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Nan Z, Floquet P, Combes D, Tendero C, Castelain M. Surface Conditioning Effects on Submerged Optical Sensors: A Comparative Study of Fused Silica, Titanium Dioxide, Aluminum Oxide, and Parylene C. SENSORS (BASEL, SWITZERLAND) 2023; 23:9546. [PMID: 38067919 PMCID: PMC10708880 DOI: 10.3390/s23239546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/17/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023]
Abstract
Optical sensors excel in performance but face efficacy challenges when submerged due to potential surface colonization, leading to signal deviation. This necessitates robust solutions for sustained accuracy. Protein and microorganism adsorption on solid surfaces is crucial in antibiofilm studies, contributing to conditioning film and biofilm formation. Most studies focus on surface characteristics (hydrophilicity, roughness, charge, and composition) individually for their adhesion impact. In this work, we tested four materials: silica, titanium dioxide, aluminum oxide, and parylene C. Bovine Serum Albumin (BSA) served as the biofouling conditioning model, assessed with X-ray photoelectron spectroscopy (XPS). Its effect on microorganism adhesion (modeled with functionalized microbeads) was quantified using a shear stress flow chamber. Surface features and adhesion properties were correlated via Principal Component Analysis (PCA). Protein adsorption is influenced by nanoscale roughness, hydrophilicity, and likely correlated with superficial electron distribution and bond nature. Conditioning films alter the surface interaction with microbeads, affecting hydrophilicity and local charge distribution. Silica shows a significant increase in microbead adhesion, while parylene C exhibits a moderate increase, and titanium dioxide shows reduced adhesion. Alumina demonstrates notable stability, with the conditioning film minimally impacting adhesion, which remains low.
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Affiliation(s)
- Zibin Nan
- TBI, Université de Toulouse, CNRS UMR5504, INRAe UMR792—INSA 135, avenue de Rangueil, 31055 Toulouse, France
| | - Pascal Floquet
- LGC, Université de Toulouse, CNRS, INPT, UPS—ENSIACET 4, allée Émile Monso, 31030 Toulouse, France;
| | - Didier Combes
- TBI, Université de Toulouse, CNRS UMR5504, INRAe UMR792—INSA 135, avenue de Rangueil, 31055 Toulouse, France
| | - Claire Tendero
- CIRIMAT, Université de Toulouse, CNRS, INPT, UPS—ENSIACET 4, allée Émile Monso, 31030 Toulouse, France;
| | - Mickaël Castelain
- TBI, Université de Toulouse, CNRS UMR5504, INRAe UMR792—INSA 135, avenue de Rangueil, 31055 Toulouse, France
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Moawad MN, El-Damhogy KA, Ghobashy MM, Radwan IM, Alabssawy AN. Fabrication of environmentally safe antifouling coatings using nano-MnO 2/cellulose nanofiber composite with BED/GMA irradiated by electron beam. Sci Rep 2023; 13:19289. [PMID: 37935757 PMCID: PMC10630369 DOI: 10.1038/s41598-023-46559-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/02/2023] [Indexed: 11/09/2023] Open
Abstract
Marine biofouling, undesirable growth of organisms on submerged surfaces, poses significant challenges in various industries and marine applications. The development of environmentally safe antifouling coatings employing nano-MnO2/cellulose nanofiber (CNF) composite with bisphenol A epoxy diacrylate/glycidyl methacrylate (BED/GMA) irradiated by electron beam (T1) has been achieved in the current work. The physico-chemical characteristics of the fabricated coatings have been studied using Fourier transforms infrared spectroscopy, scanning electron microscope, water contact angle, and X-ray diffraction. The efficacy of T1 formulation and pure BED/GMA polymer (T2) in inhibiting biofouling formation was investigated in seawater of Alexandria Eastern Harbour by examining biofilm development morphologically and biochemically. In addition, regular analyses of seawater physicochemical parameters were conducted monthly throughout study. Results provide valuable information on coating performance as well as the complex interactions between coatings, biofilms, and environmental factors. The T1 formulation exhibited strong anti-fouling and anticorrosion properties over 2 months. However, after four months of immersion, all coated steel surfaces, including T1, T2, and T0, were heavily covered with macro-fouling, including tubeworms, barnacles, and algae. Biochemical analysis of extracellular polymeric substances (EPS) showed statistically significant variations in carbohydrates content between the coated surfaces. The T1 formulation showed decreased protein and carbohydrate content in EPS fractions after 14 days of immersion indicating less biofouling. Moreover, elemental analysis showed that carbon, oxygen, and iron were the predominant elements in the biofilm. Other elements such as sodium, silicon, chloride, and calcium were in lower concentrations. T2 and T0 surfaces revealed higher calcium levels and the appearance of sulphur peaks if compared with T1 surface. Diatoms and bacteria were detected on T1, T2, and T0 surfaces. The observed warming of seawater and nutrient-rich conditions were found to promote the growth of fouling organisms, emphasizing the importance of considering environmental factors in biofouling management strategies.
