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Yang H, Mawignon FJ, Li C, Luo Y, Yu J, Li G, Zheng Y, Lu S, Wang Z, Sufyan M, Qin L, Zhang Y. Biomimetic Slippery Surface with Exclusive Liquid-Repellent and Self-Cleaning Properties for Antifouling. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:12443-12453. [PMID: 38833582 DOI: 10.1021/acs.langmuir.4c00697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
The nature always offers amazing inspiration, where it is highly desirable to endow coatings on marine equipment with powerful functions. An excellent example is slippery zone of Nepenthes pitcher, which possesses novel liquid-repellent and self-cleaning performance. Therefore, this study presents an efficient fabrication method to prepare a novel coating. The coatings were fabricated by designing biomimetic textures extracted from the lunate bodies of slippery zone on polydimethylsiloxane (PDMS) and then grafting Dictyophora indusiata polysaccharide (DIP) modifier. The as-prepared slippery coatings exhibited outstanding antifouling properties against kinds of daily life pollutants such as Chlorella and coffee. This synergistic strategy was proposed combined with environmentally friendly modifier grafting and heterogeneous microstructure on the surface to broaden new probabilities for manufacturing slippery coatings with incredible protective functionality.
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Affiliation(s)
- Hao Yang
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Institute of Design Science and Basic Components. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, P.R.China
| | - Fagla Jules Mawignon
- School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P.R.China
| | - Censhu Li
- Key Laboratory of Biomedical Information of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P.R.China
| | - Yusen Luo
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Institute of Design Science and Basic Components. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, P.R.China
| | - Jiazi Yu
- Key Laboratory of Biomedical Information of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P.R.China
| | - Guoming Li
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Institute of Design Science and Basic Components. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, P.R.China
| | - Yezi Zheng
- Key Laboratory of Biomedical Information of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P.R.China
| | - Shan Lu
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Institute of Design Science and Basic Components. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, P.R.China
| | - Zheng Wang
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Institute of Design Science and Basic Components. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, P.R.China
| | - Muhammad Sufyan
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Institute of Design Science and Basic Components. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, P.R.China
| | - Liguo Qin
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Institute of Design Science and Basic Components. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, P.R.China
| | - Yali Zhang
- Key Laboratory of Biomedical Information of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P.R.China
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Tempesti J, Langeneck J, Lardicci C, Maltagliati F, Castelli A. Cut the rope: Short-term colonization of mooring lines by fouling community within the port of Livorno (Northern Tyrrhenian Sea, Western Mediterranean), focusing on alien species recruitment. MARINE ENVIRONMENTAL RESEARCH 2023; 189:106041. [PMID: 37327635 DOI: 10.1016/j.marenvres.2023.106041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/18/2023]
Abstract
The early stages of fouling development on artificial substrates were examined for spatial-temporal variation in the commercial and touristic harbours (use destinations) of the port of Livorno (Tuscany, Italy). The experiment was carried out by submerging two types of experimental ropes with different surface textures, considering three times of submersion. Particular attention was paid to the colonization dynamics of non-indigenous species (NIS). The type of rope did not significantly affect fouling development. However, when the NIS assemblage and the whole community were taken into account, the colonization of ropes varied depending on the use destination. The touristic harbour exhibited a degree of fouling colonization higher than the commercial one. NIS were observed in both harbours since the beginning of colonization, eventually achieving higher population densities in the touristic harbour. The use of experimental ropes represents a promising quick cost-effective tool for monitoring of NIS presence in port environments.
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Affiliation(s)
- Jonathan Tempesti
- Dipartimento di Biologia, Università di Pisa (CoNISMa), Via Derna, 1, 56126, Pisa, Italy; Centro Interdipartimentale di Ricerca per Lo Studio Degli Effetti Del Cambiamento Climatico (CIRSEC), Università di Pisa, Via Del Borghetto 80, 56124, Pisa, Italy
| | - Joachim Langeneck
- Consorzio Nazionale Interuniversitario per le Scienze Del Mare (CoNISMa), U.L.R. di Lecce, Campus Ecotekne, Università Del Salento, Strada Provinciale Lecce, Monteroni, 73100, Lecce, Italy.
| | - Claudio Lardicci
- Centro Interdipartimentale di Ricerca per Lo Studio Degli Effetti Del Cambiamento Climatico (CIRSEC), Università di Pisa, Via Del Borghetto 80, 56124, Pisa, Italy; Dipartimento di Scienze Della Terra, Università di Pisa, Via Santa Maria, 53, 56126, Pisa, Italy
| | - Ferruccio Maltagliati
- Dipartimento di Biologia, Università di Pisa (CoNISMa), Via Derna, 1, 56126, Pisa, Italy; Centro Interdipartimentale di Ricerca per Lo Studio Degli Effetti Del Cambiamento Climatico (CIRSEC), Università di Pisa, Via Del Borghetto 80, 56124, Pisa, Italy
| | - Alberto Castelli
- Dipartimento di Biologia, Università di Pisa (CoNISMa), Via Derna, 1, 56126, Pisa, Italy; Centro Interdipartimentale di Ricerca per Lo Studio Degli Effetti Del Cambiamento Climatico (CIRSEC), Università di Pisa, Via Del Borghetto 80, 56124, Pisa, Italy
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3
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Tempesti J, Langeneck J, Lardicci C, Maltagliati F, Castelli A. Short-term colonization of fouling communities within the port of Livorno (Northern Tyrrhenian Sea, Western Mediterranean): Influence of substrate three-dimensional complexity on non-indigenous species establishment. MARINE POLLUTION BULLETIN 2022; 185:114302. [PMID: 36335690 DOI: 10.1016/j.marpolbul.2022.114302] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 10/20/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
The influence of substrate morphology on early stages of fouling development was assessed through submerged experimental substrates with different morphological complexity. The experiment was carried out within commercial and touristic harbours of the port of Livorno (Italy), analysing the communities at three steps of colonization (14, 28, 42 days). We assessed the effect of substrate complexity on recruitment of non-indigenous species (NIS), combined with the influence of port use destinations. NIS were recorded in both use destination areas since the first step of colonization. Substrate morphological complexity significantly affected fouling colonization and particularly NIS assemblages. We found that high-complexity substrates are particularly suitable for NIS establishment in comparison with less complex ones. The touristic harbour exhibited a potential for fouling colonization higher than the commercial harbour. These results contributed to the understanding of factors involved in NIS establishment and spread, as well as in their spatial-temporal dynamics within port environments.
