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Sensors 2015, 15(12), 31987-31998; doi:10.3390/s151229902

Synthesis and Sensing Applications of Fluorescent 3-Cinnamoyl Coumarins

1
Department of Chemistry, University of Delhi, Delhi 110007, India
2
Center for Advanced Materials, University of Massachusetts Lowell, Lowell, MA 01854, USA
3
Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
*
Authors to whom correspondence should be addressed.
Academic Editor: Ki-Hyun Kim
Received: 26 September 2015 / Revised: 5 December 2015 / Accepted: 10 December 2015 / Published: 19 December 2015
(This article belongs to the Special Issue The Use of New and/or Improved Materials for Sensing Applications)
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Abstract

We have synthesized two novel fluorescent 3-(4-diethylaminocinnamoyl) coumarins that exhibit fluorescence quenching upon exposure to a nerve agent simulant, diethylchlorophosphate (DCP), providing a basis for rapid and sensitive DCP chemosensing. Furthermore, these coumarin derivatives display two-photon fluorescence upon illumination with near-infrared laser pulses and their two-photon (TP) absorption cross-section was evaluated. The potential for TP bio-imaging of these compounds was investigated by their cellular uptake in HeLa cells by TP confocal microscopy. View Full-Text
Keywords: 3-(4-diethylaminocinnamoyl) coumarins; fluorescence; DCP; nerve gas sensors; two-photon fluorescence 3-(4-diethylaminocinnamoyl) coumarins; fluorescence; DCP; nerve gas sensors; two-photon fluorescence
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Yadav, P.; Gill, H.S.; Chand, K.; Li, L.; Kumar, J.; Sharma, S.K. Synthesis and Sensing Applications of Fluorescent 3-Cinnamoyl Coumarins. Sensors 2015, 15, 31987-31998.

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