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Stoski A, Machado BR, Vilsinski BH, de Carvalho LMG, Muniz EC, Almeida CAP. New Methodology for Modifying Sodium Montmorillonite Using DMSO and Ethyl Alcohol. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3029. [PMID: 38930397 PMCID: PMC11205384 DOI: 10.3390/ma17123029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/10/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
Modified clays with organic molecules have many applications, such as the adsorption of pollutants, catalysts, and drug delivery systems. Different methodologies for intercalating these structures with organic moieties can be found in the literature with many purposes. In this paper, a new methodology of modifying Sodium Montmorillonite clays (Na-Mt) with a faster drying time was investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), BET, and thermogravimetric analysis (TG and DTG). In the modification process, a mixture of ethyl alcohol, DMSO, and Na-Mt were kept under magnetic stirring for one hour. Statistical analysis was applied to evaluate the effects of the amount of DMSO, temperature, and sonication time on the modified clay (DMSO-SMAT) using a 23-factorial design. XRD and FTIR analyses showed the DMSO intercalation into sodium montmorillonite Argel-T (SMAT). An average increase of 0.57 nm for the interplanar distance was found after swelling with DMSO intercalation. BET analysis revealed a decrease in the surface area (from 41.8933 m2/g to 2.1572 m2/g) of Na-Mt when modified with DMSO. The porosity increased from 1.74 (SMAT) to 1.87 nm (DMSO-SMAT) after the application of the methodology. Thermal analysis showed a thermal stability for the DMSO-SMAT material, and this was used to calculate the DMSO-SMAT formula of Na[Al5Mg]Si12O30(OH)6 · 0.54 DMSO. Statistical analysis showed that only the effect of the amount of DMSO was significant for increasing the interlayer space of DMSO-SMAT. In addition, at room temperature, the drying time of the sample using this methodology was 30 min.
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Affiliation(s)
- Adriana Stoski
- Interfacial Science Laboratory, Department of Chemistry, Midwestern State University, Guarapuava 85040-080, PR, Brazil;
| | - Bruno Rafael Machado
- Department of Chemistry, State University of Maringa, Maringá 87020-900, PR, Brazil; (B.R.M.); (E.C.M.)
| | - Bruno Henrique Vilsinski
- Group of Biopolymeric Materials and Composites, Department of Chemistry, Federal University of Juiz de Fora, Juiz de Fora 36036-110, MG, Brazil
| | | | - Edvani Curti Muniz
- Department of Chemistry, State University of Maringa, Maringá 87020-900, PR, Brazil; (B.R.M.); (E.C.M.)
- Department of Chemistry, Federal University of Piauí (UFPI), Teresina 64049-550, PI, Brazil;
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Gu Q, Zhu C, Cheng R, Zhou J, He J, Liu T, Yang Y, Lian Y, Zhang K. Formation mechanism of a novel core-shell with tetradecyl dimethyl benzyl ammonium-modified montmorillonite interlayer nanofibrous membrane and its antimicrobial properties. Colloids Surf B Biointerfaces 2024; 238:113889. [PMID: 38574404 DOI: 10.1016/j.colsurfb.2024.113889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/20/2024] [Accepted: 03/30/2024] [Indexed: 04/06/2024]
Abstract
A novel core-shell with a tetradecyl dimethyl benzyl ammonium chloride-modified montmorillonite (TDMBA/MMT) interlayer silk fibroin (SF)/poly(lactic acid) (PLLA) nanofibrous membrane was fabricated using a simple conventional electrospinning method. Scanning electron microscopy and pore size analyses revealed that this core-shell with TDMBA/MMT interlayer maintained its nanofibrous morphology and larger pore structure more successfully than SF/PLLA nanofibrous membranes after treatment with 75% ethanol vapor. Transmission electron microscopy and energy-dispersive X-ray spectroscopy analyses testified that the SF/PLLA-TDMBA/MMT nanofibers exhibited a core-shell with an interlayer structure, with SF/PLLA in the core-shell layer and TDMBA/MMT in the interlayer. The formation of a core-shell with interlayer nanofibers was primarily attributed to the uniform dispersion of TDMBA/MMT nanosheets in a solution owing to its exfoliation using hexafluoroisopropanol and then preparing a stable spinning solution similar to an emulsion. Compared to SF/PLLA nanofibrous membranes, the core-shell structure with TDMBA/MMT interlayers of SF/PLLA nanofibrous membranes exhibited enhanced hydrophilicity, thermal stability, mechanical properties as well as improved and long-lasting antimicrobial performance against Escherichia coli and Staphylococcus aureus without cytotoxicity.
