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Zhang J, Zeng F, Liu B, Wang Z, Lin X, Zhao H, Wang Y. A biomimetic closed-loop recyclable, long-term durable, extreme-condition resistant, flame-retardant nanocoating synthesized by reversible flocculation assembly. MATERIALS HORIZONS 2023; 10:4551-4561. [PMID: 37564015 DOI: 10.1039/d3mh00720k] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Flame-retardant coatings have attracted increasing attention in mitigating the fire threat of flammable polymer materials. Their durable application inevitably provides high resistance to various complex environments, however, discarded stable materials will turn into another man-made waste disaster. The paradigm shift toward a sustainable future is to combine durability and recyclability of coatings. Herein, we demonstrate a biomimetic coating that reversibly captures active flame-retardant nanomaterials by flocculation assembly using anionic polyacrylamide covering the polyurethane foam surface. Strong hydrogen bonding and microstructural interlocking provide the coating with high durability under complex harsh conditions (underwater, chemical exposure, hydrothermal aging, long-term external extrusion, etc.). Meanwhile, the disassembly/reorganization of the coating can be easily repeated in response to pH stimulation with a recycling rate of 97%. The experiments and theoretical calculations reveal the mechanism of the reversible flocculation assembly. This biomimetic strategy of responsive flocculation assembly opens the way for functional coatings with integrated durability and recyclability.
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Affiliation(s)
- Jiayan Zhang
- The Collaborative Innovation Center for Eco-Friendly and Fire-safety Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Sichuan 610064, China.
| | - Furong Zeng
- The Collaborative Innovation Center for Eco-Friendly and Fire-safety Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Sichuan 610064, China.
| | - Bowen Liu
- The Collaborative Innovation Center for Eco-Friendly and Fire-safety Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Sichuan 610064, China.
| | - Zihao Wang
- The Collaborative Innovation Center for Eco-Friendly and Fire-safety Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Sichuan 610064, China.
| | - Xincen Lin
- The Collaborative Innovation Center for Eco-Friendly and Fire-safety Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Sichuan 610064, China.
| | - Haibo Zhao
- The Collaborative Innovation Center for Eco-Friendly and Fire-safety Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Sichuan 610064, China.
| | - Yuzhong Wang
- The Collaborative Innovation Center for Eco-Friendly and Fire-safety Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Sichuan 610064, China.
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Hisarlı G, Atun G, Ortaboy S, Tüzün E. A systematic study for the removal of anionic dyes by sepiolites modified with a homologous series of trimethylammonium-surfactants from single and binary component solutions. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.1977825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Gül Hisarlı
- Department of Chemistry, Faculty of Engineering, Istanbul University - Cerrahpaşa, Avcılar, Turkey
| | - Gülten Atun
- Department of Chemistry, Faculty of Engineering, Istanbul University - Cerrahpaşa, Avcılar, Turkey
| | - Sinem Ortaboy
- Department of Chemistry, Faculty of Engineering, Istanbul University - Cerrahpaşa, Avcılar, Turkey
| | - Elif Tüzün
- Department of Chemistry, Faculty of Engineering, Istanbul University - Cerrahpaşa, Avcılar, Turkey
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Coating Mechanism of AuNPs onto Sepiolite by Experimental Research and MD Simulation. COATINGS 2019. [DOI: 10.3390/coatings9120785] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The amenability of gold nanoparticles (AuNPs) coating on natural and modified (hexadecyl trimethyl ammonium bromide, CTAB) sepiolite surfaces was studied both experimentally and theoretically. The zeta potential experiments and Fourier transform infrared spectrophotometer (FTIR), environmental scanning electron microscope (ESEM), and transmission electron microscopy (TEM) analyses were carried out with the sepiolite samples in the presence of AuNPs. In addition, the adsorption of three gold-nanoparticles on the sepiolite surface (100) in the absence and presence of CTAB was investigated by molecular dynamics (MD) simulations. The AuNPs showed no significant change in the zeta potential of natural sepiolite surfaces due to negative charges of both the sepiolite and AuNPs at natural pH. The surface charge of modified sepiolite decreased with the increase in AuNPs concentration indicating the significance AuNPs adsorption. FTIR, ESEM, and TEM analyses indicated the coating of AuNPs onto the modified sepiolite surface were higher than that of the natural sepiolite surface. The MD simulation results showed that AuNPs can easily adsorb onto the basal surface of the sepiolite due to its hydrophilicity in the presence and absence of CTAB as indicated in the experimental studies. In short, the modification of sepiolite with CTAB made the charge positive, and in turn considerably increased the AuNPs coating on sepiolite surfaces due to electrostatic attraction.