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Affiliation(s)
- Madelyn N Moawad
- National Institute of Oceanography and Fisheries, NIOF, Cairo, Egypt.
| | - Khaled A El-Damhogy
- Marine Science and Fishes Branch, Zoology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Mohamed Mohamady Ghobashy
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
| | - Islam M Radwan
- National Institute of Oceanography and Fisheries, NIOF, Cairo, Egypt
| | - Ahmed Nasr Alabssawy
- Marine Science and Fishes Branch, Zoology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
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Qiu H, Gapeeva A, Hölken I, Kaps S, Adelung R, Baum MJ. Polydimethylsiloxane Microdomains Formation at the Polythiourethane/Air Interface and Its Influence on Barnacle Release. ACS APPLIED MATERIALS & INTERFACES 2021; 13:4545-4552. [PMID: 33459023 DOI: 10.1021/acsami.0c20058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, polydimethylsiloxane (PDMS)/polythiourethane (PTU) composite reinforced with tetrapodal shaped micro-nano ZnO particles (t-ZnO) was successfully produced by a versatile, industrially applicable polymer blending process. On the surface of this composite, PDMS is distributed in the form of microdomains embedded in a PTU matrix. The composite inherited not only good mechanical properties originating from PTU but also promising fouling-release (FR) properties due to the presence of PDMS on the surface. It was shown that the preferential segregation of PDMS domains at the polymer/air interface could be attributed to the difference in the surface free energy of PDMS and PTU. The PDMS microdomains at the PTU/air interface significantly reduced the barnacle adhesion strength on the composite. Both the pseudo- and natural barnacle adhesion strength on the composite was approximately 0.1 MPa, similar to that on pure PDMS. The pseudo-barnacle adhesion on reference surfaces AlMg3 and PTU reached approximately 4 and 6 MPa, respectively. Natural barnacles could not be removed intact from AlMg3 and PTU surfaces without breaking the shell, indicating that the adhesion strength was higher than the mechanical strength of a barnacle shell (approximately 0.4 MPa). The integrity of PDMS microdomains was maintained after 12 months of immersion in seawater and barnacle removal. No surface deteriorations were found. In short, the composite showed excellent potential as a long-term stable FR coating for marine applications.
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Affiliation(s)
- Haoyi Qiu
- Functional Nanomaterials, Institute for Materials Science, Faculty of Engineering, Kiel University, Kaiserstr. 2, Kiel D-24143, Germany
- Phi-Stone AG, Kaiserstr. 2, Kiel D-24143, Germany
| | - Anna Gapeeva
- Functional Nanomaterials, Institute for Materials Science, Faculty of Engineering, Kiel University, Kaiserstr. 2, Kiel D-24143, Germany
| | - Iris Hölken
- Phi-Stone AG, Kaiserstr. 2, Kiel D-24143, Germany
| | - Sören Kaps
- Functional Nanomaterials, Institute for Materials Science, Faculty of Engineering, Kiel University, Kaiserstr. 2, Kiel D-24143, Germany
| | - Rainer Adelung
- Functional Nanomaterials, Institute for Materials Science, Faculty of Engineering, Kiel University, Kaiserstr. 2, Kiel D-24143, Germany
| | - Martina J Baum
- Functional Nanomaterials, Institute for Materials Science, Faculty of Engineering, Kiel University, Kaiserstr. 2, Kiel D-24143, Germany
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Klemm S, Baum M, Qiu H, Nan Z, Cavalheiro M, Teixeira MC, Tendero C, Gapeeva A, Adelung R, Dague E, Castelain M, Formosa-Dague C. Development of Polythiourethane/ZnO-Based Anti-Fouling Materials and Evaluation of the Adhesion of Staphylococcus aureus and Candida glabrata Using Single-Cell Force Spectroscopy. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:271. [PMID: 33494168 PMCID: PMC7909824 DOI: 10.3390/nano11020271] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/08/2021] [Accepted: 01/13/2021] [Indexed: 11/16/2022]
Abstract
The attachment of bacteria and other microbes to natural and artificial surfaces leads to the development of biofilms, which can further cause nosocomial infections. Thus, an important field of research is the development of new materials capable of preventing the initial adhesion of pathogenic microorganisms. In this work, novel polymer/particle composite materials, based on a polythiourethane (PTU) matrix and either spherical (s-ZnO) or tetrapodal (t-ZnO) shaped ZnO fillers, were developed and characterized with respect to their mechanical, chemical and surface properties. To then evaluate their potential as anti-fouling surfaces, the adhesion of two different pathogenic microorganism species, Staphylococcus aureus and Candida glabrata, was studied using atomic force microscopy (AFM). Our results show that the adhesion of both S. aureus and C. glabrata to PTU and PTU/ZnO is decreased compared to a model surface polydimethylsiloxane (PDMS). It was furthermore found that the amount of both s-ZnO and t-ZnO filler had a direct influence on the adhesion of S. aureus, as increasing amounts of ZnO particles resulted in reduced adhesion of the cells. For both microorganisms, material composites with 5 wt.% of t-ZnO particles showed the greatest potential for anti-fouling with significantly decreased adhesion of cells. Altogether, both pathogens exhibit a reduced capacity to adhere to the newly developed nanomaterials used in this study, thus showing their potential for bio-medical applications.
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Affiliation(s)
- Sophie Klemm
- Functional Nanomaterials, Institute for Materials Science, Kiel University, 24143 Kiel, Germany; (S.K.); (H.Q.); (A.G.); (R.A.)
