers for PDMS-based nanocomposite films with long-term marine antifouling performance. J Mater Chem B 2020; 8:9764-9776. [PMID: 33021610 DOI: 10.1039/d0tb01905d] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Amphiphilic methacrylate copolymers (Si-co-EF) containing polysiloxane (Si) and mixed poly(oxyethylene)-perfluorohexyl (EF) side chains were synthesized with different compositions and used together with polysiloxane-functionalized nanoparticles as additives of condensation cured nanocomposite poly(siloxane) films. The mechanical properties of the nanocomposite films were consistent with the elastomeric behavior of the poly(siloxane) matrix without significant detriment from either the copolymer or the nanoparticles. Films were found to be markedly hydrophobic and liphophobic, with both properties being maximized at an intermediate content of EF units. The high enrichment in fluorine at the film surface was proven by angle-resolved X-ray photoelectron spectroscopy (AR-XPS). Long-term marine antifouling performance was evaluated in field immersion trials of test panels for up to 10 months of immersion. Both nanoparticles and amphiphilic copolymer were found to be highly effective in reducing the colonization of foulants, especially hard macrofoulants, when compared with control panels. Lowest percentage of surface coverage was 20% after 10 months of immersion (films with 4 wt% copolymer and 0.5 wt% nanoparticles), which was further decreased to less than 10% after exposure to a water jet for 10 s. The enhanced antifouling properties of coatings containing both nanoparticles and copolymer were confirmed by laboratory assays against the polychaete Ficopomatus enigmaticus and the diatom Navicula salinicola.
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Affiliation(s)
- Elisa Guazzelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, 56124 Pisa, Italy.
| | - Federico Perondi
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, 56124 Pisa, Italy.
| | | | - Carlo Pretti
- Dipartimento di Scienze Veterinarie, Università di Pisa, 56126 Pisa, Italy and Consorzio Interuniversitario di Biologia Marina e Ecologia Applicata "G. Bacci", 57128 Livorno, Italy
| | - Matteo Oliva
- Consorzio Interuniversitario di Biologia Marina e Ecologia Applicata "G. Bacci", 57128 Livorno, Italy
| | - Valentina Casu
- Dipartimento di Scienze Veterinarie, Università di Pisa, 56126 Pisa, Italy
| | | | | | - Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, 56124 Pisa, Italy.
| | - Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, 56124 Pisa, Italy.
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171
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A Nanoengineered Stainless Steel Surface to Combat Bacterial Attachment and Biofilm Formation. Foods 2020; 9:foods9111518. [PMID: 33105653 PMCID: PMC7690382 DOI: 10.3390/foods9111518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/18/2020] [Accepted: 10/20/2020] [Indexed: 11/16/2022] Open
Abstract
Nanopatterning and anti-biofilm characterization of self-cleanable surfaces on stainless steel substrates were demonstrated in the current study. Electrochemical etching in diluted aqua regia solution consisting of 3.6% hydrogen chloride and 1.2% nitric acid was conducted at 10 V for 5, 10, and 15 min to fabricate nanoporous structures on the stainless steel. Variations in the etching rates and surface morphologic characteristics were caused by differences in treatment durations; the specimens treated at 10 V for 10 min showed that the nanoscale pores are needed to enhance the self-cleanability. Under static and realistic flow environments, the populations of Escherichia coli O157:H7 and Salmonella Typhimurium on the developed features were significantly reduced by 2.1–3.0 log colony-forming unit (CFU)/cm2 as compared to bare stainless steel (p < 0.05). The successful fabrication of electrochemically etched stainless steel surfaces with Teflon coating could be useful in the food industry and biomedical fields to hinder biofilm formation in order to improve food safety.
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172
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Jeong Y, Kang SM. Catechol‐conjugated Dextran for Marine Antifouling Applications: The Adverse Effects of High Catechol Content. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.12111] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yeonwoo Jeong
- Department of Chemistry Chungbuk National University Cheongju 28644 Korea
| | - Sung Min Kang
- Department of Chemistry Chungbuk National University Cheongju 28644 Korea
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173
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Vilas-Boas C, Carvalhal F, Pereira B, Carvalho S, Sousa E, Pinto MMM, Calhorda MJ, Vasconcelos V, Almeida JR, Silva ER, Correia-da-Silva M. One Step Forward towards the Development of Eco-Friendly Antifouling Coatings: Immobilization of a Sulfated Marine-Inspired Compound. Mar Drugs 2020; 18:md18100489. [PMID: 32992876 PMCID: PMC7600153 DOI: 10.3390/md18100489] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/19/2020] [Accepted: 09/23/2020] [Indexed: 12/30/2022] Open
Abstract
Marine biofouling represents a global economic and ecological challenge and few eco-friendly antifouling agents are available. The aim of this work was to establish the proof of concept that a recently synthesized nature-inspired compound (gallic acid persulfate, GAP) can act as an eco-friendly and effective antifoulant when immobilized in coatings through a non-release strategy, promoting a long-lasting antifouling effect. The synthesis of GAP was optimized to provide quantitative yields. GAP water solubility was assessed, showing values higher than 1000 mg/mL. GAP was found to be stable in sterilized natural seawater with a half-life (DT50) of 7 months. GAP was immobilized into several commercial coatings, exhibiting high compatibility with different polymeric matrices. Leaching assays of polydimethylsiloxane and polyurethane-based marine coatings containing GAP confirmed that the chemical immobilization of GAP was successful, since releases up to fivefold lower than the conventional releasing systems of polyurethane-based marine coatings were observed. Furthermore, coatings containing immobilized GAP exhibited the most auspicious anti-settlement effect against Mytilus galloprovincialis larvae for the maximum exposure period (40 h) in laboratory trials. Overall, GAP promises to be an agent capable of improving the antifouling activity of several commercial marine coatings with desirable environmental properties.
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Affiliation(s)
- Cátia Vilas-Boas
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (C.V.-B.); (F.C.); (E.S.); (M.M.M.P.)
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
| | - Francisca Carvalhal
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (C.V.-B.); (F.C.); (E.S.); (M.M.M.P.)
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
| | - Beatriz Pereira
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016 Portugal; (B.P.); (M.J.C.)
| | - Sílvia Carvalho
- CQB—Centro de Química e Bioquímica, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016 Lisboa, Portugal;
| | - Emília Sousa
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (C.V.-B.); (F.C.); (E.S.); (M.M.M.P.)
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
| | - Madalena M. M. Pinto
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (C.V.-B.); (F.C.); (E.S.); (M.M.M.P.)
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
| | - Maria José Calhorda
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016 Portugal; (B.P.); (M.J.C.)
| | - Vitor Vasconcelos
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007 Porto, Portugal
| | - Joana R. Almeida
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
| | - Elisabete R. Silva
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016 Portugal; (B.P.); (M.J.C.)
