1
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Liu X, Sun J, Duan J, Sui K, Zhai X, Zhao X. AgNP Composite Silicone-Based Polymer Self-Healing Antifouling Coatings. MATERIALS (BASEL, SWITZERLAND) 2024; 17:4289. [PMID: 39274679 PMCID: PMC11396315 DOI: 10.3390/ma17174289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2024] [Revised: 08/13/2024] [Accepted: 08/23/2024] [Indexed: 09/16/2024]
Abstract
Biofouling poses a significant challenge to the marine industry, and silicone anti-biofouling coatings have garnered extensive attention owing to their environmental friendliness and low surface energy. However, their widespread application is hindered by their low substrate adhesion and weak static antifouling capabilities. In this study, a novel silicone polymer polydimethylsiloxane (PDMS)-based poly(urea-thiourea-imine) (PDMS-PUTI) was synthesized via stepwise reactions of aminopropyl-terminated polydimethylsiloxane (APT-PDMS) with isophorone diisocyanate (IPDI), isophthalaldehyde (IPAL), and carbon disulfide (CS2). Subsequently, a nanocomposite coating (AgNPs-x/PDMS-PUTI) was prepared by adding silver nanoparticles (AgNPs) to the polymer PDMS-PUTI. The dynamic multiple hydrogen bonds formed between urea and thiourea linkages, along with dynamic imine bonds in the polymer network, endowed the coating with outstanding self-healing properties, enabling complete scratch healing within 10 min at room temperature. Moreover, uniformly dispersed AgNPs not only reduced the surface energy of the coating but also significantly enhanced its antifouling performance. The antibacterial efficiency against common marine bacteria Pseudomonas aeruginosa (P.sp) and Staphylococcus aureus (S.sp) was reduced by 97.08% and 96.71%, respectively, whilst the diatom settlement density on the coating surface was as low as approximately 59 ± 3 diatom cells/mm2. This study presents a novel approach to developing high-performance silicone antifouling coatings.
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Affiliation(s)
- Xingda Liu
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, China
- Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Jiawen Sun
- Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Jizhou Duan
- Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Kunyan Sui
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, China
| | - Xiaofan Zhai
- Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Xia Zhao
- Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
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2
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Lin B, Li A, De Cachinho Cordeiro IM, Jia M, Lee YX, Yuen ACY, Wang C, Wang W, Yeoh GH. MXene Based Flame Retardant and Electrically Conductive Polymer Coatings. Polymers (Basel) 2024; 16:2461. [PMID: 39274094 PMCID: PMC11398058 DOI: 10.3390/polym16172461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Revised: 08/22/2024] [Accepted: 08/27/2024] [Indexed: 09/16/2024] Open
Abstract
Modern polymer coatings possess tremendous multifunctionalities and have attracted immense research interest in recent decades. However, with the expeditious development of technologies and industries, there is a vast demand for the flame retardancy and electrical conductivity of engineered polymer coatings. Traditional functional materials that render the polymer coatings with these properties require a sophisticated fabrication process, and their high mass gains can be a critical issue for weight-sensitive applications. In recent years, massive research has been conducted on a newly emerged two-dimensional (2D) nanosize material family, MXene. Due to the excellent electrical conductivity, flame retardancy, and lightweightness, investigations have been launched to synthesise MXene-based polymer coatings. Consequently, we performed a step-by-step review of MXene-involved polymer coatings, from solely attaching MXene to the substrate surface to the multilayered coating of modified MXene with other components. This review examines the performances of the fire safety enhancement and electrical conductivity as well as the feasibility of the manufacturing procedures of the as-prepared polymer composites. Additionally, the fabricated polymer coatings' dual property mechanisms are well-demonstrated. Finally, the prospect of MXene participating in polymer coatings to render flame retardancy and electrical conductivity is forecasted.
