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Eweis A, Ahmad MS, El Domany EB, Al-Zharani M, Mubarak M, E Eldin Z, GadelHak Y, Mahmoud R, Hozzein WN. Actinobacterium-Mediated Green Synthesis of CuO/Zn-Al LDH Nanocomposite Using Micromonospora sp. ISP-2 27: A Synergistic Study that Enhances Antimicrobial Activity. ACS OMEGA 2024; 9:34507-34529. [PMID: 39157139 PMCID: PMC11325407 DOI: 10.1021/acsomega.4c02133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 07/25/2024] [Accepted: 07/26/2024] [Indexed: 08/20/2024]
Abstract
Bacterial resistance to conventional antibiotics has created an urgent need to develop enhanced alternatives. Nanocomposites combined with promising antibacterial nanomaterials can show improved antimicrobial activity compared to that of their components. In this work, green synthesized CuO nanoparticles (NPs) supported on an anionic clay with a hydrotalcite-like structure such as Zn-Al layered double hydroxide (LDH) nanocomposite were investigated as antimicrobial agents. This nanocomposite was synthesized using Micromonospora sp. ISP-2 27 cell-free supernatant to form CuO NPs on the surface of previously synthesized LDH. The prepared samples were characterized using UV-Vis spectrophotometry, XRD, FTIR, Field emission scanning electron microscopy with EDX, zeta potential, and hydrodynamic particle size. UV-vis spectral analysis of the biosynthesized CuO NPs revealed a maximum peak at 300 nm, indicating their successful synthesis. The synthesized CuO NPs had a flower-like morphology with a size range of 43-78 nm, while the LDH support had a typical hexagonal layered structure. The zeta potentials of the CuO NPs, Zn-Al LDH, and CuO NPs/LDH nanocomposite were -21.4, 22.3, and 30.8 mV, respectively, while the average hydrodynamic sizes were 687, 735, and 528 nm, respectively. The antimicrobial activity of the produced samples was tested against several microbes. The results demonstrated that the nanocomposite displayed superior antimicrobial properties compared to those of its components. Among the microbes tested, Listeria monocytogenes ATCC 7644 was more sensitive (30 ± 0.34) to the biosynthesized nanocomposite than to CuO NPs (25 ± 0.05) and Zn-Al LDH (22 ± 0.011). In summary, the use of nanocomposites with superior antimicrobial properties has the potential to offer innovative solutions to the global challenge of antibiotic resistance by providing alternative treatments, reducing the reliance on traditional antibiotics, and contributing to the development of more effective and targeted therapeutic approaches.
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Affiliation(s)
- Abdullah
A. Eweis
- Department
of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Maged S. Ahmad
- Department
of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Ehab B. El Domany
- Biotechnology
and Life Sciences Department, Faculty of Postgraduate Studies for
Advanced Sciences, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Mohammed Al-Zharani
- Department
of Biology, College of Science, Imam Mohammad
Ibn Saud Islamic University, Riyadh 11623, Saudi Arabia
| | - Mohammed Mubarak
- Department
of Biology, College of Science, Imam Mohammad
Ibn Saud Islamic University, Riyadh 11623, Saudi Arabia
| | - Zienab E Eldin
- Department
of Materials Science and Nanotechnology, Faculty of Postgraduate Studies
for Advanced Sciences, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Yasser GadelHak
- Department
of Materials Science and Nanotechnology, Faculty of Postgraduate Studies
for Advanced Sciences, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Rehab Mahmoud
- Department
of Chemistry, Faculty of Science, Beni-Suef
University, Beni-Suef 62511, Egypt
| | - Wael N. Hozzein
- Department
of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
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Pálos V, Nagy KS, Pázmány R, Juriga-Tóth K, Budavári B, Domokos J, Szabó D, Zsembery Á, Jedlovszky-Hajdu A. Electrospun polysuccinimide scaffolds containing different salts as potential wound dressing material. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2024; 15:781-796. [PMID: 38979523 PMCID: PMC11228618 DOI: 10.3762/bjnano.15.65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 06/19/2024] [Indexed: 07/10/2024]
Abstract
In this research, we applied electrospinning to create a two-component biodegradable polymeric scaffold containing polysuccinimide (PSI) and antibacterial salts. Antibacterial agents for therapeutical purposes mostly contain silver ions which are associated with high environmental impact and, in some cases, may cause undesired immune reactions. In our work, we prepared nanofibrous systems containing antibacterial and tissue-regenerating salts of zinc acetate or strontium nitrate in different concentrations, whose structures may be suitable for developing biomedical wound dressing systems in the future. Several experiments have been conducted to optimize the physicochemical, mechanical, and biological properties of the scaffolds developed for application as wound dressings. The scaffold systems obtained by PSI synthesis, salt addition, and fiber formation were first investigated by scanning electron microscopy. In almost all cases, different salts caused a decrease in the fiber diameter of PSI polymer-based systems (<500 nm). Fourier-transform infrared spectroscopy was applied to verify the presence of salts in the scaffolds and to determine the interaction between the salt and the polymer. Another analysis, energy-dispersive X-ray spectroscopy, was carried out to determine strontium and zinc atoms in the scaffolds. Our result showed that the salts influence the mechanical properties of the polymer scaffold, both in terms of specific load capacity and relative elongation values. According to the dissolution experiments, the whole amount of strontium nitrate was dissolved from the scaffold in 8 h; however, only 50% of the zinc acetate was dissolved. In addition, antibacterial activity tests were performed with four different bacterial strains relevant to skin surface injuries, leading to the appearance of inhibition zones around the scaffold discs in most cases. We also investigated the potential cytotoxicity of the scaffolds on human tumorous and healthy cells. Except for the ones containing zinc acetate salt, the scaffolds are not cytotoxic to either tumor or healthy cells.