- LAAS-CNRS, Université de Toulouse, CNRS, 31400 Toulouse, France;
| | - Martina Baum
- Functional Nanomaterials, Institute for Materials Science, Kiel University, 24143 Kiel, Germany; (S.K.); (H.Q.); (A.G.); (R.A.)
| | - Haoyi Qiu
- Functional Nanomaterials, Institute for Materials Science, Kiel University, 24143 Kiel, Germany; (S.K.); (H.Q.); (A.G.); (R.A.)
| | - Zibin Nan
- TBI, Université de Toulouse, INSA, INRAE, CNRS, 31400 Toulouse, France; (Z.N.); (M.C.)
| | - Mafalda Cavalheiro
- Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal; (M.C.); (M.C.T.)
| | - Miguel Cacho Teixeira
- Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal; (M.C.); (M.C.T.)
| | - Claire Tendero
- CIRIMAT, Université de Toulouse, CNRS, INPT, UPS, 31400 Toulouse, France;
- Fédération de Recherche Fermat, CNRS, 31000 Toulouse, France
| | - Anna Gapeeva
- Functional Nanomaterials, Institute for Materials Science, Kiel University, 24143 Kiel, Germany; (S.K.); (H.Q.); (A.G.); (R.A.)
| | - Rainer Adelung
- Functional Nanomaterials, Institute for Materials Science, Kiel University, 24143 Kiel, Germany; (S.K.); (H.Q.); (A.G.); (R.A.)
| | - Etienne Dague
- LAAS-CNRS, Université de Toulouse, CNRS, 31400 Toulouse, France;
- Fédération de Recherche Fermat, CNRS, 31000 Toulouse, France
| | - Mickaël Castelain
- TBI, Université de Toulouse, INSA, INRAE, CNRS, 31400 Toulouse, France; (Z.N.); (M.C.)
- Fédération de Recherche Fermat, CNRS, 31000 Toulouse, France
| | - Cécile Formosa-Dague
- TBI, Université de Toulouse, INSA, INRAE, CNRS, 31400 Toulouse, France; (Z.N.); (M.C.)
- Fédération de Recherche Fermat, CNRS, 31000 Toulouse, France
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Mechanical Properties of Protective Coatings against Marine Fouling: A Review. Polymers (Basel) 2021; 13:polym13020173. [PMID: 33418953 PMCID: PMC7825044 DOI: 10.3390/polym13020173] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 12/13/2022] Open
Abstract
The accumulation of marine organisms on ship hulls, such as microorganisms, barnacles, and seaweeds, represents a global problem for maritime industries, with both economic and environmental costs. The use of biocide-containing paints poses a serious threat to marine ecosystems, affecting both target and non-target organisms driving science and technology towards non-biocidal solutions based on physico-chemical and materials properties of coatings. The review reports recent development of hydrophobic protective coatings in terms of mechanical properties, correlated with the wet ability features. The attention is focused mainly on coatings based on siloxane and epoxy resin due to the wide application fields of such systems in the marine industry. Polyurethane and other systems have been considered as well. These coatings for anti-fouling applications needs to be both long-term mechanically stable, perfectly adherent with the metallic/composite substrate, and capable to detach/destroy the fouling organism. Prospects should focus on developing even “greener” antifouling coatings solutions. These coatings should also be readily addressable to industrial scale-up for large-scale product distribution, possibly at a reasonable cost.
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Ali A, Jamil MI, Jiang J, Shoaib M, Amin BU, Luo S, Zhan X, Chen F, Zhang Q. An overview of controlled-biocide-release coating based on polymer resin for marine antifouling applications. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02054-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Botlhoko OJ, Letwaba L, Bandyopadhyay J, Ray SS. UV‐protection, tribology, and mechanical properties of ZnO‐containing polyamide composites. J Appl Polym Sci 2019. [DOI: 10.1002/app.48418] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Orebotse Joseph Botlhoko
- DST‐CSIR National Centre for Nanostructured MaterialsCouncil for Scientific and Industrial Research Pretoria 0001 South Africa
| | - Lesetja Letwaba
- DST‐CSIR National Centre for Nanostructured MaterialsCouncil for Scientific and Industrial Research Pretoria 0001 South Africa
| | - Jayita Bandyopadhyay
- DST‐CSIR National Centre for Nanostructured MaterialsCouncil for Scientific and Industrial Research Pretoria 0001 South Africa
| | - Suprakas Sinha Ray
- DST‐CSIR National Centre for Nanostructured MaterialsCouncil for Scientific and Industrial Research Pretoria 0001 South Africa
- Department of Chemical SciencesUniversity of Johannesburg Doornfontein 2028 South Africa
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Xu H, Zhang J, Lv X, Niu T, Zeng Y, Duan J, Hou B. The effective photocatalysis and antibacterial properties of AgBr/Ag 2MoO 4@ZnO composites under visible light irradiation. BIOFOULING 2019; 35:719-731. [PMID: 31505979 DOI: 10.1080/08927014.2019.1653453] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 08/02/2019] [Accepted: 08/02/2019] [Indexed: 06/10/2023]
Abstract
A novel Z-scheme AgBr/Ag2MoO4@ZnO photocatalyst was fabricated via a hydrothermal process and in situ growth method. X-ray powder diffraction, scanning electron microscopy and transmission electron microscopy were used to determine the structure of the photocatalyst. The results showed that the composites were tightly connected by the (101) lattice plane of ZnO, the (222) plane of Ag2MoO4 and the (200) lattice plane of AgBr. Because of the strong redox activity and good separability of photoelectrons and holes induced by the Z-scheme structure, the photodegradation rate for ciprofloxacin (CIP) solution was 80.5% by the photocatalysis of 0.5 AgBr/Ag2MoO4@ZnO. In addition, more than 99.999% of Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa cells were killed within 60 min. These results demonstrate that AgBr/Ag2MoO4@ZnO is a promising photocatalyst, which can be used in organic pollutant degradation and the photocatalytic antibacterial area.