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Affiliation(s)
- Jonathan Tempesti
- Dipartimento di Biologia, Università di Pisa, CoNISMa, Via Derna, 1, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca per lo Studio degli Effetti del Cambiamento Climatico (CIRSEC), Università di Pisa, Via del Borghetto 80, 56124 Pisa, Italy
| | - Joachim Langeneck
- Dipartimento di Biologia, Università di Pisa, CoNISMa, Via Derna, 1, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca per lo Studio degli Effetti del Cambiamento Climatico (CIRSEC), Università di Pisa, Via del Borghetto 80, 56124 Pisa, Italy
| | - Claudio Lardicci
- Centro Interdipartimentale di Ricerca per lo Studio degli Effetti del Cambiamento Climatico (CIRSEC), Università di Pisa, Via del Borghetto 80, 56124 Pisa, Italy; Dipartimento di Scienze della Terra, Università di Pisa, Via Santa Maria, 53, 56126 Pisa, Italy
| | - Ferruccio Maltagliati
- Dipartimento di Biologia, Università di Pisa, CoNISMa, Via Derna, 1, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca per lo Studio degli Effetti del Cambiamento Climatico (CIRSEC), Università di Pisa, Via del Borghetto 80, 56124 Pisa, Italy.
| | - Alberto Castelli
- Dipartimento di Biologia, Università di Pisa, CoNISMa, Via Derna, 1, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca per lo Studio degli Effetti del Cambiamento Climatico (CIRSEC), Università di Pisa, Via del Borghetto 80, 56124 Pisa, Italy
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Kumar S, Ye F, Dobretsov S, Dutta J. Nanocoating Is a New Way for Biofouling Prevention. FRONTIERS IN NANOTECHNOLOGY 2021. [DOI: 10.3389/fnano.2021.771098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Biofouling is a major concern to the maritime industry. Biofouling increases fuel consumption, accelerates corrosion, clogs membranes and pipes, and reduces the buoyancy of marine installations, such as ships, platforms, and nets. While traditionally marine installations are protected by toxic biocidal coatings, due to recent environmental concerns and legislation, novel nanomaterial-based anti-fouling coatings are being developed. Hybrid nanocomposites of organic-inorganic materials give a possibility to combine the characteristics of both groups of material generating opportunities to prevent biofouling. The development of bio-inspired surface designs, progress in polymer science and advances in nanotechnology is significantly contributing to the development of eco-friendly marine coatings containing photocatalytic nanomaterials. The review mainly discusses photocatalysis, antifouling activity, and formulation of coatings using metal and metal oxide nanomaterials (nanoparticles, nanowires, nanorods). Additionally, applications of nanocomposite coatings for inhibition of micro- and macro-fouling in marine environments are reviewed.
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5
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Desalination membranes with ultralow biofouling via synergistic chemical and topological strategies. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119212] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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6
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Porous silicone substrates inhibit permanent barnacle attachment under natural conditions. Biointerphases 2020; 15:061013. [PMID: 33339459 DOI: 10.1116/6.0000608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Barnacles are able to effectively adhere to most surfaces underwater. Dewetting of the corresponding surface prior to the release of their permanent adhesive plays an important role in the attachment process. Possibly, a surface that is able to interfere with this process may have exceptional fouling repellence and fouling release abilities. Therefore, open-pored foams made from polydimethylsiloxane (PDMS) were tested together with flat PDMS samples as controls in a 13-week-long field experiment in the Baltic Sea. On a weekly basis, both settlement and fouling density development of the bay barnacle Balanus (=Amphibalanus) improvisus were monitored. The overall settlement was close to zero on PDMS foams and the few attached barnacles were not able to stay on the PDMS foams longer than 1 week after initial settlement. Changes in the stiffness of the PDMS foams did not affect these results. Open-pored PDMS foam systems may be a promising tool in the development of new, innovative antifouling strategies.
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7
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Marine Antibiofouling Properties of TiO2 and Ti-Cu-O Films Deposited by Aerosol-Assisted Chemical Vapor Deposition. COATINGS 2020. [DOI: 10.3390/coatings10080779] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The actual interest in developing light-induced catalytic coatings to act as an antibiofouling alternative has recently prompted interest in the incorporation of Cu into TiO2 films, working as a visible light sensitizer catalyst. TiO2 and new Ti-Cu-O films with Cu contents ranging between 16% and 75% Cu/(Cu + Ti) are deposited by aerosol-assisted metalorganic chemical vapor deposition at a substrate temperature of 550 °C. The films are composed of TiO2 anatase phase, mixed with Cu2O when including Cu in the composition. Pure TiO2 films’ morphologies are characterized by the formation of microflower-like structures with nanometric petals, which induce a high specific surface. These features are not present in Ti-Cu-O films. A UV-Visible study revealed that the optical band gap energy decreases with increasing Cu content. Interestingly, Ti-Cu-O films presented a highly photo-catalytic activity in the orange-G degradation. Marine biofouling field tests in Lorient’s Harbor in France and in vitro tests were carried out in order to evaluate the antifouling performance of the films, revealing that topography and chemical composition can act differently on different species. Field tests revealed that TiO2 microflowers reduced the fouling coverage. Besides, Ti-Cu-O films with 16 at.% Cu presented lower fouling coverage than films containing 58 at.% Cu. In vitro tests using two diatoms (P. tricornutum and N. perminuta) showed that the spaces between microflowers play a significant role in the adhesion of diatoms: microalgae adhere less when spaces are bigger than their cells, compared to when spaces are of the same size as cells. Films containing Cu did not alter N. perminuta growth nor adhesion, while they affected P. tricornutum by lowering its growth rate and adhesion without noticeable toxicity. Indeed, Cu-Ti-O is a very promising non-toxic fouling release film for marine and industrial applications.
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Erramilli S, Neumann TV, Chester D, Dickey MD, Brown AC, Genzer J. Effect of surface interactions on the settlement of particles on a sinusoidally corrugated substrate. RSC Adv 2020; 10:11348-11356. [PMID: 35495333 PMCID: PMC9050433 DOI: 10.1039/c9ra10297c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 03/06/2020] [Indexed: 12/15/2022] Open
Abstract
Naturally-occurring surface topographies abound in nature and endow diverse properties, i.e., superhydrophobicity, adhesion, anti-fouling, self-cleaning, anti-glare, anti-bacterial, and many others. Researchers have attempted to replicate such topographies to create human-made surfaces with desired functionalities. For example, combining the surface topography with judicial chemical composition could provide an effective, non-toxic solution to combat non-specific biofouling. A systematic look at the effect of geometry, modulus, and chemistry on adhesion is warranted. In this work, we use a model system that comprises silica (SiO x ) beads interacting with a substrate made of a commercial polydimethylsiloxane kit (PDMS, Sylgard 184) featuring a sinusoidal topography. To examine the impact of interactions on particle settlement, we functionalize the surfaces of both the PDMS substrate and the SiO x beads with polyacrylic acid (PAA) and polyethyleneimine (PEI), respectively. We also use the PDMS commercial kit coated with liquid glass (LG) to study the effect of the substrate modulus on particle settlement. Substrates with a higher aspect ratio (i.e., amplitude/periodicity) encourage adsorption of particles along the sides of the channel compared with substrates with lower aspect ratio. We employ colloidal probe microscopy to demonstrate the effect of interaction between the substrate and the particle. The interplay among the surface modulus, geometry, and interactions between the surface and the particle governs particle settlement on sinusoidally-corrugated substrates.