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Affiliation(s)
- Veronika Pálos
- Laboratory of Nanochemistry, Institute of Biophysics and Radiation Biology, Semmelweis University, Nagyvárad tér 4, 1089, Budapest, Hungary
| | - Krisztina S Nagy
- Laboratory of Nanochemistry, Institute of Biophysics and Radiation Biology, Semmelweis University, Nagyvárad tér 4, 1089, Budapest, Hungary
| | - Rita Pázmány
- Laboratory of Nanochemistry, Institute of Biophysics and Radiation Biology, Semmelweis University, Nagyvárad tér 4, 1089, Budapest, Hungary
| | - Krisztina Juriga-Tóth
- Laboratory of Nanochemistry, Institute of Biophysics and Radiation Biology, Semmelweis University, Nagyvárad tér 4, 1089, Budapest, Hungary
| | - Bálint Budavári
- Laboratory of Nanochemistry, Institute of Biophysics and Radiation Biology, Semmelweis University, Nagyvárad tér 4, 1089, Budapest, Hungary
| | - Judit Domokos
- Institute of Medical Microbiology, Semmelweis University, Nagyvárad tér 4, 1089, Budapest, Hungary
| | - Dóra Szabó
- Institute of Medical Microbiology, Semmelweis University, Nagyvárad tér 4, 1089, Budapest, Hungary
| | - Ákos Zsembery
- Department of Oral Biology, Semmelweis University, Nagyvárad tér 4, 1089, Budapest, Hungary
| | - Angela Jedlovszky-Hajdu
- Laboratory of Nanochemistry, Institute of Biophysics and Radiation Biology, Semmelweis University, Nagyvárad tér 4, 1089, Budapest, Hungary
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Hamarawf RF. Antibacterial, antibiofilm, and antioxidant activities of two novel metal-organic frameworks (MOFs) based on 4,6-diamino-2-pyrimidinethiol with Zn and Co metal ions as coordination polymers. RSC Adv 2024; 14:9080-9098. [PMID: 38500614 PMCID: PMC10945374 DOI: 10.1039/d4ra00545g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 03/04/2024] [Indexed: 03/20/2024] Open
Abstract
In the present era, the increase in free radical species (FRs) and multidrug-resistant (MDR) bacteria represents a major worldwide concern for public health. Biofilm development and the overuse and misuse of antibiotics could lead to the adaptation of bacteria to antimicrobial agents. Consequently, finding novel multifunctional species with antibacterial, antioxidant, and antibiofilm properties has become crucial in the fight against challenging bacterial infections and chronic inflammatory conditions. Metal-organic frameworks (MOFs) with zinc and cobalt metal centers are widely utilized in biological and environmental remediation owing to their versatility. In this study, multifunctional Zn-MOFs and Co-MOFs were successfully synthesized with zinc and cobalt as metal centers and 4,6-diamino-2-pyrimidinethiol as an organic linker using a hydrothermal technique. Numerous characterization techniques were used to fully examine the MOF structure, functionality, chemical makeup, crystalline structure, surface appearance, thermal behavior, and magnetic characteristics; the techniques included XPS, PXRD, FTIR, FESEM, EDX, UV-visible, BET, BJH, TGA/DTG, DSC, and magnetic susceptibility measurement. The antioxidant, antibacterial, and antibiofilm activities of the MOFs were examined, and they demonstrated potent activity in each of these aspects. The proposed mechanisms of antibacterial activity suggest that bacterial cell death results from multiple toxic effects, including electrostatic interaction and lipid peroxidation, when MOFs are attached to bacteria, leading to the formation of reactive oxygen species (ROSs). Zn-MOFs exhibit high antibacterial and antibiofilm efficacy owing to their large surface-to-volume ratio and porous nature, while Co-MOFs exhibit high antioxidant capacity owing to their redox properties.
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Affiliation(s)
- Rebaz F Hamarawf
- Department of Chemistry, College of Science, University of Sulaimani Kirkuk Road Sulaymaniyah City 46001 Kurdistan Region Iraq
- Department of Medical Laboratory Science, Komar University of Science and Technology (KUST) Qliasan St Sulaymaniyah City 46002 Kurdistan Region Iraq
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Wang YP, Jiang TT, Sun J, Han Y, Yan WF, Wang YC, Lu J, Jin J, Liu YF, Li Q. Synthesis, structure, theoretical calculation and antibacterial property of two novel Zn(II)/Ni(II) compounds based on 3, 5-dichlorosalicylaldehyde thiocarbamide ligand. Bioorg Chem 2024; 144:107140. [PMID: 38245950 DOI: 10.1016/j.bioorg.2024.107140] [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: 10/16/2023] [Revised: 12/16/2023] [Accepted: 01/15/2024] [Indexed: 01/23/2024]
Abstract
Two new compounds namely [Zn(L1)phen]31 and Ni(L1)phen(MeOH) 2 (L1 = 3, 5-dichlorosalicylaldehyde thiosemicarbazone) were synthesized by the slow evaporation method at room temperature. The structure of ligand L1 was determined using 1H NMR and 13C NMR spectra. X-ray single crystal diffraction analysis revealed that compounds 1-2 can form 3D supramolecular network structures through π···π stacking and hydrogen bonding interactions. The DFT calculation shows that the coordination of ligand and metal is in good agreement with the experimental results. Hirshfeld surface analysis revealed that H…H and Cl…H interactions were the predominant interactions in compounds 1-2. Energy framework analysis indicated that dispersion energy played a dominant role in the energy composition of compounds 1-2. The inhibitory effects of compounds 1-2 against Escherichia coli (E. coli) and Methicillin-resistant Staphylococcus aureus (MRSA) were tested using the paper disk diffusion method (1: E. coli: 18 mm, MRSA: 17 mm, 2: E. coli: 15 mm, MRSA: 16 mm). Ion releasing experiments were conducted to assess the ion release capacity of compounds 1-2 (Zn2+, 4 days, 38.33 µg/mL; Ni2+, 4 days, 29.12 µg/mL). Molecular docking demonstrated the interaction modes of compounds 1-2 with UDP-N-acetylenolpyruvoylglucosamine reductase (MurB) and dihydrofolate reductase (DHFR) in bacteria, involving hydrophobic, stacking, hydrogen bonding and halogen bonding interactions. The generation of reactive oxygen species (ROS) in bacteria under the presence of compounds 1-2 were evaluated using a fluorescent dye known as dichlorodihydrofluorescein diacetate (DCFH-DA). Potential antibacterial mechanisms of compounds 1-2 were proposed.
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Affiliation(s)
- Yuan-Peng Wang
- School of Chemistry and Materials Science, Ludong University, Yantai, Shandong 264025, China
| | - Ting-Ting Jiang
- School of Life Science, Ludong University, Yantai, Shandong 264025, China
| | - Jie Sun
- School of Life Science, Ludong University, Yantai, Shandong 264025, China
| | - Yu Han
- School of Chemistry and Materials Science, Ludong University, Yantai, Shandong 264025, China
| | - Wen-Fu Yan
- College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin 130023, China
| | - Yu-Chang Wang
- Yantai Valiant Fine Chemicals Co., Ltd, Yantai, Shandong 264006, China
| | - Jing Lu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Juan Jin
- School of Chemistry and Materials Science, Ludong University, Yantai, Shandong 264025, China; College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin 130023, China.
| | - Yong-Feng Liu
- School of Chemistry and Materials Science, Ludong University, Yantai, Shandong 264025, China
| | - Qing Li
- School of Life Science, Ludong University, Yantai, Shandong 264025, China.