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Affiliation(s)
- Qi Gu
- College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Changfa Zhu
- College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Ruobing Cheng
- Analytical and Testing Center, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Junlong Zhou
- College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Jintao He
- College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Tanlong Liu
- College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Yuxin Yang
- College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Yuan Lian
- College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing, Zhejiang 314001, China.
| | - Kuihua Zhang
- College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing, Zhejiang 314001, China.
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Study on the Shale Hydration Inhibition Performance of Triethylammonium Acetate. MINERALS 2022. [DOI: 10.3390/min12050620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Shale inhibitor is an additive for drilling fluids that can be used to inhibit shale hydration expansion and dispersion, and prevent wellbore collapse. Small molecular quaternary ammonium salt can enter the interlayer of clay crystal, and enables an excellent shale inhibition performance. In this paper, a novel ionic shale inhibitor, triethylammonium acetate (TEYA), was obtained by solvent-free synthesis by using acetic acid and triethylamine as raw materials. The final product was identified as the target product by Fourier transform infrared spectroscopy (FT-IR). The inhibition performance of TEYA was studied by the mud ball immersion test, linear expansion test, rolling recovery test and particle size distribution test. The results demonstrated that the shale inhibitor shows a good shale hydration inhibition performance. The inhibition mechanism was studied by FT-IR and X-ray diffraction (XRD), respectively; the results showed that triethylammonium acetate TEYA could enter the crystal layer of clay and inhibit it through physical adsorption.
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Properties of polyethylcyanoacrylate/modified Mt composites with highly exfoliated montmorillonite. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03402-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Polez RT, Rodrigues BVM, El Seoud OA, Frollini E. Electrospinning of cellulose carboxylic esters synthesized under homogeneous conditions: Effects of the ester degree of substitution and acyl group chain length on the morphology of the fabricated mats. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Samadian H, Zamiri S, Ehterami A, Farzamfar S, Vaez A, Khastar H, Alam M, Ai A, Derakhshankhah H, Allahyari Z, Goodarzi A, Salehi M. Electrospun cellulose acetate/gelatin nanofibrous wound dressing containing berberine for diabetic foot ulcer healing: in vitro and in vivo studies. Sci Rep 2020; 10:8312. [PMID: 32433566 PMCID: PMC7239895 DOI: 10.1038/s41598-020-65268-7] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 04/27/2020] [Indexed: 01/18/2023] Open
Abstract
Functional wound dressing with tailored physicochemical and biological properties is vital for diabetic foot ulcer (DFU) treatment. Our main objective in the current study was to fabricate Cellulose Acetate/Gelatin (CA/Gel) electrospun mat loaded with berberine (Beri) as the DFU-specific wound dressing. The wound healing efficacy of the fabricated dressings was evaluated in streptozotocin-induced diabetic rats. The results demonstrated an average nanofiber diameter of 502 ± 150 nm, and the tensile strength, contact angle, porosity, water vapor permeability and water uptake ratio of CA/Gel nanofibers were around 2.83 ± 0.08 MPa, 58.07 ± 2.35°, 78.17 ± 1.04%, 11.23 ± 1.05 mg/cm2/hr, and 12.78 ± 0.32%, respectively, while these values for CA/Gel/Beri nanofibers were 2.69 ± 0.05 MPa, 56.93 ± 1°, 76.17 ± 0.76%, 10.17 ± 0.21 mg/cm2/hr, and 14.37 ± 0.42%, respectively. The antibacterial evaluations demonstrated that the dressings exhibited potent antibacterial activity. The collagen density of 88.8 ± 6.7% and the angiogenesis score of 19.8 ± 3.8 obtained in the animal studies indicate a proper wound healing. These findings implied that the incorporation of berberine did not compromise the physical properties of dressing, while improving the biological activities. In conclusion, our results indicated that the prepared mat is a proper wound dressing for DFU management and treatment.
