Skip to main content
padlock icon - secure page this page is secure

Molecular Imprinted Titania Sol–Gel Layer for Conductometric Sensing of p-Nitrophenol

Buy Article:

$106.51 + tax (Refund Policy)

Molecularly imprinted titania based conductometric sensor was developed for selective recognition of p-nitrophenol. Titania sol–gel layer imprinted with p-nitrophenol was synthesized and characterized for its rebinding efficiency. Fourier transform infrared spectroscopy (FTIR) studies indicated the successful imprinting of template and its subsequent removal on washing. Scanning electron microscope (SEM) images of imprinted film before and after washing showed a significant change in porosity of molecular imprinted polymer (MIP) layer i.e., favoring analyte adsorption. The conductometric response of the developed sensor was tested for p-nitrophenol in the range of 0.01–0.1 mM. Non-imprinted titania layer was evaluated to compensate the non-specific binding interactions. Selectivity studies were also conducted by exposing equimolar solutions of para, meta and ortho nitrophenol to MIP layer. Results showed that MIP layer is highly responsive towards its template p-nitrophenol as compared to other isomers. The efficiency of regenerated layer was more than 85% of fresh titania layer even after ten rounds of analyses. Finally, imprinted titania layer was fabricated with Ag-nanoparticles for improving sensor response thus, developing composite layer material for enhanced recognition.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics


Document Type: Research Article

Publication date: November 1, 2014

More about this publication?
  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more