1
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Parsaei M, Akhbari K, Tylianakis E, Froudakis GE. Effects of Fluorinated Functionalization of Linker on Quercetin Encapsulation, Release and Hela Cell Cytotoxicity of Cu-Based MOFs as Smart pH-Stimuli Nanocarriers. Chemistry 2024; 30:e202301630. [PMID: 37581254 DOI: 10.1002/chem.202301630] [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: 05/22/2023] [Revised: 08/13/2023] [Accepted: 08/14/2023] [Indexed: 08/16/2023]
Abstract
Controlled delivery of target molecules is required in many medical and chemical applications. For such purposes, metal-organic frameworks (MOFs), which possess desirable features such as high porosity, large surface area, and adjustable functionalities, hold great potential as drug carriers. Herein, Quercetin (QU), as an anticancer drug, was loaded on Cu2 (BDC)2 (DABCO) and Cu2 (F4 BDC)2 )DABCO) MOFs (BDC=1,4-benzenedicarboxylate and DABCO=1,4-diazabicyclo[2.2.2]octane). As these Cu-MOFs have a high surface area, an appropriate pore size, and biocompatible ingredients, they can be utilized to deliver QU. The loading efficiency of QU in these MOFs was 49.5 % and 41.3 %, respectively. The drug-loaded compounds displayed sustained drug release over 15 days, remarkably high drug loading capacities and pH-controlled release behavior. The prepared nanostructures were characterized by different characterization technics including FT-IR, PXRD, ZP, TEM, FE-SEM, UV-vis, and BET. In addition, MTT assays were carried out on the HEK-293 and HeLa cell lines to investigate cytotoxicity. Cellular apoptosis analysis was performed to investigate the cell death mechanisms. Grand Canonical Monte Carlo simulations were conducted to analyze the interactions between MOFs and QU. Moreover, the stability of MOFs was also investigated during and after the drug release process. Ultimately, kinetic models of drug release were evaluated.
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Affiliation(s)
- Mozhgan Parsaei
- School of Chemistry, College of Science, University of Tehran, 14155-6455, Tehran, Iran
| | - Kamran Akhbari
- School of Chemistry, College of Science, University of Tehran, 14155-6455, Tehran, Iran
| | - Emmanuel Tylianakis
- Department of Materials Science and Technology, Voutes Campus, University of Crete, GR-71003 Heraklion, Crete, Greece
| | - George E Froudakis
- Department of Chemistry, Voutes Campus, University of Crete, GR-71003 Heraklion, Crete, Greece
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2
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Mohammad OS, El Naggar HM, Abdelmaksoud HF, Barakat AM, Abdelhameed RM, Shehata MAS. The effect of Nigella sativa oil- and wheat germ oil-loaded metal organic frameworks on chronic murine toxoplasmosis. Acta Trop 2023; 239:106823. [PMID: 36608751 DOI: 10.1016/j.actatropica.2023.106823] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 01/02/2023] [Accepted: 01/02/2023] [Indexed: 01/05/2023]
Abstract
Treatment of chronic toxoplasmosis is challenging as the available drugs are effective only in the acute stage. Therefore, the current study aimed to investigate Nigella sativa oil (NSO) and wheat germ oil (WGO) loaded on copper-benzene tricarboxylic acid metal organic framework (Cu-BTC MOF) for treating chronic toxoplasmosis in a murine model. Eighty mice were divided into 8 groups (G); uninfected untreated negative control (GI), infected untreated positive control (GII), infected and treated with: Spiramycin (GIII), Spiramycin@Cu-BTC (GIV), Cu-BTC (GV), WGO@Cu-BTC (GVI), NSO@Cu-BTC (GVII) and combined WGO+NSO@Cu-BTC (GVIII). The infected groups were orally inoculated with 10 Toxoplasma gondii Me49 strain cysts/mouse. All drugs were orally administered for 14 consecutive days starting 8 weeks post-infection (wpi). The therapeutic efficacy was evaluated by parasitological (survival rate of mice and brain cyst burden) and histopathological (brain, liver, kidney, eye) parameters. At the end of 2-weeks therapy, the highest therapeutic outcome was achieved with GVII and GVIII exhibiting 100% survival, 64.3% and 51.4% reduction of brain cysts, and an apparent amendment of pathological insults. In the next place was GVI with 90% survival, 49.5% reduction of cysts and marked amelioration of pathological lesions. Meanwhile, GIII and GIV showed 80% survival, 42.4% and 41.8% reduction of cysts as well as minimal to moderate alleviation of tissue damage. The lowest effect was obtained with GV resulting in 70% survival and 24.4% reduction of cysts. The current results support the assertion that the new metal-based nanocomposites can be promising remedies of chronic toxoplasmosis particularly if conjugated with natural herbal extracts as NSO and WGO.