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Affiliation(s)
- Huihui Xu
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences , Qingdao , PR China
- Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology , Qingdao, PR China
- University of Chinese Academy of Sciences , Beijing , PR China
- Center for Ocean Mega-Science, Chinese Academy of Sciences , Qingdao , PR China
| | - Jie Zhang
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences , Qingdao , PR China
- Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology , Qingdao, PR China
- Center for Ocean Mega-Science, Chinese Academy of Sciences , Qingdao , PR China
| | - Xianzi Lv
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences , Qingdao , PR China
- Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology , Qingdao, PR China
| | - Tianjie Niu
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences , Qingdao , PR China
| | - Yuxiang Zeng
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences , Qingdao , PR China
| | - Jizhou Duan
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences , Qingdao , PR China
- Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology , Qingdao, PR China
- Center for Ocean Mega-Science, Chinese Academy of Sciences , Qingdao , PR China
| | - Baorong Hou
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences , Qingdao , PR China
- Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology , Qingdao, PR China
- Center for Ocean Mega-Science, Chinese Academy of Sciences , Qingdao , PR China
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Ponnamma D, Cabibihan JJ, Rajan M, Pethaiah SS, Deshmukh K, Gogoi JP, Pasha SKK, Ahamed MB, Krishnegowda J, Chandrashekar BN, Polu AR, Cheng C. Synthesis, optimization and applications of ZnO/polymer nanocomposites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:1210-1240. [PMID: 30813004 DOI: 10.1016/j.msec.2019.01.081] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 12/02/2018] [Accepted: 01/20/2019] [Indexed: 01/15/2023]
Abstract
Polymer composites have established an excellent position among the technologically essential materials because of their wide range of applications. An enormous research interest has been devoted to zinc oxide (ZnO) based polymer nanocomposites, due to their exceptional electrical, optical, thermal, mechanical, catalytic, and biomedical properties. This article provides a review of various polymer composites consisting of ZnO nanoparticles (NPs) as reinforcements, exhibiting excellent properties for applications such as the dielectric, sensing, piezoelectric, electromagnetic shielding, thermal conductivity and energy storage. The preparation methods of such composites including solution blending, in situ polymerization, and melt intercalation are also explained. The current challenges and potential applications of these composites are provided in order to guide future progress on the development of more promising materials. Finally, a detailed summary of the current trends in the field is presented to progressively show the future prospects for the development of ZnO containing polymer nanocomposite materials.
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Affiliation(s)
| | - John-John Cabibihan
- Mechanical and Industrial Engineering Department, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Mariappan Rajan
- Biomaterials in Medicinal Chemistry Laboratory, Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India
| | - S Sundar Pethaiah
- Gashubin Engineering Pvt Ltd, 8 New Industrial Road, 536200, Singapore
| | - Kalim Deshmukh
- Department of Physics, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 600048, TN, India.
| | - Jyoti Prasad Gogoi
- Department of Physics, The Assam Kaziranga University, Jorhat 785006, India
| | - S K Khadheer Pasha
- Department of Physics, VIT-AP University, Amaravati Campus, Guntur 522501, Andhra Pradesh, India
| | - M Basheer Ahamed
- Department of Physics, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 600048, TN, India
| | - Jagadish Krishnegowda
- Centre for Materials Science and Technology, Vijnana Bhavan, University of Mysore, Manasagangotri, Mysore 570006, India
| | - B N Chandrashekar
- Department of Materials Science and Engineering and Shenzhen Key Laboratory of Nanoimprint Technology, South University of Science and Technology, Shenzhen 518055, PR China
| | - Anji Reddy Polu
- Department of Physics, Vardhaman College of Engineering, Kacharam, Shamshabad, 501218 Hyderabad, Telangana, India
| | - Chun Cheng
- Department of Materials Science and Engineering and Shenzhen Key Laboratory of Nanoimprint Technology, South University of Science and Technology, Shenzhen 518055, PR China
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Development and Characterization of Mechanically Durable Silicone-Polythiourethane Composites Modified with Tetrapodal Shaped ZnO Particles for the Potential Application as Fouling-Release Coating in the Marine Sector. MATERIALS 2018; 11:ma11122413. [PMID: 30501063 PMCID: PMC6316896 DOI: 10.3390/ma11122413] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 11/22/2018] [Accepted: 11/25/2018] [Indexed: 11/24/2022]
Abstract
Ecological considerations strongly necessitate the development of environmentally friendly antifouling paints. A promising alternative to biocide containing antifouling paints are fouling-release coatings, which are non-toxic and designed to prevent permanent attachment of marine organisms to the surface, due to their low surface energy. However, these coatings suffer from insufficient mechanical properties, which make them unsuitable for mechanically stressed surfaces e.g., on ship hulls. To overcome those obstacles, polydimethylsiloxane (PDMS)-polythiourethane (PTU) composites modified with tetrapodal shaped micro-nano ZnO particles (t-ZnO) were produced and characterized by evaluating the surface energy, mechanical properties, and fouling-release performance. Among all variations, PTU/1 wt.% PDMS composites with 1 wt.% t-ZnO particles possess superior properties for applications as fouling-release coatings for maritime purposes.