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Affiliation(s)
- Shreya Erramilli
- Department of Materials Science & Engineering, North Carolina State University Raleigh NC 27695-7907 USA
| | - Taylor V Neumann
- Department of Chemical & Biomolecular Engineering, North Carolina State University Raleigh NC 27695-7905 USA
| | - Daniel Chester
- Joint Department of Biomedical Engineering, North Carolina State University, University of North Carolina at Chapel Hill Raleigh NC 27695-7115 USA
- Comparative Medicine Institute, North Carolina State University Raleigh NC 27695-7905 USA
| | - Michael D Dickey
- Department of Chemical & Biomolecular Engineering, North Carolina State University Raleigh NC 27695-7905 USA
| | - Ashley C Brown
- Joint Department of Biomedical Engineering, North Carolina State University, University of North Carolina at Chapel Hill Raleigh NC 27695-7115 USA
- Comparative Medicine Institute, North Carolina State University Raleigh NC 27695-7905 USA
| | - Jan Genzer
- Department of Chemical & Biomolecular Engineering, North Carolina State University Raleigh NC 27695-7905 USA
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9
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Zhao Z, Guo Y, Wei H, Ran Q, Liu J, Zhang Q, Gu W. Potential distribution of Notopterygium incisum Ting ex H. T. Chang and its predicted responses to climate change based on a comprehensive habitat suitability model. Ecol Evol 2020; 10:3004-3016. [PMID: 32211172 PMCID: PMC7083672 DOI: 10.1002/ece3.6117] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 01/19/2020] [Accepted: 01/27/2020] [Indexed: 11/07/2022] Open
Abstract
Notopterygium incisum Ting ex H. T. Chang is a rare and endangered traditional Chinese medicinal plant. In this research, we built a comprehensive habitat suitability (CHS) model to analyze the potential suitable habitat distribution of this species in the present and future in China. First, using nine different algorithms, we built an ensemble model to explore the possible impacts of climate change on the habitat distribution of this species. Then, based on this model, we built a CHS model to further identify the distribution characteristics of N. incisum-suitable habitats in three time periods (current, 2050s, and 2070s) while considering the effects of soil and vegetation conditions. The results indicated that the current suitable habitat for N. incisum covers approximately 83.76 × 103 km2, and these locations were concentrated in the Tibet Autonomous Region, Gansu Province, Qinghai Province, and Sichuan Province. In the future, the areas of suitable habitat for N. incisum would significantly decrease and would be 69.53 × 103 km2 and 60.21 × 103 km2 in the 2050s and 2070s, respectively. However, the area of marginally suitable habitat would remain relatively stable. This study provides a more reliable and comprehensive method for modelling the current and future distributions of N. incisum, and it provides valuable insights for highlighting priority areas for medicinal plant conservation and resource utilization.
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Affiliation(s)
- Zefang Zhao
- School of Geography and Tourism Shaanxi Normal University Xi'an China
- Faculty of Geographical Science Beijing Normal University Beijing China
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China Shaanxi Normal University Xi'an China
| | - Yanlong Guo
- National Tibetan Plateau Data Centre Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing China
- The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry The Ministry of Education Shaanxi Normal University Xi'an China
| | - Haiyan Wei
- School of Geography and Tourism Shaanxi Normal University Xi'an China
| | - Qiao Ran
- School of Geography and Tourism Shaanxi Normal University Xi'an China
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China Shaanxi Normal University Xi'an China
| | - Jing Liu
- School of Geography and Tourism Shaanxi Normal University Xi'an China
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China Shaanxi Normal University Xi'an China
- The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry The Ministry of Education Shaanxi Normal University Xi'an China
| | - Quanzhong Zhang
- School of Geography and Tourism Shaanxi Normal University Xi'an China
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China Shaanxi Normal University Xi'an China
- The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry The Ministry of Education Shaanxi Normal University Xi'an China
| | - Wei Gu
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China Shaanxi Normal University Xi'an China
- The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry The Ministry of Education Shaanxi Normal University Xi'an China
- College of Life Sciences Shaanxi Normal University Xi'an China
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10
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Structural tailoring of sharkskin-mimetic patterned reverse osmosis membranes for optimizing biofouling resistance. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117602] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Xie B, Wu J, Huang L. Temporal and spatial variations of macrofouling organisms on ecological floating beds in Yundang Lagoon, China. MARINE POLLUTION BULLETIN 2019; 148:156-167. [PMID: 31425858 DOI: 10.1016/j.marpolbul.2019.07.061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 07/24/2019] [Accepted: 07/24/2019] [Indexed: 06/10/2023]
Abstract
Spatial-temporal variations of macrofouling organisms that attach to ecological floating beds (EFBs) in the Yundang Lagoon were investigated to identify factors that influence the appearance of macrofouling organisms. Results show that the composition, abundance, biomass, and dominance of macrofouling organisms on EFBs exhibited significant seasonal variation. Pearson correlation analysis indicates that the abundance and biomass of the bivalve Mytilopsis sallei showed negative correlation with root biomass (p < 0.05) and particulate matter (p < 0.05). Environmental (temperature and salinity, p < 0.05) and biological (bottom-up control) factors are the main drivers of population turnover. There were significant species differences of macrofouling organisms within the different parts of the lagoon, which were attributed to environmental characteristics such as hydrodynamics, dissolved oxygen, and the degree of eutrophication. Results of this study provide a basis for controlling macrofouling organisms, while improving the stability of EFBs and the efficiency of ecological restoration.
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Affiliation(s)
- Bin Xie
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen 361005, China
| | - Jiaxin Wu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen 361005, China
| | - Lingfeng Huang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen 361005, China.
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12
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Aktas OC, Metzger W, Mees L, Martinez MM, Haidar A, Oberringer M, Wennemuth G, Pütz N, Ghori MZ, Pohlemann T, Veith M. Controlling fibroblast adhesion and proliferation by 1D Al 2O 3 nanostructures. IET Nanobiotechnol 2019; 13:621-625. [PMID: 31432796 DOI: 10.1049/iet-nbt.2018.5088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The fibrotic encapsulation, which is mainly accompanied by an excessive proliferation of fibroblasts, is an undesired phenomenon after the implantation of various medical devices. Beside the surface chemistry, the topography plays also a major role in the fibroblast-surface interaction. In the present study, one-dimensional aluminium oxide (1D Al2O3) nanostructures with different distribution densities were prepared to reveal the response of human fibroblasts to the surface topography. The cell size, the cell number and the ability to form well-defined actin fibres and focal adhesions were significantly impaired with increasing distribution density of the 1D Al2O3 nanostructures on the substratum.