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Affiliation(s)
- Bo Lin
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Ao Li
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | | | - Ming Jia
- Urban Mobility Institute, College of Transportation Engineering, Tongji University, 4800 Cao'an Rd, Shanghai 201804, China
- Key Laboratory of Road and Traffic Engineering of the Ministry of Education, College of Transportation Engineering, Tongji University, 4800 Cao'an Rd, Shanghai 201804, China
| | - Yuan Xien Lee
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Anthony Chun Yin Yuen
- Department of Building Environment and Energy Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Cheng Wang
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Wei Wang
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Guan Heng Yeoh
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Australian Nuclear Science and Technology Organisation (ANSTO), Kirrawee DC, NSW 2232, Australia
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3
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Papa P, Zampetti E, Molinari FN, De Cesare F, Di Natale C, Tranfo G, Macagnano A. A Polyvinylpyrrolidone Nanofibrous Sensor Doubly Decorated with Mesoporous Graphene to Selectively Detect Acetic Acid Vapors. SENSORS (BASEL, SWITZERLAND) 2024; 24:2174. [PMID: 38610388 PMCID: PMC11014041 DOI: 10.3390/s24072174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/22/2024] [Accepted: 03/24/2024] [Indexed: 04/14/2024]
Abstract
An original approach has been proposed for designing a nanofibrous (NF) layer using UV-cured polyvinylpyrrolidone (PVP) as a matrix, incorporating mesoporous graphene carbon (MGC) nanopowder both inside and outside the fibers, creating a sandwich-like structure. This architecture is intended to selectively adsorb and detect acetic acid vapors, which are known to cause health issues in exposed workers. The nanocomposite MGC-PVP-NFs layer was fabricated through electrospinning deposition onto interdigitated microelectrodes (IDEs) and stabilized under UV-light irradiation. To enhance the adhesion of MGC onto the surface of the nanocomposite polymeric fibers, the layer was dipped in a suspension of polyethyleneimine (PEI) and MGC. The resulting structure demonstrated promising electrical and sensing properties, including rapid responses, high sensitivity, good linearity, reversibility, repeatability, and selectivity towards acetic acid vapors. Initial testing was conducted in a laboratory using a bench electrometer, followed by validation in a portable sensing device based on consumer electronic components (by ARDUINO®). This portable system was designed to provide a compact, cost-effective solution with high sensing capabilities. Under room temperature and ambient air conditions, both laboratory and portable tests exhibited favorable linear responses, with detection limits of 0.16 and 1 ppm, respectively.
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Affiliation(s)
- Paolo Papa
- Institute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, Italy; (E.Z.); or (F.N.M.); (F.D.C.)
| | - Emiliano Zampetti
- Institute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, Italy; (E.Z.); or (F.N.M.); (F.D.C.)
| | - Fabricio Nicolas Molinari
- Institute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, Italy; (E.Z.); or (F.N.M.); (F.D.C.)
- National Institute of Industrial Technology (INTI), Buenos Aires B1650WAB, Argentina
| | - Fabrizio De Cesare
- Institute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, Italy; (E.Z.); or (F.N.M.); (F.D.C.)
- Department for Innovation in Biological, Agro-food and Forest Systems (DIBAF), University of Tuscia, 01100 Viterbo, VT, Italy
| | - Corrado Di Natale
- Department of Electronic Engineering (EED), University of Tor Vergata, 00133 Rome, RM, Italy;
| | - Giovanna Tranfo
- Department of Medicine, Epidemiology, Occupational and Environmental Hygiene (DIMEILA)-INAIL, 00144 Monteporzio Catone, RM, Italy;
| | - Antonella Macagnano
- Institute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, Italy; (E.Z.); or (F.N.M.); (F.D.C.)