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Bashir M, Dar AA, Yousuf I. Syntheses, Structural Characterization, and Cytotoxicity Assessment of Novel Mn(II) and Zn(II) Complexes of Aroyl-Hydrazone Schiff Base Ligand. ACS OMEGA 2023; 8:3026-3042. [PMID: 36713712 PMCID: PMC9878661 DOI: 10.1021/acsomega.2c05927] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/30/2022] [Indexed: 06/15/2023]
Abstract
This work describes the syntheses, structural characterization, and biological profile of Mn(II)- and Zn(II)-based complexes 1 and 2 derived from the aroyl-hydrazone Schiff base ligand (L1). The synthesized compounds were thoroughly characterized by elemental analysis, Fourier transform infrared spectroscopy (FTIR), UV-vis, electron paramagnetic resonance (EPR), nuclear magnetic resonance (NMR), and single-crystal X-ray diffraction (s-XRD). Density functional theory (DFT) studies of complexes 1 and 2 were performed to ascertain the structural and electronic properties. Hirshfeld surface analysis was used to investigate different intermolecular interactions that define the stability of crystal lattice structures. To ascertain the therapeutic potential of complexes 1 and 2, in vitro interaction studies were carried out with ct-DNA and bovine serum albumin (BSA) using analytical and multispectroscopic techniques, and the results showed more avid binding of complex 2 than complex 1 and L1. The antioxidant potential of complexes 1 and 2 was examined against the 2,2-diphenyl picrylhydrazyl (DPPH) free radical, which revealed better antioxidant ability of the Mn(II) complex. Moreover, the antibacterial activity of synthesized complexes 1 and 2 was tested against Gram-positive and Gram-negative bacteria in which complex 2 demonstrated more effective bactericidal activity than L1 and complex 1 toward Gram-positive bacteria. Furthermore, the in vitro cytotoxicity assessment of L1 and complexes 1 and 2 was carried out against MDA-MB-231 (triple negative breast cancer) and A549 (lung) cancer cell lines. The cytotoxic results revealed that the polymeric Zn(II) complex exhibited better and selective cytotoxicity against the A549 cancer cell line as was evidenced by its low IC50 value.
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Affiliation(s)
- Masrat Bashir
- Department
of Chemistry, Aligarh Muslim University, Aligarh202002, Uttar Pradesh, India
| | - Aijaz A. Dar
- Department
of Chemistry, University of Kashmir, Hazratbal, Srinagar190006, Jammu & Kashmir, India
| | - Imtiyaz Yousuf
- Department
of Chemistry, Aligarh Muslim University, Aligarh202002, Uttar Pradesh, India
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6
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Zinc(II) Carboxylate Coordination Polymers with Versatile Applications. Molecules 2023; 28:molecules28031132. [PMID: 36770799 PMCID: PMC9918918 DOI: 10.3390/molecules28031132] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/13/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
This review considers the applications of Zn(II) carboxylate-based coordination polymers (Zn-CBCPs), such as sensors, catalysts, species with potential in infections and cancers treatment, as well as storage and drug-carrier materials. The nature of organic luminophores, especially both the rigid carboxylate and the ancillary N-donor bridging ligand, together with the alignment in Zn-CBCPs and their intermolecular interaction modulate the luminescence properties and allow the sensing of a variety of inorganic and organic pollutants. The ability of Zn(II) to act as a good Lewis acid allowed the involvement of Zn-CBCPs either in dye elimination from wastewater through photocatalysis or in pathogenic microorganism or tumor inhibition. In addition, the pores developed inside of the network provided the possibility for some species to store gaseous or liquid molecules, as well as to deliver some drugs for improved treatment.
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Pettinari C, Ngoune J, Álvarez E. Unexpected formation of two different coordination polymers from the reaction of Zn(HCOO)2·2H2O with 1,2-bis(4-pyridyl)ethylene. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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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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9
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Scano A, Mereu E, Cabras V, Mannias G, Garau A, Pilloni M, Orrù G, Scano A, Ennas G. Green Preparation of Antimicrobial 1D-Coordination Polymers: [Zn(4,4'-bipy)Cl2]∞ and [Zn(4,4'-bipy)2(OAc)2]∞ by Ultrasonication of Zn(II) Salts and 4,4'-Bipyridine. Molecules 2022; 27:molecules27196677. [PMID: 36235214 PMCID: PMC9572912 DOI: 10.3390/molecules27196677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/17/2022] [Accepted: 09/28/2022] [Indexed: 11/24/2022] Open
Abstract
We report on the green preparation of one-dimensional metal coordination polymers by sonochemical approach. The spacer ligand 4,4'-bipyridine was ultrasonicated with chloride or acetate zinc salts to obtain [Zn(4,4'-bipy)Cl2]∞ and [Zn(4,4'-bipy)2(OAc)2]∞, respectively. Benign solvents such as ethanol and water were selected as reaction media, and the synthesis took place in a few minutes-a very short time compared to conventional methods where some days' synthesis is required. X-ray powder diffraction, Fourier transform infrared spectroscopy, thermal analysis (thermogravimetric and differential scanning calorimetry), and CHN techniques investigated the influence of using different reaction solvents on the chemical, structural, and thermal properties of the final products. The 1D [Zn(4,4'-bipy)Cl2]∞ and [Zn(4,4'-bipy)2(OAc)2]∞ polymers, in agreement with the structures reported in the literature, were obtained in the form of nanocrystals with an average crystal size around 100 nm. As a proof of concept, a set of Gram-positive (Staphylococcus aureus) and Gram-negative bacteria (Klebsiella pneumoniae), and three yeast strains (Candida albicans, Candida krusei, Candida glabrata) were tested to evaluate the antimicrobial activity of the coordination polymers, following the Kirby-Bauer procedure and microplate dilution method. Thus, minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and minimal biofilm inhibitory concentration (MBIC) were evaluated. Except for Candida krusei, the compounds showed an appreciable antimicrobial and antibiofilm activity against these strains grown in the liquid medium.
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Affiliation(s)
- Alessandra Scano
- Department of Chemical and Geological Sciences, University of Cagliari and INSTM Unit, SS 554 Bivio per Sestu, 09042 Monserrato, CA, Italy
- Correspondence: or (A.S.); (G.E.)
| | - Elisabetta Mereu
- Department of Chemical and Geological Sciences, University of Cagliari and INSTM Unit, SS 554 Bivio per Sestu, 09042 Monserrato, CA, Italy
| | - Valentina Cabras
- Department of Chemical and Geological Sciences, University of Cagliari and INSTM Unit, SS 554 Bivio per Sestu, 09042 Monserrato, CA, Italy
| | - Giada Mannias
- Department of Chemical and Geological Sciences, University of Cagliari and INSTM Unit, SS 554 Bivio per Sestu, 09042 Monserrato, CA, Italy
| | - Alessandra Garau
- Department of Chemical and Geological Sciences, University of Cagliari and INSTM Unit, SS 554 Bivio per Sestu, 09042 Monserrato, CA, Italy
| | - Martina Pilloni
- Department of Chemical and Geological Sciences, University of Cagliari and INSTM Unit, SS 554 Bivio per Sestu, 09042 Monserrato, CA, Italy
| | - Germano Orrù
- Department of Surgical Sciences, Molecular Biology Service, University of Cagliari, 09124 Cagliari, Italy
| | - Alessandra Scano
- Department of Surgical Sciences, Molecular Biology Service, University of Cagliari, 09124 Cagliari, Italy
| | - Guido Ennas
- Department of Chemical and Geological Sciences, University of Cagliari and INSTM Unit, SS 554 Bivio per Sestu, 09042 Monserrato, CA, Italy
- Correspondence: or (A.S.); (G.E.)
