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Journal of Materials Science and Nanotechnology | Volume: 2
August 20-21, 2018 | Paris, France
Materials Science and Materials Chemistry
International Conference on
Functionalized silver nano-sensor for colorimetric detection of Hg2+ ions: Facile synthesis and their
docking studies
Shiva Prasad Kollur, Govindaraju Shruthi
and
Chandan Shivamallu
Manipal Centre for Natural Sciences, India
I
n the present study, we describe the facile synthesis of
silver nanoparticles (AgNPs) and their functionalized
nanostructures with 2-aminopyrimidine-4,6-diol (APD-AgNPs)
for Hg
2+
ion detection. The promising colourimetric response of
APD-AgNPs to detect Hg
2+
ions were noticed with naked eyes
and spectroscopic changes were examined by using UV-Visible
spectrophotometer. The aggregation of APD-AgNPs up on
additionofHg
2+
ionswasdue tochelationeffectof functionalized
nanostructures and exhibit colour change from pale brown to
deep yellow colour. The probing sensitivity was observed within
fiveminutes with a detection limit of about 0.35 μM/L. The TEM
images of APD-AgNPs showed poly-dispersed morphologies
having hexagonal, heptagonal and spherical nanostructures
with average size between 10 to 40 nm. Furthermore, the
sensing behaviour of APD-AgNPs towards Hg
2+
ions detection
was investigated using docking and interaction studies.
Speaker Biography
Shiva Prasad Kollur received his Ph.D. degree from the University of Mysore, Mysuru in
2012. He persued his post-doctoral studies at Indian Institute of Science, Bengaluru. He
joined as an Assistant Professor in Chemistry at Manipal Academy of Higher Education,
Manipal in 2015. His research interests include Coordination Chemistry, Bioinorganic
Chemistry, Materials Chemistry, Sustainable Chemistry and development of novel green
synthetic approach for the production of nanomaterials.
e:
shivaprasad.k@manipal.edu