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4
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Chaudhuri K, Medhi R, Zhang Z, Cai Z, Ober CK, Pham JT. Visualizing Penetration of Fluorescent Dye through Polymer Coatings. Macromol Rapid Commun 2023; 44:e2300304. [PMID: 37585219 DOI: 10.1002/marc.202300304] [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: 06/23/2023] [Indexed: 08/17/2023]
Abstract
Understanding how small molecules penetrate and contaminate polymer films is of vital importance for developing protective coatings for a wide range of applications. To this end, rhodamine B fluorescent dye is visualized diffusing through polystyrene-polydimethylsiloxane block copolymer (BCP) coatings using confocal microscopy. The intensity of dye inside the coatings grows and decays non-monotonically, which is likely due to a combination of dye molecule transport occurring concurrently in different directions. An empirical fitting equation allows for comparing the contamination rates between copolymers, demonstrating that dye penetration is related to the chemical makeup and configuration of the BCPs. This work shows that confocal microscopy can be a useful tool to visualize the transport of a fluorophore in space and time through a coating.
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Affiliation(s)
- Krishnaroop Chaudhuri
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221, USA
| | - Riddhiman Medhi
- Chemistry Department, University of Scranton, Scranton, PA, 18510, USA
| | - Zhenglin Zhang
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Zhuoyun Cai
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, 40506, USA
| | - Christopher K Ober
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Jonathan T Pham
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221, USA
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5
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Jang NS, Noh CH, Kim YH, Yang HJ, Lee HG, Oh H. Evaluation of a Hydrophobic Coating Agent Based on Cellulose Nanofiber and Alkyl Ketone Dimer. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4216. [PMID: 37374400 DOI: 10.3390/ma16124216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/21/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023]
Abstract
In this study, we report on the development and testing of hydrophobic coatings using cellulose fibers. The developed hydrophobic coating agent secured hydrophobic performance over 120°. In addition, a pencil hardness test, rapid chloride ion penetration test, and carbonation test were conducted, and it was confirmed that concrete durability could be improved. We believe that this study will promote the research and development of hydrophobic coatings in the future.
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Affiliation(s)
- Nag-Seop Jang
- Department of Civil Engineering, Gyeongsang National University, Jinju 52725, Republic of Korea
| | - Chi-Hoon Noh
- Department of Civil Engineering, Gyeongsang National University, Jinju 52725, Republic of Korea
| | - Young-Hwan Kim
- Bricon Lab Inc., Advanced Construction Materials Testing Center, Daegu 42601, Republic of Korea
| | - Hee-Jun Yang
- Bricon Lab Inc., Advanced Construction Materials Testing Center, Daegu 42601, Republic of Korea
| | - Hyeon-Gi Lee
- Bricon Lab Inc., Advanced Construction Materials Testing Center, Daegu 42601, Republic of Korea
| | - HongSeob Oh
- Department of Civil Engineering, Gyeongsang National University, Jinju 52725, Republic of Korea
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6
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Pathak R, Punetha VD, Bhatt S, Punetha M. Multifunctional role of carbon dot-based polymer nanocomposites in biomedical applications: a review. JOURNAL OF MATERIALS SCIENCE 2023; 58:6419-6443. [PMID: 37065681 PMCID: PMC10044123 DOI: 10.1007/s10853-023-08408-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 03/16/2023] [Indexed: 05/29/2023]
Abstract
Carbon-based 0D materials have shown tremendous potential in the development of biomedical applications of the next generation. The astounding results are primarily motivated by their distinctive nanoarchitecture and unique properties. Integrating these properties of 0D carbon nanomaterials into various polymer systems has orchestrated exceptional potential for their use in the development of sustainable and cutting-edge biomedical applications such as biosensors, bioimaging, biomimetic implants and many more. Specifically, carbon dots (CDs) have gained much attention in the development of biomedical devices due to their optoelectronic properties and scope of band manipulation upon surface revamping. The role of CDs in reinforcing various polymeric systems has been reviewed along with discussing unifying concepts of their mechanistic aspects. The study also discussed CDs optical properties via the quantum confinement effect and band gap transition which is further useful in various biomedical application studies.
