Emission Based Sensing of Subnanomolar Dissolved Carbon Dioxide Exploiting Electrospun Nanofibers


Aydogdu S., ERTEKİN K., Gocmenturk M., Ergun Y., Celik E.

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS, vol.63, no.4, pp.197-206, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 63 Issue: 4
  • Publication Date: 2014
  • Doi Number: 10.1080/00914037.2013.812091
  • Journal Name: INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.197-206
  • Keywords: Dissolved carbon dioxide, electrospun nanofiber, fluorescence, optical bicarbonate sensor, OPTICAL SENSOR, CO2, PH, POLYMER, MICROSENSOR, STABILITY, TRANSPORT, MEMBRANES, OXYGEN, LAYER
  • Dokuz Eylül University Affiliated: Yes

Abstract

In this work, the authors report a novel emission-based optical sensor for dissolved carbon dioxide. Ethyl cellulose has been used together with an imidazolium based ionic liquid as matrix material. Sensors were fabricated either in form of continuous thin films or nanofibers. The offered composition exhibited enhanced stability and excellent detection limits for sensing of bicarbonate. The preliminary analysis of calibration plots show that the sensitivity of electrospun nanofibrous membranes to detect bicarbonate is at least 5-fold better than that of the thin films. The stability of the indicator in the employed matrix was superior to the previously reported ones.