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Affiliation(s)
- Omnia Sobhi Mohammad
- Medical Parasitology Department, Faculty of Medicine, Ain Shams University, Cairo, Abbasya, Egypt.
| | - Heba Mohamed El Naggar
- Medical Parasitology Department, Faculty of Medicine, Ain Shams University, Cairo, Abbasya, Egypt
| | | | - Ashraf Mohamed Barakat
- Zoonotic Diseases Department, Veterinary Research Institute, National Research Centre, Giza, Egypt
| | - Reda Mohamed Abdelhameed
- Applied Organic Chemistry Department, Chemical Industries Research Institute, National Research Centre, Giza, Egypt
| | - Mai Abdel Sameaa Shehata
- Medical Parasitology Department, Faculty of Medicine, Ain Shams University, Cairo, Abbasya, Egypt
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3
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Coordination Compounds of Cu, Zn, and Ni with Dicarboxylic Acids and N Donor Ligands, and Their Biological Activity: A Review. Molecules 2023; 28:molecules28031445. [PMID: 36771123 PMCID: PMC9920268 DOI: 10.3390/molecules28031445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/25/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
Complexes of carboxylic acids are very often studied due to their interesting structural, spectral, and magnetic properties. This review is focused on complexes of four dicarboxylic acids, namely, 2,2'-thiodioacetic, 3,3'-thiodipropionic, 3,3'-dithiodipropionic, and fumaric acid. Many of the complexes were characterized by single crystal X-ray analyses. Without the analyses, it is very difficult to predict the coordination mode of carboxylate groups or nitrogen ligands on central atoms. Thus, structural properties are also discussed, as well as potential applications.
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Singbumrung K, Motina K, Inprasit W, Pisitsak P, Inprasit T. A green functionalized method of Cu-BTC on poly(vinyl alcohol)/chitosan composite mat and its antibacterial potential. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1016/j.sajce.2023.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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5
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Mao F, Su Y, Sun X, Li B, Liu PF. Cu(I) Metal-Organic Framework Composites with AgCl/Ag Nanoparticles for Irradiation-Enhanced Antibacterial Activity against E. coli. ACS OMEGA 2023; 8:2733-2739. [PMID: 36687073 PMCID: PMC9850725 DOI: 10.1021/acsomega.2c07415] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
Metal-organic frameworks (MOFs) have emerged as prospective antibacterial agents or synergistic agents for their versatile chemical building components and structures. In this work, copper(I) halide MOFs of Cu(I)bpyCl (bpy = 4,4'-bipyridine) composited with AgCl/Ag nanoparticles were synthesized, and their antibacterial activities were measured against Escherichia coli and Staphylococcus aureus. The attached chlorine in Cu(I)2Cl2 nodes of the MOFs served as loading sites for silver ions, in which AgCl and concomitant metallic Ag nanoparticles were in situ generated. Exceptional antibacterial activity against E. coli was realized with a minimum inhibitory concentration (MIC) of ∼7.8 μg mL-1, while the MIC value was ∼16 μg mL-1 against S. aureus. Enhanced antibacterial activity against E. coli with light irradiation was measured by the disk diffusion method compared with that under dark conditions.