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Affiliation(s)
- Rakshit Pathak
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, NH-8, GETCO, Kosamba-Surat, Gujarat 394125 India
| | - Vinay Deep Punetha
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, NH-8, GETCO, Kosamba-Surat, Gujarat 394125 India
| | - Shalini Bhatt
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, NH-8, GETCO, Kosamba-Surat, Gujarat 394125 India
| | - Mayank Punetha
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, NH-8, GETCO, Kosamba-Surat, Gujarat 394125 India
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7
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Zidarič T, Skok K, Orthaber K, Pristovnik M, Gradišnik L, Maver T, Maver U. Multilayer Methacrylate-Based Wound Dressing as a Therapeutic Tool for Targeted Pain Relief. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2361. [PMID: 36984241 PMCID: PMC10053588 DOI: 10.3390/ma16062361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/12/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
This study presents an innovative wound dressing system that offers a highly effective therapeutic solution for treating painful wounds. By incorporating the widely used non-steroidal anti-inflammatory drug diclofenac, we have created an active wound dressing that can provide targeted pain relief with ease. The drug was embedded within a biocompatible matrix composed of polyhydroxyethyl methacrylate and polyhydroxypropyl methacrylate. The multilayer structure of the dressing, which allows for sustained drug release and an exact application, was achieved through the layer-by-layer coating technique and the inclusion of superparamagnetic iron platinum nanoparticles. The multilayered dressings' physicochemical, structural, and morphological properties were characterised using various methods. The synergistic effect of the incorporated drug molecules and superparamagnetic nanoparticles on the surface roughness and release kinetics resulted in controlled drug release. In addition, the proposed multilayer wound dressings were found to be biocompatible with human skin fibroblasts. Our findings suggest that the developed wound dressing system can contribute to tailored therapeutic strategies for local pain relief.
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Affiliation(s)
- Tanja Zidarič
- Institute of Biomedical Sciences, Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Kristijan Skok
- Institute of Biomedical Sciences, Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
- Department of Pathology, Hospital Graz II, Location West, Göstinger Straße 22, 8020 Graz, Austria
| | - Kristjan Orthaber
- Institute of Biomedical Sciences, Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Matevž Pristovnik
- Institute of Biomedical Sciences, Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Lidija Gradišnik
- Institute of Biomedical Sciences, Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Tina Maver
- Institute of Biomedical Sciences, Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
- Department of Pharmacology, Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Uroš Maver
- Institute of Biomedical Sciences, Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
- Department of Pharmacology, Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
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8
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Idumah CI. Recently emerging advancements in thermal conductivity and flame retardancy of MXene polymeric nanoarchitectures. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2121220] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- C. I. Idumah
- Faculty of Engineering, Department of Polymer Engineering, Nnamdi Azikiwe University, Awka, Nigeria
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9
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Idumah CI. MXene polymeric nanoarchitectures mechanical, deformation, and failure mechanism: A review. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2114365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- C. I. Idumah
- Faculty of Engineering, Department of Polymer Engineering, Nnamdi Azikiwe University, Awka, Nigeria
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10
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Preparation of Superhydrophobic Materials and Establishment of Anticorrosive Coatings on the Tinplate Substrate by Alkylation of Graphene Oxide. Polymers (Basel) 2023; 15:polym15051280. [PMID: 36904521 PMCID: PMC10007501 DOI: 10.3390/polym15051280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/04/2023] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
Corrosion of structural parts not only reduces the service life of the equipment but also causes safety accidents, so building a long-lasting anti-corrosion coating on its surface is the key to solving this problem. Under the action of alkali catalysis, n-octyltriethoxysilane (OTES), dimethyldimethoxysilane (DMDMS), and perfluorodecyltrimethoxysilane (FTMS) hydrolyzed and polycondensed co-modified graphene oxide (GO), modified to synthesize a self-cleaning superhydrophobic material fluorosilane-modified graphene oxide (FGO). The structure, film morphology, and properties of FGO were systematically characterized. The results showed that the newly synthesized FGO was successfully modified by long-chain fluorocarbon groups and silanes. FGO presented an uneven and rough morphology on the substrate surface, the water contact angle was 151.3°, and the rolling angle was 3.9°, which caused the coating to exhibit excellent self-cleaning function. Meanwhile, the epoxy polymer/fluorosilane-modified graphene oxide (E-FGO) composite coating adhered to the carbon structural steel's surface, and its corrosion resistance was detected by the Tafel curve and EIS impedance. It was found that the current density of the 10 wt% E-FGO coating (Icorr) was the lowest (1.087 × 10-10 A/cm2), which was approximately 3 orders of magnitude lower than that of the unmodified epoxy coating. This was primarily due to the introduction of FGO, which formed a continuous physical barrier in the composite coating and gave the composite coating excellent hydrophobicity. This method might provide new ideas for advances in steel corrosion resistance in the marine sector.
