1
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Kitchen G, Sun B, Omar MM, Eisape A, Kang SH. Self-limiting material growth triggered and tunable by force through piezocharge-induced mineralization. MATERIALS HORIZONS 2024. [PMID: 38984449 DOI: 10.1039/d4mh00498a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Controlling the growth of material is crucial in material processing for desired properties. Current approaches often involve sophisticated equipment for controlling precursors and monitoring material formation. Here we report a self-limiting material growth mechanism controlled by the experienced mechanical loading without the need for precise control over precursors or monitoring material growth. Material formation that reduces the driving force for growth is hypothesized to result in a saturation thickness that is dependent on the maximum driving force. Analytical relations based on the growth model are derived and verified using a piezoelectric substrate immersed in an electrolyte solution under fixed frequency cyclic loading to attract surrounding mineral ions to form mineral layers. Accumulating mineral layers decrease the driving force for further growth and the material eventually reaches a saturation thickness. This allows for loading force to control the saturation thickness of the self-limiting material growth. Experimental data supports the predicted exponential relations, offering guides to predict the saturation thickness and control the growth profile. The findings are envisioned to contribute to the fundamental understanding of the self-limiting material growth mechanism and could benefit a range of applications including coatings for orthopedic implants as well as marine surface and underwater vehicles.
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Affiliation(s)
- Grant Kitchen
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, 21218, USA
- Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, 21218, USA
| | - Bohan Sun
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, 21218, USA.
- Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, 21218, USA
| | - Mostafa M Omar
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, 21218, USA.
- Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, 21218, USA
| | - Adebayo Eisape
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, 21218, USA
- Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, 21218, USA
| | - Sung Hoon Kang
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, 21218, USA.
- Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, 21218, USA
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
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2
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Liu J, Sipponen MH. Ag-lignin hybrid nanoparticles for high-performance solar absorption in photothermal antibacterial chitosan films. iScience 2023; 26:108058. [PMID: 37854692 PMCID: PMC10579425 DOI: 10.1016/j.isci.2023.108058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/06/2023] [Accepted: 09/22/2023] [Indexed: 10/20/2023] Open
Abstract
There is an urgent need for antimicrobial films based on sustainable resources and production methods. In this study, we present a bio-based nanocomposite film composed of chitosan (∼60 wt %), lignin nanoparticles (LNPs, ∼40 wt %), a small amount of glutaraldehyde (1.5 wt %), and a trace level of silver nanoparticles (AgNPs, 0.072 wt %). The uniform dispersion with LNPs prevented aggregation of metallic silver, resulting in small (diameter 3.3 nm) AgNPs. The nanocomposite film absorbs 89% of radiation across the entire solar spectrum and exhibits a remarkable photothermally triggered antibacterial effect, which is further enhanced by the dark color of lignin. Under simulated solar light illumination, the nanocomposite films demonstrated a significant reduction in viable Escherichia coli count compared to control scenarios. The potential applications of these nanocomposites extend to sunlight-activated antimicrobial films and coatings, addressing the growing demand for sustainable and effective antimicrobial materials.
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Affiliation(s)
- Jinrong Liu
- Department of Materials and Environmental Chemistry, Stockholm University, 106 91 Stockholm, Sweden
| | - Mika H. Sipponen
- Department of Materials and Environmental Chemistry, Stockholm University, 106 91 Stockholm, Sweden
- Wallenberg Wood Science Center, Department of Materials and Environmental Chemistry, Stockholm University, 106 91 Stockholm, Sweden
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3
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Prudnikov E, Polishchuk I, Sand A, Hamad HA, Massad-Ivanir N, Segal E, Pokroy B. Self-assembled fatty acid crystalline coatings display superhydrophobic antimicrobial properties. Mater Today Bio 2022; 18:100516. [PMID: 36569590 PMCID: PMC9771733 DOI: 10.1016/j.mtbio.2022.100516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/05/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
Superhydrophobicity is a well-known wetting phenomenon found in numerous plants and insects. It is achieved by the combination of the surface's chemical properties and its surface roughness. Inspired by nature, numerous synthetic superhydrophobic surfaces have been developed for various applications. Designated surface coating is one of the fabrication routes to achieve the superhydrophobicity. Yet, many of these coatings, such as fluorine-based formulations, may pose severe health and environmental risks, limiting their applicability. Herein, we present a new family of superhydrophobic coatings comprised of natural saturated fatty acids, which are not only a part of our daily diet, but can be produced from renewable feedstock, providing a safe and sustainable alternative to the existing state-of-the-art. These crystalline coatings are readily fabricated via single-step deposition routes, namely thermal deposition or spray-coating. The fatty acids self-assemble into highly hierarchical crystalline structures exhibiting a water contact angle of ∼165° and contact angle hysteresis lower than 6°, while their properties and morphology depend on the specific fatty acid used as well as on the deposition technique. Moreover, the fatty acid coatings demonstrate excellent thermal stability. Importantly, this new family of coatings displays excellent anti-biofouling and antimicrobial properties against Escherichia coli and Listeria innocua, used as relevant model Gram-negative and Gram-positive bacteria, respectively. These multifunctional coatings hold immense potential for application in numerous fields, ranging from food safety to biomedicine, offering sustainable and safe solutions.
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Affiliation(s)
- Elena Prudnikov
- Department of Materials Science and Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
| | - Iryna Polishchuk
- Department of Materials Science and Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
| | - Andy Sand
- Faculty of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
| | - Hanan Abu Hamad
- Faculty of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
| | - Naama Massad-Ivanir
- Faculty of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
| | - Ester Segal
- Faculty of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel,Corresponding author.
| | - Boaz Pokroy
- Department of Materials Science and Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel,Corresponding author.
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4
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Manderfeld E, Thamaraiselvan C, Nunes Kleinberg M, Jusufagic L, Arnusch CJ, Rosenhahn A. Bacterial surface attachment and fouling assay on polymer and carbon surfaces using Rheinheimera sp. identified using bacteria community analysis of brackish water. BIOFOULING 2022; 38:940-951. [PMID: 36511186 DOI: 10.1080/08927014.2022.2153333] [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: 05/19/2022] [Revised: 11/14/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Biofouling on surfaces in contact with sea- or brackish water can severely impact the function of devices like reverse osmosis modules. Single species laboratory assays are frequently used to test new low fouling materials. The choice of bacterial strain is guided by the natural population present in the application of interest and decides on the predictive power of the results. In this work, the analysis of the bacterial community present in brackish water from Mashabei Sadeh, Israel was performed and Rheinheimera sp. was detected as a prominent microorganism. A Rheinheimera strain was selected to establish a short-term accumulation assay to probe initial bacterial attachment as well as biofilm growth to determine the biofilm-inhibiting properties of coatings. Both assays were applied to model coatings, and technically relevant polymers including laser-induced graphene. This strategy might be applied to other water sources to better predict the fouling propensity of new coatings.