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10
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Dou L, Cai JQ, Feng LC, Dong WK, Duan J. Structure and luminescence of two coordination polymers with nonsymmetrical salamo-based ligand. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2118053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Lin Dou
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Jie-Qiong Cai
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Le-Chuan Feng
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Wen-Kui Dong
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Jingui Duan
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
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11
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Oladipo AC, Aderibigbe AD, Akpor OB, Abodunrin TO, Clayton HS, Tella AC. A sulfur-containing coordination polymer: remarkable heavy metal removal capacities and broad-spectrum antibacterial activities. J Sulphur Chem 2022. [DOI: 10.1080/17415993.2022.2100703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Adetola C. Oladipo
- Department of Physical Sciences, Landmark University, Omu-Aran, Nigeria
- Department of Chemistry, University of Ilorin, Ilorin, Nigeria
| | - Abiodun D. Aderibigbe
- Department of Chemistry, Federal University of Technology, Akure, Nigeria
- School of Nursing, University of Connecticut, Storrs, CT, USA
| | | | | | - Hadley S. Clayton
- Department of Chemistry, University of South Africa, Pretoria, South Africa
| | - Adedibu C. Tella
- Department of Chemistry, University of Ilorin, Ilorin, Nigeria
- Department of Chemistry, University of South Africa, Pretoria, South Africa
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12
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Ultrasonic assisted reverse micelle synthesis of a novel Zn-metal organic framework as an efficient candidate for antimicrobial activities. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131315] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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13
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Oladipo AC, Tella AC, Clayton HS, Olayemi VT, Akpor OB, Dembaremba TO, Ogunlaja AS, Clarkson GJ, Walton RI. A zinc-based coordination polymer as adsorbent for removal of trichlorophenol from aqueous solution: Synthesis, sorption and DFT studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131274] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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Chattopadhyay K, Mandal M, Maiti DK. Smart Metal-Organic Frameworks for Biotechnological Applications: A Mini-Review. ACS APPLIED BIO MATERIALS 2021; 4:8159-8171. [PMID: 35005918 DOI: 10.1021/acsabm.1c00982] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this pandemic situation it is evident that viruses and bacteria, more specifically, multiple drug resistant (MDR) bacteria, endanger human civilization severely. It is high time to design smart weapons to combat these pathogens for the prevention and cure of allied ailments. Metal-organic frameworks (MOFs) are porous materials designed from metal ions or inorganic clusters and multidentate organic ligands. Due to some unique features like high porosity, tunable pore shape and size, numerous possible metal-ligand combinations, etc., MOFs are ideal candidates to design "smart biotechnological tools". MOFs construct promising fluorescence based biosensing platforms for detection of viruses. MOFs also exhibit excellent antibacterial activity due to their ability for sustained release of active biocidal agents. There are several reviews that summarize the antibacterial applications of MOFs, but the biosensing platforms based on MOFs for detection of viruses have scarcely been summarized. This review carefully covers both the aspects including virus detection (nucleic acid recognition and immunological detection) with underlying mechanisms as well as antibacterial application of MOFs and doped MOFs or composites. This review will deliver valuable information and references for designing new, smarter antimicrobial agents based on MOFs.
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Affiliation(s)
- Krishna Chattopadhyay
- Department of Chemistry, University of Calcutta, Kolkata 700009, India.,Post Graduate Department of Chemistry, Lady Brabourne College, Kolkata 700017, India
| | - Manas Mandal
- Department of Chemistry, Sree Chaitanya College, Habra, WB 743268, India.,Department of Chemistry, Jadavpur University, Kolkata, WB 700032, India
| | - Dilip Kumar Maiti
- Department of Chemistry, University of Calcutta, Kolkata 700009, India
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15
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Polash SA, Khare T, Kumar V, Shukla R. Prospects of Exploring the Metal-Organic Framework for Combating Antimicrobial Resistance. ACS APPLIED BIO MATERIALS 2021; 4:8060-8079. [PMID: 35005933 DOI: 10.1021/acsabm.1c00832] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Infectious diseases are a major public health concern globally. Infections caused by pathogens with resistance against commonly used antimicrobial drugs or antibiotics (known as antimicrobial resistance, AMR) are becoming extremely difficult to control. AMR has thus been declared as one of the top 10 global public health threats, as it has very limited solutions. The drying pipeline of effective antibiotics has further worsened the situation. There is no absolute treatment, and the limitations of existing methods warrant further development in antimicrobials. Recent developments in the nanomaterial field present them as promising therapeutics and effective alternative to conventional antibiotics and synthetic drugs. The metal-organic framework (MOF) is a recent addition to the antimicrobial category with superior properties. The MOF exerts antimicrobial action on a wide range of species and is highly biocompatible. Additionally, their porous structures allow the incorporation of biomolecules and drugs for synergistic antimicrobial action. This review provides an inclusive summary of the molecular events responsible for resistance development and current trends in antimicrobials to combat antibiotic resistance and explores the potential role of the MOF in tackling the drug-resistant microbial species.
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Affiliation(s)
- Shakil Ahmed Polash
- Ian Potter NanoBiosensing Facility, NanoBiotechnology Research Laboratory (NBRL), School of Science, RMIT University, Melbourne, Victoria 3001, Australia.,Centre for Advance Materials & Industrial Chemistry (CAMIC), RMIT University, Melbourne, Victoria 3001, Australia
| | - Tushar Khare
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Ganeshkhind, Pune 411016, India.,Department of Environmental Science, Savitribai Phule Pune University, Pune 411007, India
| | - Vinay Kumar
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Ganeshkhind, Pune 411016, India.,Department of Environmental Science, Savitribai Phule Pune University, Pune 411007, India
| | - Ravi Shukla
- Ian Potter NanoBiosensing Facility, NanoBiotechnology Research Laboratory (NBRL), School of Science, RMIT University, Melbourne, Victoria 3001, Australia.,Centre for Advance Materials & Industrial Chemistry (CAMIC), RMIT University, Melbourne, Victoria 3001, Australia
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16
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Chandra A, Dutta B, Pal K, Jana K, Sinha C. Designing of an Adipic acid bridged Zn(II) coordination polymer: Synthesis and biological study. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Ma SX, Guo XL. Two transition metal phosphonate coordination polymers: application and nursing values on corneal disease during soft contact lenses usage. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1992428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Su-Xiang Ma
- Ophthalmology Department, The Second People's Hospital of Jinan, Jinan, Shandong, China
| | - Xiao-Ling Guo
- Community Development, Qilu Children’s Hospital of Shandong University, Jinan, Shandong, China
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18
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Gao RX, Li Y, Zhu TT, Dai YX, Li XH, Wang L, Li L, Qu Q. ZIF-8@s-EPS as a novel hydrophilic multifunctional biomaterial for efficient scale inhibition, antibacterial and antifouling in water treatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 773:145706. [PMID: 33940765 DOI: 10.1016/j.scitotenv.2021.145706] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 06/12/2023]
Abstract
The hydrophilic biomaterial was constructed based on the soluble extracellular polysaccharides (s-EPS) secreted by Bacillus megaterium and zeolitic imidazolate framework-8 (ZIF-8), namely ZIF-8@s-EPS, wrapped in s-EPS shell with ZIF-8 as the core. ZIF-8@s-EPS was used as a novel multifunctional biomaterial in water treatment for the first time. Unexpectedly, results showed ZIF-8@s-EPS with strong synergistic effect presented multifunctional performances including descaling, antifouling and antibacterial. Scale inhibition efficiency reached 98.63% for CaCO3 and as high as 99.40% for CaSO4 at concentration 20.00 mg/L. The synergy of s-EPS and ZIF-8 demonstrated effective antibacterial activity against Pseudomonas aeruginosa and inhibitory effect on biofilms, and result presented that ZIF-8@s-EPS could inhibit the growth of nearly 89.4% P. aeruginosa. Therefore, the obtained insights will shed light on the development of s-EPS modified biomaterials in water treatment.
