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Çakıcı GT, Kaya S, Doğan SY, Solak EK. Quercetin-loaded sodium alginate/collagen/h-boron nitride potential wound dressings prepared using the Box-Behnken experimental design. Biotechnol J 2024; 19:e2300147. [PMID: 37897145 DOI: 10.1002/biot.202300147] [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: 04/01/2023] [Revised: 08/17/2023] [Accepted: 10/24/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND/AIMS Natural and synthetic biocompatible polymers have received significant attention in the pharmaceutical industry due to their rapid and effective healing properties in the wound healing process. The aim of this study was to optimize the extraction of onions, the preparation of sodium alginate/collagen/hydrogen boron nitride (NaAlg/Col/h-BN) membranes using the Box-Behnken experimental design, and determine the optimal conditions for quercetin release. The study also aimed to investigate the antimicrobial and antioxidant activities of the prepared membranes and their therapeutic properties. METHODS AND RESULTS The prepared membranes were characterized by scanning electron microscopy (SEM), fourier transform infrared (FTIR), differential scanning calorimetry (DSC), and X-ray diffraction (XRD). Antimicrobial activities were tested against Gram-negative (Gr-) Escherichia coli ATCC 25922, Klebsiella pneumonia, Enterobacter aerogenes, Gram-positive (Gr+) Staphylococcus aureus ATCC 25923, and Candida albicans ATCC 10231 pathogens. In vitro release studies were conducted to examine the therapeutic properties of the prepared membranes. The optimum conditions for the extraction of onions and the preparation of NaAlg/Col/h-BN membranes were found to be EtOH = 75 mL, t = 2 h, T = 45°C, and NaAlg = 1.0 g, Col = 2.0 g, and h-BN = 6% wt, respectively. The prepared membranes exhibited serious antimicrobial properties against S. aureus and C. albicans. The membranes also promoted the controlled release of quercetin for 24 h in vitro, indicating their potential as a new approach in wound treatment. CONCLUSION The study concludes that quercetin-filled NaAlg/Col/h-BN membranes have promising therapeutic properties for wound healing. The membranes exhibited significant antimicrobial and antioxidant properties, and their controlled release of quercetin suggests their potential for use in wound healing applications.
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Affiliation(s)
- Gülşen Taşkın Çakıcı
- Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences, Gazi University, Ankara, Turkey
| | - Seçil Kaya
- Department of Material and Material Processing Technologies, Vocational School of Technical Sciences, Gazi University, Ankara, Turkey
| | - Sema Yiyit Doğan
- Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences, Gazi University, Ankara, Turkey
| | - Ebru Kondolot Solak
- Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences, Gazi University, Ankara, Turkey
- Department of Advanced Technologies, Gazi University, Ankara, Turkey
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Han Y, Liang Y, Liu X, Jia S, Zhao C, Yang L, Ding J, Hong G, Termentzidis K. Stretched three-dimensional white graphene with a tremendous lattice thermal conductivity increase rate. RSC Adv 2022; 12:22581-22589. [PMID: 36105992 PMCID: PMC9376935 DOI: 10.1039/d2ra01869a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 08/05/2022] [Indexed: 11/21/2022] Open
Abstract
Despite the increasing interest in the physical properties of the newly synthesized three-dimensional (3D) nano-architectured graphene, there are still few studies on the thermal transport properties of this family of materials. In the present work, heat transport of 3D h-BN and its mechanical response are systematically explored through first principles calculations. It is fascinating to find that the thermal conductivity of the 3D h-BN honeycomb structure could be significantly modulated by mechanical tension. Its lattice thermal conductivity perpendicular to the hole axis increases by 7.2 times at 6% critical strain, compared to only 0.67 times for that of the strained 3D graphene counterpart. The structure's thermal conductivity versus mechanical tension differs quantitatively and qualitatively from the monotonic downward trend of traditional bulk diamond or silicon under tension. This deviation from the classic behavior could be attributed to the modification of the phonon lifetimes, together with the competition between group velocities of low- and high-lying phonons under strain. Finally, the phonon vibrational modes contribution analysis indicates that the BN ribbon atoms contribute mainly at a lower frequency range. Our results provide important insights into potential employment of nano-architectured 3D white graphene for thermal management in relevant industrial applications. Thermal conductivity of the 3D h-BN honeycomb structure increases by 7.2 times under strain compared to an increase of only 0.67 times in the strained 3D graphene counterpart, differing from behaviors of traditional bulk diamond or silicon.![]()
