CS/Au/MWCNT nanohybrid as an efficient carrier for the sustained release of 5-FU and a study of its cytotoxicity on MCF-7. Issue 8 (22nd January 2021)

• Record Type: Journal Article
• Authors: Nivethaa, E. A. K.; Dhanavel, S.; Narayanan, V.; Narayana Kalkura, S.; Sivasankari, J.; Sivanandham, N.; Stephen, A.
• Is Part Of: RSC advances. Volume 11:Issue 8(2021)
• Page Start: 4584
• Page End: 4592
• Publication Date: 2021-01-22
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d0ra08537e
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : The chemical reduction method has been used to adeptly synthesize a CS/Au/MWCNT nanocomposite, to be used as a carrier for the effectual delivery of the anticancer drug 5-Fluorouracil. Abstract : The chemical reduction method has been used to adeptly synthesize a CS/Au/MWCNT nanocomposite, to be used as a carrier for the effectual delivery of the anticancer drug 5-Fluorouracil. The work aims at utilizing the less investigated ternary nanocomposite system containing chitosan (CS), gold (Au) and MWCNT's to attain higher encapsulation efficiency and to enable a more sustained and prolonged release of 5-FU. This system has improved cytotoxicity when compared to the CS/Au binary system. The prepared sample has been characterized using various techniques that confirm the formation of the nanocomposite, encapsulation of 5-FU into the nanocomposite, the structure of 5-FU and Au in the nanocomposite and the formation of the polymer matrix nanocomposite. An increase in the encapsulation efficiency to 98% and loading efficiency to 43% is observed when compared to the binary composite, elucidating the importance of incorporation of carbon nanotubes into the nanocomposite. A reduction in the release percentage of 5-FU by 40% indicates a more prolonged release, which will enable a reduction of the number of dosages that need to be administered. This in turn leads to a reduction in the side effects posed by the drug 5-FU. Moreover, the effectiveness of the drug loaded nanocomposite system towards the inhibition of breast cancer cells, apparent from the attainment of 50% cell viability while taking sample concentrations as low as 25 μg ml −1, makes this ternary nanocomposite superior and significant.