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Affiliation(s)
- Fangxin Mao
- Key
Laboratory for Ultrafine Materials of Ministry of Education, Shanghai
Engineering Research Center of Hierarchical Nanomaterials, School
of Materials Science and Engineering, East
China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yonghua Su
- Department
of Dermatology, Yueyang Hospital of Integrated Traditional Chinese
and Western Medicine, Shanghai University
of Traditional Chinese Medicine, Shanghai 200437, China
- Institute
of Dermatology, Shanghai Academy of Traditional
Chinese Medicine, Shanghai 201203, China
| | - Xiaoying Sun
- Department
of Dermatology, Yueyang Hospital of Integrated Traditional Chinese
and Western Medicine, Shanghai University
of Traditional Chinese Medicine, Shanghai 200437, China
- Institute
of Dermatology, Shanghai Academy of Traditional
Chinese Medicine, Shanghai 201203, China
| | - Bin Li
- Institute
of Dermatology, Shanghai Academy of Traditional
Chinese Medicine, Shanghai 201203, China
- Department
of Dermatology, Shanghai Skin Diseases Hospital, Shanghai 200443, China
| | - Peng Fei Liu
- Key
Laboratory for Ultrafine Materials of Ministry of Education, Shanghai
Engineering Research Center of Hierarchical Nanomaterials, School
of Materials Science and Engineering, East
China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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6
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Loubalová I, Zahradníková E, Masaryk L, Nemec I, Hochvaldová L, Panáček A, Kvítek L, Večeřová R, Świątkowski M, Kopel P. Antibacterial study on nickel and copper dicarboxylate complexes. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2022.121273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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7
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Bicomponent hydrogels assisted templating synthesis of hierarchically porous ZIF-8 for efficient antibacterial applications. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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8
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Parsaei M, Akhbari K. Synthesis and Application of MOF-808 Decorated with Folic Acid-Conjugated Chitosan as a Strong Nanocarrier for the Targeted Drug Delivery of Quercetin. Inorg Chem 2022; 61:19354-19368. [DOI: 10.1021/acs.inorgchem.2c03138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Mozhgan Parsaei
- School of Chemistry, College of Science, University of Tehran, Tehran14155-6455, Iran
| | - Kamran Akhbari
- School of Chemistry, College of Science, University of Tehran, Tehran14155-6455, Iran
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9
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Sonochemical synthesis and crystal structure of copper(II)-based biodegradable antibacterial scaffold. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Parsaei M, Akhbari K. Smart Multifunctional UiO-66 Metal-Organic Framework Nanoparticles with Outstanding Drug-Loading/Release Potential for the Targeted Delivery of Quercetin. Inorg Chem 2022; 61:14528-14543. [PMID: 36074039 DOI: 10.1021/acs.inorgchem.2c00743] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Herein, UiO-66 and its two functional analogs (with -NO2 and -NH2 functional groups) were synthesized, and their potential ability as pH stimulus nanocarriers of quercetin (QU), an anticancer agent, was studied. UiO-66 is a low-toxicity, biocompatible metal-organic framework with a large surface area and good stability, which can be prepared through a facile and inexpensive method. Before and after drug loading, various analyses were conducted to characterize the synthesized nanocarriers. Moreover, Monte Carlo simulations were performed to investigate their structures and interactions with quercetin. The most promising drug loading potential and prolonged drug release (over 25 days) were observed in QU@UiO-66-NO2 with 37% drug loading content, which was the best-tested sample that exhibited a higher release rate under acidic conditions (pH = 5) than that in normal cells (pH = 7.4). This behavior is known as pH-stimulus-controlled ability. The cell treatment with free QU, UiO-66-R, and QU@UiO-66-R (R = -H, -NO2, and -NH2) was performed, and an MTT assay was conducted on HEK-293 and MDA-MB-231 cells for the cytotoxicity study. Additionally, the kinetic modeling of drug release was investigated on the basis of the analysis of the drug release profiles.
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Affiliation(s)
- Mozhgan Parsaei
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran
| | - Kamran Akhbari
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran
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11
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Fang Y, Wu W, Qin Y, Liu H, Lu K, Wang L, Zhang M. Recent development in antibacterial activity and application of nanozymes in food preservation. Crit Rev Food Sci Nutr 2022; 63:9330-9348. [PMID: 35452320 DOI: 10.1080/10408398.2022.2065660] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Nanozymes with excellent broad-spectrum antibacterial properties offers an alternative strategy for food preservation. This review comprehensively summarized the antibacterial mechanisms of nanozymes, including the generation of reactive oxygen species (ROS) and the destruction of biofilms. Besides, the primary factors (size, morphology, hybridization, light, etc.) regulating the antibacterial activity of different types of nanozymes were highlighted in detail, which provided effective guidance on how to design highly efficient antibacterial nanozymes. Moreover, this review presented elaborated viewpoints on the unique applications of nanozymes in food preservation, including the selection of nanozymes loading matrix, fabrication techniques of nanozymes-based antibacterial films/coatings, and the recent advances in the application of nanozymes-based antibacterial films/coatings in food preservation. In the end, the safety issues of nanozymes have also been mentioned. Overall, this review provided new avenues in the field of food preservation and displayed great prospects.