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Rebitski E, Alcântara ACS, Darder M, Cansian RL, Gómez-Hortigüela L, Pergher SBC. Functional Carboxymethylcellulose/Zein Bionanocomposite Films Based on Neomycin Supported on Sepiolite or Montmorillonite Clays. ACS OMEGA 2018; 3:13538-13550. [PMID: 31458061 PMCID: PMC6644915 DOI: 10.1021/acsomega.8b01026] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 08/14/2018] [Indexed: 05/14/2023]
Abstract
The present work introduces new functional bionanocomposite materials based on layered montmorillonite and fibrous sepiolite clays and two biopolymers (carboxymethylcellulose polysaccharide and zein protein) to produce drug-loaded bionanocomposite films for antibiotic topical delivery. Neomycin, an antibiotic indicated for wound infections, was employed as the model drug in this study. The physical properties and the antimicrobial activity of these materials were evaluated as a function of the type of hybrid and the amount of zein protein incorporated in the bionanocomposite films. In addition, the interfacial and physicochemical properties of these new clay-drug hybrids have been studied through a combination of experimental and computational methodologies, where the computational studies confirm the intercalation of neomycin into the montmorillonite layers and the possible penetration of the drug in the tunnels of sepiolite, as pointed out by N2 adsorption and X-ray diffraction techniques. The antimicrobial activity of these bionanocomposite materials show that the films based on montmorillonite-neomycin display a more pronounced inhibitory effect of the bacterial growth than those prepared with the sepiolite-neomycin hybrid. Such effect can be related to the difficult release of neomycin adsorbed on sepiolite due to a strong interaction between both components.
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Affiliation(s)
- Ediana
P. Rebitski
- Laboratório
de Peneiras Moleculares—LABPEMOL, Instituto de Química, Universidade Federal do Rio Grande do Norte, 59078-970 Natal, RN, Brazil
- Instituto de Ciencia de Materiales de Madrid and Instituto de Catálisis y
Petroleoquímica, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - Ana C. S. Alcântara
- Laboratório
de Peneiras Moleculares—LABPEMOL, Instituto de Química, Universidade Federal do Rio Grande do Norte, 59078-970 Natal, RN, Brazil
- Grupo
de Pesquisa em Materiais Híbridos e Bionanocompósitos
- Bionanos, Departamento de Química, Universidade
Federal do Maranhão, 65080-805 São Luís, MA, Brazil
| | - Margarita Darder
- Instituto de Ciencia de Materiales de Madrid and Instituto de Catálisis y
Petroleoquímica, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - Rogério L. Cansian
- Laboratório
de Biotecnologia, Universidade Regional
Integrada do Alto Uruguai e das Missões, 99700-000 Erechim, RS, Brazil
| | - Luis Gómez-Hortigüela
- Instituto de Ciencia de Materiales de Madrid and Instituto de Catálisis y
Petroleoquímica, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - Sibele B. C. Pergher
- Laboratório
de Peneiras Moleculares—LABPEMOL, Instituto de Química, Universidade Federal do Rio Grande do Norte, 59078-970 Natal, RN, Brazil
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Karataş D, Tekin A, Bahadori F, Çelik MS. Interaction of curcumin in a drug delivery system including a composite with poly(lactic-co-glycolic acid) and montmorillonite: a density functional theory and molecular dynamics study. J Mater Chem B 2017; 5:8070-8082. [DOI: 10.1039/c7tb01964e] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Curcumin as an anticancer agent can be delivered with a composite including poly(lactic-co-glycolic acid) and montmorillonite.
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Affiliation(s)
- D. Karataş
- Istanbul Technical University
- Mineral Processing Engineering Department
- 34469 Maslak
- Turkey
| | - A. Tekin
- Informatics Institute
- Istanbul Technical University
- 34469 Maslak
- Turkey
| | - F. Bahadori
- Department of Pharmaceutical Biotechnology
- Faculty of Pharmacy
- Bezmialem Vakif University
- Fatih
- Turkey
| | - M. S. Çelik
- Istanbul Technical University
- Mineral Processing Engineering Department
- 34469 Maslak
- Turkey
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