- Correspondence: (E.R.S.); (M.C.-d.-S.)
| | - Marta Correia-da-Silva
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (C.V.-B.); (F.C.); (E.S.); (M.M.M.P.)
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (V.V.); (J.R.A.)
- Correspondence: (E.R.S.); (M.C.-d.-S.)
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174
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Liu C, Yan B, Duan J, Hou B. Biofilm inhibition effect of an ivermectin/silyl acrylate copolymer coating and the colonization dynamics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 736:139599. [PMID: 32479963 DOI: 10.1016/j.scitotenv.2020.139599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/28/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
Ivermectin is now being used as a substitute for toxic organic biocide in marine antifouling coatings due to its environmentally friendly nature and the efficacy against parasites. However, the release performance of ivermectin from the hydrolyzed acrylic-based resin into the seawater is not clear. Moreover, the efficiency and mechanism of ivermectin in preventing biofilm or slime formation have not been fully investigated. In this study, a coating was developed by mixing ivermectin with an acrylic-based resin, silyl acrylate copolymer, and a 45-day in situ antifouling test was conducted in the Yellow Sea. Direct observation and confocal microscope investigation indicated that the polymer coating with ivermectin was effective against biofilm formation. High-throughput sequencing analysis showed that ivermectin can selectively inhibit the adhesion of microorganisms. Abundances of Gammaproteobacteria and Alphaproteobacteria decreased significantly with the increased concentration of ivermectin. As for the eukaryote community, species of Stolidobranchia and unidentified_Bacillariophyceae were proved to be sensitive to ivermectin. Therefore, the ivermectin/silyl acrylate copolymer coating is a promising substitute for marine antifouling material.
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Affiliation(s)
- Chao Liu
- CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China
| | - Binghua Yan
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Jizhou Duan
- CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China.
| | - Baorong Hou
- CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, PR China
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175
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Kimkes TEP, Heinemann M. How bacteria recognise and respond to surface contact. FEMS Microbiol Rev 2020; 44:106-122. [PMID: 31769807 PMCID: PMC7053574 DOI: 10.1093/femsre/fuz029] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 11/23/2019] [Indexed: 12/27/2022] Open
Abstract
Bacterial biofilms can cause medical problems and issues in technical systems. While a large body of knowledge exists on the phenotypes of planktonic and of sessile cells in mature biofilms, our understanding of what happens when bacteria change from the planktonic to the sessile state is still very incomplete. Fundamental questions are unanswered: for instance, how do bacteria sense that they are in contact with a surface, and what are the very initial cellular responses to surface contact. Here, we review the current knowledge on the signals that bacteria could perceive once they attach to a surface, the signal transduction systems that could be involved in sensing the surface contact and the cellular responses that are triggered as a consequence to surface contact ultimately leading to biofilm formation. Finally, as the main obstacle in investigating the initial responses to surface contact has been the difficulty to experimentally study the dynamic response of single cells upon surface attachment, we also review recent experimental approaches that could be employed to study bacterial surface sensing, which ultimately could lead to an improved understanding of how biofilm formation could be prevented.
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Affiliation(s)
- Tom E P Kimkes
- Molecular Systems Biology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 4, 9747 AG Groningen, the Netherlands
| | - Matthias Heinemann
- Molecular Systems Biology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 4, 9747 AG Groningen, the Netherlands
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176
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Xu P, Yu Y, Li T, Chen H, Wang Q, Wang M, Wan M, Mao C. Near-infrared-driven fluorescent nanomotors for detection of circulating tumor cells in whole blood. Anal Chim Acta 2020; 1129:60-68. [DOI: 10.1016/j.aca.2020.06.061] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 06/05/2020] [Accepted: 06/25/2020] [Indexed: 12/18/2022]
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177
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Kamensky KM, Hellum AM, Mukherjee R, Naik A, Moisander PH. Underwater shear-based grooming of marine biofouling using a non-contact Bernoulli pad device. BIOFOULING 2020; 36:951-964. [PMID: 33103474 DOI: 10.1080/08927014.2020.1834539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 10/02/2020] [Accepted: 10/05/2020] [Indexed: 06/11/2023]
Abstract
The biofouling removal ability of a shear-based device was tested on two submerged surface types, Garolite G-10 and Intersleek 1100SR. Each surface was groomed at four frequencies along with a control group. The seven-week grooming study was conducted in Narragansett Bay, Rhode Island. The Bernoulli pad device uses confined radial outflow to generate both surface-normal forces to grip the submerged surface and shear stress to groom the surface without contact. An image-processing algorithm was developed and used to assess the effectiveness of the various grooming protocols, along with direct measurements of chlorophyll a per surface area. The image-processing data showed that the grooming resulted in ∼50% cleanliness on the Garolite at the end of the study whereas the Intersleek was continuously restored to nearly its initial clean state. Chlorophyll a data supported these overall conclusions. These results indicate that surface cleanliness can be maintained effectively on Intersleek using frequent shear-based grooming.
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Affiliation(s)
- Kristina M Kamensky
- Department of Mechanical Engineering, Michigan State University, East Lansing, MI, USA
| | | | - Ranjan Mukherjee
- Department of Mechanical Engineering, Michigan State University, East Lansing, MI, USA
| | - Abhishek Naik
- Department of Biology, University of Massachusetts Dartmouth, North Dartmouth, MA, USA
| | - Pia H Moisander
- Department of Biology, University of Massachusetts Dartmouth, North Dartmouth, MA, USA
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178
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Zhang S, Zhang R, Wang Y, Onck PR, den Toonder JMJ. Controlled Multidirectional Particle Transportation by Magnetic Artificial Cilia. ACS NANO 2020; 14:10313-10323. [PMID: 32806065 PMCID: PMC7450663 DOI: 10.1021/acsnano.0c03801] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/31/2020] [Indexed: 05/27/2023]
Abstract
Manipulation of particles in a controllable manner is highly desirable in many applications. Inspired by biological cilia, this article experimentally and numerically demonstrates a versatile particle transportation platform consisting of arrays of magnetic artificial cilia (MAC) actuated by a rotating magnet. By performing a tilted conical motion, the MAC are capable of transporting particles on their tips, along designated directions that can be fully controlled by the externally applied magnetic field, in both liquid and air, at high resolution (particle precision), with varying speeds and for a range of particle sizes. Moreover, the underlying mechanism of the controlled particle transportation is studied in depth by combining experiments with numerical simulations. The results show that the adhesion and friction between the particle and the cilia are essential ingredients of the mechanism underlying the multidirectional transportation. This work offers an advanced solution to controllably transport particles along designated paths in any direction over a surface, which has potential applications in diverse fields including lab-on-a-chip devices, in vitro biomedical sciences, and self-cleaning and antifouling.