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Affiliation(s)
- Emily Manderfeld
- Analytical Chemistry- Biointerfaces, Ruhr University Bochum, Faculty for Chemistry and Biochemistry, Bochum, Germany
| | - Chidambaram Thamaraiselvan
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
- Interdisciplinary Centre for Energy Research, Indian Institute of Science, Bengaluru, India
| | - Maurício Nunes Kleinberg
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
| | - Lejla Jusufagic
- Analytical Chemistry- Biointerfaces, Ruhr University Bochum, Faculty for Chemistry and Biochemistry, Bochum, Germany
| | - Christopher J Arnusch
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
| | - Axel Rosenhahn
- Analytical Chemistry- Biointerfaces, Ruhr University Bochum, Faculty for Chemistry and Biochemistry, Bochum, Germany
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5
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Kallas P, Valen H, Hulander M, Gadegaard N, Stormonth-Darling J, O'Reilly P, Thiede B, Andersson M, Haugen HJ. Protein-coated nanostructured surfaces affect the adhesion of Escherichia coli. NANOSCALE 2022; 14:7736-7746. [PMID: 35579413 PMCID: PMC9135173 DOI: 10.1039/d2nr00976e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/20/2022] [Indexed: 06/15/2023]
Abstract
Developing new implant surfaces with anti-adhesion bacterial properties used for medical devices remains a challenge. Here we describe a novel study investigating nanotopography influences on bacterial adhesion on surfaces with controlled interspatial nanopillar distances. The surfaces were coated with proteins (fibrinogen, collagen, serum and saliva) prior to E. coli-WT adhesion under flow conditions. PiFM provided chemical mapping and showed that proteins adsorbed both between and onto the nanopillars with a preference for areas between the nanopillars. E. coli-WT adhered least to protein-coated areas with low surface nanopillar coverage, most to surfaces coated with saliva, while human serum led to the lowest adhesion. Protein-coated nanostructured surfaces affected the adhesion of E. coli-WT.
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Affiliation(s)
- Pawel Kallas
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0455 Oslo, Norway.
| | - Håkon Valen
- Nordic Institute of Dental Materials, 0855 Oslo, Norway
| | - Mats Hulander
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 58 Göteborg, Sweden
| | - Nikolaj Gadegaard
- James Watt School of Engineering, University of Glasgow, G12 8QQ Glasgow, UK
| | | | | | - Bernd Thiede
- Department of Biosciences, The Faculty of Mathematics and Natural Sciences, University of Oslo, 0371 Oslo, Norway
| | - Martin Andersson
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 58 Göteborg, Sweden
| | - Håvard Jostein Haugen
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0455 Oslo, Norway.
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6
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Zhang H, Wang W, Wei L, Wu D, Cheng J, Gao F. Fabrication of PAMAM antimicrobial monolayer via UV induced grafting on the surface of polyethylene terephthalate. Colloids Surf B Biointerfaces 2021; 201:111601. [PMID: 33618083 DOI: 10.1016/j.colsurfb.2021.111601] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 11/18/2022]
Abstract
Poly (amidoamine) (PAMAM) with 3rd and 5th generation was covalently grafted as the contact active biocidal agent on the surface of polyethylene terephthalate (PET) with the help of UV induced carbene chemistry (PAMAM-g-PET). The graft density and the surface roughness were controlled by turning UV irradiation time and the PAMAM generation. The PAMAM graft monolayer was characterized via the contact angle, XPS, nanoIR, SEM and AFM. The antibacterial ability of PAMAM-g-PET was evaluated ex-vivo with the help of laser scanning confocal microscope (CLSM), and the results indicated that the decorated PET was able to kill both S. aureus and E. coli in the aqueous environment. Increasing the surface graft concentration and using the dendrimer with higher generation enhanced the lethality towards the bacterial. The decorated film was still able to kill the contact bacterial strain when the cationic primary amine groups were shielded by acetyl chloride, however, the bacterial in the suspension was hardly affected in this case. The un-selectivity and instantaneity of carbene chemistry endowed this grafting strategy the potential to be extended to other organic substances.
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Affiliation(s)
- Haobo Zhang
- School of Material Science and Engineering, Beijing University of Chemistry Technology, North Third Ring Road 15, Chaoyang District, Beijing, 100029, China.
| | - Weihan Wang
- School of Material Science and Engineering, Beijing University of Chemistry Technology, North Third Ring Road 15, Chaoyang District, Beijing, 100029, China.
| | - Lilong Wei
- China-Japan Friendship Hospital, Yinghuayuan North Street 2, Chaoyang District, Beijing, 100029, China.
| | - Dezhen Wu
- School of Material Science and Engineering, Beijing University of Chemistry Technology, North Third Ring Road 15, Chaoyang District, Beijing, 100029, China.
| | - Jue Cheng
- School of Material Science and Engineering, Beijing University of Chemistry Technology, North Third Ring Road 15, Chaoyang District, Beijing, 100029, China.
| | - Feng Gao
- School of Material Science and Engineering, Beijing University of Chemistry Technology, North Third Ring Road 15, Chaoyang District, Beijing, 100029, China.
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7
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8
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Hang T, Wu J, Xiao S, Li B, Li H, Yang C, Yang C, Hu N, Xu Y, Zhang Y, Xie X. Anti-biofouling NH 3 gas sensor based on reentrant thorny ZnO/graphene hybrid nanowalls. MICROSYSTEMS & NANOENGINEERING 2020; 6:41. [PMID: 34567654 PMCID: PMC8433158 DOI: 10.1038/s41378-020-0151-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 02/23/2020] [Accepted: 03/03/2020] [Indexed: 05/19/2023]
Abstract
Since toxic gas leakage may cause ecological environmental problems and even life-threatening damage, effective monitoring of toxic gas is of great importance and subject to increasing demand. However, complicated environmental factors, as well as various coexisting interferences can easily affect the sensitivity and selectivity of gas sensors, hindering their performance. Recent reports have successfully demonstrated the development of hierarchical nanostructures with desirable self-cleaning properties, yet gas sensors that can resist contamination have rarely been realized. Here, we developed a reentrant thorny ZnO/graphene hybrid nanowall structure that simultaneously repels liquid contamination and possesses NH3 gas sensing properties. The unique reentrant and hierarchical structure, featuring an interconnected vertical graphene nanowall framework with numerous ZnO nanospikes branched on the top nanowall, is highly repellent to liquids, even biofluids with low surface tension. The hierarchical structure consisting of gas sensing graphene and ZnO can be successfully applied as an NH3 gas sensor at room temperature, exhibiting not only excellent sensitivity, selectivity, and repeatability, but also outstanding stability even after bacterial contamination. This study provides a versatile method for fabricating reentrant and hierarchical structures with excellent liquid repellency, and offers a promising method for designing reliable gas sensors with anti-biofouling properties.