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Affiliation(s)
- Rui-Xia Gao
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Yan Li
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Ting-Ting Zhu
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Yi-Xiu Dai
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Xiao-Hong Li
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Lin Wang
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Lei Li
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Qing Qu
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China.
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19
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Kobayashi D, Hamakawa A, Yamaguchi Y, Takahashi T, Yanagita M, Arai S, Minoura M. Broadened bioactivity and enhanced durability of two structurally distinct metal-organic frameworks containing Zn 2+ ions and thiabendazole. Dalton Trans 2021; 50:7176-7180. [PMID: 34075976 DOI: 10.1039/d1dt00733e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Novel metal-organic frameworks (MOFs) based on thiabendazole (TBZ) were developed. The two structurally distinct TBZ-MOFs synthesized in this study exhibited enhanced durability and a broader biocidal spectrum than either individual bioactive species (i.e., Zn2+ and TBZ). The characteristics of each TBZ-MOF are related to the coordination modes among the Zn2+ ions and ligand donors. The difference in water solubility between the two TBZ-MOFs due to the structural design allows for the controlled release of the desired bioactive component.
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Affiliation(s)
- Daiya Kobayashi
- Nippon Soda Co. Ltd., Chiba Research Center, 12-54 Goi-minamikaigan, Ichihara, Chiba 290-0045, Japan.
| | - Akira Hamakawa
- Nippon Soda Co. Ltd., Chiba Research Center, 12-54 Goi-minamikaigan, Ichihara, Chiba 290-0045, Japan.
| | - Yuki Yamaguchi
- Nippon Soda Co. Ltd., Chiba Research Center, 12-54 Goi-minamikaigan, Ichihara, Chiba 290-0045, Japan.
| | - Toshiaki Takahashi
- Nippon Soda Co. Ltd., Chiba Research Center, 12-54 Goi-minamikaigan, Ichihara, Chiba 290-0045, Japan.
| | - Mitsuhiro Yanagita
- Nippon Soda Co. Ltd., Chiba Research Center, 12-54 Goi-minamikaigan, Ichihara, Chiba 290-0045, Japan.
| | - Shigebumi Arai
- Nippon Soda Co. Ltd., Chiba Research Center, 12-54 Goi-minamikaigan, Ichihara, Chiba 290-0045, Japan.
| | - Mao Minoura
- College of Science, Department of Chemistry, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo, 171-8501, Japan.
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20
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The Effect of a Zinc-Containing Additive on the Properties of PVC Compounds. ADVANCES IN POLYMER TECHNOLOGY 2021. [DOI: 10.1155/2021/5593184] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Polymeric materials that undergo degradation under the influence of biological media have attracted widespread attention in recent decades. This is due to the ability to eliminate the negative impact on the environment, gradually reducing the scale of plastic waste pollution. At the same time, it remains relevant to ensure the necessary performance characteristics of products for a certain period of use. An important direction in the field of biodegradable composite compositions is the development of nontoxic additives in order to ensure their safe interaction with biological media. In this regard, a method has been developed for the joint production of a new nontoxic plasticizer decyl phenoxyethyl adipate and a biocidal additive of zinc decyl adipate. The effect of the obtained additives on the biodegradation of PVC film samples under natural conditions was studied. The period of biocidal action of zinc compound formed in situ in an amount of 0.3% in the composition of PVC films using the developed plasticizer was determined.
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21
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Ding X, Xie Z, Li G, Zhao Y. A new Zn(
II
) coordination polymer: Selective detection of Fe
3+
and treatment activity of the exercise induced traumatic osteoarthritis by reducing reactive oxygen species production. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202000557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xuan‐Xi Ding
- Department of Orthopedics The First Hospital of Lanzhou University Lanzhou China
| | - Zhi‐Hui Xie
- Department of Gynecology and Obstetrics Gansu University of Chinese medicine Lanzhou China
| | - Guang‐Jie Li
- Department of Orthopedics The First Hospital of Lanzhou University Lanzhou China
| | - Yue‐Sheng Zhao
- Department of Orthopedics The First Hospital of Lanzhou University Lanzhou China
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22
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Abstract
The biomolecule chelidonic acid (H2chel, 4-oxo-4H-pyran-2,6-dicarboxylic acid) has been used to build new coordination polymers with the bridging N,N′-ligands 4,4′-bipyridine (4,4-bipy) and 1,2-bis(4-pyridyl)ethane (bpe). Four compounds have been obtained as single crystals: 1D cationic coordination polymers [M(4,4-bipy)(OH2)4]2+ with chelidonate anions and water molecules in the second coordination sphere in 1∞[Zn(4,4-bipy)(H2O)4]chel·3H2O (2) and in the two pseudopolymorphic 1∞[Cu(4,4-bipy)(H2O)4]chel·nH2O (n = 3, 4a; n = 6, 4b), and the 2D neutral coordination polymers 2∞[Zn(chel)(4,4-bipy)(H2O)]·2H2O (1) and 2∞[Zn(chel)(bpe)(H2O)]·H2O (3) where the chelidonate anion acts as a bridging ligand. The effects of the hydrogen bonds on the crystal packing were analyzed. The role of the water molecules hosted within the crystals lattices was also studied.
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23
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Meng WJ, Hao JY, Tong ZS, Liu H, Li Y, Zhang XX. Cu(II) and Co(II) coordination polymers: Magnetic properties, regulating the YAP signaling pathway activation and exerting anticancer activity against breast cancer combined with Sevoflurane. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Insight into Rare Structurally Characterized Homotrinuclear CuII Non-Symmetric Salamo-Based Complex. CRYSTALS 2021. [DOI: 10.3390/cryst11020113] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A rare homotrinuclear CuII salamo-based complex [Cu3(L)2(μ-OAc)2(H2O)2]·2CHCl3·5H2O was prepared through the reaction of a non-symmetric salamo-based ligand H2L and Cu(OAc)2·H2O, and validated by elemental analyses, UV-Visible absorption, fluorescence and infrared spectra, molecular simulation and single-crystal X-ray analysis techniques. It is shown that three CuII atoms and two wholly deprotonated ligand (L)2− moieties form together a trinuclear 3:2 (M:L) complex with two coordination water molecules and two bi-dentate briging μ-acetate groups (μ-OAc−). Besides, the Hirshfeld surface analysis of the CuII complex was investigated. Compared with other ligands, the fluorescent strength of the CuII complex was evidently lowered, showing that the CuII ions possess fluorescent quenching effect.