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11
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Idumah CI. Recent advancements in electromagnetic interference shielding of polymer and mxene nanocomposites. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2089581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Faculty of Engineering, Department of Polymer Engineering, Nnamdi Azikiwe University, Awka, Nigeria
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12
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Idumah CI. Phosphorene polymeric nanocomposites for biomedical applications: a review. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2158333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
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13
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Recently emerging trends in xerogel polymeric nanoarchitectures and multifunctional applications. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04625-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer Engineering, Nnamdi Azikiwe University, Faculty of Engineering, Awka, Nigeria
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15
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Yan L, Deng W, Wang N, Xue X, Hua J, Chen Z. Anti-Corrosion Reinforcements Using Coating Technologies-A Review. Polymers (Basel) 2022; 14:4782. [PMID: 36365769 PMCID: PMC9655495 DOI: 10.3390/polym14214782] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/17/2022] [Accepted: 11/01/2022] [Indexed: 09/08/2024] Open
Abstract
Coated reinforcements are expected to improve the performance of reinforced concrete in aggressive environments, but different kinds of coated reinforcements can express a variety of properties, which can confuse researchers and engineers. This paper reviews the manufacture, corrosion mechanisms, behaviors, and applications of popular or promising coated reinforcements, incorporating galvanized reinforcements (GRs), epoxy coated reinforcements (ECRs), stainless cladding reinforcements (SCRs), and steel-fiber reinforced polymer composite bars (SFCBs). In terms of manufacture, GRs and ECRs should focus on minimizing the negative effect of manufacture on performance, while SCRs and SFCBs should reduce the cost and increase the production capacity. Behaviors of GRs and ECRs are primarily determined by the steel substrate, but the behaviors of SCRs and SFCBs are primarily affected by the coat and core, and their interaction. The corrosion mechanism of GRs and SCRs is about oxidation, while that of SFCBs is about hydrolysis. ECRs are usually corroded under film, which can be a cause of premature failure. Corrosion embrittles SCRs, as well as bare bars, but corrosion of SFCBs usually causes a reduction in maximum strength. The investigation of the corrosion behaviors of GRs and ECRs focuses on bond strength. GRs have controversial performance. ECRs have been proven to have drawbacks regarding bond strength. The use of anti-corrosion reinforcement is uneven in regions, which may correlate with the development of technology and the economy.
