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Morici E, Infurna G, Dintcheva NT. Ecofriendly Biopolymer-Based Nanocomposite Films with Improved Photo-Oxidative Resistance. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5778. [PMID: 36013914 PMCID: PMC9412501 DOI: 10.3390/ma15165778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
The interest towards high performance biopolymer-based materials increases continuously and, to guarantee appropriately industrial applications, the photo-oxidative resistance and stability of these materials must be adequately addressed. In this study, innovative biopolymer-based nanocomposites, i.e., Polyamide 11 (PA11), containing ad-hoc modified Layered Double Hydroxides (LDH), were successfully formulated and characterized. Particularly, LDH were considered carriers for hindered amine light stabilizing molecules, so two different hindered amine moieties (HALS1 and HALS2) were anchored on LDH layered internal structures and/or outer surfaces. The presence of HALS1 and HALS2 in LDH were confirmed by X-ray diffraction, spectroscopy, and thermogravimetric analysis. Then, the novel LDH-HALS nanofillers (here named LDH-HALS1 and LDH-HALS2) were introduced into a PA11 matrix by melt mixing at 5 wt.%; the produced nanocomposites were characterized by differential scanning calorimetry, rheological, and morphological analysis. All obtained results suggest that the LDH-HALS1/HALS2 nanofillers were very well dispersed into the PA11 matrix. Additionally, the photo-oxidative resistance of the PA11-based nanocomposite films was evaluated by subjecting thin films to UVB exposure and the degradation process was monitored by spectroscopic analysis over time. The photo-oxidative resistance of the PA11/LDH-HALS1/HALS2 was compared to that of PA11-based nanocomposites containing unmodified LDH and the commercial hindered amine UV-stabilizer (Cyasorb® UV-3853). It was established that by anchoring the hindered amine moieties to the LDH, the PA11 nanocomposites were successfully protected against UVB exposure. This was because the hindered amine light stabilizing molecules were available to act at the critical zone where the degradation phenomena occur, which is at the interface between the matrix and the inorganic particles.
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Affiliation(s)
- Elisabetta Morici
- Dipartimento di Ingegneria, Università degli Studi di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy
- ATeN Center, Università di Palermo, Viale delle Scienze, Ed. 18, 90128 Palermo, Italy
| | - Giulia Infurna
- Dipartimento di Ingegneria, Università degli Studi di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy
| | - Nadka Tz. Dintcheva
- Dipartimento di Ingegneria, Università degli Studi di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy
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2
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Naseem S, Wießner S, Kühnert I, Leuteritz A. Layered Double Hydroxide (MgFeAl-LDH)-Based Polypropylene (PP) Nanocomposite: Mechanical Properties and Thermal Degradation. Polymers (Basel) 2021; 13:3452. [PMID: 34641267 PMCID: PMC8512664 DOI: 10.3390/polym13193452] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/01/2021] [Accepted: 10/05/2021] [Indexed: 12/01/2022] Open
Abstract
This work analyzes the thermal degradation and mechanical properties of iron (Fe)-containing MgAl layered double hydroxide (LDH)-based polypropylene (PP) nanocomposite. Ternary metal (MgFeAl) LDHs were prepared using the urea hydrolysis method, and Fe was used in two different concentrations (5 and 10 mol%). Nanocomposites containing MgFeAl-LDH and PP were prepared using the melt mixing method by a small-scale compounder. Three different loadings of LDHs were used in PP (2.5, 5, and 7.5 wt%). Rheological properties were determined by rheometer, and flammability was studied using the limiting oxygen index (LOI) and UL94 (V and HB). Color parameters (L*, a*, b*) and opacity of PP nanocomposites were measured with a spectrophotometer. Mechanical properties were analyzed with a universal testing machine (UTM) and Charpy impact test. The thermal behavior of MgFeAl-LDH/PP nanocomposites was studied using differential scanning calorimeter (DSC) and thermogravimetric analysis (TGA). The morphology of LDH/PP nanocomposites was analyzed with a scanning electron microscope (SEM). A decrease in melt viscosity and increase in burning rate were observed in the case of iron (Fe)-based PP nanocomposites. A decrease in mechanical properties interpreted as increased catalytic degradation was also observed in iron (Fe)-containing PP nanocomposites. Such types of LDH/PP nanocomposites can be useful where faster degradation or faster recycling of polymer nanocomposites is required because of environmental issues.