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Affiliation(s)
- Hadi Samadian
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sina Zamiri
- Department of Kinesiology and Health Science, York University, Ontario, Canada
| | - Arian Ehterami
- Department of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Saeed Farzamfar
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Vaez
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hossein Khastar
- School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Mostafa Alam
- Department of Oral and Maxillofacial Surgery, Dental School, Shahid Beheshti University of Medical sciences, Tehran, Iran
| | - Armin Ai
- Dental student of scientific research center, faculty of dentistry, Tehran university of medical sciences, Tehran, Iran
| | - Hossein Derakhshankhah
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Zahra Allahyari
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, USA
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, NY, USA
| | - Arash Goodarzi
- Department of Tissue Engineering, School of Advanced Technologies, Fasa University of Medical Sciences, Fasa, Iran
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.
- Tissue Engineering and stem cells research center, Shahroud University of Medical Sciences, Shahroud, Iran.
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Bardoňová L, Mamulová Kutláková K, Kotzianová A, Kulhánek J, Židek O, Velebný V, Tokarský J. Electrospinning of Fibrous Layers Containing an Antibacterial Chlorhexidine/Kaolinite Composite. ACS APPLIED BIO MATERIALS 2020; 3:3028-3038. [DOI: 10.1021/acsabm.0c00088] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lenka Bardoňová
- CONTIPRO a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
- Nanotechnology Centre, VŠB − Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic
| | - Kateřina Mamulová Kutláková
- Nanotechnology Centre, VŠB − Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic
- Center of Advanced Innovation Technologies, VŠB − Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic
| | - Adéla Kotzianová
- CONTIPRO a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Jaromír Kulhánek
- CONTIPRO a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Ondřej Židek
- CONTIPRO a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Vladimír Velebný
- CONTIPRO a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Jonáš Tokarský
- Nanotechnology Centre, VŠB − Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic
- IT4Innovations, VŠB − Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic
- Institute of Environmental Technology, VŠB − Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic
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The Inhibition Property and Mechanism of a Novel Low Molecular Weight Zwitterionic Copolymer for Improving Wellbore Stability. Polymers (Basel) 2020; 12:polym12030708. [PMID: 32210118 PMCID: PMC7182901 DOI: 10.3390/polym12030708] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/17/2020] [Accepted: 03/21/2020] [Indexed: 11/17/2022] Open
Abstract
In this work, a novel low molecular weight zwitterionic copolymer for improving wellbore stability, which is expected to be an alternative to the current shale inhibitors, was obtained by copolymerization of tris hydroxyethyl allyl ammonium bromide (THAAB), 2-acrylamido-2- methyl propane sulfonic acid (AMPS) and acrylamide (AM), initiated by a redox initiation system in an aqueous solution. The copolymer, denoted as SX-1, was characterized by FT-IR, TGA-DSC, and GPC. Results demonstrated that the molecular weight of SX-1 was approximately 13,683 g/mol and it displayed temperature resistance up to 225 °C. Regarding the inhibition performance, evaluation experiments showed the hot rolling recovery of a Longmaxi shale sample in 2.0 wt % SX-1 solutions was up to 90.31% after hot rolling for 16 h at 120 °C. The Linear swelling height of Na-MMT artificial core in 2.0 wt % SX-1 solution was just 4.74 mm after 16 h. Methods including particle size analysis, FTIR, XRD, and SEM were utilized to study the inhibition mechanism of SX-1; results demonstrated that SX-1 had entered into the inner layer of sodium montmorillonite (Na-MMT) and adsorbed on the inner surface, and the micro-structure of Na-MMT was successfully changed by SX-1. The particle size of Na-MMT in distilled water was 8.05 μm, and it was observed that its size had increased to 603 μm after the addition of 2.0 wt % of SX-1. Its superior properties make this novel low molecular weight copolymer promising for ensuring wellbore stability, particularly for high temperature wells.
