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Díaz-García D, Ardiles PR, Díaz-Sánchez M, Mena-Palomo I, Del Hierro I, Prashar S, Rodríguez-Diéguez A, Páez PL, Gómez-Ruiz S. Copper-functionalized nanostructured silica-based systems: Study of the antimicrobial applications and ROS generation against gram positive and gram negative bacteria. J Inorg Biochem 2019; 203:110912. [PMID: 31743886 DOI: 10.1016/j.jinorgbio.2019.110912] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/26/2019] [Accepted: 11/07/2019] [Indexed: 12/29/2022]
Abstract
A series of copper-functionalized SBA-15 (Santa Barbara Amorphous) materials containing the ligands triethoxysilylpropylmaleamic acid (maleamic) or triethoxy-3-(2-imidazolin-1-yl)propylsilane (imidazoline) have been prepared. The nanostructured silica-based systems SBA-maleamic, SBA-imidazoline, SBA-maleamic-Cu and SBA-imidazoline-Cu were characterized by several methods observing that the functionalization took place mainly inside the pores of the mesoporous system. The antimicrobial behaviour of the synthesized materials against Staphylococcus aureus and Escherichia coli was tested observing a very potent activity of the copper-functionalized systems (minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values for SBA-maleamic-Cu of ca. 31.25 μg/mL, which correspond with ca. 1.13 μg/mL of Cu). A study of the oxidative stress promoted by the synthesized materials showed that the SBA-maleamic-Cu and the SBA-imidazoline-Cu were able to increase the reactive oxygen species (ROS) production in S. aureus by 427% and 373%, respectively, while this increase was slightly lower in E. coli (387 and 324%, respectively). Furthermore, an electrochemical study was carried out in order to determine if these materials interact with lysine or alanine to validate a potential antimicrobial mechanism based on the inhibition of the synthesis of the peptidoglycan of the bacterial wall. Finally, these studies were also performed to determine the potential interaction of the copper-containing materials with glutathione in order to assess if they are able to perturb the metabolism of this tripeptide.
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Affiliation(s)
- Diana Díaz-García
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Perla R Ardiles
- Departamento de Ciencias Farmacéuticas. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Haya de la Torre y Medina Allende, X5000HUA Córdoba, Argentina
| | - Miguel Díaz-Sánchez
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Irene Mena-Palomo
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Isabel Del Hierro
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Sanjiv Prashar
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Antonio Rodríguez-Diéguez
- Departamento de Química Inorgánica, C/Severo Ochoa s/n, Universidad de Granada, 18071 Granada, Spain
| | - Paulina L Páez
- Departamento de Ciencias Farmacéuticas. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Haya de la Torre y Medina Allende, X5000HUA Córdoba, Argentina.
| | - Santiago Gómez-Ruiz
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain.
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Díaz-García D, Ardiles PR, Prashar S, Rodríguez-Diéguez A, Páez PL, Gómez-Ruiz S. Preparation and Study of the Antibacterial Applications and Oxidative Stress Induction of Copper Maleamate-Functionalized Mesoporous Silica Nanoparticles. Pharmaceutics 2019; 11:E30. [PMID: 30646534 PMCID: PMC6359009 DOI: 10.3390/pharmaceutics11010030] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 02/06/2023] Open
Abstract
Mesoporous silica nanoparticles (MSNs) are an interesting class of nanomaterials with potential applications in different therapeutic areas and that have been extensively used as drug carriers in different fields of medicine. The present work is focused on the synthesis of MSNs containing a maleamato ligand (MSN-maleamic) and the subsequent coordination of copper(II) ions (MSN-maleamic-Cu) for the exploration of their potential application as antibacterial agents. The Cu-containing nanomaterials have been characterized by different techniques and the preliminary antibacterial effect of the supported maleamato-copper(II) complexes has been tested against two types of bacteria (Gram positive and Gram negative) in different assays to determine the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). The biological results showed a moderate antibacterial activity against Escherichia coli which motivated a more detailed study of the antibacterial mechanism of action of the synthesized maleamate-containing nanosystems and whose findings showed oxidative stress generation in bacterial cells. All the prepared nanomaterials were also tested as catalysts in the "solvent free" selective oxidation of benzyl alcohol, to observe if there is a potential correlation between the catalytic oxidation capacity of the materials and the observed oxidative stress in bacteria. This may help in the future, for a more accurate rational design of antibacterial nanosystems, based on their observed catalytic oxidation activity.