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25
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Razaviamri S, Wang K, Liu B, Lee BP. Catechol-Based Antimicrobial Polymers. Molecules 2021; 26:559. [PMID: 33494541 PMCID: PMC7865322 DOI: 10.3390/molecules26030559] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 11/22/2022] Open
Abstract
Catechol is a key constituent in mussel adhesive proteins and is responsible for strong adhesive property and crosslinking formation. Plant-based polyphenols are also capable of chemical interactions similar to those of catechol and are inherently antimicrobial. This review reports a series of catechol-based antimicrobial polymers classified according to their antimicrobial mechanisms. Catechol is utilized as a surface anchoring group for adhering monomers and polymers of known antimicrobial properties onto various types of surfaces. Additionally, catechol's ability to form strong complexes with metal ions and nanoparticles was utilized to sequester these antimicrobial agents into coatings and polymer matrices. During catechol oxidation, reactive oxygen species (ROS) is generated as a byproduct, and the use of the generated ROS for antimicrobial applications was also introduced. Finally, polymers that utilized the innate antimicrobial property of halogenated catechols and polyphenols were reviewed.
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Affiliation(s)
| | | | - Bo Liu
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA; (S.R.); (K.W.)
| | - Bruce P. Lee
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA; (S.R.); (K.W.)
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26
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Tu Y, Lei C, Deng F, Chen Y, Wang Y, Zhang Z. Core–shell ZIF-8@polydopamine nanoparticles obtained by mitigating the polydopamine coating induced self-etching of MOFs: prototypical metal ion reservoirs for sticking to and killing bacteria. NEW J CHEM 2021. [DOI: 10.1039/d1nj00461a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
ZIF-8@PDA nanoparticles can work as metal ion reservoirs that locally release metal ions to kill bacteria after sticking to them.
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Affiliation(s)
- Yingxue Tu
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University
- Tianjin
- China
| | - Caifen Lei
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University
- Tianjin
- China
| | - Fei Deng
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University
- Tianjin
- China
| | - Yiang Chen
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University
- Tianjin
- China
| | - Ying Wang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University
- Tianjin
- China
| | - Zhenkun Zhang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University
- Tianjin
- China
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27
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Carpenter-Warren CL, Slawin AM. One pot, three dimensionalities: 1D, 2D and 3D zinc coordination polymers with both N- and O- linkers produced in same reaction. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Soltani S, Akhbari K, White J. Effect of structural features on the stability and bactericidal potential of two cadmium coordination polymers. CrystEngComm 2021. [DOI: 10.1039/d1ce00979f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Two mixed ligand Cd(ii) coordination polymers have been synthesized using three methods by in situ decarboxylation of phenylmalonic acid. CPs were screened for their antibacterial activities and the influence of structural properties was studied.
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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
| | - Jonathan White
- School of Chemistry, Bio21 Institute, The University of Melbourne, VIC 3010, Australia
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29
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Zhao W, Deng J, Ren Y, Xie L, Li W, Wang Q, Li S, Liu S. Antibacterial application and toxicity of metal-organic frameworks. Nanotoxicology 2020; 15:311-330. [PMID: 33259255 DOI: 10.1080/17435390.2020.1851420] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Metal-organic frameworks (MOFs), which are also referred to as coordination polymers, have been widely used in adsorption separation and catalysis, especially in the field of physical chemistry in the past few years, because of their unique physical structure and potential chemical properties. In recent years, particularly with the continuous expansion of the research field, deepening of research levels, and sustained advancements in science and technology, powerful and diverse MOFs that have demonstrated great biomedical application potential have been successively developed. Consequently, this study summarizes the origin, development, and common synthesis methods of MOFs, with major emphasis on their antibacterial application and safety evaluation in biomedicine.
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Affiliation(s)
- Wanling Zhao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.,Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jinqiong Deng
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.,Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yan Ren
- Guangdong Provincial People's Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Liyuan Xie
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Weirong Li
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qi Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shengqing Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Sijun Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
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30
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Soltani S, Akhbari K, White J. Sonochemical Synthesis, Crystal Structure and Antimicrobial Property of One‐dimensional Dinuclear Coordination Polymer. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000268] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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
| | - Jonathan White
- School of Chemistry and Bio21 Institute The University of Melbourne 3010 VIC Australia
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31
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Mughal EU, Mirzaei M, Sadiq A, Fatima S, Naseem A, Naeem N, Fatima N, Kausar S, Altaf AA, Zafar MN, Khan BA. Terpyridine-metal complexes: effects of different substituents on their physico-chemical properties and density functional theory studies. ROYAL SOCIETY OPEN SCIENCE 2020; 7:201208. [PMID: 33391801 PMCID: PMC7735333 DOI: 10.1098/rsos.201208] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/07/2020] [Indexed: 06/12/2023]
Abstract
A series of different substituted terpyridine (tpy)-based ligands have been synthesized by Kröhnke method. Their binding behaviour was evaluated by complexing them with Co(II), Fe(II) and Zn(II) ions, which resulted in interesting coordination compounds with formulae, [Zn(tpy)2]PF6, [Co(tpy)2](PF6)2, [Fe(tpy)2](PF6)2 and interesting spectroscopic properties. Their absorption and emission behaviours in dilute solutions were investigated in order to explain structure-property associations and demonstrate the impact of different aryl substituents on the terpyridine scaffold as well as the role of the metal on the complexes. Photo-luminescence analysis of the complexes in acetonitrile solution revealed a transition from hypsochromic to bathochromic shift. All the compounds displayed remarkable photo-luminescent properties and various maximum emission peaks owing to the different nature of the functional groups. Furthermore, the anti-microbial potential of ligands and complexes was evaluated with docking analyses carried out to investigate the binding affinity of terpyridine-based ligands along with corresponding proteins (shikimate dehydrogenase and penicillin-binding protein) binding sites. To obtain further insight into molecular orbital distributions and spectroscopic properties, density functional theory calculations were performed for representative complexes. The photophysical activity and interactions between chromophore structure and properties were both investigated experimentally as well as theoretically.
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Affiliation(s)
| | - Masoud Mirzaei
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, PO Box 9177948974, Mashhad, Iran
| | - Amina Sadiq
- Department of Chemistry, Government College Women University, Sialkot 51300, Pakistan
| | - Sana Fatima
- Department of Chemistry, University of Gujarat, Gujarat 50700, Pakistan
| | - Ayesha Naseem
- Department of Chemistry, University of Gujarat, Gujarat 50700, Pakistan
| | - Nafeesa Naeem
- Department of Chemistry, University of Gujarat, Gujarat 50700, Pakistan
| | - Nighat Fatima
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, 22060, Pakistan
| | - Samia Kausar
- Department of Chemistry, University of Gujarat, Gujarat 50700, Pakistan
| | - Ataf Ali Altaf
- Department of Chemistry, University of Gujarat, Gujarat 50700, Pakistan
- Department of Chemistry, University of Okara, Okara 56300, Pakistan
| | | | - Bilal Ahmad Khan
- Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
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32
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Mu HR, An XX, Liu C, Zhang Y, Dong WK. STRUCTURALLY CHARACTERIZED SELF-ASSEMBLED HETEROBIMETALLIC Ni(II)–Eu(III)-SALAMO-BIPYRIDINE COORDINATION POLYMER: SYNTHESIS, PHOTOPHYSICAL AND ANTIMICROBIAL PROPERTIES. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620070203] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Chu HY, Fu H, Liu A, Wang P, Cao YL, Du AF, Wang CC. Two silver-based coordination polymers constructed from organic carboxylate acids and 4, 4′-bipyridine-like bidentate ligands: Synthesis, structure, and antimicrobial performances. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114684] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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34
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Shen M, Forghani F, Kong X, Liu D, Ye X, Chen S, Ding T. Antibacterial applications of metal-organic frameworks and their composites. Compr Rev Food Sci Food Saf 2020; 19:1397-1419. [PMID: 33337086 DOI: 10.1111/1541-4337.12515] [Citation(s) in RCA: 138] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/29/2019] [Accepted: 11/08/2019] [Indexed: 12/11/2022]
Abstract
Metal-organic frameworks (MOFs) are porous coordination materials composed of multidentate organic ligands and metal ions or metal clusters. MOFs have the great potential to be utilized in antibacterial materials for biological, environmental, and food antimicrobial fields. In recent years, MOFs have been applied to various antibacterial fields due to their sustained release capability, porosity, and structural flexibility in combination with many chemicals and/or materials (such as nanoparticles, antibiotics, phytochemicals, and polymers). This review offers a detailed summary of the antibacterial applications of MOFs and their composites, focusing on the combination types of MOFs composites and the antibacterial effect in different applications. These applications are illustrated by the examples discussed in this review.
