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Differential nano-bio interactions and toxicity effects of pristine versus functionalized graphene
Abhilash Sasidharan1, L S Panchakarla, Parwathy Chandran
1Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Cochin, 682 041, Kerala, India.
Abstract:
We report the effect of carboxyl functionalization of graphene in pacifying its strong hydrophobic interaction with cells and associated toxic effects. Pristine graphene was found to accumulate on the cell membrane causing high oxidative stress leading to apoptosis, whereas carboxyl functionalized hydrophilic graphene was internalized by the cells without causing any toxicity.