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Affiliation(s)
- Lei Yan
- State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China
- School of Civil Engineering, Chongqing Three Gorges University, Chongqing 404100, China
| | - Wenjie Deng
- School of Civil Engineering, Chongqing University, Chongqing 400045, China
| | - Neng Wang
- School of Management Science and Real Estate, Chongqing University, Chongqing 400045, China
| | - Xuanyi Xue
- School of Civil Engineering, Chongqing University, Chongqing 400045, China
| | - Jianmin Hua
- School of Civil Engineering, Chongqing University, Chongqing 400045, China
| | - Zengshun Chen
- School of Civil Engineering, Chongqing University, Chongqing 400045, China
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16
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Idumah CI, Nwuzor IC, Odera SR, Timothy UJ, Ngenegbo U, Tanjung FA. Recent advances in polymeric hydrogel nanoarchitectures for drug delivery applications. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2120875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - I. C. Nwuzor
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - S. R. Odera
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - U. J. Timothy
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - U. Ngenegbo
- Department of Parasitology and Entomology, Faculty of Biosciences, Nnamdi Azikiwe University, Awka, Nigeria
| | - F. A. Tanjung
- Faculty of Science and Technology, Universitas Medan Area, Medan, Indonesia
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17
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Okonkwo UC, Idumah CI, Okafor CE, Ohagwu CC, Aronu ME, Okokpujie IP, Chukwu NN, Chukwunyelu CE. Development, Characterization, and Properties of Polymeric Nanoarchitectures for Radiation Attenuation. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02420-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Idumah CI. Emerging advancements in MXene polysaccharide bionanoarchitectures and biomedical applications. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2098297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University Awka, Awka, Anambra State, Nigeria
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19
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Idumah CI. Recently emerging advancements in polymeric cryogel nanostructures and biomedical applications. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2097678] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University Awka, Awka, Nigeria
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20
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Idumah CI. Recently Emerging Trends in Magnetic Polymer Hydrogel Nanoarchitectures. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2022.2033769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
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21
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Idumah CI, Ezeani OE, Okonkwo UC, Nwuzor IC, Odera SR. Novel Trends in MXene/Conducting Polymeric Hybrid Nanoclusters. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02243-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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22
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Ilyas M, Mian SA, Rauf A, Ahmed E, Rahman G, Sannyal A, Jang J. Stimulated reversal of the strong adhesion of catechol onto a silica surface. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Muhammad Ilyas
- Department of Physics University of Peshawar Peshawar Pakistan
| | | | - Abdur Rauf
- Department of Physics Islamia College University Peshawar Pakistan
| | - Ejaz Ahmed
- Department of Physics Abdul Wali Khan University Mardan Pakistan
| | - Gul Rahman
- Institute of Chemical Sciences University of Peshawar Peshawar Pakistan
| | - Arindam Sannyal
- Department of Nanoenergy Engineering Pusan National University Busan South Korea
| | - Joonkyung Jang
- Department of Nanoenergy Engineering Pusan National University Busan South Korea
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23
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Khaskhoussi A, Calabrese L, Patané S, Proverbio E. Effect of Chemical Surface Texturing on the Superhydrophobic Behavior of Micro-Nano-Roughened AA6082 Surfaces. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7161. [PMID: 34885310 PMCID: PMC8658164 DOI: 10.3390/ma14237161] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/16/2021] [Accepted: 11/21/2021] [Indexed: 11/30/2022]
Abstract
Superhydrophobic surfaces on 6082 aluminum alloy substrates are tailored by low-cost chemical surface treatments coupled to a fluorine-free alkyl-silane coating deposition. In particular, three different surface treatments are investigated: boiling water, HF/HCl, and HNO3/HCl etching. The results show that the micro-nano structure and the wetting behavior are greatly influenced by the applied surface texturing treatment. After silanization, all the textured surfaces exhibit a superhydrophobic behavior. The highest water contact angle (WCA, ≈180°) is obtained by HF/HCl etching. Interestingly, the water sliding angle (WSA) is affected by the anisotropic surface characteristics. Indeed, for the HF/HCl and the HNO3/HCl samples, the WSA in the longitudinal direction is lower than the transversal one, which slightly affects the self-cleaning capacity. The results point out that the superhydrophobic behavior of the aluminum alloys surface can be easily tailored by performing a two-step procedure: (i) roughening treatment and (ii) surface chemical silanization. Considering these promising results, the aim of further studies will be to improve the knowledge and optimize the process parameters in order to tailor a superhydrophobic surface with an effective performance in terms of stability and durability.