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Affiliation(s)
- Tian Hang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou, 510006 China
| | - Jiangming Wu
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou, 510006 China
| | - Shuai Xiao
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou, 510006 China
| | - Baohong Li
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou, 510006 China
| | - Hongbo Li
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou, 510006 China
| | - Chengduan Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou, 510006 China
| | - Cheng Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou, 510006 China
| | - Ning Hu
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou, 510006 China
| | - Yonghang Xu
- School of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 China
| | - Yu Zhang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou, 510006 China
| | - Xi Xie
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou, 510006 China
- The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080 China
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9
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Wang T, Huang L, Liu Y, Li X, Liu C, Handschuh-Wang S, Xu Y, Zhao Y, Tang Y. Robust Biomimetic Hierarchical Diamond Architecture with a Self-Cleaning, Antibacterial, and Antibiofouling Surface. ACS APPLIED MATERIALS & INTERFACES 2020; 12:24432-24441. [PMID: 32342682 DOI: 10.1021/acsami.0c02460] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Biofouling is a worldwide problem from healthcare to marine exploration. Aggressive biofouling, wear, and corrosion lead to severe deterioration in function and durability. Here, micro- and nanostructured hierarchical diamond films mimicking the morphology of plant leaves were developed to simultaneously achieve superhydrophobicity, antibacterial efficacy, and marine antibiofouling, combined with mechanical and chemical robustness. These coatings were designed and successfully constructed on various commercial substrates, such as titanium alloys, silicon, and quartz glass via a chemical vapor deposition process. The unique surface structure of diamond films reduced bacteria attachment by 90-99%. In the marine environment, these biomimetic diamond films significantly reduced more than 95% adhesion of green algae. The structured diamond films retained mechanical robustness, superhydrophobicity, and antibacterial efficacy under high abrasion and corrosive conditions, exhibiting at least 20 times enhanced wear resistance than the bare commercial substrates even after long-term immersion in seawater.
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Affiliation(s)
- Tao Wang
- Functional Thin Films Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Lei Huang
- Functional Thin Films Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yuzhi Liu
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xingxing Li
- Functional Thin Films Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Chunhua Liu
- Centre for Brain Connectome and Behavior, the Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Stephan Handschuh-Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Yang Xu
- Functional Thin Films Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Ying Zhao
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yongbing Tang
- Functional Thin Films Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
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10
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Shemesh M, Ostrov I. Role of Bacillus species in biofilm persistence and emerging antibiofilm strategies in the dairy industry. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:2327-2336. [PMID: 31975392 DOI: 10.1002/jsfa.10285] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/28/2019] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Biofilm-forming Bacillus species are often involved in persistent contamination and spoilage of dairy products. They therefore present a major microbiological challenge in the field of dairy food quality and safety. Due to their substantial physiological versatility, Bacillus species can survive in various parts of dairy manufacturing plants, leading to a high risk of product spoilage and potential dissemination of foodborne diseases. Furthermore, biofilm and heat-resistant spore formation make these bacteria challenging to eliminate. Thus, some strategies have been employed to remove, prevent, or delay the formation of Bacillus biofilms in the dairy industry, but with limited success. Lack of understanding of the Bacillus biofilm structure and behavior in conditions relevant to dairy-associated environments could partially account for this situation. The current paper reviews dairy-associated biofilm formation by Bacillus species, with particular attention to the role of biofilm in Bacillus species adaptation and survival in a dairy processing environment. Relevant model systems are discussed for the development of novel antimicrobial approaches to improve the quality of dairy food. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Moshe Shemesh
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization (ARO), The Volcani Center, Rishon LeZion, Israel
| | - Ievgeniia Ostrov
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization (ARO), The Volcani Center, Rishon LeZion, Israel
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11
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Ripa R, Shen AQ, Funari R. Detecting Escherichia coli Biofilm Development Stages on Gold and Titanium by Quartz Crystal Microbalance. ACS OMEGA 2020; 5:2295-2302. [PMID: 32064391 PMCID: PMC7017401 DOI: 10.1021/acsomega.9b03540] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 12/26/2019] [Indexed: 05/03/2023]
Abstract
Bacterial biofilms are responsible for persistent infections and biofouling, raising serious concerns in both medical and industrial processes. These motivations underpin the need to develop methodologies to study the complex biological structures of biofilms and prevent their formation on medical implants, tools, and industrial apparatuses. Here, we report the detailed comparison of Escherichia coli biofilm development stages (adhesion, maturation, and dispersion) on gold and titanium surfaces by monitoring the changes in both frequency and dissipation of a quartz crystal microbalance (QCM) device, a cheap and reliable microgravimetric sensor which allows the real-time and label-free characterization of various stages of biofilm development. Although gold is the most common electrode material used for QCM sensors, the titanium electrode is also readily available for QCM sensors; thus, QCM sensors with different metal electrodes serve as a simple platform to probe how pathogens interact with different metal substrates. The QCM outcomes are further confirmed by atomic force microscopy and crystal violet staining, thus validating the effectiveness of this surface sensitive sensor for microbial biofilm research. Moreover, because QCM technology can easily modify the substrate types and coatings, QCM sensors also provide well-controlled experimental conditions to study antimicrobial surface treatments and eradication procedures, even on mature biofilms.
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Affiliation(s)
- Rosa Ripa
- Micro/Bio/Nanofluidics Unit, Okinawa Institute of Science and Technology Graduate
University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
| | - Amy Q. Shen
- Micro/Bio/Nanofluidics Unit, Okinawa Institute of Science and Technology Graduate
University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
| | - Riccardo Funari
- Micro/Bio/Nanofluidics Unit, Okinawa Institute of Science and Technology Graduate
University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
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12
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Pinchasik BE, Schönfeld F, Kappl M, Butt HJ. Bubbles nucleating on superhydrophobic micropillar arrays under flow. SOFT MATTER 2019; 15:8175-8183. [PMID: 31596303 DOI: 10.1039/c9sm01224a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
When a supersaturated aqueous solution flows over a microstructured, hydrophobic surface, bubbles tend to nucleate. Here, we control heterogeneous nucleation of gas bubbles from supersaturated CO2 solution. By designing the shape, size, and arrangement of hydrophobic micropillars and by adjusting the flow we obtain uniform nucleation patterns. It is possible to selectively turn nucleation on and off. We use laser scanning confocal microscopy to resolve nucleation in early stages at the micropillar-substrate intersection. Numerical simulations show a correlation between minute pressure drops behind micropillars and nucleation sites. Bubbles nucleate uniformly behind pillars of the same size. The flow profile further contributes to the uniform growth of the bubbles. We control heterogeneous nucleation by varying micropillar geometry or size, flow direction and rate. While nucleation behind square pillars is independent of the flow direction, nucleation behind round micropillars is coupled with the direction. Nucleation behind triangular micropillars is bifurcated. These observations pave the way for the replenishment of the gas layer entrapped in between hydrophobic surface features, needed for superhydrophobicity.
