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Guo Y, Wang J, Zhang L, Wang J. Rapid chemical reduction synthesis of copper nanoclusters with blue fluorescence for highly sensitive detection of furazolidone. LUMINESCENCE 2024; 39:e4702. [PMID: 38418861 DOI: 10.1002/bio.4702] [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: 01/13/2024] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 03/02/2024]
Abstract
Tannic acid (TA), as a stabilizing agent, was successfully utilized to establish blue-emitting copper nanoclusters (TA-Cu NCs) on the basis of a facile chemical reduction preparation method. Characterization results proved successful synthesis of TA-Cu NCs with uniform size and excellent stability. TA-Cu NCs exhibited a blue emission wavelength at 431 nm when excited at 364 nm. Interestingly, the as-prepared TA-Cu NCs were selectively quenched by furazolidone based on static quenching. In addition, this analysis platform for furazolidone detection had an excellent linear range from 0.5 to 120 μM with a detection limit of 0.074 μM (S/N = 3). Furthermore, the accuracy of this sensing method was successfully confirmed by detecting furazolidone in bovine serum samples, indicating that TA-Cu NCs had bright application prospects.
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Affiliation(s)
- Yuyu Guo
- College of Arts, Taiyuan University of Technology, Jinzhong, Shanxi, China
| | - Jiancheng Wang
- College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong, Shanxi, China
| | - Lili Zhang
- Technical Division, Shanxi iGreen Environmental Protection Technology Co. Ltd., Taiyuan, Shanxi, China
| | - Junkai Wang
- Technical Division, Shanxi iGreen Environmental Protection Technology Co. Ltd., Taiyuan, Shanxi, China
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2
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Akram AH, Naeem N, Khoja AH, Shahzad F, Khattak A, Iftikhar M, Imran K, Al-Anazi A, Din IU, Daood SS. Biomass fly ash as nanofiller to improve the dielectric properties of low-density polyethylene for possible high-voltage applications. Heliyon 2024; 10:e23350. [PMID: 38170112 PMCID: PMC10758817 DOI: 10.1016/j.heliyon.2023.e23350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 01/05/2024] Open
Abstract
Flexible capacitive energy storage applications require polymer nanocomposites with high dielectric properties, which can be accomplished by addition of inorganic nanofillers to the polymer matrix. Low-density polyethylene (LDPE), known for its good dielectric characteristics and wide use in electrical insulation have been investigated for the desired applications. However, the improvement of its breakdown strength still continues with the use of various nanomaterials employed as nanofillers. In this study, a waste-derived material known as biomass fly ash (BFA) as a nanofiller to improve the dielectric properties of LDPE has been explored. BFA exhibits versatility in its composition with various metal oxides, making it an attractive choice as a nanofiller. The BFA-LDPE sheets were prepared using a conventional solvent mixing and subsequent hot-pressing process, incorporating BFA loadings ranging from 1 % to 4 wt%. The effects of different BFA loadings were carefully examined, and the synthesized nanocomposites were extensively characterized using various characterization methods, such as XRD, SEM, FTIR, TGA and dielectric constant measurements, to investigate the crystallographic properties, morphology, chemical composition, and thermal stability. Among all the nanocomposites, 4 wt%BFA-LDPE exhibited the highest dielectric constant, with a value of 11.58, compared to simple LDPE that had a dielectric constant of 8.33. This improvement is ascribed to the synergistic effects of different inorganic metal oxides (SiO2, MgO, and Fe2O3) present in BFA. The results showed a significant enhancement in dielectric properties, indicating that the waste-derived BFA can be purposefully applied as an effective nanofiller in the LDPE-based composites with even less than 4% loading for electrical insulating applications in future studies.
