Fluorescent optical fibre chemosensor for the detection of mercury

T. Hien Nguyen; Stephen P. Wren; Tong Sun; Kenneth T. V. Grattan

doi:10.1117/12.2243054

24 November 2016 Fluorescent optical fibre chemosensor for the detection of mercury

T. Hien Nguyen, Stephen P. Wren, Tong Sun, Kenneth T. V. Grattan

Proceedings Volume 10013, SPIE BioPhotonics Australasia; 100131U (2016) https://doi.org/10.1117/12.2243054
Event: SPIE BioPhotonics Australasia, 2016, Adelaide, Australia

Abstract

This work aims to develop a stable, compact and portable fibre optic sensing system which is capable of real time detection of the mercury ion (II), Hg²⁺. A novel fluorescent polymeric material for Hg²⁺ detection, based on a coumarin derivative (acting as the fluorophore) and an azathia crown ether moiety (acting as the mercury ion receptor), has been designed and synthesized. The material was covalently attached to the distal end of an optical fibre and exhibited a significant increase in fluorescence intensity in response to Hg²⁺ in the μM concentration range via a photoinduced electron transfer (PET) mechanism. The sensor has also demonstrated a high selectivity for Hg²⁺ over other metal ions. A washing protocol was identified for sensor regeneration, allowing the probe to be re-used. The approach developed in this work can also be used for the preparation of sensors for other heavy metals.

Citation Download Citation

T. Hien Nguyen, Stephen P. Wren, Tong Sun, and Kenneth T. V. Grattan "Fluorescent optical fibre chemosensor for the detection of mercury", Proc. SPIE 10013, SPIE BioPhotonics Australasia, 100131U (24 November 2016); https://doi.org/10.1117/12.2243054

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available