Nirmal K. Das

A New Highly Selective, Ratiometric and Colorimetric Fluorescence Sensor for Cu²⁺ with a Remarkable Red Shift in Absorption and Emission Spectra Based on Internal Charge Transfer

Shyamaprosad Goswami, Debabrata Sen, Nirmal K. Das · Organic Letters · 2010 · 266 citations

Luminescent Copper Nanoclusters as a Specific Cell-Imaging Probe and a Selective Metal Ion Sensor

Nirmal K. Das, Subhadip Ghosh, Amulya Priya et al. · The Journal of Physical Chemistry C · 2015 · 172 citations

Engineering, Nanocluster, Metal Nanoparticles +20

Initiation of Mitosis and Cell Division by Kinetin and Indoleacetic Acid in Excised Tobacco Pith Tissue

Nirmal K. Das, Klaus Pätau, Folke Skoog · Physiologia Plantarum · 1956 · 148 citations

Developmental Biology, Cell Division, Indoleacetic Acid +7

A highly selective triphenylamine-based indolylmethane derivatives as colorimetric and turn-off fluorimetric sensor toward Cu2+ detection by deprotonation of secondary amines

Ajit Kumar Mahapatra, Giridhari Hazra, Nirmal K. Das et al. · Sensors and Actuators B Chemical · 2011 · 125 citations

Chemical Engineering, Engineering, Turn-off Fluorimetric Sensor +6

A new rhodamine based colorimetric ‘off–on’ fluorescence sensor selective for Pd2+ along with the first bound X-ray crystal structure

Shyamaprosad Goswami, Debabrata Sen, Nirmal K. Das et al. · Chemical Communications · 2011 · 120 citations