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11
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Srivastava SK, Mishra YK. Nanocarbon Reinforced Rubber Nanocomposites: Detailed Insights about Mechanical, Dynamical Mechanical Properties, Payne, and Mullin Effects. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E945. [PMID: 30453541 PMCID: PMC6266093 DOI: 10.3390/nano8110945] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 10/25/2018] [Accepted: 11/08/2018] [Indexed: 11/23/2022]
Abstract
The reinforcing ability of the fillers results in significant improvements in properties of polymer matrix at extremely low filler loadings as compared to conventional fillers. In view of this, the present review article describes the different methods used in preparation of different rubber nanocomposites reinforced with nanodimensional individual carbonaceous fillers, such as graphene, expanded graphite, single walled carbon nanotubes, multiwalled carbon nanotubes and graphite oxide, graphene oxide, and hybrid fillers consisting combination of individual fillers. This is followed by review of mechanical properties (tensile strength, elongation at break, Young modulus, and fracture toughness) and dynamic mechanical properties (glass transition temperature, crystallization temperature, melting point) of these rubber nanocomposites. Finally, Payne and Mullin effects have also been reviewed in rubber filled with different carbon based nanofillers.
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Affiliation(s)
- Suneel Kumar Srivastava
- Inorganic Materials and Polymer Nanocomposite Laboratory, Department of Chemistry, Indian Institute of Technology, Kharagpur-72102, India.
| | - Yogendra Kumar Mishra
- Functional Nanomaterials, Institute for Materials Science, Kiel University, Kaiserstr, D-24143 Kiel, Germany.
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12
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Peiris MMK, Fernando SSN, Jayaweera PM, Arachchi NDH, Guansekara TDCP. Comparison of Antimicrobial Properties of Silver Nanoparticles Synthesized from Selected Bacteria. Indian J Microbiol 2018; 58:301-311. [PMID: 30013274 PMCID: PMC6023817 DOI: 10.1007/s12088-018-0723-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 03/30/2018] [Indexed: 10/17/2022] Open
Abstract
Green silver nanoparticle (AgNP) biosynthesis is facilitated by the enzyme mediated reduction of Ag ions by plants, fungi and bacteria. The antimicrobial activity of green AgNPs is useful to overcome the challenge of antimicrobial resistance. Antimicrobial properties of biosynthesized AgNPs depend on multiple factors including culture conditions and the microbial source. The antimicrobial activity of AgNPs biosynthesized by Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 25923 and Acinetobacter baumannii (confirmed clinical isolate) were investigated in this study. Biosynthesis conditions (AgNO3 concentration, pH, incubation temperature and incubation time) were optimized to obtain the maximum AgNP yield. Presence of AgNPs was confirmed by observing a characteristic UV-Visible absorbance peak in 420-435 nm range. AgNP biosynthesis was optimal at 0.4 g/L AgNO3 concentration under alkaline conditions at 60-70 °C. The biosynthesized AgNPs showed higher stability compared to chemogenized AgNPs in the presence of electrolytes. AgNPs synthesized by P. aeruginosa were the most stable while NPs of S. aureus were the least stable. AgNPs synthesized by P. aeruginosa and S. aureus showed good antimicrobial potential against E. coli, P. aeruginosa, S. aureus, MRSA and Candida albicans. AgNPs synthesized by S. aureus had greater antimicrobial activity. The antimicrobial activity of NPs may vary depending on the size and the morphology of NPs.
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Affiliation(s)
- M. M. K. Peiris
- Department of Microbiology, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - S. S. N. Fernando
- Department of Microbiology, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - P. M. Jayaweera
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - N. D. H. Arachchi
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - T. D. C. P. Guansekara
- Department of Microbiology, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
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Jiang J, Zhao P, Shi L, Yue X, Qiu Q, Xie T, Wang D, Lin Y, Mu Z. Insights into the interface effect in Pt@BiOI/ZnO ternary hybrid composite for efficient photodegradation of phenol and photogenerated charge transfer properties. J Colloid Interface Sci 2018; 518:102-110. [DOI: 10.1016/j.jcis.2018.01.097] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 01/23/2018] [Accepted: 01/26/2018] [Indexed: 12/01/2022]
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14
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Galván Márquez I, Ghiyasvand M, Massarsky A, Babu M, Samanfar B, Omidi K, Moon TW, Smith ML, Golshani A. Zinc oxide and silver nanoparticles toxicity in the baker's yeast, Saccharomyces cerevisiae. PLoS One 2018; 13:e0193111. [PMID: 29554091 PMCID: PMC5858749 DOI: 10.1371/journal.pone.0193111] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 02/05/2018] [Indexed: 12/18/2022] Open
Abstract
Engineered nanomaterials (ENMs) are increasingly incorporated into a variety of commercial applications and consumer products; however, ENMs may possess cytotoxic properties due to their small size. This study assessed the effects of two commonly used ENMs, zinc oxide nanoparticles (ZnONPs) and silver nanoparticles (AgNPs), in the model eukaryote Saccharomyces cerevisiae. A collection of ≈4600 S. cerevisiae deletion mutant strains was used to deduce the genes, whose absence makes S. cerevisiae more prone to the cytotoxic effects of ZnONPs or AgNPs. We demonstrate that S. cerevisiae strains that lack genes involved in transmembrane and membrane transport, cellular ion homeostasis, and cell wall organization or biogenesis exhibited the highest sensitivity to ZnONPs. In contrast, strains that lack genes involved in transcription and RNA processing, cellular respiration, and endocytosis and vesicular transport exhibited the highest sensitivity to AgNPs. Secondary assays confirmed that ZnONPs affected cell wall function and integrity, whereas AgNPs exposure decreased transcription, reduced endocytosis, and led to a dysfunctional electron transport system. This study supports the use of S. cerevisiae Gene Deletion Array as an effective high-throughput technique to determine cellular targets of ENM toxicity.