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Affiliation(s)
- Oral Cenk Aktas
- Department of Paediatric Cardiology, Saarland University, 66421 Homburg, Germany.
| | - Wolfgang Metzger
- Department of Trauma, Hand and Reconstructive Surgery, Saarland University, 66421 Homburg, Germany
| | - Lisa Mees
- Department of Trauma, Hand and Reconstructive Surgery, Saarland University, 66421 Homburg, Germany
| | - Marina Miro Martinez
- INM-Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany
| | - Ayman Haidar
- Department of Paediatric Cardiology, Saarland University, 66421 Homburg, Germany
| | - Martin Oberringer
- Department of Trauma, Hand and Reconstructive Surgery, Saarland University, 66421 Homburg, Germany
| | - Gunther Wennemuth
- University Clinic Essen, Department of Anatomy, 45147 Essen, Germany
| | - Norbert Pütz
- Department of Anatomy and Cell Biology, Saarland University, 66421 Homburg, Germany
| | - Muhammad Zubair Ghori
- Institute for Materials Science, Christian-Albrechts-University of Kiel, 24143 Kiel, Germany
| | - Tim Pohlemann
- Department of Trauma, Hand and Reconstructive Surgery, Saarland University, 66421 Homburg, Germany
| | - Michael Veith
- INM-Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany
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Carve M, Scardino A, Shimeta J. Effects of surface texture and interrelated properties on marine biofouling: a systematic review. BIOFOULING 2019; 35:597-617. [PMID: 31298039 DOI: 10.1080/08927014.2019.1636036] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 06/09/2019] [Accepted: 06/19/2019] [Indexed: 05/22/2023]
Abstract
This systematic review examines effects of surface texture on marine biofouling and characterizes key research methodologies. Seventy-five published articles met selection criteria for qualitative analysis; experimental data from 36 underwent quantitative meta-analysis. Most studies investigated fouling mechanisms and antifouling performance only in laboratory assays with one to several test species. Textures were almost exclusively a single layer of regularly arranged geometric features rather than complex hierarchical or irregular designs. Textures in general had no effect or an inconclusive effect on fouling in 46% of cases. However, effective textures more often decreased (35%) rather than increased (19%) fouling. Complex designs were more effective against fouling (51%) than were regular geometric features (32%). Ratios of feature height, width, or pitch to organism body length were significant influences. The authors recommend further research on promising complex and hierarchical texture designs with more test species, as well as field studies to ground-truth laboratory results.
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Affiliation(s)
- Megan Carve
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, Victoria, Australia
| | - Andrew Scardino
- Maritime Division, Defence Science and Technology, Fishermans Bend, Victoria, Australia
| | - Jeff Shimeta
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, Victoria, Australia
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14
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Erramilli S, Genzer J. Influence of surface topography attributes on settlement and adhesion of natural and synthetic species. SOFT MATTER 2019; 15:4045-4067. [PMID: 31066434 DOI: 10.1039/c9sm00527g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Surface topographies of various sizes, shapes, and spatial organization abound in nature. They endow properties such as super-hydrophobicity, reversible adhesion, anti-fouling, self-cleaning, anti-glare, and anti-bacterial, just to mention a few. Researchers have long attempted to replicate these structures to create artificial surfaces with the functionalities found in nature. In this review, we decompose the attributes of surface topographies into their constituents, namely feature dimensions, geometry, and stiffness, and examine how they contribute (individually or collectively) to settlement and adhesion of natural organisms and synthetic particles on the surface. The size of features that comprise the topography affects the contact area between the particle and surface as well as its adhesion and contributes to the observed adsorptive properties of the surface. The geometry of surface perturbations can also affect the contact area and gives rise to anisotropic particle settlement. Surface topography also affects the local stiffness of the surface and governs the adhesion strength on the surface. Overall, systematically studying attributes of surface topography and elucidating how each of them affects adhesion and settlement of particles will facilitate the design of topographically-corrugated surfaces with desired adsorption characteristics.
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Affiliation(s)
- Shreya Erramilli
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, NC, USA
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15
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Pocivavsek L, Ye SH, Pugar J, Tzeng E, Cerda E, Velankar S, Wagner WR. Active wrinkles to drive self-cleaning: A strategy for anti-thrombotic surfaces for vascular grafts. Biomaterials 2019; 192:226-234. [PMID: 30458358 PMCID: PMC7248685 DOI: 10.1016/j.biomaterials.2018.11.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/24/2018] [Accepted: 11/03/2018] [Indexed: 12/16/2022]
Abstract
The inner surfaces of arteries and veins are naturally anti-thrombogenic, whereas synthetic materials placed in blood contact commonly experience thrombotic deposition that can lead to device failure or clinical complications. Presented here is a bioinspired strategy for self-cleaning anti-thrombotic surfaces using actuating surface topography. As a first test, wrinkled polydimethylsiloxane planar surfaces are constructed that can repeatedly transition between smooth and wrinkled states. When placed in contact with blood, these surfaces display markedly less platelet deposition than control samples. Second, for the specific application of prosthetic vascular grafts, the potential of using pulse pressure, i.e. the continual variation of blood pressure between systole and diastole, to drive topographic actuation was investigated. Soft cylindrical tubes with a luminal surface that transitioned between smooth and wrinkled states were constructed. Upon exposure to blood under continual pressure pulsation, these cylindrical tubes also showed reduced platelet deposition versus control samples under the same fluctuating pressure conditions. In both planar and cylindrical cases, significant reductions in thrombotic deposition were observed, even when the wrinkles had wavelengths of several tens of μm, far larger than individual platelets. We speculate that the observed thrombo-resistance behavior is attributable to a biofilm delamination process in which the bending energy within the biofilm overcomes interfacial adhesion. This novel strategy to reduce thrombotic deposition may be applicable to several types of medical devices placed into the circulatory system, particularly vascular grafts.
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Affiliation(s)
- Luka Pocivavsek
- Department of Surgery, The University of Chicago, Chicago, IL, 60637, USA.
| | - Sang-Ho Ye
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Joseph Pugar
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Edith Tzeng
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA
| | - Enrique Cerda
- Department of Physics, Universidad de Santiago de Chile, Santiago, Chile
| | - Sachin Velankar
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, 15213, USA; Department of Mechanical Engineering, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
| | - William R Wagner
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA; Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, 15213, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
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Chambers LC, Huang Y, Jack KS, Blakey I. Spatial control of the topography of photo-sensitive block copolymer thin films. Polym Chem 2019. [DOI: 10.1039/c9py00200f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Spatially controlling self-assembly of block copolymer thin films through photoinduced molecular interactions that significantly impact on the glass transition temperature.