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Affiliation(s)
- Bat-El Pinchasik
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany and Tel-Aviv University, School of Mechanical Engineering, Faculty of Engineering, Tel-Aviv, Israel.
| | | | - Michael Kappl
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Hans-Jürgen Butt
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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13
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Ostrov I, Polishchuk I, Shemesh M, Pokroy B. Superhydrophobic Wax Coatings for Prevention of Biofilm Establishment in Dairy Food. ACS APPLIED BIO MATERIALS 2019; 2:4932-4940. [DOI: 10.1021/acsabm.9b00674] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ievgeniia Ostrov
- Department of Food Sciences, Institute of Postharvest and Food Sciences, Agricultural Research Organization, The Volcani Center, Rishon LeZion 7505101, Israel
- Institute of Dental Sciences, Hebrew University−Hadassah Medical School, Jerusalem 91120, Israel
| | - Iryna Polishchuk
- Department of Materials Science and Engineering, Technion−Israel Institute of Technology, Haifa 3200003, Israel
| | - Moshe Shemesh
- Department of Food Sciences, Institute of Postharvest and Food Sciences, Agricultural Research Organization, The Volcani Center, Rishon LeZion 7505101, Israel
| | - Boaz Pokroy
- Department of Materials Science and Engineering, Technion−Israel Institute of Technology, Haifa 3200003, Israel
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14
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Bolotsky A, Butler D, Dong C, Gerace K, Glavin NR, Muratore C, Robinson JA, Ebrahimi A. Two-Dimensional Materials in Biosensing and Healthcare: From In Vitro Diagnostics to Optogenetics and Beyond. ACS NANO 2019; 13:9781-9810. [PMID: 31430131 DOI: 10.1021/acsnano.9b03632] [Citation(s) in RCA: 146] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Since the isolation of graphene in 2004, there has been an exponentially growing number of reports on layered two-dimensional (2D) materials for applications ranging from protective coatings to biochemical sensing. Due to the exceptional, and often tunable, electrical, optical, electrochemical, and physical properties of these materials, they can serve as the active sensing element or a supporting substrate for diverse healthcare applications. In this review, we provide a survey of the recent reports on the applications of 2D materials in biosensing and other emerging healthcare areas, ranging from wearable technologies to optogenetics to neural interfacing. Specifically, this review provides (i) a holistic evaluation of relevant material properties across a wide range of 2D systems, (ii) a comparison of 2D material-based biosensors to the state-of-the-art, (iii) relevant material synthesis approaches specifically reported for healthcare applications, and (iv) the technological considerations to facilitate mass production and commercialization.
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Affiliation(s)
| | | | - Chengye Dong
- State Key Lab of Electrical Insulation and Power Equipment , Xi'an Jiaotong University , Xi'an , Shaanxi 710049 , People's Republic of China
| | | | - Nicholas R Glavin
- Materials and Manufacturing Directorate , Air Force Research Laboratory , WPAFB , Ohio 45433 , United States
| | - Christopher Muratore
- Department of Chemical and Materials Engineering , University of Dayton , Dayton , Ohio 45469 , United States
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15
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Xie C. Bio‐inspired nanofunctionalisation of biomaterial surfaces: a review. BIOSURFACE AND BIOTRIBOLOGY 2019. [DOI: 10.1049/bsbt.2019.0009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Chaoming Xie
- Key Laboratory of Advanced Technologies of MaterialsMinistry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduSichuan610031People's Republic of China
- School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengduSichuan610031People's Republic of China
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16
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Zarzuela R, Carbú M, Gil MLA, Cantoral JM, Mosquera MJ. Ormosils loaded with SiO 2 nanoparticles functionalized with Ag as multifunctional superhydrophobic/biocidal/consolidant treatments for buildings conservation. NANOTECHNOLOGY 2019; 30:345701. [PMID: 31067526 DOI: 10.1088/1361-6528/ab1ff0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The alarming increase of pollution has significantly increased buildings maintenance. Nowadays, the economic figures associated to repairing activities are even more relevant than those corresponding to new construction works, especially on heritage buildings. Since the degradation of building materials is the result of a complex combination of physical, chemical and biological agents, the development of multifunctional protective treatments remains a significant challenge. We report a simple strategy to produce a versatile biocidal/superhydrophobic/consolidant treatment by incorporating biocidal Ag nanoparticles (AgNPs) grafted to functionalized SiO2NPs into a silica sol, which can be applied by simple procedures such as spraying. The use of an Ag-SiO2 coupling agent increases biocidal effectiveness up to >90% values due to: (1) an increase of the AgNPs stability; (2) a hierarchical roughness due to the formation of Ag/SiO2NPs clusters; and (3) an enhanced contact with the cell walls. In addition, the synergistic effect allows for an easier removal of the dead cells, increasing the durability of the treatment.
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Affiliation(s)
- Rafael Zarzuela
- TEP-243 Nanomaterials Group. Department of Physical-Chemistry, Faculty of Sciences, Universidad de Cadiz, E-11510 Puerto Real, Spain
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17
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Ghasemlou M, Daver F, Ivanova EP, Rhim JW, Adhikari B. Switchable Dual-Function and Bioresponsive Materials to Control Bacterial Infections. ACS APPLIED MATERIALS & INTERFACES 2019; 11:22897-22914. [PMID: 31180196 DOI: 10.1021/acsami.9b05901] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The colonization of undesired bacteria on the surface of devices used in biomedical and clinical applications has become a persistent problem. Different types of single-function (cell resistance or bactericidal) bioresponsive materials have been developed to cope with this problem. Even though these materials meet the basic requirements of many biomedical and clinical applications, dual-function (cell resistance and biocidal) bioresponsive materials with superior design and function could be better suited for these applications. The past few years have witnessed the emergence of a new class of dual-function materials that can reversibly switch between cell-resistance and biocidal functions in response to external stimuli. These materials are finding increased applications in biomedical devices, tissue engineering, and drug-delivery systems. This review highlights the recent advances in design, structure, and fabrication of dual-function bioresponsive materials and discusses translational challenges and future prospects for research involving these materials.
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Affiliation(s)
| | | | - Elena P Ivanova
- School of Science , RMIT University , Melbourne VIC 3000 , Australia
| | - Jong-Whan Rhim
- Center for Humanities and Sciences, Department of Food and Nutrition, Bionanocomposite Research Center , Kyung Hee University , 26 Kyungheedae-ro, Dongdaemun-gu , Seoul 02447 , Republic of Korea
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18
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Friedlander A, Nir S, Reches M, Shemesh M. Preventing Biofilm Formation by Dairy-Associated Bacteria Using Peptide-Coated Surfaces. Front Microbiol 2019; 10:1405. [PMID: 31297098 PMCID: PMC6608603 DOI: 10.3389/fmicb.2019.01405] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 06/04/2019] [Indexed: 01/24/2023] Open
Abstract
Biofilm-forming bacteria, which colonize the surfaces of equipment in the dairy industry, may adversely affect the safety and quality of the milk and its products. Despite numerous efforts to combat biofilm formation, there is still no effective technological means to thoroughly solve the biofilm problem in the dairy industry. Here, we introduced peptide-based coating in order to modify the physical properties of the stainless steel surface by affecting its availability for bacterial adhesion. We found that the coated surface displays a notable decrease in the ability of bacterial cells to attach and to subsequently form biofilm by Gram-positive Bacillus licheniformis and Gram-negative Pseudomonas aeruginosa. Furthermore, the coated surface retained its anti-biofilm ability following its exposure to raw milk. Importantly, the modified surface did not affect the milk coagulation process or its nutritious properties and quality. Overall, this anti-biofilm approach may serve as an attractive solution for the dairy industry in its struggle against bacterial contamination.