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Affiliation(s)
- Imelda Galván Márquez
- Department of Biology and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada
| | - Mergan Ghiyasvand
- Department of Biology and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada
| | - Andrey Massarsky
- Department of Biology, Centre for Advanced Research in Environmental Genomics and the Collaborative Program in Chemical and Environmental Toxicology, University of Ottawa, Ottawa, Ontario, Canada
| | - Mohan Babu
- Department of Biochemistry, University of Regina, Regina, Saskatchewan, Canada
| | - Bahram Samanfar
- Department of Biology and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada
- Agriculture and Agri-Food Canada, Ottawa Research and Development Centre (ORDC), Ottawa, Ontario, Canada
| | - Katayoun Omidi
- Department of Biology and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada
| | - Thomas W. Moon
- Department of Biology, Centre for Advanced Research in Environmental Genomics and the Collaborative Program in Chemical and Environmental Toxicology, University of Ottawa, Ottawa, Ontario, Canada
| | - Myron L. Smith
- Department of Biology and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada
- * E-mail: (MLS); (AG)
| | - Ashkan Golshani
- Department of Biology and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada
- * E-mail: (MLS); (AG)
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15
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Kim S, Gim T, Jeong Y, Ryu JH, Kang SM. Facile Construction of Robust Multilayered PEG Films on Polydopamine-Coated Solid Substrates for Marine Antifouling Applications. ACS APPLIED MATERIALS & INTERFACES 2018; 10:7626-7631. [PMID: 28853548 DOI: 10.1021/acsami.7b07199] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We report an effective and versatile approach to control marine fouling on artificial surfaces based on specific chemical interactions found in marine mussels. The approach consists of mussel-inspired polydopamine coating, spin-coating-assisted deposition of poly(ethylene glycol) (PEG) catechols, and their cross-linking via catechol-Fe3+-catechol interactions. Using this approach, multilayered PEG films that were highly resistant to marine diatom adhesion were successfully constructed on various substrates, such as stainless steel, nylon, titanium oxide, and silicon oxide. We believe that our results will provide a basis for the construction of a marine antifouling agent that can be applied by a large variety of industries owing to its applicability to different types of substrates and stability under marine environments.
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Affiliation(s)
- Suyeob Kim
- Department of Marine Biomaterials & Aquaculture , Pukyong National University , Busan 48513 , Republic of Korea
| | - Taewoo Gim
- Department of Marine Biomaterials & Aquaculture , Pukyong National University , Busan 48513 , Republic of Korea
| | - Yeonwoo Jeong
- Department of Chemistry , Chungbuk National University , Chungbuk 28644 , Republic of Korea
| | - Ji Hyun Ryu
- Department of Bioengineering , University of California, San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Sung Min Kang
- Department of Chemistry , Chungbuk National University , Chungbuk 28644 , Republic of Korea
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16
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Posel Z, Svoboda M, Limpouchová Z, Lísal M, Procházka K. Adsorption of amphiphilic graft copolymers in solvents selective for the grafts on a lyophobic surface: a coarse-grained simulation study. Phys Chem Chem Phys 2018; 20:6533-6547. [DOI: 10.1039/c7cp08327k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The sorption of graft copolymers on surfaces attractive only for the backbone and its effect on the conformational behavior of adsorbed/desorbed chains in solvents good for the grafts and poor for the backbone was studied by coarse-grained computer simulations.
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Affiliation(s)
- Zbyšek Posel
- Department of Informatics, Faculty of Science, J. E. Purkinje University
- Czech Republic
- Department of Molecular and Mesoscale Modelling, Institute of Chemical Process Fundamentals of CAS, v. v. i
- 165 02 Prague 6-Suchdol
- Czech Republic
| | - Martin Svoboda
- Department of Molecular and Mesoscale Modelling, Institute of Chemical Process Fundamentals of CAS, v. v. i
- 165 02 Prague 6-Suchdol
- Czech Republic
- Department of Physics, Faculty of Science, J. E. Purkinje University
- Czech Republic
| | - Zuzana Limpouchová
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague
- Prague 2
- Czech Republic
| | - Martin Lísal
- Department of Molecular and Mesoscale Modelling, Institute of Chemical Process Fundamentals of CAS, v. v. i
- 165 02 Prague 6-Suchdol
- Czech Republic
- Department of Physics, Faculty of Science, J. E. Purkinje University
- Czech Republic
| | - Karel Procházka
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague
- Prague 2
- Czech Republic
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17
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Yung MMN, Fougères PA, Leung YH, Liu F, Djurišić AB, Giesy JP, Leung KMY. Physicochemical characteristics and toxicity of surface-modified zinc oxide nanoparticles to freshwater and marine microalgae. Sci Rep 2017; 7:15909. [PMID: 29162907 PMCID: PMC5698420 DOI: 10.1038/s41598-017-15988-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 11/02/2017] [Indexed: 01/25/2023] Open
Abstract
Because of wide applications of surface-modified zinc oxide nanoparticles (ZnO-NPs) in commercial sunscreens and their easiness of being released into water, concerns have been raised over their potential effects on aquatic organisms. This study compared physicochemical properties of silane-coated and uncoated ZnO-NPs to elucidate their toxic potencies toward three freshwater and three marine microalgae. Surfaces of ZnO-NPs (20 nm) were modified by coating with 3-aminopropyltrimethoxysilane (A-ZnO-NPs) that provides the particles with a more hydrophilic surface, or dodecyltrichlorosilane (D-ZnO-NPs) that turns the particles to hydrophobic. Uncoated ZnO-NPs formed larger aggregates and released more Zn2+ than did either of the two coated ZnO-NPs. The three nanoparticles formed larger aggregates but released less Zn2+ at pH 8 than at pH 7. Although sensitivities varied among algal species, A-ZnO-NPs and uncoated ZnO-NPs were more potent at inhibiting growth of algal cells than were D-ZnO-NPs after 96-h exposure to ZnO, uncoated ZnO-NPs, each of the coated ZnO-NPs or ZnSO4 at 10 concentrations ranging from 0.1 to 100 mg/L. The marine diatom Thalassiosira pseudonana exposed to ZnO-NPs, A-ZnO-NPs or D-ZnO-NPs resulted in differential expressions of genes, suggesting that each of the coatings resulted in ZnO-NPs acting through different mechanisms of toxic action.