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Affiliation(s)
- Lewis C. Chambers
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- Brisbane
- Australia
| | - Yun Huang
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- Brisbane
- Australia
| | - Kevin S. Jack
- Centre for Microscopy and Microanalysis
- The University of Queensland
- Brisbane
- Australia
| | - Idriss Blakey
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- Brisbane
- Australia
- Centre for Microscopy and Microanalysis
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Kerrison PD, Stanley MS, Mitchell E, Cunningham L, Hughes AD. A life-stage conflict of interest in kelp: Higher meiospore settlement where sporophyte attachment is weak. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Herget K, Frerichs H, Pfitzner F, Tahir MN, Tremel W. Functional Enzyme Mimics for Oxidative Halogenation Reactions that Combat Biofilm Formation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707073. [PMID: 29920781 DOI: 10.1002/adma.201707073] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/18/2018] [Indexed: 06/08/2023]
Abstract
Transition-metal oxide nanoparticles and molecular coordination compounds are highlighted as functional mimics of halogenating enzymes. These enzymes are involved in halometabolite biosynthesis. Their activity is based upon the formation of hypohalous acids from halides and hydrogen peroxide or oxygen, which form bioactive secondary metabolites of microbial origin with strong antibacterial and antifungal activities in follow-up reactions. Therefore, enzyme mimics and halogenating enzymes may be valuable tools to combat biofilm formation. Here, halogenating enzyme models are briefly described, enzyme mimics are classified according to their catalytic functions, and current knowledge about the settlement chemistry and adhesion of fouling organisms is summarized. Enzyme mimics with the highest potential are showcased. They may find application in antifouling coatings, indoor and outdoor paints, polymer membranes for water desalination, or in aquacultures, but also on surfaces for food packaging, door handles, hand rails, push buttons, keyboards, and other elements made of plastic where biofilms are present. The use of natural compounds, formed in situ with nontoxic and abundant metal oxide enzyme mimics, represents a novel and efficient "green" strategy to emulate and utilize a natural defense system for preventing bacterial colonization and biofilm growth.
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Affiliation(s)
- Karoline Herget
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55128, Mainz, Germany
| | - Hajo Frerichs
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55128, Mainz, Germany
| | - Felix Pfitzner
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55128, Mainz, Germany
| | - Muhammad Nawaz Tahir
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55128, Mainz, Germany
| | - Wolfgang Tremel
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55128, Mainz, Germany
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Pradhan S, Kumar S, Mohanty S, Nayak SK. Environmentally Benign Fouling-Resistant Marine Coatings: A Review. POLYM-PLAST TECH MAT 2018. [DOI: 10.1080/03602559.2018.1482922] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Sukanya Pradhan
- Department of Plastic Technology, Central Institute of Plastics Engineering and Technology (CIPET), Chennai, INDIA
| | - Sudheer Kumar
- Department of Plastic Technology, Laboratory for Advanced Research in Polymeric Materials (LARPM), Bhubaneswar, INDIA
| | - Smita Mohanty
- Department of Plastic Technology, Central Institute of Plastics Engineering and Technology (CIPET), Chennai, INDIA
- Department of Plastic Technology, Laboratory for Advanced Research in Polymeric Materials (LARPM), Bhubaneswar, INDIA
| | - Sanjay K. Nayak
- Department of Plastic Technology, Central Institute of Plastics Engineering and Technology (CIPET), Chennai, INDIA
- Department of Plastic Technology, Laboratory for Advanced Research in Polymeric Materials (LARPM), Bhubaneswar, INDIA
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Piola R, Ang ASM, Leigh M, Wade SA. A comparison of the antifouling performance of air plasma spray (APS) ceramic and high velocity oxygen fuel (HVOF) coatings for use in marine hydraulic applications. BIOFOULING 2018; 34:479-491. [PMID: 29772915 DOI: 10.1080/08927014.2018.1465052] [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: 11/28/2017] [Accepted: 04/10/2018] [Indexed: 06/08/2023]
Abstract
Maritime hydraulic components are often exposed to harsh environmental conditions which can lead to accelerated deterioration, reduced function, equipment failure and costly repair. Two leading causes of maritime hydraulic failure are biofouling accumulation and corrosion. This study examined the antifouling performance of three candidate replacement high velocity oxygen fuel (HVOF) coatings relative to the performance of the current baseline air plasma spray (APS) ceramic coating for protection of hydraulic actuators. Following 20 weeks immersion at tropical and temperate field exposure sites, the control APS ceramic accumulated significantly greater levels of biofouling compared to the HVOF coatings. More specifically, the magnitude of growth of real-world nuisance hard fouling observed on in-service hydraulic components (eg calcareous tubeworms and encrusting bryozoans) was significantly greater on the APS ceramic relative to HVOF coatings. Possible explanations for the observed patterns include differences in surface topography and roughness, the electrochemical potential of the surfaces and the colour/brightness of the coatings.
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Affiliation(s)
- Richard Piola
- a Maritime Division , Defence Science and Technology , Melbourne , Australia
- d Defence Materials Technology Centre , Melbourne , Australia
| | - Andrew S M Ang
- b Faculty of Science, Engineering and Technology , Swinburne University of Technology , Hawthorn , Australia
- d Defence Materials Technology Centre , Melbourne , Australia
| | - Matthew Leigh
- c MacTaggart Scott Australia , Adelaide , Australia
- d Defence Materials Technology Centre , Melbourne , Australia
| | - Scott A Wade
- b Faculty of Science, Engineering and Technology , Swinburne University of Technology , Hawthorn , Australia
- d Defence Materials Technology Centre , Melbourne , Australia
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Lu Z, Chen Z, Guo Y, Ju Y, Liu Y, Feng R, Xiong C, Ober CK, Dong L. Flexible Hydrophobic Antifouling Coating with Oriented Nanotopography and Nonleaking Capsaicin. ACS APPLIED MATERIALS & INTERFACES 2018; 10:9718-9726. [PMID: 29464942 DOI: 10.1021/acsami.7b19436] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Incorporating natural product antifoulants (NPAs) into coatings with controlled surface topography is considered a promising way to suppress marine fouling. However, the rapid leakage of NPAs and the relatively complicated process of constructing well-patterned topography remain unresolved problems for practical applications. In this work, capsaicin bonded to CoFe2O4/gelatin magnetic nanoparticles was mixed with a polydimethylsiloxane (PDMS)-based block copolymer. When applied together by a simple spray-coating method, these materials formed a film. The leakage of capsaicin was restrained by the chemical bonds with the CoFe2O4/gelatin nanospheres. The primary nanorough structure was constructed by the phase separation of the PDMS-based copolymer. The secondary nanorough structure was formed by the incorporation of capsaicin-loaded CoFe2O4/gelatin nanospheres, which were demonstrated to improve the orientation of the PDMS-based block copolymer chains. The combination of oriented nanotopography and nonleaking capsaicin endows the coating with enhanced, long-lasting antifouling ability.
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Affiliation(s)
- Zhiwei Lu
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Zhuo Chen
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Yi Guo
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Yanyun Ju
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Yang Liu
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Rui Feng
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Chuanxi Xiong
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Christopher K Ober
- Department of Materials Science and Engineering , Cornell University , New York 14853 , United States
| | - Lijie Dong
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
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Schoch PK, Genzer J. Adsorption of size-polydisperse particles on sinusoidally corrugated surfaces. MOLECULAR SIMULATION 2017. [DOI: 10.1080/08927022.2017.1405161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Phillip K. Schoch
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
- ExxonMobil, Annandale, NJ, USA
| | - Jan Genzer
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
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Zhang Y, Zhao W, Chen Z, Liu Z, Cao H, Zhou C, Cui P. Influence of biomimetic boundary structure on the antifouling performances of siloxane modified resin coatings. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.05.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Pansch C, Jonsson PR, Berglin M, Pinori E, Wrange AL. A new flow-through bioassay for testing low-emission antifouling coatings. BIOFOULING 2017; 33:613-623. [PMID: 28792237 DOI: 10.1080/08927014.2017.1349897] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 06/28/2017] [Indexed: 06/07/2023]
Abstract
Current antifouling (AF) technologies are based on the continuous release of biocides into the water, and consequently discharge into the environment. Major efforts to develop more environmentally friendly coatings require efficient testing in laboratory assays, followed by field studies. Barnacles are important fouling organisms worldwide, increasing hydrodynamic drag on ships and damaging coatings on underwater surfaces, and thus are extensively used as models in AF research, mostly in static, laboratory-based systems. Reliable flow-through test assays for the screening of biocide-containing AF paints, however, are rare. Herein, a flow-through bioassay was developed to screen for diverse low-release biocide paints, and to evaluate their effects on pre- and post-settlement traits in barnacles. The assay distinguishes between the effects from direct surface contact and bulk-water effects, which are crucial when developing low-emission AF coatings. This flow-through bioassay adds a new tool for rapid laboratory-based first-stage screening of candidate compounds and novel AF formulations.