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Affiliation(s)
- Mofei Shen
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Fereidoun Forghani
- Department of Plant Pathology, College of Agricultural and Environmental Sciences, University of Georgia, Tifton, Georgia
| | - Xueqian Kong
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Donghong Liu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Xingqian Ye
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Shiguo Chen
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Tian Ding
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
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35
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Luo D, Wang C, Tong Y, Liu C, Xiao Y, Zhu Z, Liu D, Wang Y. An NIF-doped ZIF-8 hybrid membrane for continuous antimicrobial treatment. RSC Adv 2020; 10:7360-7367. [PMID: 35492192 PMCID: PMC9049784 DOI: 10.1039/d0ra00108b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 02/03/2020] [Indexed: 12/14/2022] Open
Abstract
Sodium alginate (ALG) composites with ZIF-8 and niflumic acid (NIF) were prepared by a one-pot method at room temperature and characterized by FTIR, SEM and XRD studies. In the composite, ZIF-8 was used as a highly connected node in a supercrosslinked polymer network. In addition, the material exhibits good antibacterial activity against Staphylococcus aureus and Escherichia coli in vitro. Compared to the original ALG membrane and ZIF-8, the ZIF–NIF–ALG membrane has the following advantages: stronger antibacterial properties; slow release of Zn(ii); high drug loading; and longer sustained release time. This research introduces new concepts for the design and manufacture of various antimicrobial membranes and broadens the range of applications of MOFs. A ZIF-8 hybrid film has shows continuous medical effects, with including antibacterial and anti-inflammatory effects.![]()
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Affiliation(s)
- Dan Luo
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - Cuijuan Wang
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - Yan Tong
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - Cheng Liu
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - Yumei Xiao
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - Zixin Zhu
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - DongNing Liu
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - Yaoyu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry
- Northwest University
- Xi'an 710069
- China
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Optimization of ZnAl/Chitosan Supra-Nano Hybrid Preparation as Efficient Antibacterial Material. Int J Mol Sci 2019; 20:ijms20225705. [PMID: 31739485 PMCID: PMC6888223 DOI: 10.3390/ijms20225705] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/09/2019] [Accepted: 11/12/2019] [Indexed: 12/13/2022] Open
Abstract
The menace of antimicrobial resistance continues to increase and hence the need to discover new antibiotics, especially alternative and effective sources such as hybrid organic-inorganic, organic-organic materials, and other combinations. In this study, an antimicrobial hybrid supra-nano material was prepared by the bi-titration synthesis method of chitosan (CS) and ZnAl layered double hydroxide. Fourier-transform infrared spectrometer (FTIR), thermogravimetric and differential thermal gravimetric (TGA/DTG), ultraviolet-visible (UV-Vis), X-ray diffraction (XRD), and scanning electron microscopy (SEM) analyses indicated that the ZnAl/CS hybrid exhibited low crystallinity with high thermal stability. The results of ZnAl/CS characterization showed the characteristic properties of the individual components ZnAl and CS, indicating a successful preparation of the ZnAl/CS hybrid. The antibacterial tests revealed that the ZnAl/CS hybrid possessed an enhanced antimicrobial effect against both Escherichia coli (E. coli, MTCC 739) and Penicilliumcyclopium (P. cyclopium, AS 3.4513). Under the central composite design (CCD) of the response surface methodology (RSM) tool, the parameters of the hybrid synthesis reaction were optimized and the result obtained was as follows: reaction pH was 11.3, reagent Zn/Al ratio was 3.27, and chitosan concentration was 1.07 g/L. After optimization, it was found that the antibacterial activity of ZnAl/CS was strengthened against E. coli as evidenced by a widening of the inhibition zone of about 41.6%. The antibacterial activity of ZnAl/CS was mainly due to the reactivation of the antibacterial activity of CS associated with the release of Zn2+ and Al3+ metal ions in addition to ZnO, Al2O3, and ZnAl2O4 compounds resulting from the method of preparation.
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A Newly Synthesized Heterobimetallic NiII-GdIII Salamo-BDC-Based Coordination Polymer: Structural Characterization, DFT Calculation, Fluorescent and Antibacterial Properties. CRYSTALS 2019. [DOI: 10.3390/cryst9110596] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A unprecedented hetero-bimetallic 3d-4f BDC-salamo-based coordination polymer, [(L)Ni(BDC)Gd(NO3)(DMF)] was prepared and validated via elemental analyses, IR and UV–Visible absorption spectra, DFT calculation, and X-ray crystallography. The six-coordinated Ni1 ion lies at the N2O2 donor site of the L2− moiety, and one DMF O atom and carboxylate O atom occupy, collectively, the axial positions, and form a twisted octahedron. The nine-coordinated Gd1 ion consists of three oxygen atoms (O12, O13, and O14) of two carboxylate groups, two oxygen atoms (O8 and O9) derived from one bidentate nitrate group, and an O2O2 coordination site (O1, O2, O6, and O5) of the L2− unit, forming a twisted three-capped triangular prism coordination geometry. Compared to the ligand (H2L), the fluorescence intensity decreases due to the coordination of metal ions. Meanwhile, the antibacterial activities are researched.