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Affiliation(s)
- Mana M N Yung
- The Swire Institute of Marine Science and School of Biological Sciences, the University of Hong Kong, Pokfulam, Hong Kong, China
| | - Paul-Antoine Fougères
- The Swire Institute of Marine Science and School of Biological Sciences, the University of Hong Kong, Pokfulam, Hong Kong, China.,Université de Bordeaux, Bordeaux, France
| | - Yu Hang Leung
- Department of Physics, the University of Hong Kong, Pokfulam, Hong Kong, China
| | - Fangzhou Liu
- Department of Physics, the University of Hong Kong, Pokfulam, Hong Kong, China
| | | | - John P Giesy
- The Swire Institute of Marine Science and School of Biological Sciences, the University of Hong Kong, Pokfulam, Hong Kong, China.,Department of Veterinary Biomedical Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada.,State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - Kenneth M Y Leung
- The Swire Institute of Marine Science and School of Biological Sciences, the University of Hong Kong, Pokfulam, Hong Kong, China. .,State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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18
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Neubüser G, Hansen S, Duppel V, Adelung R, Kienle L. (Re-)crystallization mechanism of highly oriented Si-microwire arrays by TEM analysis. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3672-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Shree S, Schulz-Senft M, Alsleben NH, Mishra YK, Staubitz A, Adelung R. Light, Force, and Heat: A Multi-Stimuli Composite that Reveals its Violent Past. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38000-38007. [PMID: 28967255 DOI: 10.1021/acsami.7b09598] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A self-reporting polythiourethane/tetrapodal-ZnO (PTU/T-ZnO) composite is produced using spiropyran as an additive at a concentration as low as 0.5 wt %. Exposure to heat, UV light and mechanical force caused the spiropyran to undergo reversible isomerization indicated by a reversible color change. The studies have been conducted with a constant spiropyran concentration at 0.5 wt %, meanwhile varying the T-ZnO concentration from 0 to 7.5 wt %. The tetrapodal ZnO served as a prism: the light scattering effect of T-ZnO created a visual impression of uniform color distribution. The interconnected network of the tetrapodal of ZnO embedded in the PTU matrix enhanced the mechanical stability of the polymer leading to high impact resistance up to ∼232 kPa. PTU/spiropyran also emerged as a possible thermal sensing coating, due to its temperature sensitivity. Due to the broad green luminescence band (∼535 nm) in T-ZnO, the colored merocyanine form which absorbs in this region of the spectrum switches back to spiropyran at this wavelength. High concentrations of T-ZnO were shown to reduce the effect one of the switching triggers i.e., ultraviolet light. Using this property of T-ZnO it was possible to achieve a switchable system with the possibility of separating the stimuli.
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Affiliation(s)
- Sindu Shree
- Institute for Materials Science, Functional Nanomaterials, Kiel University , Kaiserstr. 2, D-24143 Kiel, Germany
| | - Mathias Schulz-Senft
- Otto-Diels-Institute for Organic Chemistry, Kiel University , Otto-Hahn-Platz 4, D-24118 Kiel, Germany
| | - Nils H Alsleben
- Institute for Materials Science, Functional Nanomaterials, Kiel University , Kaiserstr. 2, D-24143 Kiel, Germany
| | - Yogendra Kumar Mishra
- Institute for Materials Science, Functional Nanomaterials, Kiel University , Kaiserstr. 2, D-24143 Kiel, Germany
| | - Anne Staubitz
- Otto-Diels-Institute for Organic Chemistry, Kiel University , Otto-Hahn-Platz 4, D-24118 Kiel, Germany
- Institute for Organic and Analytical Chemistry, University of Bremen , Leobener Str. 7, NW2 C, 28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen, Bibliothekstraße 1 , Bremen 28359, Germany
| | - Rainer Adelung
- Institute for Materials Science, Functional Nanomaterials, Kiel University , Kaiserstr. 2, D-24143 Kiel, Germany
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20
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Nasajpour A, Mandla S, Shree S, Mostafavi E, Sharifi R, Khalilpour A, Saghazadeh S, Hassan S, Mitchell MJ, Leijten J, Hou X, Moshaverinia A, Annabi N, Adelung R, Mishra YK, Shin SR, Tamayol A, Khademhosseini A. Nanostructured Fibrous Membranes with Rose Spike-Like Architecture. NANO LETTERS 2017; 17:6235-6240. [PMID: 28819978 PMCID: PMC5683165 DOI: 10.1021/acs.nanolett.7b02929] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Nanoparticles have been used for engineering composite materials to improve the intrinsic properties and/or add functionalities to pristine polymers. The majority of the studies have focused on the incorporation of spherical nanoparticles within the composite fibers. Herein, we incorporate anisotropic branched-shaped zinc oxide (ZnO) nanoparticles into fibrous scaffolds fabricated by electrospinning. The addition of the branched particles resulted in their protrusion from fibers, mimicking the architecture of a rose stem. We demonstrated that the encapsulation of different-shape particles significantly influences the physicochemical and biological activities of the resultant composite scaffolds. In particular, the branched nanoparticles induced heterogeneous crystallization of the polymeric matrix and enhance the ultimate mechanical strain and strength. Moreover, the three-dimensional (3D) nature of the branched ZnO nanoparticles enhanced adhesion properties of the composite scaffolds to the tissues. In addition, the rose stem-like constructs offered excellent antibacterial activity, while supporting the growth of eukaryote cells.