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Affiliation(s)
- Shuaizhong Zhang
- Department of Mechanical
Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Rongjing Zhang
- Zernike Institute for Advanced Materials, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Ye Wang
- Department of Mechanical
Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Patrick R. Onck
- Zernike Institute for Advanced Materials, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Jaap M. J. den Toonder
- Department of Mechanical
Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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179
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Li S, Huang P, Ye Z, Wang Y, Wang W, Kong D, Zhang J, Deng L, Dong A. Layer-by-layer zwitterionic modification of diverse substrates with durable anti-corrosion and anti-fouling properties. J Mater Chem B 2020; 7:6024-6034. [PMID: 31545333 DOI: 10.1039/c9tb01337g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A versatile coating strategy, which is suitable for the anti-corrosion and anti-fouling modification of chemically distinct substrates, is crucial in many industries. The immobilization of zwitterionic polymers onto the surface has been proven to be an excellent approach for the improvement of antibiofouling potency. However, the anti-corrosion property has not always been considered simultaneously. Herein, a layer-by-layer (LBL) zwitterionic surface modification strategy was proposed: the surface was first coated with a polydopamine (PDA) layer for anti-corrosion; then, by self-assembling a monolayer of 3-aminopropyl triethoxysilane (APTES), the anti-corrosion ability was further enhanced and the efficiency of grafting was improved; thereafter, by immobilizing the zwitterionic polysulfobetaine (PSB) polymer brush layer, the surface could effectively repel biofouling. The surface chemical composition and morphology characterization was performed by using attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, scanning electron microscopy (SEM), atomic force microscopy (AFM), and water contact angle measurements, demonstrating that the modification was stepwise introduced onto the surface. The thickness of coating was observed and measured by SEM cross-sectional analysis. In vitro studies revealed that the PSB coated surfaces dramatically reduced the adhesion of bovine serum albumin (BSA), bovine plasma fibrinogen (Fg), bovine γ-globulin (γ-GL), the mixture of these proteins, fibroblasts, E. coli and S. aureus with superior cytocompatibility and hemocompatibility. Moreover, the electrochemical impedance spectroscopy and acidic corrosion studies indicated that an excellent and durable anti-corrosion property was established successfully on the surfaces of stainless steel, cotton textile and wood plates, confirming the feasibility of the LBL surface modification strategy. Significantly, this LBL surface chemistry may be widely applied for the modification of other materials, such as biosensors, biomedical implants and/or devices, and marine equipment.
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Affiliation(s)
- Shuangyang Li
- Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China.
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180
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Fu W, Chaiboonchoe A, Dohai B, Sultana M, Baffour K, Alzahmi A, Weston J, Al Khairy D, Daakour S, Jaiswal A, Nelson DR, Mystikou A, Brynjolfsson S, Salehi-Ashtiani K. GPCR Genes as Activators of Surface Colonization Pathways in a Model Marine Diatom. iScience 2020; 23:101424. [PMID: 32798972 PMCID: PMC7452957 DOI: 10.1016/j.isci.2020.101424] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 04/25/2020] [Accepted: 07/28/2020] [Indexed: 11/30/2022] Open
Abstract
Surface colonization allows diatoms, a dominant group of phytoplankton in oceans, to adapt to harsh marine environments while mediating biofoulings to human-made underwater facilities. The regulatory pathways underlying diatom surface colonization, which involves morphotype switching in some species, remain mostly unknown. Here, we describe the identification of 61 signaling genes, including G-protein-coupled receptors (GPCRs) and protein kinases, which are differentially regulated during surface colonization in the model diatom species, Phaeodactylum tricornutum. We show that the transformation of P. tricornutum with constructs expressing individual GPCR genes induces cells to adopt the surface colonization morphology. P. tricornutum cells transformed to express GPCR1A display 30% more resistance to UV light exposure than their non-biofouling wild-type counterparts, consistent with increased silicification of cell walls associated with the oval biofouling morphotype. Our results provide a mechanistic definition of morphological shifts during surface colonization and identify candidate target proteins for the screening of eco-friendly, anti-biofouling molecules. The model diatom Phaeodactylum tricornutum shifts morphology to form biofilms G-protein-coupled receptors (GPCRs) can modulate diatom surface colonization GPCR1A expression can induce biofouling morphotype and UV resistance Identified genes and pathways can serve as targets for anti-biofouling discoveries
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Affiliation(s)
- Weiqi Fu
- Laboratory of Algal, Systems, and Synthetic Biology (LASSB), Division of Science and Math, New York University Abu Dhabi, Abu Dhabi, UAE; Center for Systems Biology and Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, School of Engineering and Natural Sciences, University of Iceland, Reykjavik, Iceland.
| | - Amphun Chaiboonchoe
- Laboratory of Algal, Systems, and Synthetic Biology (LASSB), Division of Science and Math, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Bushra Dohai
- Laboratory of Algal, Systems, and Synthetic Biology (LASSB), Division of Science and Math, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Mehar Sultana
- Center for Genomics and Systems Biology (CGSB), New York University Research Institute, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Kristos Baffour
- Laboratory of Algal, Systems, and Synthetic Biology (LASSB), Division of Science and Math, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Amnah Alzahmi
- Center for Genomics and Systems Biology (CGSB), New York University Research Institute, New York University Abu Dhabi, Abu Dhabi, UAE; Department of Biology, United Arab Emirates University (UAEU), Al Ain, UAE
| | - James Weston
- Core Technology Platforms, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Dina Al Khairy
- Laboratory of Algal, Systems, and Synthetic Biology (LASSB), Division of Science and Math, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Sarah Daakour
- Center for Genomics and Systems Biology (CGSB), New York University Research Institute, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Ashish Jaiswal
- Laboratory of Algal, Systems, and Synthetic Biology (LASSB), Division of Science and Math, New York University Abu Dhabi, Abu Dhabi, UAE
| | - David R Nelson
- Center for Genomics and Systems Biology (CGSB), New York University Research Institute, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Alexandra Mystikou
- Center for Genomics and Systems Biology (CGSB), New York University Research Institute, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Sigurdur Brynjolfsson
- Center for Systems Biology and Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, School of Engineering and Natural Sciences, University of Iceland, Reykjavik, Iceland
| | - Kourosh Salehi-Ashtiani
- Laboratory of Algal, Systems, and Synthetic Biology (LASSB), Division of Science and Math, New York University Abu Dhabi, Abu Dhabi, UAE; Center for Genomics and Systems Biology (CGSB), New York University Research Institute, New York University Abu Dhabi, Abu Dhabi, UAE.