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Affiliation(s)
- Yang Han
- College of Power and Energy Engineering, Harbin Engineering University, 150001 Harbin, China
| | - Yue Liang
- College of Power and Energy Engineering, Harbin Engineering University, 150001 Harbin, China
| | - Xiaochuang Liu
- College of Power and Energy Engineering, Harbin Engineering University, 150001 Harbin, China
| | - Shijie Jia
- College of Power and Energy Engineering, Harbin Engineering University, 150001 Harbin, China
| | - Chaoxiang Zhao
- College of Power and Energy Engineering, Harbin Engineering University, 150001 Harbin, China
| | - Longbin Yang
- College of Power and Energy Engineering, Harbin Engineering University, 150001 Harbin, China
| | - Jiabao Ding
- Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR 999078, China
| | - Guo Hong
- Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR 999078, China
- Department of Physics and Chemistry, Faculty of Science and Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR 999078, China
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Bias-Enhanced Formation of Metastable and Multiphase Boron Nitride Coating in Microwave Plasma Chemical Vapor Deposition. MATERIALS 2021; 14:ma14237167. [PMID: 34885322 PMCID: PMC8658670 DOI: 10.3390/ma14237167] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/04/2021] [Accepted: 11/15/2021] [Indexed: 11/23/2022]
Abstract
Boron nitride (BN) is primarily a synthetically produced advanced ceramic material. It is isoelectronic to carbon and, like carbon, can exist as several polymorphic modifications. Microwave plasma chemical vapor deposition (MPCVD) of metastable wurtzite boron nitride is reported for the first time and found to be facilitated by the application of direct current (DC) bias to the substrate. The applied negative DC bias was found to yield a higher content of sp3 bonded BN in both cubic and metastable wurtzite structural forms. This is confirmed by X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). Nano-indentation measurements reveal an average coating hardness of 25 GPa with some measurements as high as 31 GPa, consistent with a substantial fraction of sp3 bonding mixed with the hexagonal sp2 bonded BN phase.
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Zhang Z, Duan X, Qiu B, Chen L, Zhang P, Cai D, He P, Zhang H, Wei Z, Yang Z, Jia D, Zhou Y. Microstructure evolution and grain growth mechanisms of h-BN ceramics during hot-pressing. Ann Ital Chir 2020. [DOI: 10.1016/j.jeurceramsoc.2020.02.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hassan J, Ikram M, Ul-Hamid A, Imran M, Aqeel M, Ali S. Application of Chemically Exfoliated Boron Nitride Nanosheets Doped with Co to Remove Organic Pollutants Rapidly from Textile Water. NANOSCALE RESEARCH LETTERS 2020; 15:75. [PMID: 32266606 PMCID: PMC7138897 DOI: 10.1186/s11671-020-03315-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 03/30/2020] [Indexed: 05/26/2023]
Abstract
Two-dimensional layered materials doped with transition metals exhibit enhanced magnetization and improved catalytic stability during water treatment leading to potential environmental applications across several industrial sectors. In the present study, cobalt (Co)-doped boron nitride nanosheets (BN-NS) were explored for such an application. Chemical exfoliation process was used to exfoliate BN-NS and the hydrothermal route was adopted to incorporate Co dopant in various concentrations (e.g., 2.5, 5, 7.5, and 10 wt%). X-ray diffraction (XRD) study indicated that crystallinity improved upon doping with the formation of a hexagonal phase of the synthesized material. Selected area electron diffraction (SAED) confirmed enhanced crystallinity, which corroborates XRD results. Interlayer spacing was evaluated through a high-resolution transmission electron microscope (HR-TEM) equipped with Gatan digital micrograph software. Compositional and functional group analysis was undertaken with energy dispersive X-ray (EDS) and Fourier transform infrared (FTIR) spectroscopy, respectively. Field emission scanning electron microscope (FE-SEM) and HR-TEM were utilized to probe surface morphologies of prepared samples. Bonding modes in the sample were identified through Raman analysis. Optical properties were examined using UV-vis spectroscopy. Photoluminescence spectra were acquired to estimate the separation and recombination of excitons. Magnetic properties were studied by means of hysteresis loop acquired using VSM measurements. Methylene blue dye was degraded with as-prepared host and doped nanosheets used as catalysts and investigated through absorption spectra ranging from 250 to 800 nm. The experimental results of this study indicate that Co-doped BN-NS showed enhanced magnetic properties and can be used to degrade dyes present as an effluent in industrial wastewater.
