Electrochemical Biosensor for Naphthalene Acetic Acid in Fruits and Vegetables Based on Lipid Films with Incorporated Auxin‐binding Protein Receptor Using Graphene Electrodes. Issue 9 (17th May 2016)

• Record Type: Journal Article
• Authors: Bratakou, Spyridoula; Nikoleli, Georgia‐Paraskevi; Siontorou, Christina G.; Karapetis, Stephanos; Nikolelis, Dimitrios P.; Tzamtzis, Nikolaos
• Is Part Of: Electroanalysis. Volume 28:Issue 9(2016)
• Page Start: 2171
• Page End: 2177
• Publication Date: 2016-05-17
• Subjects: stabilized lipid films -- biosensor -- electrochemistry -- auxin-binding protein 1 -- naphthalene acetic acid; Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.201600152
• Languages: English
• ISSNs: 1040-0397

Abstract

Abstract: The present work describes a miniaturized potentiometric naphthalene acetic acid (NAA) sensor on graphene nanosheets with incorporated lipid films. Auxin‐binding protein 1 receptor immobilized on the stabilized lipid films provided adequate selectivity for detection over a wide range of hormone concentrations, fast response time of ca. 5 min, and detection limit of 10 nM. The proposed sensor is easy to construct and exhibits good reproducibility, reusability, selectivity, long shelf life and high sensitivity of ca. 56 mV/decade of hormone concentration. The reliability of the biosensor was successfully evaluated using a wide range of NAA‐spiked fruits and vegetables. Abstract :