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Affiliation(s)
- Yan Fang
- College of Life Science & Technology, Xinjiang University, Urumqi, China
- The Xinjiang Key laboratory of Biological Resources and Genetic Engineering, Xinjiang University, Urumqi, China
| | - Wanfeng Wu
- College of Life Science & Technology, Xinjiang University, Urumqi, China
- The Xinjiang Key laboratory of Biological Resources and Genetic Engineering, Xinjiang University, Urumqi, China
| | - Yanan Qin
- College of Life Science & Technology, Xinjiang University, Urumqi, China
- The Xinjiang Key laboratory of Biological Resources and Genetic Engineering, Xinjiang University, Urumqi, China
| | - Haoqiang Liu
- College of Life Science & Technology, Xinjiang University, Urumqi, China
- The Xinjiang Key laboratory of Biological Resources and Genetic Engineering, Xinjiang University, Urumqi, China
| | - Kang Lu
- College of Life Science & Technology, Xinjiang University, Urumqi, China
- The Xinjiang Key laboratory of Biological Resources and Genetic Engineering, Xinjiang University, Urumqi, China
| | - Liang Wang
- College of Life Science & Technology, Xinjiang University, Urumqi, China
- The Xinjiang Key laboratory of Biological Resources and Genetic Engineering, Xinjiang University, Urumqi, China
| | - Minwei Zhang
- College of Life Science & Technology, Xinjiang University, Urumqi, China
- The Xinjiang Key laboratory of Biological Resources and Genetic Engineering, Xinjiang University, Urumqi, China
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12
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Parsaei M, Akhbari K. MOF-801 as a Nanoporous Water-Based Carrier System for In Situ Encapsulation and Sustained Release of 5-FU for Effective Cancer Therapy. Inorg Chem 2022; 61:5912-5925. [PMID: 35377632 DOI: 10.1021/acs.inorgchem.2c00380] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanoporous metal-organic frameworks (MOFs) have been gaining a reputation for their drug delivery applications. In the current work, MOF-801 was successfully prepared by a facile, cost-efficient, and environmentally friendly approach through the reaction of ZrCl4 and fumaric acid as organic linkers to deliver 5-fluorouracil (5-FU). The prepared nanostructure was fully characterized by a series of analytical techniques including Fourier transform infrared spectroscopy, powder X-ray diffraction, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, UV-vis spectroscopy, 1H NMR spectroscopy, thermogravimetric analysis, high-performance liquid chromatography, and Brunauer-Emmett-Teller analysis. MOF-801 could be used for the delivery of the anticancer drug 5-FU due to its high surface area, suitable pore size, and biocompatible ingredients. Based on in vitro loading and release studies, a high 5-FU loading capacity and pH-dependent drug release behavior were observed. Moreover, the interactions between the structure of MOFs and 5-FU were investigated through Monte Carlo simulation calculations. An in vitro cytotoxicity test was done, and the results indicated that 5-FU@MOF-801 was more potent than 5-FU on SW480 cancerous cells, indicating the highlighted role of this drug delivery system. Finally, the kinetics of drug release was investigated.
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Affiliation(s)
- Mozhgan Parsaei
- School of Chemistry, College of Science, University of Tehran, Tehran 14155-6455, Iran
| | - Kamran Akhbari
- School of Chemistry, College of Science, University of Tehran, Tehran 14155-6455, Iran
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13
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Sadjadi S, Koohestani F, Heravi MM. A novel composite of ionic liquid-containing polymer and metal-organic framework as an efficient catalyst for ultrasonic-assisted Knoevenagel condensation. Sci Rep 2022; 12:1122. [PMID: 35064158 PMCID: PMC8783012 DOI: 10.1038/s41598-022-05134-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 12/15/2021] [Indexed: 11/20/2022] Open
Abstract
1-Butyl-3-vinylimidazolium chloride was synthesized and polymerized with acrylamide to furnish an ionic liquid-containing polymer, which was then used for the formation of a composite with iron-based metal-organic framework. The resultant composite was characterized with XRD, TGA, FE-SEM, FTIR, EDS and elemental mapping analyses and its catalytic activity was appraised for ultrasonic-assisted Knoevenagel condensation. The results confirmed that the prepared composite could promote the reaction efficiently to furnish the corresponding products in high yields in very short reaction times. Moreover, the composite exhibited high recyclability up to six runs. It was also established that the activity of the composite was higher compared to pristine metal-organic framework or polymer.
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Affiliation(s)
- Samahe Sadjadi
- Gas Conversion Department, Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute, PO Box 14975-112, Tehran, Iran.
| | - Fatemeh Koohestani
- Gas Conversion Department, Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute, PO Box 14975-112, Tehran, Iran
| | - Majid M Heravi
- Department of Chemistry, School of Physics and Chemistry, Alzahra University, PO Box 1993891176, Vanak, Tehran, Iran.