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181
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Koschitzki F, Wanka R, Sobota L, Koc J, Gardner H, Hunsucker KZ, Swain GW, Rosenhahn A. Amphiphilic Dicyclopentenyl/Carboxybetaine-Containing Copolymers for Marine Fouling-Release Applications. ACS APPLIED MATERIALS & INTERFACES 2020; 12:34148-34160. [PMID: 32567832 DOI: 10.1021/acsami.0c07599] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Zwitterionic materials received great attention in recent studies due to their high antifouling potential, though their application in practical coatings is still challenging. Amphiphilic polymers have been proven to be an effective method to combat fouling in the marine environment. This study reports the incorporation of small amounts of zwitterionic carboxybetaine methacrylate (CBMA) into hydrophobic ethylene glycol dicyclopentenyl ether acrylate (DCPEA). A new set of copolymers with varying amphiphilicities was synthesized and coated on chemically modified glass substrates. The antifouling capabilities were assessed against the diatom Navicula perminuta and multiple species in the field. Unsurprisingly, high diatom densities were observed on the hydrophobic control coatings. The integration of small zwitterionic contents of only ∼5 wt % was already sufficient to rapidly form a hydrophilic interface that led to a strong reduction of fouling. Ultralow fouling was also observed for the pure zwitterionic coatings in laboratory experiments, but it failed when tested in the real ocean environment. We noticed that the ability to absorb large amounts of water and the diffuse nature of the interphase correlate with the adsorption of silt, which can mask the hydrophilic chemistries and facilitate the settlement of organisms. The amphiphilic coatings showed low fouling in dynamic short-term field exposures, which could be explained by the reduced tendency of the coatings for sediment adsorption.
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Affiliation(s)
- Florian Koschitzki
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany
| | - Robin Wanka
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany
| | - Lennart Sobota
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany
| | - Julian Koc
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany
| | - Harrison Gardner
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida 32901, United States
| | - Kelli Z Hunsucker
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida 32901, United States
| | - Geoffrey W Swain
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida 32901, United States
| | - Axel Rosenhahn
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany
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182
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Hammond OS, Moura L, Level G, Imberti S, Holbrey JD, Blesic M. Hydration of sulfobetaine dizwitterions as a function of alkyl spacer length. Phys Chem Chem Phys 2020; 22:16040-16050. [PMID: 32706356 DOI: 10.1039/d0cp02654a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The solvation and structure of bolaform dizwitterions containing two sulfobetaine moieties in concentrated aqueous solution were determined using neutron diffraction with isotopic substitution (NDIS) combined with modelling of the measured structure factors using Empirical Potential Structure Refinement (EPSR). Strongly directional local hydration was observed in the polar regimes of the dizwitterions with 48-52 water molecules shared between dizwitterion molecules in a first shell water network around each zwitterion pair. Overall, the double zwitterions were highly hydrated, providing experimental evidence in support of the potential formation of protein-resistant hydration layers at zwitterion-water interfaces.
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Affiliation(s)
- Oliver S Hammond
- The QUILL Research Centre, School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast, BT9 5AG, Northern Ireland, UK.
| | - Leila Moura
- The QUILL Research Centre, School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast, BT9 5AG, Northern Ireland, UK.
| | - Gaelle Level
- The QUILL Research Centre, School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast, BT9 5AG, Northern Ireland, UK.
| | - Silvia Imberti
- ISIS, Rutherford Appleton Laboratory, Harwell Science & Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - John D Holbrey
- The QUILL Research Centre, School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast, BT9 5AG, Northern Ireland, UK.
| | - Marijana Blesic
- The QUILL Research Centre, School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast, BT9 5AG, Northern Ireland, UK.
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183
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Gu Y, Yu L, Mou J, Wu D, Xu M, Zhou P, Ren Y. Research Strategies to Develop Environmentally Friendly Marine Antifouling Coatings. Mar Drugs 2020; 18:E371. [PMID: 32708476 PMCID: PMC7404020 DOI: 10.3390/md18070371] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 01/13/2023] Open
Abstract
There are a large number of fouling organisms in the ocean, which easily attach to the surface of ships, oil platforms and breeding facilities, corrode the surface of equipment, accelerate the aging of equipment, affect the stability and safety of marine facilities and cause serious economic losses. Antifouling coating is an effective method to prevent marine biological fouling. Traditional organic tin and copper oxide coatings are toxic and will contaminate seawater and destroy marine ecology and have been banned or restricted. Environmentally friendly antifouling coatings have become a research hotspot. Among them, the use of natural biological products with antifouling activity as antifouling agents is an important research direction. In addition, some fouling release coatings without antifoulants, biomimetic coatings, photocatalytic coatings and other novel antifouling coatings have also developed rapidly. On the basis of revealing the mechanism of marine biofouling, this paper reviews the latest research strategies to develop environmentally friendly marine antifouling coatings. The composition, antifouling characteristics, antifouling mechanism and effects of various coatings were analyzed emphatically. Finally, the development prospects and future development directions of marine antifouling coatings are forecasted.
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Affiliation(s)
- Yunqing Gu
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Lingzhi Yu
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Jiegang Mou
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Denghao Wu
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Maosen Xu
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Peijian Zhou
- College of Metrology &Measurement Engineering, China Jiliang University, Hangzhou 310018, China; (Y.G.); (L.Y.); (D.W.); (M.X.); (P.Z.)
| | - Yun Ren
- Zhijiang College, Zhejiang University of Technology, Shaoxing 312030, China;
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184
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Recent Advances in Mussel-Inspired Synthetic Polymers as Marine Antifouling Coatings. COATINGS 2020. [DOI: 10.3390/coatings10070653] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Synthetic oligomers and polymers inspired by the multifunctional tethering system (byssus) of the common mussel (genus Mytilus) have emerged since the 1980s as a very active research domain within the wider bioinspired and biomimetic materials arena. The unique combination of strong underwater adhesion, robust mechanical properties and self-healing capacity has been linked to a large extent to the presence of the unusual α-amino acid derivative l-DOPA (l-3,4-dihydroxyphenylalanine) as a building block of the mussel byssus proteins. This paper provides a short overview of marine biofouling, discussing the different marine biofouling species and natural defenses against these, as well as biomimicry as a concept investigated in the marine antifouling context. A detailed discussion of the literature on the Mytilus mussel family follows, covering elements of their biology, biochemistry and the specific measures adopted by these mussels to utilise their l-DOPA-rich protein sequences (and specifically the ortho-bisphenol (catechol) moiety) in their benefit. A comprehensive account is then given of the key catechol chemistries (covalent and non-covalent/intermolecular) relevant to adhesion, cohesion and self-healing, as well as of some of the most characteristic mussel protein synthetic mimics reported over the past 30 years and the related polymer functionalisation strategies with l-DOPA/catechol. Lastly, we review some of the most recent advances in such mussel-inspired synthetic oligomers and polymers, claimed as specifically aimed or intended for use in marine antifouling coatings and/or tested against marine biofouling species.