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Affiliation(s)
- Christian Pansch
- a Department of Marine Ecology , GEOMAR Helmholtz Centre for Ocean Research Kiel , Kiel , Germany
- b Department of Marine Sciences-Tjärnö , University of Gothenburg , Strömstad , Sweden
| | - Per R Jonsson
- b Department of Marine Sciences-Tjärnö , University of Gothenburg , Strömstad , Sweden
| | - Mattias Berglin
- c Bioscience and Materials , RISE Research Institutes of Sweden , Borås , Sweden
| | - Emiliano Pinori
- c Bioscience and Materials , RISE Research Institutes of Sweden , Borås , Sweden
| | - Anna-Lisa Wrange
- c Bioscience and Materials , RISE Research Institutes of Sweden , Borås , Sweden
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Lüdecke C, Roth M, Yu W, Horn U, Bossert J, Jandt KD. Nanorough titanium surfaces reduce adhesion of Escherichia coli and Staphylococcus aureus via nano adhesion points. Colloids Surf B Biointerfaces 2016; 145:617-625. [DOI: 10.1016/j.colsurfb.2016.05.049] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 04/26/2016] [Accepted: 05/17/2016] [Indexed: 01/06/2023]
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Gu H, Chen A, Song X, Brasch ME, Henderson JH, Ren D. How Escherichia coli lands and forms cell clusters on a surface: a new role of surface topography. Sci Rep 2016; 6:29516. [PMID: 27412365 PMCID: PMC4944170 DOI: 10.1038/srep29516] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 06/20/2016] [Indexed: 12/21/2022] Open
Abstract
Bacterial response to surface topography during biofilm formation was studied using 5 μm tall line patterns of poly (dimethylsiloxane) (PDMS). Escherichia coli cells attached on top of protruding line patterns were found to align more perpendicularly to the orientation of line patterns when the pattern narrowed. Consistently, cell cluster formation per unit area on 5 μm wide line patterns was reduced by 14-fold compared to flat PDMS. Contrasting the reduced colony formation, cells attached on narrow patterns were longer and had higher transcriptional activities, suggesting that such unfavorable topography may present a stress to attached cells. Results of mutant studies indicate that flagellar motility is involved in the observed preference in cell orientation on narrow patterns, which was corroborated by the changes in cell rotation pattern before settling on different surface topographies. These findings led to a set of new design principles for creating antifouling topographies, which was validated using 10 μm tall hexagonal patterns.
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Affiliation(s)
- Huan Gu
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY 13244, USA.,Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY 13244, USA
| | - Aaron Chen
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY 13244, USA.,Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY 13244, USA
| | - Xinran Song
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY 13244, USA.,Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY 13244, USA
| | - Megan E Brasch
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY 13244, USA.,Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY 13244, USA
| | - James H Henderson
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY 13244, USA.,Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY 13244, USA
| | - Dacheng Ren
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY 13244, USA.,Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY 13244, USA.,Department of Civil and Environmental Engineering, Syracuse University, Syracuse, NY 13244, USA.,Department of Biology, Syracuse University, Syracuse, NY 13244, United States
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Lund-Hansen LC, Hawes I, Nielsen MH, Sorrell BK. Is colonization of sea ice by diatoms facilitated by increased surface roughness in growing ice crystals? Polar Biol 2016. [DOI: 10.1007/s00300-016-1981-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Frenzel N, Maenz S, Sanz Beltrán V, Völpel A, Heyder M, Sigusch BW, Lüdecke C, Jandt KD. Template assisted surface microstructuring of flowable dental composites and its effect on microbial adhesion properties. Dent Mater 2016; 32:476-87. [PMID: 26775012 DOI: 10.1016/j.dental.2015.12.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 12/09/2015] [Accepted: 12/09/2015] [Indexed: 10/22/2022]
Abstract
OBJECTIVES Despite their various advantages, such as good esthetic properties, absence of mercury and adhesive bonding to teeth, modern dental composites still have some drawbacks, e.g., a relatively high rate of secondary caries on teeth filled with composite materials. Recent research suggests that microstructured biomaterials surfaces may reduce microbial adhesion to materials due to unfavorable physical material-microbe interactions. The objectives of this study were, therefore, to test the hypotheses that (i) different surface microstructures can be created on composites by a novel straightforward approach potentially suitable for clinical application and (ii) that these surface structures have a statistically significant effect on microbial adhesion properties. METHODS Six different dental composites were initially tested for their suitability for microstructuring by polydimethylsiloxane (PDMS) templates. Each composite was light-cured between a glass slide and a microstructured PDMS template. The nano-hybrid composite Grandio Flow was the only tested composite with satisfying structurability, and was therefore used for the bacterial adhesion tests. Composites samples were structured with four different microstructures (flat, cubes, linear trapezoid structures, flat pyramids) and incubated for 4h in centrifuged saliva. The bacterial adherence was then characterized by colony forming units (CFUs) and scanning electron microscopy (SEM). RESULTS All four microstructures were successfully transferred from the PDMS templates to the composite Grandio Flow. The CFU-test as well as the quantitative analysis of the SEM images showed the lowest bacterial adhesion on the flat composite samples. The highest bacterial adhesion was observed on the composite samples with linear trapezoid structures, followed by flat pyramids and cubes. The microstructure of dental composite surfaces statistically significantly influenced the adhesion of oral bacteria. SIGNIFICANCE Modifying the composite surface structure may be a clinically suitable approach to control the microbial adhesion and thus, to reduce the risk of secondary caries at dental composite restorations. Smaller composite surface structures may be useful for accomplishing this.