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Affiliation(s)
- Alon Friedlander
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization, The Volcani Center, Rishon LeZion, Israel
- Institute of Dental Sciences, The Hebrew University-Hadassah, Jerusalem, Israel
| | - Sivan Nir
- The Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Meital Reches
- The Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Moshe Shemesh
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization, The Volcani Center, Rishon LeZion, Israel
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19
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Nir S, Zanuy D, Zada T, Agazani O, Aleman C, Shalev DE, Reches M. Tailoring the self-assembly of a tripeptide for the formation of antimicrobial surfaces. NANOSCALE 2019; 11:8752-8759. [PMID: 30778487 DOI: 10.1039/c8nr10043h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The accumulation of bacteria on surfaces is currently one of the greatest concerns for the management of proper healthcare systems, water and energy. Here, we describe the mechanism by which a single peptide forms two pH-dependent supramolecular particles that resist bacterial contamination. By using NMR and molecular dynamics (MD), we determined the structures of the peptide monomers and showed the forces directing the self-assembly of each structure under different conditions. These peptide assemblies change the characteristics of bare glass and confer it with the ability to prevent biofilm formation. Furthermore, they can adsorb and release active compounds as demonstrated with an anticancer drug, antibiotic and enzyme. This synergism and the detailed understanding of the processes are necessary for developing new sterile surfaces for healthcare systems, water purification devices, food packaging or any environment that suffers from biocontamination.
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Affiliation(s)
- Sivan Nir
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904. Israel.
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20
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Sun D, Böhringer KF. Self-Cleaning: From Bio-Inspired Surface Modification to MEMS/Microfluidics System Integration. MICROMACHINES 2019; 10:E101. [PMID: 30704097 PMCID: PMC6412494 DOI: 10.3390/mi10020101] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/22/2019] [Accepted: 01/28/2019] [Indexed: 11/16/2022]
Abstract
This review focuses on self-cleaning surfaces, from passive bio-inspired surface modification including superhydrophobic, superomniphobic, and superhydrophilic surfaces, to active micro-electro-mechanical systems (MEMS) and digital microfluidic systems. We describe models and designs for nature-inspired self-cleaning schemes as well as novel engineering approaches, and we discuss examples of how MEMS/microfluidic systems integrate with functional surfaces to dislodge dust or undesired liquid residues. Meanwhile, we also examine "waterless" surface cleaning systems including electrodynamic screens and gecko seta-inspired tapes. The paper summarizes the state of the art in self-cleaning surfaces, introduces available cleaning mechanisms, describes established fabrication processes and provides practical application examples.
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Affiliation(s)
- Di Sun
- Department of Electrical & Computer Engineering, University of Washington, Seattle, WA 98105, USA.
| | - Karl F Böhringer
- Department of Electrical & Computer Engineering, University of Washington, Seattle, WA 98105, USA.
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21
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Cattò C, Secundo F, James G, Villa F, Cappitelli F. α-Chymotrypsin Immobilized on a Low-Density Polyethylene Surface Successfully Weakens Escherichia coli Biofilm Formation. Int J Mol Sci 2018; 19:E4003. [PMID: 30545074 PMCID: PMC6321288 DOI: 10.3390/ijms19124003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 11/23/2018] [Accepted: 12/10/2018] [Indexed: 12/25/2022] Open
Abstract
The protease α-chymotrypsin (α-CT) was covalently immobilized on a low-density polyethylene (LDPE) surface, providing a new non-leaching material (LDPE-α-CT) able to preserve surfaces from biofilm growth over a long working timescale. The immobilized enzyme showed a transesterification activity of 1.24 nmol/h, confirming that the immobilization protocol did not negatively affect α-CT activity. Plate count viability assays, as well as confocal laser scanner microscopy (CLSM) analysis, showed that LDPE-α-CT significantly impacts Escherichia coli biofilm formation by (i) reducing the number of adhered cells (-70.7 ± 5.0%); (ii) significantly affecting biofilm thickness (-81.8 ± 16.7%), roughness (-13.8 ± 2.8%), substratum coverage (-63.1 ± 1.8%), and surface to bio-volume ratio (+7.1 ± 0.2-fold); and (iii) decreasing the matrix polysaccharide bio-volume (80.2 ± 23.2%). Additionally, CLSM images showed a destabilized biofilm with many cells dispersing from it. Notably, biofilm stained for live and dead cells confirmed that the reduction in the biomass was achieved by a mechanism that did not affect bacterial viability, reducing the chances for the evolution of resistant strains.
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Affiliation(s)
- Cristina Cattò
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milano 20133, Italy.
| | - Francesco Secundo
- Institute of Chemistry of Molecular Recognition, National Research Council, Milano 20131, Italy.
| | - Garth James
- Center for Biofilm Engineering, Montana State University, Bozeman, MT 59717, USA.
| | - Federica Villa
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milano 20133, Italy.
| | - Francesca Cappitelli
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milano 20133, Italy.
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22
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Rossi GAM, Aguilar CEG, Silva HO, Vidal AMC. Bacillus cereus group: genetic aspects related to food safety and dairy processing. ARQUIVOS DO INSTITUTO BIOLÓGICO 2018. [DOI: 10.1590/1808-1657000232017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
ABSTRACT: Bacillus cereus group includes not pathogenic and high pathogenic species. They are considered as a risk to public health due to foodborne diseases and as an important cause of economic losses to industries due to production of spoilage enzymes. Some researches have been performed in order to assess the possible factors that contribute to put public health into risk because of consumption of food contaminated with viable cells or toxins which have complex mechanisms of production. The control of these bacteria in food is difficult because they are resistant to several processes used in industries. Thus, in this way, this review focused on highlighting the risk due to toxins production by bacteria from B. cereus group in food and the consequences for food safety and dairy industries.