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185
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Marine Biofouling: A European Database for the Marine Renewable Energy Sector. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2020. [DOI: 10.3390/jmse8070495] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Biofouling is a major problem shared among all maritime sectors employing submerged structures where it leads to substantially increased costs and lowered operational lifespans if poorly addressed. Insight into the ongoing processes at the relevant marine locations is key to effective management of biofouling. Of specific concern for the marine renewable energy (MRE) sector is the fact that information on biofouling composition and magnitude across geographies is dispersed throughout published papers and consulting reports. To enable rapid access to relevant key biofouling events the present work describes a European biofouling database to support the MRE sector and other maritime industries. The database compiles in one document qualitative and quantitative data for challenging biofouling groups, including non-native species associated with MRE and related marine equipment, in different European Ecoregions. It provides information on the occurrence of fouling species and data on key biofouling parameters, such as biofouling thickness and weight. The database aims to aid the MRE sector and offshore industries in understanding which biofouling communities their devices are more susceptible to at a given site, to facilitate informed decisions. In addition, the biofouling mapping is useful for the development of biosecurity risk management plans as well as academic research.
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186
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Koc J, Schönemann E, Wanka R, Aldred N, Clare AS, Gardner H, Swain GW, Hunsucker K, Laschewsky A, Rosenhahn A. Effects of crosslink density in zwitterionic hydrogel coatings on their antifouling performance and susceptibility to silt uptake. BIOFOULING 2020; 36:646-659. [PMID: 32718200 DOI: 10.1080/08927014.2020.1796983] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/08/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
Hydrogel coatings effectively reduce the attachment of proteins and organisms in laboratory assays, in particular when made from zwitterionic monomers. In field experiments with multiple species and non-living material, such coatings suffer from adsorption of particulate matter. In this study, the zwitterionic monomer 3-[N-(2-methacryloyloxyethyl)-N,N-dimethylammonio] propanesulfonate (SPE) was copolymerized with increasing amounts of the photo-crosslinker benzophenon-4-yloxyethyl methacrylate (BPEMA) to systematically alter the density of crosslinks between the polymer chains. The effect of increasing crosslink density on the antifouling (AF) performance of the coatings was investigated in laboratory assays and fields tests. In both cases, the AF performance was improved by increasing the crosslinker content. The coatings reduced protein, diatom, and barnacle accumulation, and showed better resistance to biomass accumulation. The findings underline that the marine AF performance of hydrogel coatings does not only depend on the specific chemical structure of the polymers, but also on their physico-chemical properties such as rigidity and swelling.
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Affiliation(s)
- Julian Koc
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum, Germany
| | - Eric Schönemann
- Institute of Chemistry, Universität Potsdam, Potsdam, Germany
| | - Robin Wanka
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum, Germany
| | - Nick Aldred
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK
- School of Life Sciences, University of Essex, Wivenhoe Park, UK
| | - Anthony S Clare
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Harrison Gardner
- Center for Corrosion & Biofouling, Florida Institute of Technology, Melbourne, FL, USA
| | - Geoffrey W Swain
- Center for Corrosion & Biofouling, Florida Institute of Technology, Melbourne, FL, USA
| | - Kelli Hunsucker
- Center for Corrosion & Biofouling, Florida Institute of Technology, Melbourne, FL, USA
| | - Andre Laschewsky
- Institute of Chemistry, Universität Potsdam, Potsdam, Germany
- Fraunhofer Institute of Applied Polymer Research IAP, Potsdam, Germany
| | - Axel Rosenhahn
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum, Germany
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187
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Fungal spore adhesion on glycidoxypropyltrimethoxy silane modified silica nanoparticle surfaces as revealed by single cell force spectroscopy. Biointerphases 2020; 15:031012. [PMID: 32551719 DOI: 10.1116/6.0000142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Thin film coatings prepared from commercially available glycidoxypropyltrimethoxysilane (GPS) modified silica nanoparticles (SiNPs) (Bindzil® CC301 and Bindzil® CC302) have previously shown excellent antifouling performance against a broad range of microbes [Molino et al., "Hydration layer structure of biofouling-resistant nanoparticles," ACS Nano 12, 11610 (2018)]. In this work, single cell force spectroscopy (SCFS) was used to measure the biological interactions between Epicoccum nigrum fungal spores and the same silica nanoparticle-based surfaces used in the aforementioned study, including a: glass coverslip, unmodified SiNP coatings, and both low (Bindzil® CC301) and high density (CC302) GPS functionalized SiNP coatings as a function of NaCl concentration. From the SCFS curves, the spore adhesion to the surface was greatest on the glass coverslip (20-80 nN) followed by the unmodified SiNP (3-5 nN) across all salt concentrations. Upon approach to both surfaces, the spores showed a long-range attraction generally with a profile characteristic of biointeractions and likely those of the outer cell wall structures or biological constituents. The attractive force allowed the spores to initially adhere to the surface and was found to be linearly proportional to the spore adhesion. In comparison, both high and low density GPS-SINP significantly reduced the spore adhesion (0.5-0.9 nN). In addition, the spore adhesion on high density GPS-SiNP occurred in only 14%-27% of SCFS curves (40%-48% for low density GPS-SiNP) compared to 83%-97% for the unmodified SiNP, indicating that in most cases the GPS functionalization completely prevented spore adhesion. The GPS-SiNP surfaces conversely showed a long-range electrostatic repulsion at low 1mM NaCl that was replaced by short-range repulsion at the higher salt concentrations. From the findings, it is proposed that the attractive force is a critical step in initial adhesion processes of the spore. The effective antifouling properties of the GPS are attributed to the ability to negate the attractive forces, either through electrostatic repulsion in low salt conditions and primarily from short-range repulsion correlating to the previously reported combined steric-hydration effect of the GPS functionalization on SiNP coatings.
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188
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Zhang S, Zuo P, Wang Y, Onck P, Toonder JMJD. Anti-Biofouling and Self-Cleaning Surfaces Featured with Magnetic Artificial Cilia. ACS APPLIED MATERIALS & INTERFACES 2020; 12:27726-27736. [PMID: 32476404 PMCID: PMC7303956 DOI: 10.1021/acsami.0c05403] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 06/01/2020] [Indexed: 05/22/2023]
Abstract
The fouling of surfaces submerged in a liquid is a serious problem for many applications including lab-on-a-chip devices and marine sensors. Inspired by the versatility of cilia in manipulating fluids and particles, it is experimentally demonstrated that surfaces partially covered with magnetic artificial cilia (MAC) have the capacity to efficiently prevent attachment and adhesion of real biofouling agents-microalgae Scenedesmus sp. Actuation of the MAC resulted in over 99% removal of the algae for two different scenarios: (1) actuating the MAC immediately after injecting the algae into a microfluidic chip, demonstrating antifouling and (2) starting to actuate the MAC 1 week after injecting the algae into the chip and leaving them to grow in static conditions, showing self-cleaning. It is shown that the local and global flows generated by the actuated MAC are substantial, resulting in hydrodynamic shear forces acting on the algae, which are likely to be key to efficient antifouling and self-cleaning. These findings and insights will potentially lead to novel types of self-cleaning and antifouling strategies, which may have a relevant practical impact on different fields and applications including lab-on-a-chip devices and water quality analyzers.