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Affiliation(s)
- Sajid Naseem
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany; (S.W.); (I.K.); (A.L.)
- Institute of Materials Science, Technische Universität Dresden, 01062 Dresden, Germany
| | - Sven Wießner
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany; (S.W.); (I.K.); (A.L.)
- Institute of Materials Science, Technische Universität Dresden, 01062 Dresden, Germany
| | - Ines Kühnert
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany; (S.W.); (I.K.); (A.L.)
| | - Andreas Leuteritz
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany; (S.W.); (I.K.); (A.L.)
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3
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Abstract
Counteracting reactive oxygen species (ROS, e.g., superoxide radical ion, H2O2 and hydroxyl radical) is an important task in fighting against oxidative stress-related illnesses and in improving product quality in industrial manufacturing processes. This review focuses on the recent advances on two-dimensional (2D) nanomaterials of antioxidant activity, which are designed for effective decomposition of ROS and thus, for reduction of oxidative stress. Some materials featured in this paper are of uni- or multi-lamellar structures modified with small molecular or enzymatic antioxidants. Others are enzyme-mimicking synthetic compounds (the so-called nanozymes) prepared without antioxidant additives. However, carbon-based materials will not be included, as they were extensively reviewed in the recent past from similar aspects. Given the landmark development around the 2D materials used in various bio-applications, sheet-like antioxidant compounds are of great interest in the scientific and technological communities. Therefore, the authors hope that this review on the recent progresses will be helpful especially for researchers working on novel developments to substantially reduce oxidative stress either in biological systems or industrial liquors.
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Zhang Y, Li H, Li M, Liu W, Li Q, Hu Y. Synthesis and Properties of Novel Polyethylene‐Based Antioxidants with Hindered Phenols as Side Groups. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900410] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yin Zhang
- Beijing National Laboratory of Molecular SciencesCAS Key Laboratory of Engineering PlasticsInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- School of Chemical ScienceUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Huayi Li
- Beijing National Laboratory of Molecular SciencesCAS Key Laboratory of Engineering PlasticsInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Mengru Li
- Polymer Materials and Engineering DepartmentSchool of Materials Science and EngineeringChang'an University Xi'an 710064 China
| | - Weiwei Liu
- Beijing National Laboratory of Molecular SciencesCAS Key Laboratory of Engineering PlasticsInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Qian Li
- Beijing National Laboratory of Molecular SciencesCAS Key Laboratory of Engineering PlasticsInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Youliang Hu
- Beijing National Laboratory of Molecular SciencesCAS Key Laboratory of Engineering PlasticsInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
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5
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Quispe-Dominguez R, Naseem S, Leuteritz A, Kuehnert I. Synthesis and characterization of MgAl-DBS LDH/PLA composite by sonication-assisted masterbatch (SAM) melt mixing method. RSC Adv 2019; 9:658-667. [PMID: 35517586 PMCID: PMC9059520 DOI: 10.1039/c8ra08780f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 12/20/2018] [Indexed: 12/01/2022] Open
Abstract