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Affiliation(s)
- Nadja Frenzel
- Department of Conservative Dentistry, University Hospital Jena, Friedrich Schiller University, An der alten Post 4, D-07743 Jena, Germany
| | - Stefan Maenz
- Otto Schott Institute of Materials Research, Faculty of Physics and Astronomy, Friedrich Schiller University, Löbdergraben 32, D-07743 Jena, Germany
| | - Vanesa Sanz Beltrán
- Otto Schott Institute of Materials Research, Faculty of Physics and Astronomy, Friedrich Schiller University, Löbdergraben 32, D-07743 Jena, Germany
| | - Andrea Völpel
- Department of Conservative Dentistry, University Hospital Jena, Friedrich Schiller University, An der alten Post 4, D-07743 Jena, Germany
| | - Markus Heyder
- Department of Conservative Dentistry, University Hospital Jena, Friedrich Schiller University, An der alten Post 4, D-07743 Jena, Germany
| | - Bernd W Sigusch
- Department of Conservative Dentistry, University Hospital Jena, Friedrich Schiller University, An der alten Post 4, D-07743 Jena, Germany
| | - Claudia Lüdecke
- Otto Schott Institute of Materials Research, Faculty of Physics and Astronomy, Friedrich Schiller University, Löbdergraben 32, D-07743 Jena, Germany; Jena School for Microbial Communication (JSMC), Friedrich Schiller University, Jenergasse 8, D-07743 Jena, Germany
| | - Klaus D Jandt
- Otto Schott Institute of Materials Research, Faculty of Physics and Astronomy, Friedrich Schiller University, Löbdergraben 32, D-07743 Jena, Germany; Jena School for Microbial Communication (JSMC), Friedrich Schiller University, Jenergasse 8, D-07743 Jena, Germany.
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Benedetti A, Cirisano F, Delucchi M, Faimali M, Ferrari M. Potentiodynamic study of Al-Mg alloy with superhydrophobic coating in photobiologically active/not active natural seawater. Colloids Surf B Biointerfaces 2016; 137:167-75. [PMID: 26319307 DOI: 10.1016/j.colsurfb.2015.07.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 07/17/2015] [Accepted: 07/19/2015] [Indexed: 11/30/2022]
Abstract
Superhydrophobic coating technology is regarded as an attractive possibility for the protection of materials in a sea environment. DC techniques are a useful tool to characterize metals' behavior in seawater in the presence/absence of coatings and/or corrosion inhibitors. In this work, investigations concerning Al-5%Mg alloy with and without a sprayed superhydrophobic coating were carried out with potentiodynamic scans in photobiologically active and not active seawater (3 weeks of immersion). In not photobiologically active seawater, the presence of the superhydrophobic coating did not prevent pitting corrosion. With time, the coating underwent local exfoliations, but intact areas still preserved superhydrophobicity. In photobiologically active seawater, on samples without the superhydrophobic coating (controls) pitting was inhibited, probably due to the adsorption of organic compounds produced by the photobiological activity. After 3 weeks of immersion, the surface of the coating became hydrophilic due to diatom coverage. As suggested by intermediate observations, the surface below the diatom layer is suspected of having lost its superhydrophobicity due to early stages of biofouling processes (organic molecule adsorption and diatom attachment/gliding). Polarization curves also revealed that the metal below the coating underwent corrosion inhibiting phenomena as observed in controls, likely due to the permeation of organic molecules through the coating. Hence, the initial biofouling stages (days) occurring in photobiologically active seawater can both accelerate the loss of superhydrophobicity of coatings and promote corrosion inhibition on the underlying metal. Finally, time durability of superhydrophobic surfaces in real seawater still remains the main challenge for applications, where the early stages of immersion are demonstrated to be of crucial importance.
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Affiliation(s)
- Alessandro Benedetti
- Istituto per l'Energetica e le Interfasi - U.O.S. Genova, Consiglio Nazionale delle Ricerche, Via De Marini 6, 16149 Genova, Italy.
| | - Francesca Cirisano
- Istituto per l'Energetica e le Interfasi - U.O.S. Genova, Consiglio Nazionale delle Ricerche, Via De Marini 6, 16149 Genova, Italy
| | - Marina Delucchi
- Dipartimento di Ingegneria Civile, Chimica e Ambientale, P.le Kennedy,1, 16129 Genova, Italy
| | - Marco Faimali
- Istituto per le Scienze Marine - U.O.S. Genova, Consiglio Nazionale delle Ricerche, Via De Marini 6, 16149 Genova, Italy
| | - Michele Ferrari
- Istituto per l'Energetica e le Interfasi - U.O.S. Genova, Consiglio Nazionale delle Ricerche, Via De Marini 6, 16149 Genova, Italy.
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30
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Ferrari M, Benedetti A. Superhydrophobic surfaces for applications in seawater. Adv Colloid Interface Sci 2015; 222:291-304. [PMID: 25759005 DOI: 10.1016/j.cis.2015.01.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 01/07/2015] [Accepted: 01/16/2015] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Technological fields in which seawater is implied are numerorus, working in seawater (shipping, oil industry, marine aquaculture,..), and exploiting seawater in plants (cooling heat-exchange, desalination, power plants,..). All suffer from detrimental effects induced by biofouling mainly enhancing material failures and limiting energetic efficiencies. Among the remediation solutions, technologies coniugating economical, green and efficiency criteria should represent the direction. With the aim to meet these criteria, superhydrophobic (SH) technology attracted many researches for the protection of materials operating in contact with seawater. METHOD In this work, the literature focusing on such technology for the protection of surfaces in contact with seawater has been reviewed, mainly focusing on boat and ship hull protection. RESULTS Despite the growing interest around SH technology in seawater for fouling control and friction drag reduction of hulls, to date literature shows that superhydrophobicity in seawater is still limited if compared with a time window compatible with technological needs (set on years). An evaluation of the causes of early superhydrophobicity loss under operative conditions clearly indicates that, to the best of present knowledge, a SH surface cannot preserve this feature by itself alone (especially in real seawater). Hence, we have considered to highlight the behaviour of SH surfaces in seawater in relation to early stages of biocolonization (conditioning film and pioneering bioslime formation). Considering the annual costs sustained for the biofouling impact control, advantages coming from SH surfaces, in terms of foul control and friction drag reduction, would allow economical savings allowing to cover both the appliance of longevity keeping strategies of the SH surfaces and investments in green technologies of SH coating life cycle (production, storing). In addition a brief outlook is provided on technological fields exploiting seawater in pipelines (power and desalination plants), where the SH surface finishing finds potentially interesting application for fouling and corrosion prevention applications.
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Whalan S, Abdul Wahab MA, Sprungala S, Poole AJ, de Nys R. Larval settlement: the role of surface topography for sessile coral reef invertebrates. PLoS One 2015; 10:e0117675. [PMID: 25671562 PMCID: PMC4324781 DOI: 10.1371/journal.pone.0117675] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2014] [Accepted: 11/16/2014] [Indexed: 01/30/2023] Open
Abstract
For sessile marine invertebrates with complex life cycles, habitat choice is directed by the larval phase. Defining which habitat-linked cues are implicated in sessile invertebrate larval settlement has largely concentrated on chemical cues which are thought to signal optimal habitat. There has been less effort establishing physical settlement cues, including the role of surface microtopography. This laboratory based study tested whether surface microtopography alone (without chemical cues) plays an important contributing role in the settlement of larvae of coral reef sessile invertebrates. We measured settlement to tiles, engineered with surface microtopography (holes) that closely matched the sizes (width) of larvae of a range of corals and sponges, in addition to surfaces with holes that were markedly larger than larvae. Larvae from two species of scleractinian corals (Acropora millepora and Ctenactis crassa) and three species of coral reef sponges (Luffariella variabilis, Carteriospongia foliascens and Ircinia sp.,) were used in experiments. L. variabilis, A. millepora and C. crassa showed markedly higher settlement to surface microtopography that closely matched their larval width. C. foliascens and Ircinia sp., showed no specificity to surface microtopography, settling just as often to microtopography as to flat surfaces. The findings of this study question the sole reliance on chemical based larval settlement cues, previously established for some coral and sponge species, and demonstrate that specific physical cues (surface complexity) can also play an important role in larval settlement of coral reef sessile invertebrates.
