NDLI: Optical CO$_{2}$ Sensing with Ionic Liquid Doped Electrospun Nanofibers

Content Provider	Springer Nature Link
Author	Aydogdu, Sibel Ertekin, Kadriye Suslu, Aslihan Ozdemir, Mehtap Celik, Erdal Cocen, Umit
Copyright Year	2010
Abstract	The first use of electrospun nanofibrous materials as highly responsive fluorescence quenching-based optical CO$_{2}$ sensors is reported. Poly(methyl methacrylate) and ethyl cellulose were used as polymeric materials. Sensing slides were fabricated by electrospinning technique. A fiber-optic bundle was used for the gas detection. CO$_{2}$ sensors based on the change in the fluorescence signal intensity of ion pair form of 8-hydroxypyrene-1,3,6-trisulfonic acid (HPTS). The sensor slides showed high sensitivities due to the high surface area-to-volume ratio of the nanofibrous membrane structures. The preliminary results of Stern-Volmer analysis show that the sensitivities of electrospun nanofibrous membranes to detect CO$_{2}$ are 24 to 120 fold higher than those of the thin film based sensors. The response times of the sensing reagents were short and the signal changes were fully reversible. The stability of ion pair form of HPTS in the employed matrix materials was excellent and when stored in the ambient air of the laboratory there was no significant drift in signal intensity after 7 months. Our stability tests are still in progress.
Starting Page	607
Ending Page	613
Page Count	7
File Format	PDF
ISSN	10530509
Journal	Journal of Fluorescence
Volume Number	21
Issue Number	2
e-ISSN	15734994
Language	English
Publisher	Springer US
Publisher Date	2010-10-14
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Electrospinning Electrospun nano fiber Optical CO$_{2}$ sensor Nano-scale CO$_{2}$ sensor Biotechnology Biophysics and Biological Physics Biomedicine general Biochemistry Analytical Chemistry
Content Type	Text
Resource Type	Article
Subject	Sociology and Political Science Spectroscopy Law Biochemistry Clinical Biochemistry Clinical Psychology

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