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Affiliation(s)
- Atizaz Hussain Akram
- U.S.-Pakistan Centre for Advanced Studies in Energy (USPCAS-E), National University of Sciences & Technology (NUST), Sector H-12 Islamabad (44000), Pakistan
| | - Nida Naeem
- U.S.-Pakistan Centre for Advanced Studies in Energy (USPCAS-E), National University of Sciences & Technology (NUST), Sector H-12 Islamabad (44000), Pakistan
| | - Asif Hussain Khoja
- U.S.-Pakistan Centre for Advanced Studies in Energy (USPCAS-E), National University of Sciences & Technology (NUST), Sector H-12 Islamabad (44000), Pakistan
| | - Faisal Shahzad
- Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad 45650, Pakistan
| | - Abraiz Khattak
- U.S.-Pakistan Centre for Advanced Studies in Energy (USPCAS-E), National University of Sciences & Technology (NUST), Sector H-12 Islamabad (44000), Pakistan
| | - Muhammad Iftikhar
- Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad 45650, Pakistan
- Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan
| | - Kashif Imran
- U.S.-Pakistan Centre for Advanced Studies in Energy (USPCAS-E), National University of Sciences & Technology (NUST), Sector H-12 Islamabad (44000), Pakistan
| | - Abdulaziz Al-Anazi
- Department of Chemical Engineering, College of Engineering, King Saud University, P. O. Box 800, Riyadh 11421, Saudi Arabia
| | - Israf Ud Din
- Chemistry Department, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Alkharj, 11942, Saudi Arabia
| | - Syed Sheraz Daood
- Institute of Energy and Environmental Engineering, Faculty of Electrical, Energy and Environmental Engineering, University of the Punjab, Lahore 54590, Pakistan
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Ozimek J, Pielichowski K. Recent Advances in Polyurethane/POSS Hybrids for Biomedical Applications. Molecules 2021; 27:molecules27010040. [PMID: 35011280 PMCID: PMC8746980 DOI: 10.3390/molecules27010040] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/17/2021] [Accepted: 12/19/2021] [Indexed: 11/16/2022] Open
Abstract
Advanced organic-inorganic materials-composites, nanocomposites, and hybrids with various compositions offer unique properties required for biomedical applications. One of the most promising inorganic (nano)additives are polyhedral oligomeric silsesquioxanes (POSS); their biocompatibility, non-toxicity, and phase separation ability that modifies the material porosity are fundamental properties required in modern biomedical applications. When incorporated, chemically or physically, into polyurethane matrices, they substantially change polymer properties, including mechanical properties, surface characteristics, and bioactivity. Hence, this review is dedicated to POSS-PU composites that have recently been developed for applications in the biomedical field. First, different modes of POSS incorporation into PU structure have been presented, then recent developments of PU/POSS hybrids as bio-active composites for scaffolds, cardiovascular stents, valves, and membranes, as well as in bio-imaging and cancer treatment, have been described. Finally, characterization and methods of modification routes of polyurethane-based materials with silsesquioxanes were presented.
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Nam J, Jeon E, Moon SY, Park JW. Rearranged Copolyurea Networks for Selective Carbon Dioxide Adsorption at Room Temperature. Polymers (Basel) 2021; 13:polym13224004. [PMID: 34833301 PMCID: PMC8623474 DOI: 10.3390/polym13224004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 12/30/2022] Open
Abstract
Copolyurea networks (co-UNs) were synthesized via crosslinking polymerization of a mixture of tetrakis(4-aminophenyl)methane (TAPM) and melamine with hexamethylene diisocyanate (HDI) using the organic sol-gel polymerization method. The subsequent thermal treatment of between 200 and 400 °C induced the sintering of the powdery polyurea networks to form porous frameworks via urea bond rearrangement and the removal of volatile hexamethylene moieties. Incorporating melamine into the networks resulted in a higher nitrogen content and micropore ratio, whereas the overall porosity decreased with the melamine composition. The rearranged network composed of the tetraamine/melamine units in an 80:20 ratio showed the highest carbon dioxide adsorption quantity at room temperature. The results show that optimizing the chemical structure and porosity of polyurea-based networks can lead to carbon dioxide adsorbents working at elevated temperatures.
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Affiliation(s)
- Junsik Nam
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Korea; (J.N.); (E.J.)
| | - Eunkyung Jeon
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Korea; (J.N.); (E.J.)
| | - Su-Young Moon
- Carbon Resources Institute, Korea Research Institute of Chemical Technology, 141 Gajeongro, Yuseong, Daejeon 34114, Korea;
| | - Ji-Woong Park
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Korea; (J.N.); (E.J.)