This research work is based on the comparison of the mixing phenomena of magnesium–aluminum (MgAl) layered double hydroxides (LDHs) intercalated by dodecylbenzene sulfonate (MgAl-DBS) in poly(lactic acid) (PLA). Two mixing techniques were used to compare the dispersion of LDHs in PLA such as sonication-assisted masterbatch (SAM) melt mixing and direct melting (DM) methods. MgAl LDHs synthesized by the urea hydrolysis method and intercalated with DBS anions using anion exchange reaction and were used in different ratios in PLA (1.25, 2.5, and 5 wt%). MgAl LDHs and their anion intercalation were studied by the X-ray diffraction analysis (XRD) method. Different properties of LDH/PLA composites were compared to analyze the effect of these mixing techniques. Dispersion and exfoliation of LDHs in PLA were investigated by X-ray diffraction analysis (XRD) and transmission electron microscopy (TEM). Influences on the rheological properties were evaluated by analyzing the complex viscosities (η*), storage modulus (G′) and loss modulus (G′′) by using a rheometer. The thermal properties, thermal stability and effect on crystallinity of composites made with the two mixing techniques were analyzed by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) respectively. The mixing mechanism and amount of MgAl-DBS LDHs have a notable effect on the properties of PLA composites with sonication-assisted masterbatch melt mixing techniques giving better dispersion of LDHs in PLA composites as compared to direct melt mixing. This research work is based on the comparison of the mixing phenomena of magnesium–aluminum (MgAl) layered double hydroxides (LDHs) intercalated by dodecylbenzene sulfonate (MgAl-DBS) in poly(lactic acid) (PLA).![]()
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Affiliation(s)
| | - Sajid Naseem
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
| | | | - Ines Kuehnert
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
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Naseem S, Gevers B, Boldt R, Labuschagné FJJ, Leuteritz A. Comparison of transition metal (Fe, Co, Ni, Cu, and Zn) containing tri-metal layered double hydroxides (LDHs) prepared by urea hydrolysis. RSC Adv 2019; 9:3030-3040. [PMID: 35518998 PMCID: PMC9059937 DOI: 10.1039/c8ra10165e] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 01/16/2019] [Indexed: 11/25/2022] Open
Abstract
This paper details a successful synthesis and comparison of a range of tri-metal hydrotalcite-like layered double hydroxides (LDHs) using urea hydrolysis. Transition-metal-substituted MgMAl-LDHs were synthesized with M = Fe, Co, Ni, Cu or Zn. 5 mol% and 10 mol% substitutions were performed, where Mg was substituted with Co, Ni, Cu and Zn, and Al with Fe. The successful synthesis of crystalline MgMAl-LDHs was confirmed using X-ray powder diffraction (XRD) analysis. Energy-dispersive X-ray (EDX) spectroscopy was used to identify substituted metals and determine changes in composition. Changes in morphology were studied using scanning electron microscopy (SEM). Thermogravimetric analysis was used to determine the effect of Fe-, Co-, Ni-, Cu- or Zn-substitution on the thermal degradation of the MgMAl-LDH phase. The structure, morphology and thermal behavior of the LDHs were shown to be influenced by the substituted transition metals. The observed thermal stability took the order MgNiAl- > MgFeAl- = MgAl- ≥ MgCoAl- > MgCuAl- > MgZnAl-LDH. The urea hydrolysis method was shown to be a simple preparation method for well-defined crystallite structures with large hexagonal platelets and good distribution of transition metal atoms in the substituted LDHs. This paper details a successful synthesis and comparison of a range of tri-metal hydrotalcite-like layered double hydroxides (LDHs) using urea hydrolysis.![]()
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Affiliation(s)
- Sajid Naseem
- Leibniz-Institut für Polymerforschung Dresden e. V
- Dresden
- Germany
| | - Bianca Gevers
- Department of Chemical Engineering
- University of Pretoria
- Pretoria
- South Africa
| | - Regine Boldt
- Leibniz-Institut für Polymerforschung Dresden e. V
- Dresden
- Germany
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7
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Naseem S, Lonkar SP, Leuteritz A, Labuschagné FJJ. Different transition metal combinations of LDH systems and their organic modifications as UV protecting materials for polypropylene (PP). RSC Adv 2018; 8:29789-29796. [PMID: 35547309 PMCID: PMC9085274 DOI: 10.1039/c8ra05447a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 08/07/2018] [Indexed: 11/21/2022] Open
Abstract