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Affiliation(s)
- Amani Khaskhoussi
- Department of Engineering, University of Messina, Contrada di Dio Sant’Agata, 98166 Messina, Italy;
| | - Luigi Calabrese
- Department of Engineering, University of Messina, Contrada di Dio Sant’Agata, 98166 Messina, Italy;
| | - Salvatore Patané
- Department of Mathematics and Computer Science, Physical Sciences and Earth Science, University of Messina, Viale F.S. D’Alcontres No. 31, 98166 Messina, Italy;
| | - Edoardo Proverbio
- Department of Engineering, University of Messina, Contrada di Dio Sant’Agata, 98166 Messina, Italy;
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24
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Silva AO, Cunha RS, Hotza D, Machado RAF. Chitosan as a matrix of nanocomposites: A review on nanostructures, processes, properties, and applications. Carbohydr Polym 2021; 272:118472. [PMID: 34420731 DOI: 10.1016/j.carbpol.2021.118472] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/19/2021] [Accepted: 07/19/2021] [Indexed: 01/30/2023]
Abstract
Chitosan is a biopolymer that is natural, biodegradable, and relatively low price. Chitosan has been attracting interest as a matrix of nanocomposites due to new properties for various applications. This study presents a comprehensive overview of common and recent advances using chitosan as a nanocomposite matrix. The focus is to present alternative processes to produce embedded or coated nanoparticles, and the shaping techniques that have been employed (3D printing, electrospinning), as well as the nanocomposites emerging applications in medicine, tissue engineering, wastewater treatment, corrosion inhibition, among others. There are several reviews about single chitosan material and derivatives for diverse applications. However, there is not a study that focuses on chitosan as a nanocomposite matrix, explaining the possibility of nanomaterial additions, the interaction of the attached species, and the applications possibility following the techniques to combine chitosan with nanostructures. Finally, future directions are presented for expanding the applications of chitosan nanocomposites.
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Affiliation(s)
- Angelo Oliveira Silva
- Department of Chemical and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
| | - Ricardo Sousa Cunha
- Department of Chemical and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
| | - Dachamir Hotza
- Department of Chemical and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
| | - Ricardo Antonio Francisco Machado
- Department of Chemical and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil.
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25
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Drawing inspiration from nature to develop anti-fouling coatings: the development of biomimetic polymer surfaces and their effect on bacterial fouling. PURE APPL CHEM 2021. [DOI: 10.1515/pac-2021-0108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
The development of self-cleaning biomimetic surfaces has the potential to be of great benefit to human health, in addition to reducing the economic burden on industries worldwide. Consequently, this study developed a biomimetic wax surface using a moulding technique which emulated the topography of the self-cleaning Gladiolus hybridus (Gladioli) leaf. A comparison of topographies was performed for unmodified wax surfaces (control), biomimetic wax surfaces, and Gladioli leaves using optical profilometry and scanning electron microscopy. The results demonstrated that the biomimetic wax surface and Gladioli leaf had extremely similar surface roughness parameters, but the water contact angle of the Gladioli leaf was significantly higher than the replicated biomimetic surface. The self-cleaning properties of the biomimetic and control surfaces were compared by measuring their propensity to repel Escherichia coli and Listeria monocytogenes attachment, adhesion, and retention in mono- and co-culture conditions. When the bacterial assays were carried out in monoculture, the biomimetic surfaces retained fewer bacteria than the control surfaces. However, when using co-cultures of the bacterial species, only following the retention assays were the bacterial numbers reduced on the biomimetic surfaces. The results demonstrate that such surfaces may be effective in reducing biofouling if used in the appropriate medical, marine, and industrial scenarios. This study provides valuable insight into the anti-fouling physical and chemical control mechanisms found in plants, which are particularly appealing for engineering purposes.