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23
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Pokrowiecki R. The paradigm shift for drug delivery systems for oral and maxillofacial implants. Drug Deliv 2018; 25:1504-1515. [PMID: 29968496 PMCID: PMC6058499 DOI: 10.1080/10717544.2018.1477855] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 05/10/2018] [Accepted: 05/14/2018] [Indexed: 12/16/2022] Open
Abstract
Along with the development of nanotechnological strategies for biomaterials associated with the prevention of infections, a myriad of clinically unproven techniques have been described to date. In this work, the aim was to perform a critical analysis of the literature available concerning antibacterial biomaterials for oral implantology and to provide a practical derivation for such a purpose. As anti-adhesive strategies may affect osseointegration, they should no longer be recommended for inclusion in this class of biomaterials, despite promising results in biomedical engineering for other, non-bone load bearing organs. Targeted, antibacterial drug delivery is most likely desirable in the case of intraosseous implants. Interfering factors such as the oral cavity environment, saliva, the bacterial microbiome, as well as, the characteristics of the alveolar mucosa and peri-implant space must be taken into account when calculating the local pharmacokinetics for antibacterial coatings. Effective release is crucial for tailoring antibacterial implant longevity providing minimal inhibitory concentration (MIC) for the desired amount of time, which for oral implants, should be at least the cumulative time for the osseointegration period and functional loading period within the tissues. These parameters may differ between the implant type and its anatomical site. Also, the functional drug concentration in the peri-implant space should be calculated as the amount of the drug released from the implant surface including the concentration of the drug inactivated by biological fluids of the peri-implant space or saliva flow throughout the effective release time.
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Affiliation(s)
- Rafal Pokrowiecki
- Department of Otolaryngology and Ophtalmology, Prof. Stanislaw Popowski Voivoid Children Hospital Department of Head and Neck Surgery – Maxillofacial Surgery, Zołnierska, Olsztyn, Poland
- Private Dental Practice, Poland
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24
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Boguslavsky Y, Shemesh M, Friedlander A, Rutenberg R, Filossof AM, Buslovich A, Poverenov E. Eliminating the Need for Biocidal Agents in Anti-Biofouling Polymers by Applying Grafted Nanosilica Instead. ACS OMEGA 2018; 3:12437-12445. [PMID: 31457975 PMCID: PMC6645711 DOI: 10.1021/acsomega.8b01438] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 08/22/2018] [Indexed: 05/07/2023]
Abstract
A nondestructive one-step approach was applied for grafting biocide-free monodispersed silica nanoparticles (SNPs) with a diameter of 30 ± 10 nm on polystyrene, polyethylene, and polyvinyl chloride surfaces. The prepared surfaces were comprehensively characterized using spectroscopic (Fourier transform infrared attenuated total reflection, ultraviolet-visible, and X-ray photoelectron spectroscopy) and microscopic (high-resolution scanning electron microscopy and atomic force microscopy) methods. The modified polymers were found to maintain their original mechanical and physical properties, while their nanoroughness on the other hand had risen by 1.6-2.7 times because of SNP grafting. The SNP-grafted surfaces displayed anti-biofouling properties, resulting in a significant reduction in the attached Gram-positive Bacillus licheniformis or Gram-negative Pseudomonas aeruginosa bacteria compared to their nongrafted counterparts. Confocal laser scanning microscopy and scanning electron microscopy studies have confirmed that bacterial cells could not successfully adhere onto the SNP-grafted polymer films regardless of the polymer type, and their biofilm formation was therefore damaged. The presented facile and straightforward protocol allows eliminating the need for biocidal agents and resorts to grafted nanosilica instead. This strategy may serve as a feasible and safe platform for the development of sustainable anti-biofouling surfaces in biomedical devices; food, water, and air treatment systems; and industrial equipment.
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Affiliation(s)
- Yonit Boguslavsky
- Department
of Food Quality and Safety, Agricultural
Research Organization, The Volcani Center, Rishon LeZion 75288, Israel
| | - Moshe Shemesh
- Department
of Food Quality and Safety, Agricultural
Research Organization, The Volcani Center, Rishon LeZion 75288, Israel
| | - Alon Friedlander
- Department
of Food Quality and Safety, Agricultural
Research Organization, The Volcani Center, Rishon LeZion 75288, Israel
- Biofilm
Research Laboratory, Hadassah School of Dental Medicine, The Hebrew University, POB 12272, Jerusalem 91120, Israel
| | - Roi Rutenberg
- Department
of Food Quality and Safety, Agricultural
Research Organization, The Volcani Center, Rishon LeZion 75288, Israel
- Institute
of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty
of Agriculture, Food and Environment, The
Hebrew University of Jerusalem, Rehovot 76100, Israel
| | - Anat Molad Filossof
- Department
of Food Quality and Safety, Agricultural
Research Organization, The Volcani Center, Rishon LeZion 75288, Israel
| | - Aviva Buslovich
- Department
of Food Quality and Safety, Agricultural
Research Organization, The Volcani Center, Rishon LeZion 75288, Israel
- Department
of Chemistry, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Elena Poverenov
- Department
of Food Quality and Safety, Agricultural
Research Organization, The Volcani Center, Rishon LeZion 75288, Israel
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25
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Rich BB, Pokroy B. A study on the wetting properties of broccoli leaf surfaces and their time dependent self-healing after mechanical damage. SOFT MATTER 2018; 14:7782-7792. [PMID: 30079427 DOI: 10.1039/c8sm01115j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Plants are protected from the elements by a complex hierarchical epicuticular wax layer which has inspired the creation of super-hydrophobic and self-cleaning surfaces. Although many studies have been conducted on different plant wax systems to determine the mechanisms of water repulsion hardly any have studied the recovery of the epicuticular wax layer. In the current study the wetting properties and crystallographic nature of the wax surface of Brassica oleracea var. italica (broccoli) has been studied, as well as the time-dependent recovery of the surface after mechanical damage. It was found that the surface of the broccoli leaves is not only super-repulsive and self-cleaning in regards to water but also in regards to glycerol and formamide, both of which have considerably lower surface tension values. Furthermore, it was shown that the surface properties do indeed recover after damage and that this recovery is multi-stepped and strongly dependent on the recovery of the roughness of the surface.
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Affiliation(s)
- Benjamin B Rich
- Department of Materials Science and Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel.
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26
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Elena P, Miri K. Formation of contact active antimicrobial surfaces by covalent grafting of quaternary ammonium compounds. Colloids Surf B Biointerfaces 2018; 169:195-205. [DOI: 10.1016/j.colsurfb.2018.04.065] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 04/24/2018] [Accepted: 04/29/2018] [Indexed: 12/13/2022]
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27
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Cattò C, James G, Villa F, Villa S, Cappitelli F. Zosteric acid and salicylic acid bound to a low density polyethylene surface successfully control bacterial biofilm formation. BIOFOULING 2018; 34:440-452. [PMID: 29726716 DOI: 10.1080/08927014.2018.1462342] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/27/2018] [Indexed: 06/08/2023]
Abstract
The active moieties of the anti-biofilm natural compounds zosteric (ZA) and salicylic (SA) acids have been covalently immobilized on a low density polyethylene (LDPE) surface. The grafting procedure provided new non-toxic eco-friendly materials (LDPE-CA and LDPE-SA) with anti-biofilm properties superior to the conventional biocide-based approaches and with features suitable for applications in challenging fields where the use of antimicrobial agents is limited. Microbiological investigation proved that LDPE-CA and LDPE-SA: (1) reduced Escherichia coli biofilm biomass by up to 61% with a mechanism that did not affect bacterial viability; (2) significantly affected biofilm morphology, decreasing biofilm thickness, roughness, substratum coverage, cell and matrix polysaccharide bio-volumes by >80% and increasing the surface to bio-volume ratio; (3) made the biofilm more susceptible to ampicillin and ethanol. Since no molecules were leached from the surface, they remained constantly effective and below the lethal level; therefore, the risk of inducing resistance was minimized.