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Corrosion resistance and antibacterial activity of zinc-loaded montmorillonite coatings on biodegradable magnesium alloy AZ31. Acta Biomater 2019; 98:196-214. [PMID: 31154057 DOI: 10.1016/j.actbio.2019.05.069] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 05/21/2019] [Accepted: 05/28/2019] [Indexed: 12/28/2022]
Abstract
A Zinc-loaded montmorillonite (Zn-MMT) coating was hydrothermally prepared using Zn2+ ion intercalated sodium montmorillonite (Na-MMT) upon magnesium (Mg) alloy AZ31 as bone repairing materials. Biodegradation rate of the Mg-based materials was studied via potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS) and hydrogen evolution tests. Results revealed that both Na-MMT and Zn-MMT coatings exhibited better corrosion resistance in Dulbecco's modified eagle medium (DMEM) + 10% calf serum (CS) than bare Mg alloy AZ31 counterparts. Hemolysis results demonstrated that hemocompatibility of the Na-MMT and Zn-MMT coatings were 5%, and lower than that of uncoated Mg alloy AZ31 pieces. In vitro MTT tests and live-dead stain of osteoblast cells (MC3T3-E1) indicated a significant improvement in cytocompatibility of both Na-MMT and Zn-MMT coatings. Antibacterial properties of two representative bacterial strains associated with device-related infection, i.e. Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), were employed to explore the antibacterial behavior of the coatings. The measured inhibitory zone and bacterial growth rate confirmed that Zn-MMT coatings exhibited higher suppression toward both E. coli and S. aureus than that of Na-MMT coatings. The investigation on antibacterial mechanism through scanning electron microscopy (SEM) and lactate dehydrogenase (LDH) release assay manifested that Zn-MMT coating led to severe breakage of bacterial membrane of E. coli and S. aureus, which resulted in a release of cytoplasmic materials from the bacterial cells. In addition, the good inhibition of Zn-MMT coatings against E. coli and S. aureus might be attributed to the slow but sustainable release of Zn2+ ions (up to 144 h) from the coatings into the culture media. This study provides a novel coating strategy for manufacturing biodegradable Mg alloys with good corrosion resistance, biocompatibility and antibacterial activity for future orthopedic applications. STATEMENT OF SIGNIFICANCE: The significance of the current work is to develop a corrosion-resistant and antibacterial Zn-MMT coating on magnesium alloy AZ31 through a hydrothermal method. The Zn-MMT coating on magnesium alloy AZ31 shows better corrosion resistance, biocompatibility and excellent antibacterial ability than magnesium alloy AZ31. This study provides a novel coating on Mg alloys for future orthopedic applications.
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Bahrani S, Hashemi SA, Mousavi SM, Azhdari R. Zinc-based metal-organic frameworks as nontoxic and biodegradable platforms for biomedical applications: review study. Drug Metab Rev 2019; 51:356-377. [PMID: 31203696 DOI: 10.1080/03602532.2019.1632887] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Development of biomedical systems for controllable drug delivery systems and construction of biosensors is imperative to reduce side effects of common treatment techniques and enhance the therapeutic efficacy. To address this issue, metal-organic frameworks (MOFs) as hybrid porous polymeric structures have attracted worldwide attention due to their unprecedented opportunities in vast range of applications in diverse fields including chemistry, biological, and medicinal science as gas storage/separation, sensing, and drug delivery systems. Recently, biomedical application has become an interesting and promising issue for development and usage of multi-functional MOFs. Flexible chemical composition and versatile porous structure of MOFs enable the engineering and enhancement of their medical formulation and functionality as practical carriers for whether therapeutic or imaging agents. One important point in this domain is the efficient delivery of drugs in the body using nontoxic and biodegradable carriers. This review brings together the literatures that addressing the biomedical applications of Zinc-based MOFs (i.e. as drug delivery systems or nontoxic agent in matter of therapeutic applications) to present recent achievements in this interesting field.
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Affiliation(s)
- Sonia Bahrani
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences , Shiraz , Iran.,Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences , Shiraz , Iran
| | - Seyyed Alireza Hashemi
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences , Shiraz , Iran.,Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences , Shiraz , Iran
| | - Seyyed Mojtaba Mousavi
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences , Shiraz , Iran.,Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences , Shiraz , Iran
| | - Rouhollah Azhdari
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences , Shiraz , Iran.,Faculty of Chemical, Petroleum and Gas, Semnan University , Semnan , Iran
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Syntheses, crystal structures, antibacterial activities of Cu(II) and Ni(II) complexes based on terpyridine polycarboxylic acid ligand. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.072] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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41
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Wang W, Zhu L, Lv P, Liu G, Yu Y, Li J. Novel Candy-like Cu 4O 3 Microstructure: Facile Wet Chemical Synthesis, Formation Mechanism, and Good Long-Term Antibacterial Activities. ACS APPLIED MATERIALS & INTERFACES 2018; 10:37287-37297. [PMID: 30296370 DOI: 10.1021/acsami.8b14470] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The novel candy-like Cu4O3 microstructure has been synthesized successfully for the first time by a facile wet chemical method, and the formation mechanism was studied based on series of control experiments. The antibacterial activities of the candy-like Cu4O3 were evaluated by means of Gram-negative Escherichia coli ( E. coli) and Gram-positive Staphylococcus saureus ( S. aureus). The antibacterial mechanism was investigated by tracing the morphology evolution of the bacteria. The results show that the candy-like Cu4O3 microstructure was formed underwent the route of Cu(NH3)42+ → Cu(OH)42- → Cu(OH)2 → CuO → Cu4O3 nuclei → Cu4O3 crystal growth → candy-like Cu4O3, and optimal reaction conditions are required to obtain the candy-like Cu4O3. The candy-like Cu4O3 microstructure exhibits good long-term antibacterial activities to both E. coli and S. aureus bacteria. Critical concentration of Cu2+ ions released from the candy-like Cu4O3 was found responsible for the sudden increase beyond 90% in antibacterial activity.
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Affiliation(s)
- Wenwen Wang
- School of Chemistry & Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion , Tianjin University of Technology , Tianjin 300384 , PR China
| | - Lianjie Zhu
- School of Chemistry & Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion , Tianjin University of Technology , Tianjin 300384 , PR China
| | - Pengzhao Lv
- School of Chemistry & Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion , Tianjin University of Technology , Tianjin 300384 , PR China
| | - Guokai Liu
- School of Chemistry & Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion , Tianjin University of Technology , Tianjin 300384 , PR China
| | - Yanmiao Yu
- School of Chemistry & Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion , Tianjin University of Technology , Tianjin 300384 , PR China
| | - Jianfa Li
- School of Chemistry & Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion , Tianjin University of Technology , Tianjin 300384 , PR China
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Contejean ZI, LaDuca RL. Nitroaromatic-detecting zinc and cadmium coordination polymers with methyl-substituted aliphatic dicarboxylate and 4,4′-dipyridylamine ligands and diverse topologies. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.06.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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43
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LaDuca AR, LaDuca RL. Nitroaromatic-detecting cadmium cyclohexyldicarboxylate coordination polymers with bis(4-pyridylmethyl)piperazine coligands and unprecedented 2D and 3D topologies. CrystEngComm 2018. [DOI: 10.1039/c8ce01041b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Hydrothermal reaction of cadmium nitrate, bis(4-pyridylmethyl)piperazine (4-bpmp), and a variety of cyclohexyldicarboxylate ligands generated three new coordination polymer solids that were structurally characterized via single-crystal X-ray diffraction.
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Affiliation(s)
- Andrew R. LaDuca
- Department of Chemistry
- Grand Valley State University
- Allendale
- USA
| | - Robert L. LaDuca
- Lyman Briggs College and Department of Chemistry
- Michigan State University
- East Lansing
- USA
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