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Affiliation(s)
- Shuaizhong Zhang
- Department
of Mechanical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Pan Zuo
- Department
of Mechanical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Ye Wang
- Department
of Mechanical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Patrick Onck
- Zernike
Institute for Advanced Materials, University
of Groningen, 9712 CP Groningen, The Netherlands
| | - Jaap M. J. den Toonder
- Department
of Mechanical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, 5600 MB Eindhoven, The Netherlands
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189
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Alsufyani T, Califano G, Deicke M, Grueneberg J, Weiss A, Engelen AH, Kwantes M, Mohr JF, Ulrich JF, Wichard T. Macroalgal-bacterial interactions: identification and role of thallusin in morphogenesis of the seaweed Ulva (Chlorophyta). JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:3340-3349. [PMID: 32016363 PMCID: PMC7289720 DOI: 10.1093/jxb/eraa066] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 02/01/2020] [Indexed: 05/07/2023]
Abstract
Macroalgal microbiomes have core functions related to biofilm formation, growth, and morphogenesis of seaweeds. In particular, the growth and development of the sea lettuce Ulva spp. (Chlorophyta) depend on bacteria releasing morphogenetic compounds. Under axenic conditions, the macroalga Ulva mutabilis develops a callus-like phenotype with cell wall protrusions. However, co-culturing with Roseovarius sp. (MS2) and Maribacter sp. (MS6), which produce various stimulatory chemical mediators, completely recovers morphogenesis. This ecological reconstruction forms a tripartite community which can be further studied for its role in cross-kingdom interactions. Hence, our study sought to identify algal growth- and morphogenesis-promoting factors (AGMPFs) capable of phenocopying the activity of Maribacter spp. We performed bioassay-guided solid-phase extraction in water samples collected from U. mutabilis aquaculture systems. We uncovered novel ecophysiological functions of thallusin, a sesquiterpenoid morphogen, identified for the first time in algal aquaculture. Thallusin, released by Maribacter sp., induced rhizoid and cell wall formation at a concentration of 11 pmol l-1. We demonstrated that gametes acquired the iron complex of thallusin, thereby linking morphogenetic processes with intracellular iron homeostasis. Understanding macroalgae-bacteria interactions permits further elucidation of the evolution of multicellularity and cellular differentiation, and development of new applications in microbiome-mediated aquaculture systems.
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Affiliation(s)
- Taghreed Alsufyani
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
- Algal Research Laboratory, Chemistry Department, Science Faculty, Taif University, Taif, Saudi Arabia
| | - Gianmaria Califano
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
| | - Michael Deicke
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
| | - Jan Grueneberg
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
- Jena School for Microbial Communication, Jena, Germany
| | - Anne Weiss
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
- Jena School for Microbial Communication, Jena, Germany
| | - Aschwin H Engelen
- Centre for Marine Sciences (CCMAR), University of Algarve, Campus de Gambelas, Faro, Portugal
| | - Michiel Kwantes
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
| | - Jan Frieder Mohr
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
- Jena School for Microbial Communication, Jena, Germany
| | - Johann F Ulrich
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
| | - Thomas Wichard
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Jena, Germany
- Jena School for Microbial Communication, Jena, Germany
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190
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Clarke JL, Davey PA, Aldred N. Sea anemones (Exaiptasia pallida) use a secreted adhesive and complex pedal disc morphology for surface attachment. BMC ZOOL 2020. [DOI: 10.1186/s40850-020-00054-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Abstract
Background
The mechanism by which sea anemones attach to surfaces underwater remains elusive, which is surprising given their ubiquitous distribution in the world’s oceans and tractability for experimental biology. Their adhesion is mechanically interesting, bridging the interface between very hard and soft materials. The Cnidaria are thought to have evolved adhesion to surfaces at least 505 Ma ago implying that, among the Metazoa, only Porifera developed this capability earlier. The purpose of this study was primarily to address an existing hypothesis, that spirocysts (a sticky class of cnidocyst) facilitate adhesion to surfaces, as observed during prey capture.
Results
We demonstrated conclusively that spirocysts were not involved in the pedal disc adhesion of Exaiptasia pallida. Second, we applied a variety of imaging methods to develop an understanding of the true adhesion mechanism. Morphological studies using scanning electron microscopy identified a meshwork of adhesive material, unique to the pedal disc. Serial block-face SEM highlighted four classes of cells that could secrete the adhesive from the pedal disc ectoderm. A variety of histochemical techniques identified proteins, glycans and quinones in the cell contents and secreted adhesive, with variation in contents of specific cell-types in different areas of the body.
Conclusions
Spirocysts are not used by Exaiptasia pallida for adhesion to surfaces. Instead, a structurally and compositionally complex secreted glue was observed, firmly attaching the animals underwater. The results of this study provide a basis for further investigations of adhesion in Cnidaria, and establish E. pallida as a new model organism for bioadhesion research.
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191
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Cui M, Ma Y, Wang L, Wang Y, Wang S, Luo X. Antifouling sensors based on peptides for biomarker detection. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115903] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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192
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193
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Seo E, Seong MR, Lee JW, Lim H, Park J, Kim H, Hwang H, Lee D, Kim J, Kim GH, Hwang DS, Lee SJ. Anti-Biofouling Features of Eco-Friendly Oleamide-PDMS Copolymers. ACS OMEGA 2020; 5:11515-11521. [PMID: 32478240 PMCID: PMC7254802 DOI: 10.1021/acsomega.0c00633] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
The biofouling of marine organisms on a surface induces serious economic damage. One of the conventional anti-biofouling strategies is the use of toxic chemicals. In this study, a new eco-friendly oleamide-PDMS copolymer (OPC) is proposed for sustainable anti-biofouling and effective drag reduction. The anti-biofouling characteristics of the OPC are investigated using algal spores and mussels. The proposed OPC is found to inhibit the adhesion of algal spores and mussels. The slippery features of the fabricated OPC surfaces are examined by direct measurement of pressure drops in channel flows. The proposed OPC surface would be utilized in various industrial applications including marine vehicles and biomedical devices.