In this research, the use of layered double hydroxides (LDHs) as ultraviolet (UV) light-protecting additives for PP is explored. Different LDHs, such as ZnTi, ZnSn, ZnGa, ZnCr and CdCr LDHs, were prepared and their UV absorptions were characterized. The ZnTi LDHs showed higher UV absorption than the other four metallic combinations and were further organically modified with dodecylbenzene sodium sulfonate (SDBS) and lauric acid (LA). Nanocomposites of polypropylene (PP) with four different types of LDHs, ZnTi, ZnSn, ZnTi-SDBS and ZnTi-LA, were prepared at concentrations of 5%. The crystallinities and layered structures of all the metallic combinations of LDHs were characterized by wide angle X-ray spectroscopy (WAXS) and ultraviolet visible (UV-vis) absorption spectroscopy, and their crystal morphologies were studied by scanning electron microscopy (SEM). The decomposition and thermal properties of the nanocomposites and pure PP were analyzed by thermogravimetric analysis (TGA) and transmission electron microscopy (TEM) and by their photo-oxidation behavior. The addition of these organically modified and unmodified LDHs showed significant changes in the thermal decomposition of PP. The thermal stability of PP was increased to around 70 °C by the addition of SDBS-modified ZnTi LDHs (5% by weight), and an increase in induction time of about 300% was determined. In this research, the use of layered double hydroxides (LDHs) as ultraviolet (UV) light-protecting additives for PP is explored.![]()
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Affiliation(s)
- Sajid Naseem
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
| | - Sunil P. Lonkar
- Department of Chemical Engineering
- Khalifa University
- Abu Dhabi
- United Arab Emirates
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8
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Salguero Y, García MC, Mosconi G, Rojas R. Structural and morphological aspects of (fluoro)quinolone delivery by layered double hydroxide nanoparticles. NEW J CHEM 2018. [DOI: 10.1039/c8nj03072c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis conditions affect the composition and morphology of LDH-based delivery systems loaded with nalidixic acid and, consequently, their biopharmaceutical behavior.
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Affiliation(s)
- Yadira Salguero
- INFIQC-CONICET
- Departamento de Fisicoquímica
- Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba. Ciudad Universitaria
- Córdoba
| | - Mónica Cristina García
- UNITEFA-CONICET
- Departamento de Ciencias Farmacéuticas. Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba. Ciudad Universitaria
- Córdoba
- Argentina
| | - Giuliana Mosconi
- IPQA-CONICET
- Departamento de Química Orgánica
- Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba. Ciudad Universitaria
- Córdoba
| | - Ricardo Rojas
- INFIQC-CONICET
- Departamento de Fisicoquímica
- Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba. Ciudad Universitaria
- Córdoba
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9
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Grafting of Hindered Phenol Groups onto Ethylene/α-Olefin Copolymer by Nitroxide Radical Coupling. Polymers (Basel) 2017; 9:polym9120670. [PMID: 30965973 PMCID: PMC6418857 DOI: 10.3390/polym9120670] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 11/29/2017] [Accepted: 11/30/2017] [Indexed: 11/17/2022] Open
Abstract
The covalent immobilization of hindered phenol groups, with potential antioxidant activity, onto an ethylene/α-olefin (EOC) copolymer was carried out by the nitroxide radical coupling (NRC) reaction performed in the melt with a peroxide and the 3,5-di-tert-butyl-4-hydroxybenzoyl-2,2,6,6-tetramethylpiperidine-1-oxyl radical (BHB-T). Functionalized EOC (EOC-g-(BHB-T)) was exposed to photo- and thermo-oxidation. By comparison with some model compounds bearing the (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) moiety or the hindered phenol unit, it was observed that the grafted BHB-T could effectively help the stabilization of the polymer matrix both under photo- and thermo-oxidation. In addition, the immobilization of BHB-T can effectively increase the service life of the functionalized polymers when polymer films were put in contact with ethanol solution thus simulating a possible application of the modified polymer.
