Extending the application of a magnetic PEG three-part drug release device on a graphene substrate for the removal of Gram-positive and Gram-negative bacteria and cancerous and pathologic cells
Received 22 July 2018
Accepted for publication 27 November 2018
Published 10 May 2019 Volume 2019:13 Pages 1581—1591
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Cristina Weinberg
Peer reviewer comments 3
Editor who approved publication: Prof. Dr. Cristiana Tanase
M Ramezani Farani,1 P Khadive Parsi,1 Gh Riazi,2 M Shafiee Ardestani,3 H Saligeh Rad4,5
1School of Chemical Engineering, University College of Engineering, University of Tehran, Tehran 4563-11155, Iran; 2Institute of Biophysics and Biochemistry, University of Tehran, Tehran 1417614411, Iran; 3Department of Radiopharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; 4Quantitative Medical Imaging Systems Group, Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences, Tehran, Iran; 5Medical Physics and Biomedical Engineering Department, Tehran University of Medical Sciences, Tehran, Iran
Objective: In this study, novel graphene oxide (GO)-based nanocomposites are presented. In fact, we have tried to replace the carboxyl groups on the surface of GO with amine groups to allow the biocompatible poly(ethylene glycol) bis(carboxymethyl) ether (average Mn 600) polymer to bond through an amide bond.
Materials and methods: The synthesis was conducted accurately according to final characterization experiments (Raman, X-ray diffraction [XRD], atomic force microscopy [AFM], X-ray photoelectron spectroscopy [XPS], thermogravimetric analysis [TGA], etc). The antimicrobial property of this nanocomposite was examined in Escherichia coli (ATCC 25922) as Gram-negative and Staphylococcus aureus (ATCC 25923) as Gram-positive bacterial species. Besides, curcumin (CUR) was added to the produced nanocomposite both as a promising anticancer drug and an antioxidant, the toxicity of which was then assessed on cellular-based HepG2 and pC12.
Results: An intense increase in toxicity was detected by MTT assay.
Conclusion: It can mainly be concluded that the nanocomposite synthesized in this study is capable of delivering drugs with antibacterial properties.
Keywords: graphene oxide, magnetic nanocomposite, drug delivery, antimicrobial, curcumin
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