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Nano graphene oxide: A novel carrier for oral delivery of flavonoids

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Date
2014
Author
Rahmanian, N
Hamishehkar, H
Dolatabadi, JEN
Arsalani, N
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Abstract
The interesting physical and chemical properties of graphene oxide (GO) have led to much excitement among biomedical scientists in recent years. It is known that many potent, often aromatic medicines are water insoluble, and this has hindered their administration to treat diseases. Nano GO was synthesized and investigated for its biological application as a carrier for quercetin, a focused bioactive flavonoid widely used as a health supplement and a drug candidate. Different techniques were used to fully evaluate the synthesis, cytotoxicity, and quercetin loading capacity of nano GO. AFM and TEM results confirmed the preparation of planar nanoparticles without aggregation which was verified by reported size results (30 nm) obtained with a particle size analyzer. FTIR and DSC results proved the drug-carrier interaction. In vitro cytotoxicity assays showed that nano GO had no cytotoxicity on A549 cells in different amounts after incubation for 72 h, confirming its suitability as a drug carrier. Our results showed that nano GO can be proposed as a new carrier due to its small size, large specific surface area, low cost, and useful non-covalent interactions with aromatic low-soluble flavonoids such as quercetin. Moreover, it may find widespread applications in biomedicine. (C) 2014 Elsevier B.V. All rights reserved.
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http://dspace.tbzmed.ac.ir:8080/xmlui/handle/123456789/48427
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