- Correspondence:
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Alassod A, Islam SR, Khalaji MS, Tusiime R, Huang W, Xu G. Polypropylene/Lignin/POSS Nanocomposites: Thermal and Wettability Properties, Application in Water Remediation. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3950. [PMID: 34300869 PMCID: PMC8307505 DOI: 10.3390/ma14143950] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/06/2021] [Accepted: 07/01/2021] [Indexed: 12/03/2022]
Abstract
Compositing is an interesting strategy that has always been employed to introduce or enhance desired functionalities in material systems. In this paper, sponges containing polypropylene, lignin, and octavinyl-polyhedral oligomeric silsesquioxane (OV-POSS) were successfully prepared via an easy and elegant strategy called thermally induced phase separation (TIPS). To fully explore the behaviour of different components of prepared sponges, properties were characterized by a thermogravimetric analyser (TGA), differential scanning calorimetry (DSC), Fourier transform infrared measurement (FTIR), and scanning electron microscopy (SEM). Furthermore, wettability properties toward an organic liquid and oil were investigated. The FTIR analysis confirmed the chemical modification of the components. TGA and DSC measurements revealed thermal stability was much better with an increase in OV-POSS content. OV-POSS modified sponges exhibited ultra-hydrophobicity and high oleophilicity with water contact angles of more than 125°. The SEM revealed that POSS molecules acted as a support for reduced surface roughness. Moreover, OV-POSS-based blend sponges showed higher sorption capacities compared with other blend sponges without OV-POSS. The new blend sponges demonstrated a potential for use as sorbent engineering materials in water remediation.
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Affiliation(s)
- Abeer Alassod
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Syed Rashedul Islam
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | | | - Rogers Tusiime
- College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Wanzhen Huang
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Guangbiao Xu
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
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Bredov NS, Nguyen VT, Zaitseva DS, Kireev VV, Gorlov MV, Sokol’skaya IB, Polyakov VA. Structure of the Products of Hydrolytic Copolycondensation of 3-Aminopropyltriethoxysilane and 3-Methacryloxypropyltrimetoxysilane: NMR Study. POLYMER SCIENCE SERIES B 2021. [DOI: 10.1134/s1560090421040047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Loganathan P, Pillai RS, Jeevananthan V, David E, Palanisami N, Bhuvanesh NSP, Shanmugan S. Assembly of discrete and oligomeric structures of organotin double-decker silsesquioxanes: inherent stability studies. NEW J CHEM 2021. [DOI: 10.1039/d1nj03128g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Discrete and oligomeric organotin DDSQs have been synthesized and characterized, both experimentally and through computational study. The stability of these compounds remains intrigued with the organization of their structure in the crystal lattice.
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Affiliation(s)
- Pushparaj Loganathan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
| | - Renjith S. Pillai
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
- Department of Chemistry, Christ University, Bangalore-56029, Karnataka, India
| | - Velusamy Jeevananthan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
| | - Ezhumalai David
- Centre for Functional Materials, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Nallasamy Palanisami
- Centre for Functional Materials, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Nattamai S. P. Bhuvanesh
- X-ray Diffraction Laboratory, Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - Swaminathan Shanmugan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
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Study on the Structure and Dielectric Properties of Zeolite/LDPE Nanocomposite under Thermal Aging. Polymers (Basel) 2020; 12:polym12092108. [PMID: 32947923 PMCID: PMC7569955 DOI: 10.3390/polym12092108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/06/2020] [Accepted: 09/12/2020] [Indexed: 11/16/2022] Open
Abstract
Nanodoping is an effective way to improve the dielectric properties and the aging resistance of polyethylene. Nano-zeolite has a nano-level porous structure and larger specific surface area than ordinary nano-inorganic oxide, which can be used to improve dielectric properties of low-density polyethylene (LDPE) nanocomposite. The zeolite/LDPE nanocomposites were prepared and subjected to thermal aging treatment to obtain samples with different aging time. Using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and the differential scanning calorimetry (DSC) test to study the microscopic and structure characteristics, it was found that nano-zeolite doping can effectively reduce the thermal aging damage to the internal structure of the nanocomposite; carbonyl and hydroxyl decreased significantly during the thermal aging time, and the crystallinity effectively improved. Nano-zeolite doping significantly improved the morphology and strengthened the aging resistance of the nanocomposite. In the dielectric strength test, it was found that nanodoping can effectively improve the direct current (DC) and alternating current (AC) breakdown field strength and the stability after the thermal aging. The dielectric constant of nanocomposite can be reduced, and the dielectric loss had no obvious change during the aging process. Moreover, the zeolite/LDPE nanocomposite with the doping concentration of 1 wt % had the best performance, for the nano-zeolite was better dispersed.