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Affiliation(s)
- C Cattò
- a Department of Food Environmental and Nutritional Sciences , Università degli Studi di Milano , Milan , Italy
- b Center for Biofilm Engineering , Montana State University , Bozeman , MT , USA
| | - G James
- b Center for Biofilm Engineering , Montana State University , Bozeman , MT , USA
| | - F Villa
- a Department of Food Environmental and Nutritional Sciences , Università degli Studi di Milano , Milan , Italy
| | - S Villa
- c Department of Pharmaceutical Sciences , Università degli Studi di Milano , Milan , Italy
| | - F Cappitelli
- a Department of Food Environmental and Nutritional Sciences , Università degli Studi di Milano , Milan , Italy
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28
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Han J, Zhao S, Ma Z, Gao L, Liu H, Muhammad U, Lu Z, Lv F, Bie X. The antibacterial activity and modes of LI-F type antimicrobial peptides against Bacillus cereus in vitro. J Appl Microbiol 2018. [PMID: 28650559 DOI: 10.1111/jam.13526] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
AIMS LI-Fs are a family of highly potent cyclic lipodepsipeptide antibiotics with a broad antimicrobial spectrum (Gram-positive bacteria and fungi). In this study, LI-F-type antimicrobial peptides (AMP-jsa9) composing of LI-F03a, LI-F03b, LI-F04a, LI-F04b and LI-F05b were isolated from Paenibacillus polymyxa JSA-9. To better understand the antimicrobial mechanism of AMP-jsa9, the potency and action(s) of AMP-jsa9 against Bacillus cereus were examined. METHODS AND RESULTS Flow cytometry, confocal laser microscopy, scanning electron microscopy, transmission electron microscopy (TEM) and atomic force microscopy observation, as well as determination of peptidoglycan and cell wall-associated protein and other methods were used. The results indicate that AMP-jsa9 exhibits strong, broad-spectrum antimicrobial activity. Moreover, AMP-jsa9 targets the cell wall and membrane of B. cereus to impair membrane integrity, increase membrane permeability and enhance cytoplasm leakage (e.g. K+ , protein, nucleic acid). This leads to bacterial cells with irregular, withered and coarse surfaces. In addition, AMP-jsa9 is also able to bind to DNA and break down B. cereus biofilms. CONCLUSIONS In this study, the action mechanism of LI-Fs against B. cereus was clarified in details. SIGNIFICANCE AND IMPACT OF THE STUDY The results of this study provide a theoretical basis for utilizing AMP-jsa9 or similar analogues as natural and effective preservatives in the food and feed industries. These efforts could also stimulate research activities interested in understanding the specific effects of other antimicrobial agents.
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Affiliation(s)
- J Han
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Ministry of Agriculture of China, Nanjing, China
| | - S Zhao
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Ministry of Agriculture of China, Nanjing, China
| | - Z Ma
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Ministry of Agriculture of China, Nanjing, China
| | - L Gao
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Ministry of Agriculture of China, Nanjing, China
| | - H Liu
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Ministry of Agriculture of China, Nanjing, China
| | - U Muhammad
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Ministry of Agriculture of China, Nanjing, China
| | - Z Lu
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Ministry of Agriculture of China, Nanjing, China
| | - F Lv
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Ministry of Agriculture of China, Nanjing, China
| | - X Bie
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Ministry of Agriculture of China, Nanjing, China
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Morán G, Ramos-Chagas G, Hugelier S, Xie X, Boudjemaa R, Ruckebusch C, Sliwa M, Darmanin T, Gaucher A, Prim D, Godeau G, Amigoni S, Guittard F, Méallet-Renault R. Superhydrophobic polypyrene films to prevent Staphylococcus aureus and Pseudomonas aeruginosa biofilm adhesion on surfaces: high efficiency deciphered by fluorescence microscopy. Photochem Photobiol Sci 2018; 17:1023-1035. [DOI: 10.1039/c8pp00043c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Superhydrophobic fluorinated-polypyrene proved to be highly efficient to prevent biofilm adhesion.
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30
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Muthukumar H, Chandrasekaran NI, Naina Mohammed S, Pichiah S, Manickam M. Iron oxide nano-material: physicochemical traits and in vitro antibacterial propensity against multidrug resistant bacteria. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.09.014] [Citation(s) in RCA: 30] [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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31
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Zhang P, Lin L, Zang D, Guo X, Liu M. Designing Bioinspired Anti-Biofouling Surfaces based on a Superwettability Strategy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13. [PMID: 26917251 DOI: 10.1002/smll.201503334] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 12/28/2015] [Indexed: 05/02/2023]
Abstract
Anti-biofouling surfaces are of high importance owing to their crucial roles in biosensors, biomedical devices, food processing, the marine industry, etc. However, traditional anti-biofouling surfaces based on either the release of biocidal compounds or surface chemical/physical design cannot satisfy the practical demands when meeting real-world complex conditions. The outstanding performances of natural anti-biofouling surfaces motivate the development of new bioinspired anti-biofouling surfaces. Herein, a novel strategy is proposed for rationally designing bioinspired anti-biofouling surfaces based on superwettability. By utilizing the trapped air cushions or liquid layers, Lotus leaf inspired superhydrophobic surfaces, fish scales inspired underwater superoleophobic surfaces, and Nepenthes pitcher plants inspired omniphobic slippery surfaces have been successfully designed as anti-biofouling surfaces to effectively resist proteins, bacteria, cells, and marine organisms. It is believed that these novel superwettability-based anti-biofouling surfaces will bring a new era to both biomedical technology and the marine industry, and will greatly benefit human health and daily life in the near future.
