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Ghaffar I, Imran M, Perveen S, Kanwal T, Saifullah S, Bertino MF, Ehrhardt CJ, Yadavalli VK, Shah MR. Synthesis of chitosan coated metal organic frameworks (MOFs) for increasing vancomycin bactericidal potentials against resistant S. aureus strain. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110111. [PMID: 31546392 DOI: 10.1016/j.msec.2019.110111] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 07/23/2019] [Accepted: 08/20/2019] [Indexed: 12/21/2022]
Abstract
Multiple drug resistant (MDR) has become a major issue in developing countries. MDR bacterial infections lead to significant increase in morbidity, mortality and cost of prolonged treatments. Therefore, designing of strategies for improving the antimicrobial potential of the therapeutic agents are highly required. Metal organic frameworks (MOFs) are highly tunable hybrid material, consist of metal ions linked together by organic bridging ligands have been used as an efficient drug delivery carrier because of their biodegradability, low toxicity and structure integrity upon loading and functionalizing process. Current study was based on the synthesis of chitosan coated MOFs with enhanced contact with S. aureus cell surface. Chitosan is deacetylated derivative of chitin and capable for non-bonding interaction with negatively charged bacterial cell leading to enhanced contact of MOFs with S. aureus. Chitosan coated MOFs were characterized with various techniques such as atomic force microscopy, scanning electron microscopy, DLS, FT-IR, TGA, DSC and Powder X-ray diffraction. They were also studied for their efficacy on resistant S. aureus, results revealed that Vancomycin bactericidal activity significantly increased upon loading in chitosan coated MOFs and caused increased inhibition of resistant S. aureus. AFM analysis of S. aureus strains clearly revealed complete distortion of morphology by treating with chitosan modified drug loaded MOFs. Findings of the current study suggest the potential of chitosan coated MOFs for reversing bacterial resistance against Vancomycin and provide new perspectives for improved antibiotic therapy of infections associated with MDR.
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Affiliation(s)
- Iqra Ghaffar
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences (ICCBS), University of Karachi, Pakistan
| | - Muhammad Imran
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences (ICCBS), University of Karachi, Pakistan; Department of Chemical & Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Samina Perveen
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences (ICCBS), University of Karachi, Pakistan
| | - Tasmina Kanwal
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences (ICCBS), University of Karachi, Pakistan
| | - Salim Saifullah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences (ICCBS), University of Karachi, Pakistan
| | - Massimo F Bertino
- Department of Physics, Virginia Commonwealth University, Richmond, VA 23284, USA.
| | - Christopher J Ehrhardt
- Department of Forensic Science, Virginia Commonwealth University, Richmond, VA 23284, USA.
| | - Vamsi K Yadavalli
- Department of Chemical & Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA.
| | - Muhammad Raza Shah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences (ICCBS), University of Karachi, Pakistan.
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Karimian R, Davarpanah SJ. MIL-101(Fe) hexagonal microspindle as a highly efficient, reusable and versatile catalyst for benzo-fused heterocyclic nucleus synthesis. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4529] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ramin Karimian
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute; Baqiyatallah University of Medical Sciences; Tehran Iran
| | - Seyed Javad Davarpanah
- Applied Biotechnology Research Center; Baqiyatallah University of Medical Sciences; Tehran Iran
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