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Affiliation(s)
- Diana Díaz-García
- Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles (Madrid), Spain.
| | - Perla R Ardiles
- Departamento de Ciencias Farmacéuticas. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba. Ciudad Universitaria, Haya de la Torre y Medina Allende, X5000HUA Córdoba, Argentina.
| | - Sanjiv Prashar
- Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles (Madrid), Spain.
| | - Antonio Rodríguez-Diéguez
- Departamento de Química Inorgánica, Universidad de Granada, Facultad de Ciencias, Campus de Fuentenueva, Avda. Fuentenueva s/n, E-18071 Granada, Spain.
| | - Paulina L Páez
- Departamento de Ciencias Farmacéuticas. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba. Ciudad Universitaria, Haya de la Torre y Medina Allende, X5000HUA Córdoba, Argentina.
| | - Santiago Gómez-Ruiz
- Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles (Madrid), Spain.
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Soumya Mol U, Drisya R, Satheesh Chandran P, Sudarsanakumar M, Suma S, Sudhadevi Antharjanam P. Crystal growth and characterization studies of novel luminescent 2D coordination polymer of lead-benzilate possessing edge sharing PbO6 polyhedra. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.06.060] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Nair LP, Bijini BR, Prasanna S, Eapen SM, Nair CMK, Deepa M, RajendraBabu K. Growth and characterisation of a new polymorph of barium maleate: a metal organic framework. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:778-784. [PMID: 25265523 DOI: 10.1016/j.saa.2014.08.073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Revised: 08/06/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
A new polymorph of barium maleate (BM) with chemical formula C24H14O24Ba5⋅7H2O is grown by modified gel method. Transparent plate like crystals of dimensions 9×4×1 mm(3) were obtained. Single crystal X-ray Diffraction analysis was done to determine the structure and the crystal belongs to triclinic system, P-1 space group with cell dimensions a=7.2929(3) Å, b=10.5454(4) Å, c=14.2837(6) Å, α=102.0350(10)°, β=99.1580(10)°, γ=102.9170(10)°. Hydrogen bonding stabilises the two dimensional polymeric crystal structure. Fourier Transform Infrared spectroscopic method was utilised for the analysis of various functional groups present in the complex. Elemental analysis confirmed the stoichiometry of the complex. Thermal properties of the crystal were studied by TGA/DTA. The material melts at 368°C. The optical transparency of the crystal was studied using UV-Visible absorption spectra. The optical band gap is found to be 3.35 eV.
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Affiliation(s)
- Lekshmi P Nair
- Department of Physics, M.G. College, Thiruvananthapuram 695004, India
| | - B R Bijini
- Department of Physics, H.H.P.B.N.S.S. College, Thiruvananthapuram 695014, India
| | - S Prasanna
- Department of Physics, H.H.P.B.N.S.S. College, Thiruvananthapuram 695014, India
| | - S M Eapen
- STIC, Cochin University of Science & Technology, Kochi 682022, India
| | - C M K Nair
- Department of Physics, M.G. College, Thiruvananthapuram 695004, India
| | - M Deepa
- Department of Physics, All Saints' College, Thiruvananthapuram 695037, India
| | - K RajendraBabu
- Department of Physics, M.G. College, Thiruvananthapuram 695004, India; Heera College of Engineering & Technology, Thiruvananthapuram 695568, India.
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Escuer A, Vlahopoulou G, Perlepes SP, Font-Bardia M, Calvet T. Dinuclear, tetranuclear and polymeric complexes in copper(ii) perchlorate/pyridine-2,6-diamidoxime chemistry: synthetic, structural and magnetic studies. Dalton Trans 2011; 40:225-33. [DOI: 10.1039/c0dt00720j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Panagiotopoulos A, Perlepes SP, Bakalbassis EG, Terzis A, Raptopoulou CP. Modelling the use of lanthanides(III) as probes at calcium(II) binding sites in biological systems: Preparation and characterization of neodymium(III) and calcium(II) malonamato(-1) complexes. Polyhedron 2010. [DOI: 10.1016/j.poly.2010.05.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Dimitriou SK, Perlepes SP, Terzis A, Raptopoulou CP. Synthesis, crystal structures and spectroscopic studies of calcium(II) succinamate(-1) complexes. Polyhedron 2010. [DOI: 10.1016/j.poly.2010.04.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lazarou KN, Chadjistamatis I, Terzis A, Perlepes SP, Raptopoulou CP. Synthetic, structural and spectroscopic studies of complexes derived from the copper(II) perchlorate/succinamic acid/N,N′-donor tertiary reaction systems. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2009.09.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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