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Affiliation(s)
- Pengchao Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial, Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
- International Research Institute for Multidisciplinary Science, Beihang University, Beijing, 100191, P. R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Ling Lin
- Engineering Research Center of Marine Biological Resource, Comprehensive Utilization, SOA, The Third Institute of Oceanography of the State Oceanic Administration, Xiamen, 361005, China
| | - Dongmian Zang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Xinglin Guo
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Mingjie Liu
- Key Laboratory of Bio-Inspired Smart Interfacial, Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
- International Research Institute for Multidisciplinary Science, Beihang University, Beijing, 100191, P. R. China
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Kirillova A, Marschelke C, Friedrichs J, Werner C, Synytska A. Hybrid Hairy Janus Particles as Building Blocks for Antibiofouling Surfaces. ACS APPLIED MATERIALS & INTERFACES 2016; 8:32591-32603. [PMID: 27933847 DOI: 10.1021/acsami.6b10588] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Herein, we report a new strategy for the design of antifouling surfaces by using hybrid hairy Janus particles. The amphiphilic Janus particles possess either a spherical or a plateletlike shape and have core-shell structures with an inorganic core and hydrophilic/hydrophobic polymeric shells. Subsequently, these bifunctional Janus particles enable the fabrication of surfaces with modularity in chemical composition and final surface topography, which possess antifouling properties. The antifouling and fouling-release capability of the composite Janus particle-based surfaces is investigated using the marine biofilm-forming bacteria Cobetia marina. The Janus particle-based coatings are robust and significantly reduce bacterial retention under both static and dynamic conditions independent of the particle geometry. The plateletlike (kaolinite-based) Janus particles represent a scalable system for the rational design of antifouling coatings as well as their large-scale production and application in the future.
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Affiliation(s)
- Alina Kirillova
- Leibniz-Institut für Polymerforschung Dresden e.V. , Hohe Strasse 6, 01069 Dresden, Germany
- Technische Universität Dresden , Fakultät Mathematik und Naturwissenschaften, 01062 Dresden, Germany
| | - Claudia Marschelke
- Leibniz-Institut für Polymerforschung Dresden e.V. , Hohe Strasse 6, 01069 Dresden, Germany
- Technische Universität Dresden , Fakultät Mathematik und Naturwissenschaften, 01062 Dresden, Germany
| | - Jens Friedrichs
- Leibniz-Institut für Polymerforschung Dresden e.V. , Hohe Strasse 6, 01069 Dresden, Germany
- Technische Universität Dresden , Fakultät Mathematik und Naturwissenschaften, 01062 Dresden, Germany
| | - Carsten Werner
- Leibniz-Institut für Polymerforschung Dresden e.V. , Hohe Strasse 6, 01069 Dresden, Germany
- Technische Universität Dresden , Fakultät Mathematik und Naturwissenschaften, 01062 Dresden, Germany
| | - Alla Synytska
- Leibniz-Institut für Polymerforschung Dresden e.V. , Hohe Strasse 6, 01069 Dresden, Germany
- Technische Universität Dresden , Fakultät Mathematik und Naturwissenschaften, 01062 Dresden, Germany
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Wang Z, Elimelech M, Lin S. Environmental Applications of Interfacial Materials with Special Wettability. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:2132-50. [PMID: 26829583 DOI: 10.1021/acs.est.5b04351] [Citation(s) in RCA: 154] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Interfacial materials with special wettability have become a burgeoning research area in materials science in the past decade. The unique surface properties of materials and interfaces generated by biomimetic approaches can be leveraged to develop effective solutions to challenging environmental problems. This critical review presents the concept, mechanisms, and fabrication techniques of interfacial materials with special wettability, and assesses the environmental applications of these materials for oil-water separation, membrane-based water purification and desalination, biofouling control, high performance vapor condensation, and atmospheric water collection. We also highlight the most promising properties of interfacial materials with special wettability that enable innovative environmental applications and discuss the practical challenges for large-scale implementation of these novel materials.
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Affiliation(s)
- Zhangxin Wang
- Department of Civil and Environmental Engineering, Vanderbilt University , Nashville, Tennessee 37235-1831, United States
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering, Yale University , New Haven, Connecticut 06520-8286, United States
| | - Shihong Lin
- Department of Civil and Environmental Engineering, Vanderbilt University , Nashville, Tennessee 37235-1831, United States
- Department of Chemical and Bimolecular Engineering, Vanderbilt University , Nashville, Tennessee 37235-1831, United States
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Nir S, Reches M. Bio-inspired antifouling approaches: the quest towards non-toxic and non-biocidal materials. Curr Opin Biotechnol 2016; 39:48-55. [PMID: 26773304 DOI: 10.1016/j.copbio.2015.12.012] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 12/19/2015] [Indexed: 12/18/2022]
Abstract
Biofouling is an undesirable process in which organisms and their by-products encrust a surface. Antifouling solutions are of great importance since biofouling has negative effects on numerous species, ecosystems, and areas including water treatment facilities, health-care systems, and marine devices. Many useful solutions have been developed in the last few decades. However, with the emergence of environmental issues, the search for new promising non-toxic materials has expanded. One approach tries to mimic natural antifouling surfaces and relies on mechanisms of action derived from nature. Since these materials are based on natural systems, they are mostly biocompatible and more efficient against complex fouling. In this review, we cover the latest advances in the field of antifouling materials. We specifically focus on biomaterials that are based on the chemical and physical behavior of biological systems.
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Affiliation(s)
- Sivan Nir
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Meital Reches
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
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Huang K, McLandsborough LA, Goddard JM. Adhesion and removal kinetics of Bacillus cereus biofilms on Ni-PTFE modified stainless steel. BIOFOULING 2016; 32:523-533. [PMID: 27020838 DOI: 10.1080/08927014.2016.1160284] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Biofilm control remains a challenge to food safety. A well-studied non-fouling coating involves codeposition of polytetrafluoroethylene (PTFE) during electroless plating. This coating has been reported to reduce foulant build-up during pasteurization, but opportunities remain in demonstrating its efficacy in inhibiting biofilm formation. Herein, the initial adhesion, biofilm formation, and removal kinetics of Bacillus cereus on Ni-PTFE-modified stainless steel (SS) are characterized. Coatings lowered the surface energy of SS and reduced biofilm formation by > 2 log CFU cm(-2). Characterization of the kinetics of biofilm removal during cleaning demonstrated improved cleanability on the Ni-PTFE coated steel. There was no evidence of biofilm after cleaning by either solution on the Ni-PTFE coated steel, whereas more than 3 log and 1 log CFU cm(-2) of bacteria remained on the native steel after cleaning with water and an alkaline cleaner, respectively. This work demonstrates the potential application of Ni-PTFE non-fouling coatings on SS to improve food safety by reducing biofilm formation and improving the cleaning efficiency of food processing equipment.
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Affiliation(s)
- Kang Huang
- a Department of Food Science , University of Massachusetts , Amherst, MA , USA
| | | | - Julie M Goddard
- a Department of Food Science , University of Massachusetts , Amherst, MA , USA
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Apostoleris H, Stefancich M, Lilliu S, Chiesa M. Sun-tracking optical element realized using thermally activated transparency-switching material. OPTICS EXPRESS 2015; 23:A930-A935. [PMID: 26367692 DOI: 10.1364/oe.23.00a930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present a proof of concept demonstration of a novel optical element: a light-responsive aperture that can track a moving light beam. The element is created using a thermally-activated transparency-switching material composed of paraffin wax and polydimethylsiloxane (PDMS). Illumination of the material with a focused beam causes the formation of a localized transparency at the focal spot location, due to local heating caused by absorption of a portion of the incident light. An application is proposed in a new design for a self-tracking solar collector.
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