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26
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Gąsiorek J, Mazur-Nowacka A, Szczurek A, Babiarczuk B, Tic WJ, Guziałowska-Tic J, Kaleta J, Krzak J. Influence of Zirconia and Organic Additives on Mechanical and Electrochemical Properties of Silica Sol-Gel Coatings. MATERIALS (BASEL, SWITZERLAND) 2021; 14:2389. [PMID: 34064371 PMCID: PMC8124161 DOI: 10.3390/ma14092389] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 04/23/2021] [Accepted: 04/28/2021] [Indexed: 01/27/2023]
Abstract
This paper presents the result of the investigation of organically modified silica (ORMOSIL)-zirconia coatings used to enhance their protective properties, namely corrosion and scratch resistance. Two different materials, i.e., SiO2/ZrO2 and SiO2/GPTMS/ZrO2, were synthesized, measured, and analyzed to find the difference in the used organosilane precursor (dimethyldiethoxysilane and (3-glycidoxypropyl)trimethoxysilane, respectively). SiO2/ZrO2 coatings showed higher hardness than SiO2/GPTMS/ZrO2. Moreover, the value of polarization resistance (Rp) for SiO2/GPTMS/ZrO2 coated 316L steel relative to the uncoated one was obtained. It was nearly 84 times higher. The coating delamination was observed with load 16N. Additionally, the corrosion mitigation for 316L coated by SiO2/GPTMS/ZrO2 was observed even after extended exposure to corrosion agents.
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Affiliation(s)
- Jolanta Gąsiorek
- Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372 Wroclaw, Poland; (A.S.); (B.B.); (J.K.)
| | - Anna Mazur-Nowacka
- Faculty of Chemistry, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372 Wroclaw, Poland;
| | - Anna Szczurek
- Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372 Wroclaw, Poland; (A.S.); (B.B.); (J.K.)
| | - Bartosz Babiarczuk
- Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372 Wroclaw, Poland; (A.S.); (B.B.); (J.K.)
| | - Wilhelm Jan Tic
- West Technology & Trading Polska, Sp. z o.o., Oświęcimska 100E, 45-641 Opole, Poland; (W.J.T.); (J.G.-T.)
- Department of Process and Environmental Engineering, Opole University of Technology, 45-758 Opole, Poland
| | - Joanna Guziałowska-Tic
- West Technology & Trading Polska, Sp. z o.o., Oświęcimska 100E, 45-641 Opole, Poland; (W.J.T.); (J.G.-T.)
- Department of Process and Environmental Engineering, Opole University of Technology, 45-758 Opole, Poland
| | - Jerzy Kaleta
- Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372 Wroclaw, Poland; (A.S.); (B.B.); (J.K.)
| | - Justyna Krzak
- Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372 Wroclaw, Poland; (A.S.); (B.B.); (J.K.)
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27
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Affiliation(s)
- Christopher Igwe Idumah
- Faculty of Engineering, Department of Polymer and Textile Engineering, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria
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28
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Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer and Textile Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
- Enhanced Polymer Research Group, Universiti Teknologi Malaysia
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29
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Idumah CI, Ezeani E, Nwuzor I. A review: advancements in conductive polymers nanocomposites. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1850783] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Christopher Igwe Idumah
- Nnamdi Azikiwe University, Faculty of Engineering, Department of Polymer and Textile Engineering, Awka, Nigeria
- EnPro, Universiti Teknologi Malaysia
| | - E.O Ezeani
- Nnamdi Azikiwe University, Faculty of Engineering, Department of Polymer and Textile Engineering, Awka, Nigeria
| | - I.C Nwuzor
- Nnamdi Azikiwe University, Faculty of Engineering, Department of Polymer and Textile Engineering, Awka, Nigeria
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30
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Idumah CI. Recent advancements in conducting polymer bionanocomposites and hydrogels for biomedical applications. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1857384] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer and Textile Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria
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