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Totaro G, Sisti L, Celli A, Askanian H, Hennous M, Verney V, Leroux F. Chain extender effect of 3-(4-hydroxyphenyl)propionic acid/layered double hydroxide in PBS bionanocomposites. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.06.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Jenisha Barnabas M, Parambadath S, Ha CS. Amino modified core–shell mesoporous silica based layered double hydroxide (MS-LDH) for drug delivery. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.05.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Zhang Q, Jiao Q, Leroux F, Tang P, Li D, Feng Y. Antioxidant intercalated hydrocalumite as multifunction nanofiller for Poly(propylene): Synthesis, thermal stability, light stability, and anti-migration property. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.04.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Zhang Q, Jiao Q, Leroux F, Tang P, Li D, Feng Y. Antioxidant intercalated Zn-containing layered double hydroxides: preparation, performance and migration properties. NEW J CHEM 2017. [DOI: 10.1039/c6nj03544b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Zn-containing LDH/PP composition has a high thermal stability and anti-migration ability, and is a highly promising candidate for possible applications.
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Affiliation(s)
- Qian Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Qian Jiao
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Fabrice Leroux
- Universite Clermont Auvergne
- Institut de Chimie de Clermont-Ferrand ICCF
- UMR-CNRS n 6296
- F_63171 Aubière
- France
| | - Pinggui Tang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Dianqing Li
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Yongjun Feng
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
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14
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Thermo-oxidative stabilization of poly(lactic acid) with antioxidant intercalated layered double hydroxides. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.08.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Nagendra B, Das A, Leuteritz A, Gowd EB. Structure and crystallization behaviour of syndiotactic polystyrene/layered double hydroxide nanocomposites. POLYM INT 2016. [DOI: 10.1002/pi.5055] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Baku Nagendra
- Materials Science and Technology Division; CSIR National Institute for Interdisciplinary Science and Technology Division; Trivandrum- 695019 Kerala India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110 001 India
| | - Amit Das
- Leibniz Institute of Polymer Research Dresden; Hohe Strasse 6 D-01069 Dresden Germany
| | - Andreas Leuteritz
- Leibniz Institute of Polymer Research Dresden; Hohe Strasse 6 D-01069 Dresden Germany
| | - E Bhoje Gowd
- Materials Science and Technology Division; CSIR National Institute for Interdisciplinary Science and Technology Division; Trivandrum- 695019 Kerala India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110 001 India
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16
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Nam HJ, Park EB, Jung DY. Bioinspired polydopamine-layered double hydroxide nanocomposites: controlled synthesis and multifunctional performance. RSC Adv 2016. [DOI: 10.1039/c5ra28103b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Interlayer polymerization of dopamine into a LDH layer enabled the preparation of multifunctional hybrid nanostructures with strong adhesion and high specific capacitance.
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Affiliation(s)
- Hye Jin Nam
- Department of Chemistry
- Sungkyunkwan Advanced Institute of Nano Technology
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - Eun Bi Park
- Department of Chemistry
- Sungkyunkwan Advanced Institute of Nano Technology
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - Duk-Young Jung
- Department of Chemistry
- Sungkyunkwan Advanced Institute of Nano Technology
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
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17
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Production of NiAl-layered double hydroxide intercalated with bio-safe amino acid containing organic dianion and its utilization in formation of LDH/poly(amide-imide) nanocomposites. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0663-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Wang WR, Li A, Mei W, Zhu RR, Li K, Sun XY, Qian YC, Wang SL. Dexamethasone sodium phosphate intercalated layered double hydroxides and their therapeutic efficacy in a murine asthma model. RSC Adv 2015. [DOI: 10.1039/c4ra09977j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic diagram showing the intercalation of Dexa into the MgAl–LDH interlayers.