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Affiliation(s)
- Amir Nasajpour
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Serena Mandla
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Sindu Shree
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
| | - Ebrahim Mostafavi
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115-5000, United States
| | - Roholah Sharifi
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Akbar Khalilpour
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Saghi Saghazadeh
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Shabir Hassan
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Michael J. Mitchell
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Chemical Engineering, David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Jeroen Leijten
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands
| | - Xu Hou
- State Key Laboratory of Physical Chemistry of Solid Surface, Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Alireza Moshaverinia
- Weintraub Center for Reconstructive Biotechnology Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, California 90095, United States
| | - Nasim Annabi
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115-5000, United States
| | - Rainer Adelung
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
| | - Yogendra Kumar Mishra
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
| | - Su Ryon Shin
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, 143-701, The Republic of Korea
| | - Ali Tamayol
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, Nebraska 68588, United States
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, 143-701, The Republic of Korea
| | - Ali Khademhosseini
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, 143-701, The Republic of Korea
- Center of Nanotechnology, King Abdulaziz University, Jeddah 21569, Saudi Arabia
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21
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Nahum T, Dodiuk H, Kenig S, Panwar A, Barry C, Mead J. The effect of composition and thermodynamics on the surface morphology of durable superhydrophobic polymer coatings. Nanotechnol Sci Appl 2017; 10:53-68. [PMID: 28243071 PMCID: PMC5317333 DOI: 10.2147/nsa.s123447] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Durable superhydrophobic coatings were synthesized using a system of silica nanoparticles (NPs) to provide nanoscale roughness, fluorosilane to give hydrophobic chemistry, and three different polymer binders: urethane acrylate, ethyl 2-cyanoacrylate, and epoxy. Coatings composed of different binders incorporating NPs in various concentrations exhibited different superhydrophobic attributes when applied on polycarbonate (PC) and glass substrates and as a function of coating composition. It was found that the substrate surface characteristics and wettability affected the superhydrophobic characteristics of the coatings. Interfacial tension and spreading coefficient parameters (thermodynamics) of the coating components were used to predict the localization of the NPs for the different binders’ concentrations. The thermodynamic analysis of the NPs localization was in good agreement with the experimental observations. On the basis of the thermodynamic analysis and the experimental scanning electron microscopy, X-ray photoelectron spectroscopy, profilometry, and atomic force microscopy results, it was concluded that localization of the NPs on the surface was critical to provide the necessary roughness and resulting superhydrophobicity. The durability evaluated by tape testing of the epoxy formulations was the best on both glass and PC. Several coating compositions retained their superhydrophobicity after the tape test. In summary, it was concluded that thermodynamic analysis is a powerful tool to predict the roughness of the coating due to the location of NPs on the surface, and hence can be used in the design of superhydrophobic coatings.
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Affiliation(s)
- Tehila Nahum
- Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA, USA
| | - Hanna Dodiuk
- Department of Polymers and Plastics Engineering, Shenkar College of Engineering Design and Art, Ramat Gan, Israel
| | - Samuel Kenig
- Department of Polymers and Plastics Engineering, Shenkar College of Engineering Design and Art, Ramat Gan, Israel
| | - Artee Panwar
- Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA, USA
| | - Carol Barry
- Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA, USA
| | - Joey Mead
- Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA, USA
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22
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Strong light scattering and broadband (UV to IR) photoabsorption in stretchable 3D hybrid architectures based on Aerographite decorated by ZnO nanocrystallites. Sci Rep 2016; 6:32913. [PMID: 27616632 PMCID: PMC5018730 DOI: 10.1038/srep32913] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 08/17/2016] [Indexed: 11/23/2022] Open
Abstract
In present work, the nano- and microscale tetrapods from zinc oxide were integrated on the surface of Aerographite material (as backbone) in carbon-metal oxide hybrid hierarchical network via a simple and single step magnetron sputtering process. The fabricated hybrid networks are characterized for morphology, microstructural and optical properties. The cathodoluminescence investigations revealed interesting luminescence features related to carbon impurities and inherent host defects in zinc oxide. Because of the wide bandgap of zinc oxide and its intrinsic defects, the hybrid network absorbs light in the UV and visible regions, however, this broadband photoabsorption behavior extends to the infrared (IR) region due to the dependence of the optical properties of ZnO architectures upon size and shape of constituent nanostructures and their doping by carbon impurities. Such a phenomenon of broadband photoabsorption ranging from UV to IR for zinc oxide based hybrid materials is novel. Additionally, the fabricated network exhibits strong visible light scattering behavior. The developed Aerographite/nanocrystalline ZnO hybrid network materials, equipped with broadband photoabsorption and strong light scattering, are very promising candidates for optoelectronic technologies.
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