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Affiliation(s)
- Eunseok Seo
- Department
of Mechanical Engineering, Pohang University
of Science and Technology (POSTECH), Pohang 37673, South Korea
| | - Myeong Ryun Seong
- Department
of Mechanical Engineering, Pohang University
of Science and Technology (POSTECH), Pohang 37673, South Korea
| | - Ji Woong Lee
- Department
of Biological Sciences, Kongju National
University, Gongju 314-701, South Korea
| | - Heejin Lim
- Department
of New Biology, DGIST (Daegu Gyeongbuk Institute
of Science and Technology), Daegu 711-873, South Korea
| | - Jiwon Park
- Department
of Microbiology, Chungbuk National University, Cheongju 28644, South Korea
| | - Hyungbin Kim
- Division
of Integrative Biosciences and Biotechnology (IBB), Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea
| | - Hyundo Hwang
- Department
of Mechanical Engineering, Pohang University
of Science and Technology (POSTECH), Pohang 37673, South Korea
| | - Dohoon Lee
- Division
of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea
| | - Jiho Kim
- Pohang
Accelerator Laboratory, Pohang 37673, South Korea
| | - Gwang Hoon Kim
- Department
of Biological Sciences, Kongju National
University, Gongju 314-701, South Korea
| | - Dong Soo Hwang
- Division
of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea
| | - Sang Joon Lee
- Department
of Mechanical Engineering, Pohang University
of Science and Technology (POSTECH), Pohang 37673, South Korea
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194
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Navarro LA, Shah TP, Zauscher S. Grafting To of Bottlebrush Polymers: Conformation and Kinetics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:4745-4756. [PMID: 32105081 DOI: 10.1021/acs.langmuir.9b03620] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Specifically adsorbed bottlebrush coatings are found in nature as brush-like glycoproteins that decorate biointerfaces and provide antifouling, lubrication, or wear-protection. Although various synthetic strategies have been developed to mimic glycoprotein structure and function, the use of these mimics is still limited because of the current lack of understanding of their adsorption behavior and surface conformation. In this paper, we examine the adsorption behavior of PEG-based, biotinylated bottlebrushes with different backbone and bristle lengths to streptavidin model surfaces in phosphate-buffered saline. By using quartz crystal microbalance, localized surface plasmon resonance, and atomic force microscopy, we learn how bottlebrush dimensions impact their adsorption kinetics, surface conformation, mechanical properties, and antifouling properties. Our bottlebrushes qualitatively mirror the adsorption behavior of linear polymers and exhibit three kinetic regimes of adsorption: (I) a transport-limited regime, (II) a pause, and (III) a penetration-limited regime. Furthermore, we find that the bristle length more dramatically affects brush properties than the backbone length. Generally, larger bottlebrush dimensions lead to reduced molar adsorption, retarded kinetics, weaker antifouling, and softer brush coatings. Longer bristles also lead to less mass adsorption, while the opposite trend is observed for increasing backbone length. In summary, our findings aid the rational design of new bottlebrush coatings by elucidating how their dimensions impact adsorption, surface conformation, and the properties of the final coating.
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Affiliation(s)
- Luis A Navarro
- Department of Mechanical Engineering and Materials Science, Duke University, 101 Science Drive, Durham, North Carolina 27708, United States
| | - Tejank P Shah
- Department of Mechanical Engineering and Materials Science, Duke University, 101 Science Drive, Durham, North Carolina 27708, United States
| | - Stefan Zauscher
- Department of Mechanical Engineering and Materials Science, Duke University, 101 Science Drive, Durham, North Carolina 27708, United States
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195
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Stelfox M, Lett C, Reid G, Souch G, Sweet M. Minimum drift times infer trajectories of ghost nets found in the Maldives. MARINE POLLUTION BULLETIN 2020; 154:111037. [PMID: 32174490 DOI: 10.1016/j.marpolbul.2020.111037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 03/01/2020] [Accepted: 03/01/2020] [Indexed: 06/10/2023]
Abstract
This study explores methods to estimate minimum drift times of ghost nets found in the Maldives with the aim of identifying a putative origin. We highlight that percentage cover of biofouling organisms and capitulum length of Lepas anatifera are two methods that provide these estimates. Eight ghost nets were collected in the Maldives and estimated drift times ranged between 7.5 and 101 days. Additionally, Lagrangian simulations identified drift trajectories of 326 historical ghost nets records. Purse seine fisheries (associated with Korea, Mauritius, the Philippines, Spain, France and Seychelles) and gill nets from Sri Lanka were identified as 'high risk' fisheries with regard to likley origins of ghost nets drifting into the Maldives. These fisheries are active in areas where dense particle clusters occured (drift trajectories between 30 and 120 days). Interestingly, ghost nets drifting less than 30 days however, remained inside the exclusive economic zone of the Maldivian archipelago highlighting potential illegal, unreported and unregulated fishing activity is occuring in this area. This study therefore points to the urgent need for gear loss reporting to be undertaken, especially by purse seine and gill net fisheries in order to ascertain the source of this major threat to marine life. This should also be coupled with an improvment in the data focused on spatial distribution of the abandoned, lost or discarded fishing gear originating from both large- and small-scale fisheries.
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Affiliation(s)
- Martin Stelfox
- Aquatic Research Facility, Environment Sustainability Research Centre, College of Life and Natural Sciences, University of Derby, UK; Olive Ridley Project, 11 Dane Close, Bramhall, Stockport, Cheshire SK7 3LF, UK.
| | | | - Geraldine Reid
- Botany, National Museums Liverpool, William Brown Street, Liverpool L3 8EN, UK
| | - Graham Souch
- Aquatic Research Facility, Environment Sustainability Research Centre, College of Life and Natural Sciences, University of Derby, UK
| | - Michael Sweet
- Aquatic Research Facility, Environment Sustainability Research Centre, College of Life and Natural Sciences, University of Derby, UK; Olive Ridley Project, 11 Dane Close, Bramhall, Stockport, Cheshire SK7 3LF, UK
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196
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Microfluidic accumulation assay to quantify the attachment of the marine bacterium Cobetia marina on fouling-release coatings. Biointerphases 2020; 15:031014. [DOI: 10.1116/6.0000240] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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197
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Wang H, Christiansen DE, Mehraeen S, Cheng G. Winning the fight against biofilms: the first six-month study showing no biofilm formation on zwitterionic polyurethanes. Chem Sci 2020; 11:4709-4721. [PMID: 34122926 PMCID: PMC8159170 DOI: 10.1039/c9sc06155j] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 04/13/2020] [Indexed: 12/12/2022] Open
Abstract
Biofilms have been a long-standing challenge for healthcare, water transport, and many other industries. They lead to bacterial growth and infections in animals, food products, and humans, cause premature removal of the implanted materials or devices from patients, and facilitate fouling and corrosion of metals. Despite some published and patented methods on minimizing the effects of biofilms for a short period (less than two weeks), there exists no successful means to mitigate or prevent the long-term formation of biofilms. It is even more challenging to integrate critical anti-fouling properties with other needed physical and chemical properties for a range of applications. In this study, we developed a novel approach for combining incompatible, highly polar anti-fouling groups with less polar, mechanically modifying groups into one material. A multifunctional carboxybetaine precursor was designed and introduced into polyurethane. The carboxybetaine precursors undergo rapid, self-catalyzed hydrolysis at the water/material interface and provide critical anti-fouling properties that lead to undetectable bacterial attachment and zero biofilm formation after six months of constant exposure to Pseudomonas aeruginosa and Staphylococcus epidermidis under the static condition in a nutrient-rich medium. This zwitterionic polyurethane is the first material to demonstrate both critical anti-biofilm properties and tunable mechanical properties and directly validates the unproven anti-fouling strategy and hypothesis for biofilm formation prevention. This approach of designing 'multitasking materials' will be useful for the development of next generation anti-fouling materials for a variety of applications.