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Ma X, He L, Huang S, Wu Y, Pan A, Liang J. Effect of different molecular architectured POSS-fluoropolymers on their self-assembled hydrophobic coatings. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04739-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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10
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The Effect of Bioactive Glass-Enhanced Orthodontic Bonding Resins on Prevention of Demineralization: A Systematic Review. Molecules 2020; 25:molecules25112495. [PMID: 32471284 PMCID: PMC7321359 DOI: 10.3390/molecules25112495] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 12/12/2022] Open
Abstract
At present, bioactive glasses (BAGs) are demonstrating promising results in the remineralization of hard tissues. Their bioactive properties can potentially overcome the demineralization effect accompanying orthodontic treatment. This review aimed to evaluate the effectiveness of bioactive glass enhanced orthodontic bonding resins on enamel remineralization, in addition to their antibacterial, ion release and acid neutralization effect. Four databases (PubMed, MEDLINE, Web of Science and Scopus) were searched. Two hundred and fifty-one full-text articles were screened independently, out of which seven studies satisfied the inclusion criteria. Quality appraisal was performed by two independent reviewers. Methodologies used to assess the anti-demineralization effect included Micro-Computed Tomography, Polarized Light Microscopy and Hardness Testing (Knoop and Berkovich). All seven articles confirmed the superior remineralization effect of BAG orthodontic bonding resins compared to their non-BAG counterparts. A proportional relationship was proved between BAG concentrations and increased anti-demineralization effect. The addition of antibacterial agents to BAG does not necessarily improve its anti-demineralization effect. Although studies have confirmed the effectiveness of BAG orthodontic bonding resins on enamel remineralization, there was a degree of heterogeneity across studies due to the lack of an in vitro studies standardized protocol.
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Bi-Layered Porous/Cork-Containing Waste-Based Inorganic Polymer Composites: Innovative Material towards Green Buildings. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10092995] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Reduction of the energy consumption and CO2 emissions by the building sector might be a huge driver to mitigate climate change. One promising approach to mitigate energy consumption is the use of lightweight and low thermal-conductivity materials that could reduce the energy losses inside buildings and at the same time the use of heating and cooling devices that generate associated CO2 emissions. In this study, different strategies to produce lightweight and low thermal conductivity inorganic polymers were evaluated and compared, including the first ever production of bi-layered porous/cork-containing waste-based inorganic polymer composites. The bi-layered composites showed the lowest density (461 kg/m3) and thermal conductivity (94.9 mW/m K) values and reasonable compressive strength (0.93 MPa) demonstrating their interesting potential for enhancing the energy efficiency of buildings. Moreover, these composites were produced at room temperature, using an industrial waste (biomass fly ash) as precursor and a highly sustainable and renewable resource as light aggregate (cork), preventing the depletion of natural resources and the use of fossil-fuel derivates, respectively.
