Prof. Anchal Srivastava

We report here the upscaled synthesis of green luminescent functionalized graphene quantum dots (FGQDs) by using an inexpensive and commonly occurring natural precursor viz. graphite powder. We observed in our sample that photoluminescence increases for excitation wavelengths of 300 nm to 350 nm and then decreases when excited at 375 to 425 nm for FGQDs at neutral pH. We found that the synthesized FGQDs do not show a drastic change in emission properties when kept under different pH conditions, which makes them a potential candidate for in vivo imaging, where the pH of the culture media plays a crucial role in the maintenance of the fluorescence. Water solubility, and excellent photostability along with low cytotoxicity of FGQDs are manifested as a remarkable bioimaging material.

About Me

Anchal Srivastava received his Ph.D. from Banaras Hindu University in 2002. He continued in the same department as a post-doctoral fellow and later joined the department as a lecturer in 2004. He is currently serving as a professor in the department of physics, Institute of Science, B.H.U. He has expertise in the growth and application of carbon-based nanomaterials. He has been awarded the Max Planck India fellowship and carried out his research at Max Planck Institute of Solid-State Physics, Stuttgart, Germany with the group of Professor Klaus Von Klitzing from (2008- 2011). He was awarded the prestigious BOYSCAST fellowship from the government of India in 2008-09 during which time he carried out research on graphene and related materials with Professor P.M. Ajayan at Rice University. He was also a visiting research scholar at Rensselaer Polytechnic Institute, USA in 2006.

Prof. Anchal Srivastava

Prof. Anchal Srivastava

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