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Affiliation(s)
- Huifeng Wang
- Department of Chemical Engineering, The University of Illinois at Chicago Chicago IL 60607 USA https://gancheng.people.uic.edu
| | - Daniel Edward Christiansen
- Department of Chemical Engineering, The University of Illinois at Chicago Chicago IL 60607 USA https://gancheng.people.uic.edu
| | - Shafigh Mehraeen
- Department of Chemical Engineering, The University of Illinois at Chicago Chicago IL 60607 USA https://gancheng.people.uic.edu
| | - Gang Cheng
- Department of Chemical Engineering, The University of Illinois at Chicago Chicago IL 60607 USA https://gancheng.people.uic.edu
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198
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Saha A, Nir S, Reches M. Amphiphilic Peptide with Dual Functionality Resists Biofouling. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:4201-4206. [PMID: 32192338 DOI: 10.1021/acs.langmuir.9b03997] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Biofouling, the accumulation of organisms on surfaces, can lead to several undesirable phenomena, including hospital-acquired infections, blockage of water purification systems, and food contamination. The solution to the problem should be nontoxic and environmentally friendly, so that it could be applied on different surfaces and could come into contact with food, water, or human tissues. Peptides can provide such a solution, since they are biocompatible and biodegradable materials that can resist biofouling, either by preventing the attachment of organisms to the surface (antifouling) or by killing the bacteria (antimicrobial activity). This paper presents an amphiphilic peptide with antifouling, antimicrobial, and adhesive properties. The peptide adheres to titanium surfaces and inhibits the adhesion of both Gram-negative and Gram-positive bacteria to surfaces. In addition, it reduces the growth of bacteria in solution. This peptide has both antifouling and antimicrobial properties, which could be useful in health care systems, food packaging, and other systems that suffer from biocontamination.
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Affiliation(s)
- Abhijit Saha
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram, Jerusalem 9190401, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Sivan Nir
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram, Jerusalem 9190401, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Meital Reches
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram, Jerusalem 9190401, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
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199
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Park J, Jang GH, Jung YW, Seo H, Han HS, Lee J, Seo Y, Jeon H, Ok MR, Cha PR, Seok HK, Lee KH, Kim YC. Tailoring H 2O 2 generation kinetics with magnesium alloys for efficient disinfection on titanium surface. Sci Rep 2020; 10:6536. [PMID: 32300122 PMCID: PMC7162939 DOI: 10.1038/s41598-020-63007-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 03/23/2020] [Indexed: 12/13/2022] Open
Abstract
A new antibacterial strategy for Ti has been developed without the use of any external antibacterial agents and surface treatments. By combining Mg alloys with Ti, H2O2, which is an oxidizing agent that kills bacteria, was spontaneously generated near the surface of Ti. Importantly, the H2O2 formation kinetics can be precisely controlled by tailoring the degradation rates of Mg alloys connected to Ti. Through microstructural and electrochemical modification of Mg with alloying elements (Ca, Zn), the degradation rates of Mg alloys were controlled, and the H2O2 release kinetics was accelerated when the degradation rate of Mg alloys increased. With the introduction of an in vivo assessment platform comprised of Escherichia coli (E. coli) and transgenic zebrafish embryos, we are able to design optimized antibacterial systems (Ti-Mg and Ti-Mg-3wt% Zn) that can selectively eradicate E. coli while not harming the survival rate, development, and biological functions of zebrafish embryos. We envision that our antibacterial strategy based on utilization of sacrificial Mg alloys could broaden the current palette of antibacterial platforms for metals.
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Affiliation(s)
- Jimin Park
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA
- Center for Biomaterials, Korea Institute of Science & Technology, Seoul, 02792, Republic of Korea
| | - Gun Hyuk Jang
- Center for Biomaterials, Korea Institute of Science & Technology, Seoul, 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
- Research & Development, NuclixBio, Seoul, 08380, Republic of Korea
| | - Yeon Wook Jung
- Center for Biomaterials, Korea Institute of Science & Technology, Seoul, 02792, Republic of Korea
- Department of Materials Science and Engineering, Korea University, Seoul, 02481, Republic of Korea
| | - Hyunseon Seo
- Center for Biomaterials, Korea Institute of Science & Technology, Seoul, 02792, Republic of Korea
| | - Hyung-Seop Han
- Center for Biomaterials, Korea Institute of Science & Technology, Seoul, 02792, Republic of Korea
| | - Joonho Lee
- Department of Materials Science and Engineering, Korea University, Seoul, 02481, Republic of Korea
| | - Youngmin Seo
- Center for Biomaterials, Korea Institute of Science & Technology, Seoul, 02792, Republic of Korea
| | - Hojeong Jeon
- Center for Biomaterials, Korea Institute of Science & Technology, Seoul, 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Myoung-Ryul Ok
- Center for Biomaterials, Korea Institute of Science & Technology, Seoul, 02792, Republic of Korea
| | - Pil-Ryung Cha
- School of Advanced Materials Engineering, Kookmin University, Seoul, 02707, Republic of Korea
| | - Hyun-Kwang Seok
- Center for Biomaterials, Korea Institute of Science & Technology, Seoul, 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Kwan Hyi Lee
- Center for Biomaterials, Korea Institute of Science & Technology, Seoul, 02792, Republic of Korea.
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea.
| | - Yu-Chan Kim
- Center for Biomaterials, Korea Institute of Science & Technology, Seoul, 02792, Republic of Korea.
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea.
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200
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Jiang P, Wu H, Qing L, Xu X, Jin Z, Yang L, Zhao S. Wetting Transition of Ionic Substrate by Modulating Surface Charge Distribution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3667-3675. [PMID: 32160749 DOI: 10.1021/acs.langmuir.9b03933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Surface wettability regulation plays a crucial role in antifouling and related applications. For regulating surface wettability, one of the effective approaches is to modulate the surface charge distribution. Herein, we report a theoretical study for unraveling the mechanistic relation between surface charge distribution and ionic substrate wettability. Specifically, acetonitrile liquids at ambient condition in contact with various ionic substrates are considered. At different surface charge distributions, the interfacial thermodynamic properties are investigated by means of molecular density functional theory. We find that the variation of the spatial interval among the discrete charges strongly alters the substrate-acetonitrile interaction and leads to an oscillation in the interfacial tension, indicating that the substrate can be tuned from a solvophobic one to a solvophilic one. This trend can be further enhanced by increasing the charge quantity. The underlying mechanisms are extensively discussed and expatiated. Our work provides theoretical guidance to engineer and regulate surface wettability.
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Affiliation(s)
- Peng Jiang
- Key Laboratory of Green Chemical Process of Ministry of Education, Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, China
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hongguan Wu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Leying Qing
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaofei Xu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhehui Jin
- School of Mining and Petroleum Engineering, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Li Yang
- Key Laboratory of Green Chemical Process of Ministry of Education, Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, China
| | - Shuangliang Zhao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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