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Soltani S, Akhbari K. Embedding an extraordinary amount of gemifloxacin antibiotic in ZIF-8 framework with one-step synthesis and measurement of its H 2O 2-sensitive release and potency against infectious bacteria. NEW J CHEM 2022. [DOI: 10.1039/d2nj02981b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
GEM@ZIF-8 has DLC = 69.82% and DLE = 89.03%, with controlled release dependent on H2O2 concentration, and it shows significant antibacterial activity.
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Affiliation(s)
- Sajjad Soltani
- School of Chemistry, College of Science, University of Tehran, Tehran, P.O. Box 14155-6455, Iran
| | - Kamran Akhbari
- School of Chemistry, College of Science, University of Tehran, Tehran, P.O. Box 14155-6455, Iran
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15
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Soltani S, Akhbari K. Cu-BTC metal-organic framework as a biocompatible nanoporous carrier for chlorhexidine antibacterial agent. J Biol Inorg Chem 2021; 27:81-87. [PMID: 34716792 DOI: 10.1007/s00775-021-01912-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 09/29/2021] [Indexed: 01/31/2023]
Abstract
Antibacterial materials are an essential part of modern life and many efforts have been made to find a new and effective type of them. In this study, chlorhexidine (CHX) was loaded on Cu-BTC metal-organic framework (MOF), that both of them are known to have antibacterial properties. The antibacterial properties of Cu-BTC, CHX and CHX@Cu-BTC were investigated against Gram-positive and Gram-negative bacteria. Agar well-diffusion method and MIC test showed that CHX@Cu-BTC has high antibacterial activity. Characterization methods, such as FT-IR, XRD, N2 adsorption-desorption isotherm, TGA, SEM, EDX, TEM and zeta potential, were employed to characterize their structures. Cu-BTC MOF nanoparticles were synthesized and used as nanoporous carriers for chlorhexidine. The loading was about 10%, which was absorbed into the pores. Antibacterial activity was investigated against Gram-negative and Gram-positive bacteria by Agar well diffusion method and MIC (minimal inhibitory concentration) assay. The CHX@Cu-BTC had synergistic antibacterial activity of Cu-BTC and chlorhexidine.
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Affiliation(s)
- Sajjad Soltani
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Kamran Akhbari
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
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16
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Nong W, Wu J, Ghiladi RA, Guan Y. The structural appeal of metal–organic frameworks in antimicrobial applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214007] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Chen L, Tang Y, Zhao K, Zha X, Wei M, Tan Q, Wu Z. Sequential release of double drug (graded distribution) loaded gelatin microspheres/PMMA bone cement. J Mater Chem B 2021; 9:508-522. [PMID: 33305784 DOI: 10.1039/d0tb01452d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Drugs are loaded into PMMA bone cement to reduce the risk of infection in freshly implanted prostheses or to promote the differentiation and growth of osteoblasts. However, the same method of loading of drugs in the bone cement cannot simultaneously achieve an effective antibacterial response and long-term treatment outcomes for osteoporosis based on a patient's clinical needs. In the present study, gentamicin sulfate (GS)/alendronate (ALN)-dual-loaded gelatin modified PMMA bone cement (GAPBC) was fabricated to provide rapid and continuous antibiotic release and long-term anti-osteoporotic therapy. Specifically, the gelatin microspheres were loaded with the drugs using separate methodologies, namely, ALN was loaded during fabrication of the gelatin microspheres after which GS was absorbed onto the gelatin from solution. The results demonstrate that sequential release of the GS and ALN was achieved, GS release playing a major role over the first 24 hours and ALN release dominant after 3 weeks of immersion in PBS, resulting from the graded distribution within the gelatin microspheres, and the final drug release ratio of GS (73.6%) and ALN (68.5%) from the modified bone cement was significantly higher than from PMMA bone cement. Therefore, GAPBC represents a potential drug carrier for future clinical applications.
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Affiliation(s)
- Lei Chen
- Department of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, P. R. China.
| | - Yufei Tang
- Department of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, P. R. China.
| | - Kang Zhao
- Department of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, P. R. China.
| | - Xiang Zha
- Department of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, P. R. China.
| | - Min Wei
- Department of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, P. R. China.
| | - Quanchang Tan
- Institute of Orthopaedics, Xi'jing Hospital, Fourth Military Medical University, Xi'an 710032, P. R. China.
| | - Zixiang Wu
- Institute of Orthopaedics, Xi'jing Hospital, Fourth Military Medical University, Xi'an 710032, P. R. China.
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