Issue 23, 2017, Issue in Progress
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RSC Advances

1,3-Bis(cyanomethoxy)calix[4]arene capped CdSe quantum dots for the fluorogenic sensing of fluorene†

Rabindra Kumar,a   Meenu Arora,b   Anil K. Jainc  and  J. Nagendra Babu ORCID logo *d  

* Corresponding authors

a Centre for Environmental Science and Technology, School of Environment and Earth Science, Central University of Punjab, Mansa Road, Bathinda-151 001, Punjab, India

b Department of Applied Chemistry, GianiZail Singh College of Engineering and Technology, MRSPTU, Dabwali Road, Bathinda-151 001, Punjab, India

c School of Engineering and Technology, Central University of Punjab, Mansa Road, Bathinda-151 001, Punjab, India

d Centre for Chemical Sciences, School of Basic and Applied Sciences, Central University of Punjab, Mansa Road, Bathinda – 151 001, Punjab, India
E-mail: nagendra.rd@gmail.com

Abstract

Capping of 1,3-bis(cyanomethoxy)-tert-butylcalix[4]arene (CAD) onto CdSe quantum dots (QDs) was characterized by a fluorescence enhancement of the QDs (λem = 580 nm) upon surface interaction with the phenolic moiety of CAD. CAD@QD showed selective and sensitive 1.67 fold fluorescence enhancement in the presence of fluorene among fifteen PAHs. The fluorescence enhancement was characterized by monolayer adsorption of fluorene on to the surface of CAD@QD. The limit of detection for fluorene was observed to be 0.8 nM. This method was used and compared with detection of fluorene in spiked respirable dust (PM10) samples collected during an open biomass (stubble) burning event.

Graphical abstract: 1,3-Bis(cyanomethoxy)calix[4]arene capped CdSe quantum dots for the fluorogenic sensing of fluorene

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Article information

DOI
https://doi.org/10.1039/C7RA00596B
Article type
Paper
Submitted
14 Jan 2017
Accepted
22 Feb 2017
First published
02 Mar 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 14015-14020

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1,3-Bis(cyanomethoxy)calix[4]arene capped CdSe quantum dots for the fluorogenic sensing of fluorene

R. Kumar, M. Arora, A. K. Jain and J. N. Babu, RSC Adv., 2017, 7, 14015 DOI: 10.1039/C7RA00596B

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