Chemistry Colloquium by Dr. Dulal Senapati on 19th July 2019 | Shiv Nadar University
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Chemistry Colloquium by Dr. Dulal Senapati on 19th July 2019

Anisotropic and Zone Specific Nanoscale Crystallization: Fundamentals and Applications in Sensing & Catalysis

Dr. Dulal Senapati
Associate Professor-F
Saha Institute of Nuclear Physics (SINP)
Homi Bhabha National Institute (HBNI) Kolkata, India

Abstract: There is an enormous transition in research interest between the 20th and 21st century. This transition bears the signature of research interest swing between cosmology with dimension
of universe and tiny nanoparticle with (electron) microscopic nature. According to the great Richard Feynman ‘there’s plenty of room at the bottom’. Playing with dimensions allow us to
design things bigger or smaller which scientifically we termed as ‘Bottom up’ or ‘top down’respectively. Chemists are always fascinated to manipulate atoms to make newer molecules,
supramolecules and crystals. Our physical world which is visible to us is actually made up by these microscopic objects. But there is a missing link between atomic or molecular world and our
everyday physical world. This missing link which bridges between the atomic or molecular world with our daily physical world with dimensions in the range of nanometer, one billionth of
a meter, is known as nanomaterials and the field of science which deals with them is known as nanoscience. Though the concept of nanoscience was an idiosyncratic thinking few decades
back, nanomaterials in the present time acts as tiny machines for the mankind. Due to their superlative optical, mechanical, electrical and magnetic properties find universal applications in
a wide range of fields which ranges from chemistry to physics, textile to automotive, biology to pharmaceuticals or even supercomputers to art & culture. In this lecture I will concentrate more
on technical aspects of synthesizing anisotropic nanomaterials, conditions, procedures, characterizations and atom-to-atom analysis. Along with their designing I will elaborate the
importance of their zone specific crystallization to induce their strain and reactivity which ultimately direct us to apply them in different demanding fields which include nanomedicine
(patholysis, targeted drug delivery and photodynamic therapy), nanoantibiotics (pathogenic bacteria and virus), homogeneous and heterogeneous catalysis (chemical, electrochemical and
photochemical), suparlattice materials for solar energy, optoelectronic sensing, and excited state dynamics.

1. Crystal-defect-induced facet-dependent electrocatalytic activity of 3D gold nanoflowers for the selective nanomolar detection of ascorbic acid. De, S. K.; Mondal, S.; Sen, P.; Pal, U.; Pathak, B.; Rawat, K. S.; Bardhan, M.; Bhattacharya, M.; Satpati, B.; De, A.; Senapati,D. Nanoscale 2018, 10, 11091-11102.
2. Nanomaterials for targeted detection and photothermal killing of bacteria. Ray, P. C.;Khan, S. A.; Singh, A. K.; Senapati, D.; Fan, Z. Chemical Society Reviews, 2012, 41, 3193-3209.
3. Wide Range Morphological Transition of Silver Nanoprism by Selective Interaction with As (III): Tuning-Detuning of Surface Plasmon Offers to Decode the Mechanism. Das Chakraborty, S.; Mondal, S.; Satpati, B.; Pal, U.; De, S. K.; Bhattacharya, M.; Ray, S.; Senapati, D.

Event Date: 
Friday, July 19, 2019 -

Department of Chemistry, School of Natural Sciences is pleased to announce a Colloquium by 

Dr. Dulal Senapati, 

Saha Institute of Nuclear Physics (SINP)

Homi Bhabha National Institute (HBNI) 

Talk Title: Anisotropic and Zone Specific Nanoscale Crystallization Fundamentals and Applications in Sensing & Catalysis

Venue: D330
Date: 19th July 2019, Friday
Time: 10.00 AM – 11.00 AM

Friday 19, Jul 2019
10:00 AM - 11:00 AM