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Affiliation(s)
- Steve Whalan
- Marine Ecology Research Centre, School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, 2480, New South Wales, Australia
| | - Muhammad A. Abdul Wahab
- MACRO—the Centre for Macroalgal Resources and Biotechnology, James Cook University, Townsville, 4811, Queensland, Australia
- Australian Institute of Marine Science, PMB 3 Townsville, Queensland, 4810, Australia
- AIMS@JCU, James Cook University, Townsville, 4811, Queensland, Australia
| | - Susanne Sprungala
- ARC Centre for Excellence for Coral Reef Studies, James Cook University, Townsville, 4811, Queensland, Australia
- College of Public Health, Medical and Veterinary Sciences, Department of Molecular Sciences, James Cook University, Townsville, 4811, Queensland, Australia
| | - Andrew J. Poole
- CSIRO Manufacturing Flagship, Pigdons Road, Waurn Ponds, 3216, Victoria, Australia
| | - Rocky de Nys
- MACRO—the Centre for Macroalgal Resources and Biotechnology, James Cook University, Townsville, 4811, Queensland, Australia
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Palmer C, Young MT. Surface drag reduction and flow separation control in pelagic vertebrates, with implications for interpreting scale morphologies in fossil taxa. ROYAL SOCIETY OPEN SCIENCE 2015; 2:140163. [PMID: 26064576 PMCID: PMC4448786 DOI: 10.1098/rsos.140163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 12/15/2014] [Indexed: 06/04/2023]
Abstract
Living in water imposes severe constraints on the evolution of the vertebrate body. As a result of these constraints, numerous extant and extinct aquatic vertebrate groups evolved convergent osteological and soft-tissue adaptations. However, one important suite of adaptations is still poorly understood: dermal cover morphologies and how they influence surface fluid dynamics. This is especially true for fossil aquatic vertebrates where the soft tissue of the dermis is rarely preserved. Recent studies have suggested that the keeled scales of mosasaurids (pelagic lizards that lived during the Late Cretaceous) aided in surface frictional drag reduction in a manner analogous to the riblets on shark placoid scales. However, here we demonstrate that mosasaurid scales were over an order of magnitude too large to have this effect. More likely they increased the frictional drag of the body and may have played a role in controlling flow separation by acting as surface roughness that turbulated the boundary layer. Such a role could have reduced pressure drag and enhanced manoeuvrability. We caution those studying fossil aquatic vertebrates from positing the presence of surface drag reducing morphologies, because as we show herein, to be effective such features need to have a spacing of approximately 0.1 mm or less.
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Affiliation(s)
- Colin Palmer
- Ocean and Earth Science, National Oceanography Centre, University of Southampton, Southampton SO14 3ZH, UK
- School of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK
| | - Mark T. Young
- Ocean and Earth Science, National Oceanography Centre, University of Southampton, Southampton SO14 3ZH, UK
- Grant Institute, School of GeoSciences, University of Edinburgh, The King's Buildings, Edinburgh EH9 3FE, UK
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Chen Z, Zhao W, Mo M, Zhou C, Liu G, Zeng Z, Wu X, Xue Q. Architecture of modified silica resin coatings with various micro/nano patterns for fouling resistance: microstructure and antifouling performance. RSC Adv 2015. [DOI: 10.1039/c5ra17179b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of modified silicone surfaces with different textures, shapes and surface roughnesses were fabricated. Those with sizes smaller than algae were effective in inhibiting N. closterium, P. tricornutum and Chlorella with reduction ratios of 49%, 75% and 81%.
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Affiliation(s)
- Zifei Chen
- Key Laboratory of Marine Materials and Related Technologies
- Zhejiang Key Laboratory of Marine Materials and Protective Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
| | - Wenjie Zhao
- Key Laboratory of Marine Materials and Related Technologies
- Zhejiang Key Laboratory of Marine Materials and Protective Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
| | - Mengting Mo
- Key Laboratory of Marine Materials and Related Technologies
- Zhejiang Key Laboratory of Marine Materials and Protective Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
| | - Chengxu Zhou
- School of Marine Sciences
- Ningbo University
- Ningbo
- China
| | - Gang Liu
- Key Laboratory of Marine Materials and Related Technologies
- Zhejiang Key Laboratory of Marine Materials and Protective Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
| | - Zhixiang Zeng
- Key Laboratory of Marine Materials and Related Technologies
- Zhejiang Key Laboratory of Marine Materials and Protective Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
| | - Xuedong Wu
- Key Laboratory of Marine Materials and Related Technologies
- Zhejiang Key Laboratory of Marine Materials and Protective Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
| | - Qunji Xue
- Key Laboratory of Marine Materials and Related Technologies
- Zhejiang Key Laboratory of Marine Materials and Protective Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
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Schoch PK, Genzer J. Adsorption of multiple spherical particles onto sinusoidally corrugated substrates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:9407-9417. [PMID: 25045793 DOI: 10.1021/la502026g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We utilize a Monte Carlo simulation scheme based on the bond fluctuation model to simulate settlement of adhesive particles onto sinusoidally corrugated substrates. The particles are composed of a hard inner core with either an effective potential shell or a "soft" adhesive shell made of flexible arms attached to the particle surface. These chains adhere via either the effective potential shell or the sticky chain ends to the surface via pairwise nonspecific interactions. This simulation model allows for multiple particles to settle onto each tested substrate to elucidate the behavior of the collective adhesive layer featuring multiparticle assembly. Particles move within a 3D lattice space and settle on the substrate due to attractive particle/substrate interactions. Once a single particle adheres to the substrate, a new particle is introduced into the lattice to begin a new settlement. Through this multiparticle settlement mode, we explore the interplay among the characteristics of the particles (i.e., size, interaction shell) and the substrates (i.e., wavelength and periodicity) as well as interparticle interactions. We report that the adhesion of particles with an effective interaction shell to the substrates is reduced dramatically when the particle size is smaller than the feature width of the periodic substrate. The settlement of particles with flexible hair on the sinusoidally corrugated substrates is more complex. Specifically, the presence of flexible polymeric hairs makes the particle settlement more likely to occur on nearly all substrates studied irrespective of the characteristics of the substrate.
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Affiliation(s)
- Phillip K Schoch
- Department of Chemical & Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27695, United States
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