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Tahir Gunkara O. Modification of polyhedral oligomeric silsesquioxane derivatives with heck reaction as possible new bio-hybrid materials. PHOSPHORUS SULFUR 2019. [DOI: 10.1080/10426507.2019.1576678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Omer Tahir Gunkara
- Faculty of Science and Arts Chemistry Department, Yildiz Technical University, Istanbul, Turkey
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Arsalani N, Kazeminava F, Akbari A, Hamishehkar H, Jabbari E, Kafil HS. Synthesis of polyhedral oligomeric silsesquioxane nano‐crosslinked poly(ethylene glycol)‐based hybrid hydrogels for drug delivery and antibacterial activity. POLYM INT 2018. [DOI: 10.1002/pi.5748] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nasser Arsalani
- Research Laboratory of Polymer, Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz Iran
| | - Fahimeh Kazeminava
- Research Laboratory of Polymer, Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz Iran
| | - Ali Akbari
- Department of ChemistryUniversity of Maragheh Maragheh Iran
| | - Hamed Hamishehkar
- Drug Applied Research CenterTabriz University of Medical Sciences Tabriz Iran
| | - Esmaiel Jabbari
- Department of Chemical EngineeringUniversity of South Carolina Columbia SC USA
| | - Hossein S Kafil
- Biotechnology Research CenterTabriz University of Medical Sciences Tabriz Iran
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Chlanda A, Oberbek P, Heljak M, Kijeńska-Gawrońska E, Bolek T, Gloc M, John Ł, Janeta M, Woźniak MJ. Fabrication, multi-scale characterization and in-vitro evaluation of porous hybrid bioactive glass polymer-coated scaffolds for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:516-523. [PMID: 30423736 DOI: 10.1016/j.msec.2018.09.062] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 09/07/2018] [Accepted: 09/30/2018] [Indexed: 02/06/2023]
Abstract
Bioactive glass-based scaffolds are commonly used in bone tissue engineering due to their biocompatibility, mechanical strength and adequate porous structure. However, their hydrophobicity and brittleness limits their practical application. In this study, to improve nanomechanical properties of such scaffolds, pure bioactive hybrid glass and two bioactive hybrid glass-polymer coated composites were fabricated. A complementary micro and nanoscale characterization techniques (SEM, AFM, μCT, FTIR, compressive test, goniometer) were implemented for detailed description of architecture and physicochemical properties of hybrid bioactive glass-based scaffolds with emphasis on nano-mechanics. The final step was in-vitro evaluation of three dimensional macroporous structures. Our findings show that after polymer addition, architecture, topography and surface properties of the scaffolds were changed and promoted favoured behaviour of the cells.
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Affiliation(s)
- Adrian Chlanda
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland.
| | - Przemysław Oberbek
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; Central Institute for Labour Protection - National Research Institute, Czerniakowska 16, 00-701 Warsaw, Poland
| | - Marcin Heljak
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland
| | - Ewa Kijeńska-Gawrońska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland
| | - Tomasz Bolek
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland
| | - Michał Gloc
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland
| | - Łukasz John
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - Mateusz Janeta
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - Michał J Woźniak
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; MJW RnD, Nowy Swiat 33/13, 00-029 Warsaw, Poland
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15
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Modification of Polyhedral Oligomeric Silsesquioxanes (POSS) Molecules by Ruthenium Catalyzed Cross Metathesis. Molecules 2018; 23:molecules23071722. [PMID: 30011916 PMCID: PMC6099925 DOI: 10.3390/molecules23071722] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 07/10/2018] [Accepted: 07/11/2018] [Indexed: 11/17/2022] Open
Abstract
The scope of ruthenium (Ru)-catalyzed cross metathesis (CM) of allyl-decorated polyhedral oligomeric silsesquioxanes (POSS) was explored. A variety of different commercial and non-commercial ruthenium complexes were tested to determine that the nitro-activated Ru catalyst is optimal for this transformation. The reported transformation was used to prepare selected hybrid steroid-POSS compounds.
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John Ł. Selected developments and medical applications of organic-inorganic hybrid biomaterials based on functionalized spherosilicates. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 88:172-181. [PMID: 29636133 DOI: 10.1016/j.msec.2018.02.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 01/25/2018] [Accepted: 02/09/2018] [Indexed: 12/30/2022]
Abstract
Well-defined and tailor-made spherosilicates and POSS-based (POSS = Polyhedral Oligomeric Silsesquioxanes) (nano)composites with interesting chemical and mechanical properties have applications in the widely-regarded field of innovative biomaterials. They can serve as delivery systems, three-dimensional scaffolds for specific tissue engineering, biomaterials for orthopedic, cardiovascular, and reconstructive surgery, etc. Such organic-inorganic hybrids are much more effective biomaterials than pure polymers, bioglasses, metals, alloys, and ceramics currently used in medical applications and are considered as next-generation systems in innovative medical approaches. This range of applications creates a strong impetus for novel, cheap, and easy-to-scale-up methods for their synthesis. In this review (highlights since 2006), selected biomaterials consisting of various polymeric derivatives such as polymethacrylates, polylactides, polycaprolactones, polyurethanes, etc., which serve as organic side-arms of POSS and can create polymer platforms for precisely localized spherosilicates among organic matrices, are discussed as a new generation of silicon-based biosystems using spherosilicates, promising biomaterials with a particular use in soft- and hard-tissue engineering.
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Affiliation(s)
- Łukasz John
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland.
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