MANNOSYLATED MULTIWALLED CARBON NANOTUBES ASSISTED ARTESUNATE DELIVERY FOR CEREBRAL MALARIA: MULTIWALLED CARBON NANOTUBES ASSISTED ARTESUNATE DELIVERY

Anamika Sahu Gulbake; Aviral Jain; Satish Shilpi; Pramod Kumar; ARVIND GULBAKE

doi:10.22159/ijap.2019v11i2.32887

Authors

Anamika Sahu Gulbake Pharmaceutics Research Laboratory, Department of Pharmaceutics, Adina Institute of Pharmaceutical Sciences, Sagar (M. P.) India.
Aviral Jain JKITE, Department of Pharmacy, Lucknow, U.P. India.
Satish Shilpi Pharma Research Project Laboratory, Department of Pharmaceutics, Ravishankar College of Pharmacy, Bhopal.
Pramod Kumar Helmholtz Zentrum München, Ingolstädter Landstraße 1 · D-85764 Neuherberg, Germany.
ARVIND GULBAKE Centre for Interdisciplinary Research, D.Y. Patil University, Kolhapur, M.S., 416006, INDIA

DOI:

https://doi.org/10.22159/ijap.2019v11i2.32887

Keywords:

Carbon Nanotubes, Cerebral malaria, Artesunate

Abstract

Objective: The present investigation focused on the novel approach using artesunate (AS) loaded mannosylated conjugated multi-walled carbon nanotubes (M-MWCNTs) for site-specific delivery to the brain in the treatment of cerebral malaria (CM).

Methods: The raw MWCNTs were purified by selective oxidation method and then exposed to sequential chemical functionalization according to the following steps: carboxylation, acylation, amine modification and finally, D-mannose conjugation. The AS was loaded via the equilibrium dialysis method in the molar ratio 1:3 of various functionalized sonicated MWCNTs. The functionalized MWCNTs were characterized for elemental analysis, FTIR, TEM, zeta potential and percentage drug entrapment efficiency. The in vitro drug release study was performed on AS conjugated purified MWCNTs (AS-P-MWCNT) and AS conjugated M-MWCNTs. Bio-distribution study was performed on albino rat for quantitative measurement of AS in different organs and blood.

Results: The TEM images of M-MWCNTs indicated their open tubular nature and AS-M-MWCNTs suggests the entrapment of AS. The percent drug entrapment of AS-M-MWCNT was found to be 80.29±3.4 %. In vitro AS release from AS-M-MWCNTs was found in a controlled manner at pH 7.4. The bio-distribution studies clearly indicate the superiority of the AS-M-MWCNTs, as compared to the plain drug towards increasing the accumulation of AS in brain.

Conclusion: The results suggest that AS-M-MWCNTs could be employed as an efficient nano-carrier for antimalarial therapy in cerebral malaria.

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