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Samadian H, Ehterami A, Sarrafzadeh A, Khastar H, Nikbakht M, Rezaei A, Chegini L, Salehi M. Sophisticated polycaprolactone/gelatin nanofibrous nerve guided conduit containing platelet-rich plasma and citicoline for peripheral nerve regeneration: In vitro and in vivo study. Int J Biol Macromol 2020; 150:380-388. [PMID: 32057876 DOI: 10.1016/j.ijbiomac.2020.02.102] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/10/2020] [Accepted: 02/10/2020] [Indexed: 02/02/2023]
Abstract
Peripheral nerve injury (PNI) is a devastating condition that may result in loss of sensory function, motor function, or both. In the present study, we construct an electrospun nerve guide conduit (NGC) based on polycaprolactone (PCL) and gelatin filled with citicoline bearing platelet-rich plasma (PRP) gel as a treatment for PNI. The NGCs fabricated from PCL/Gel polymeric blend using the electrospinning technique. The characterizations demonstrated that the fabricated nanofibers were straight with the diameter of 708 ± 476 nm, the water contact angle of 78.30 ± 2.52°, the weight loss of 41.60 ± 6.94% during 60 days, the tensile strength of 5.31 ± 0.97 MPa, and the young's modulus of 3.47 ± 0.10 GPa. The in vitro studies revealed that the PCL/Gel/PRP/Citi NGC was biocompatible and hemocompatible. The in vivo studies conducted on sciatic nerve injury in rats showed that the implantation of PCL/Gel/PRP/Citi NGC induced regeneration of nerve tissue, demonstrated with histopathological assessments. Moreover, the sciatic function index (SFI) value of -30.3 ± 3.5 and hot plate latency time of 6.10 ± 1.10 s revealed that the PCL/Gel/PRP/Citi NGCs recovered motor and sensory functions. Our findings implied that the fabricated NGC exhibited promising physicochemical and biological activates favorable for PNI treatment.
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Affiliation(s)
- Hadi Samadian
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Arian Ehterami
- Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Arash Sarrafzadeh
- Oral and Maxillofacial Surgery Department, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Khastar
- School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.
| | - Mohammad Nikbakht
- Department of Medical Nanotechnology, School of Advanced Technology in Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran.
| | - Aram Rezaei
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Leila Chegini
- International Medicine Department, Aja University of Medical Sciences, Tehran, Iran
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran; Tissue Engineering and Stem Cells Research Center, Shahroud University of Medical Sciences, Shahroud, Iran.
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Development of drug reservoirs based on nanofibers and capsules for epistaxis treatment. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2019.101398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Du WC, Wang XY, Liu M, Bi TF, Song SX, Zhang J, Chen G. Synthesis and performance of AM/SSS/THDAB as clay hydration dispersion inhibitor. POLIMEROS 2019. [DOI: 10.1590/0104-1428.06519] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Wei-Chao Du
- Xi’an Shiyou University, People's Republic of China; Shaanxi University of Science and Technology, People's Republic of China
| | | | - Man Liu
- Changqing Oilfield Company, People's Republic of China
| | - Tai-Fei Bi
- Changqing Oilfield Company, People's Republic of China
| | - Shun-Xi Song
- Shaanxi University of Science and Technology, People's Republic of China
| | - Jie Zhang
- Xi’an Shiyou University, People's Republic of China
| | - Gang Chen
- Xi’an Shiyou University, People's Republic of China
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