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Affiliation(s)
- J. Hassan
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, Punjab 54000 Pakistan
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - M. Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, Punjab 54000 Pakistan
| | - A. Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261 Saudi Arabia
| | - M. Imran
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing, 100029 China
| | - M. Aqeel
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, Punjab 54000 Pakistan
| | - S. Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
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Li Y, Garnier V, Journet C, Barjon J, Loiseau A, Stenger I, Plaud A, Toury B, Steyer P. Advanced synthesis of highly crystallized hexagonal boron nitride by coupling polymer-derived ceramics and spark plasma sintering processes-influence of the crystallization promoter and sintering temperature. NANOTECHNOLOGY 2019; 30:035604. [PMID: 30452387 DOI: 10.1088/1361-6528/aaebb4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hexagonal boron nitride nanosheets (BNNSs) are promising 2D materials due to their exceptional chemical and thermal stabilities together with their electrical insulation properties. A combined synthesis method involving the polymer-derived ceramics (PDCs) route and the spark plasma sintering (SPS) process is proposed, leading to well-crystallized and pure layered h-BN crystals, prone to be exfoliated into large BNNSs. Here we focus more specifically on the influence of two key parameters of the process to be optimized: the Li3N concentration (0-10 wt%) and the SPS temperature (1200 °C-1950 °C). The presence of Li3N, added as crystal promoter in the pre-ceramic powder, significantly improves the crystallinity level of the product, as evidenced by XRD, SEM and Raman spectrometry. SPS temperature strongly modifies the size of the resulting h-BN flakes. The influence of SPS temperature on both purity and crystallinity is studied using cathodoluminescence. h-BN flakes larger than 200 μm2 (average flake area) are obtained. Few-layered BNNSs are successfully isolated, through exfoliation process.
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Affiliation(s)
- Yangdi Li
- Univ. Lyon, INSA-Lyon, MATEIS, UMR CNRS 5510, 7 Avenue Jean Capelle, F-69621, Villeurbanne, France. Univ. Lyon, Université Lyon 1, LMI, UMR CNRS 5615, 6 rue Victor Grignard, F-69622, Villeurbanne, France
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Marichy C, Salles V, Jaurand X, Etiemble A, Douillard T, Faugier-Tovar J, Cauwet F, Brioude A. Fabrication of BN membranes containing high density of cylindrical pores using an elegant approach. RSC Adv 2017. [DOI: 10.1039/c7ra03808a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
BN membrane with high density of through cylindrical pores is fabricated by combination of ALD and PDC routes. With good quality h-BN walls obtained at 1000 °C, the obtained membrane is a promising candidate for osmotic energy conversion and water filtration applications.
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Affiliation(s)
- C. Marichy
- Univ Lyon
- Université Claude Bernard Lyon 1
- Laboratoire des Multimatériaux et Interfaces
- UMR CNRS 5615
- F-69622 Villeurbanne
| | - V. Salles
- Univ Lyon
- Université Claude Bernard Lyon 1
- Laboratoire des Multimatériaux et Interfaces
- UMR CNRS 5615
- F-69622 Villeurbanne
| | - X. Jaurand
- Centre Technologique des Microstructures
- Université de Lyon
- Villeurbanne
- France
| | - A. Etiemble
- Univ Lyon
- INSA Lyon
- MATEIS UMR CNRS 5510
- F-69621 Villeurbanne
- France
| | - T. Douillard
- Univ Lyon
- INSA Lyon
- MATEIS UMR CNRS 5510
- F-69621 Villeurbanne
- France
| | - J. Faugier-Tovar
- Univ Lyon
- Université Claude Bernard Lyon 1
- Laboratoire des Multimatériaux et Interfaces
- UMR CNRS 5615
- F-69622 Villeurbanne
| | - F. Cauwet
- Univ Lyon
- Université Claude Bernard Lyon 1
- Laboratoire des Multimatériaux et Interfaces
- UMR CNRS 5615
- F-69622 Villeurbanne
| | - A. Brioude
- Univ Lyon
- Université Claude Bernard Lyon 1
- Laboratoire des Multimatériaux et Interfaces
- UMR CNRS 5615
- F-69622 Villeurbanne
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