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Affiliation(s)
- Wen-Rui Wang
- Research Center for Translational Medicine at East Hospital
- School of Life Science and Technology
- Tongji University
- Shanghai
- PR China
| | - Ang Li
- Research Center for Translational Medicine at East Hospital
- School of Life Science and Technology
- Tongji University
- Shanghai
- PR China
| | - Wei Mei
- Research Center for Translational Medicine at East Hospital
- School of Life Science and Technology
- Tongji University
- Shanghai
- PR China
| | - Rong-Rong Zhu
- Research Center for Translational Medicine at East Hospital
- School of Life Science and Technology
- Tongji University
- Shanghai
- PR China
| | - Kun Li
- Research Center for Translational Medicine at East Hospital
- School of Life Science and Technology
- Tongji University
- Shanghai
- PR China
| | - Xiao-Yu Sun
- Research Center for Translational Medicine at East Hospital
- School of Life Science and Technology
- Tongji University
- Shanghai
- PR China
| | - Ye-Chang Qian
- Department of Respiratory Medicine
- Shanghai Baoshan Central Hospital
- Shanghai
- PR China
| | - Shi-Long Wang
- Research Center for Translational Medicine at East Hospital
- School of Life Science and Technology
- Tongji University
- Shanghai
- PR China
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19
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Kutlu B, Schröttner P, Leuteritz A, Boldt R, Jacobs E, Heinrich G. Preparation of melt-spun antimicrobially modified LDH/polyolefin nanocomposite fibers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 41:8-16. [PMID: 24907731 DOI: 10.1016/j.msec.2014.04.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/17/2014] [Accepted: 04/07/2014] [Indexed: 11/29/2022]
Abstract
Layered double hydroxide (LDH) was synthesized and organically modified with camphorsulfonic acid (CSA) and ciprofloxacin. The thermal stability of CSA was improved remarkably under LDH shielding. A minimal inhibitory concentration of free CSA against tested bacteria was determined in order to define the essential quantity in LDH modification. The modified LDHs were melt-compounded with high density polyethylene and the prepared nanocomposites were further melt-spun using a piston-type spinning device. The melt-spun fibers were tested for their antimicrobial activity against Escherichia coli, Proteus vulgaris, Pseudomonas aeruginosa, Enterobacter cloacae, Staphylococcus aureus, Staphylococcus epidermidis, and Streptococcus pyogenes. CSA integrated fibers show susceptibility against Gram-positive bacteria and ciprofloxacin integrated fibers showed activity against both Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Burak Kutlu
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany; Technische Universität Dresden, Institut für Werkstoffwissenschaft, 01062 Dresden, Germany.
| | - Percy Schröttner
- Technische Universität Dresden, Institut für Med. Mikrobiologie und Hygiene, 01307 Dresden, Germany
| | - Andreas Leuteritz
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Regine Boldt
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Enno Jacobs
- Technische Universität Dresden, Institut für Med. Mikrobiologie und Hygiene, 01307 Dresden, Germany
| | - Gert Heinrich
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany; Technische Universität Dresden, Institut für Werkstoffwissenschaft, 01062 Dresden, Germany
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Zhang Z, Chen G, Liu J. Tunable photoluminescence of europium-doped layered double hydroxides intercalated by coumarin-3-carboxylate. RSC Adv 2014. [DOI: 10.1039/c3ra46930a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Sanporean (née Potarniche) CG, Vuluga Z, Radovici C, Panaitescu DM, Iorga M, Christiansen JD, Mosca A. Polypropylene/organoclay/SEBS nanocomposites with toughness–stiffness properties. RSC Adv 2014. [DOI: 10.1039/c3ra45325a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Bussière PO, Peyroux J, Chadeyron G, Therias S. Influence of functional nanoparticles on the photostability of polymer materials: Recent progress and further applications. Polym Degrad Stab 2013. [DOI: 10.1016/j.polymdegradstab.2013.06.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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