Conductometric sensor with calixarene-based chemosensitive element for the arginine detection

Conductometric sensor with calixarene-based chemosensitive element for the arginine detection A possibility of the creation of conductometric chemosensor with calixarene-based sensitive element for arginine detection was evaluated. The surface of gold interdigitated electrodes of conductometric transducer was modified with calixarene. The optimal concentration of calixarene for preparation of chemosensitive element was determined to be 100 mg/ml. The basic analytical characteristics of the developed chemosensor were determined (sensitivity to arginine—37.5 μS/mM, limit of arginine detection 5 μM, linear range 0.005–150 μM, response time 150 s) and analyzed as regards its application for arginine determination. It was established for all types of developed sensors that they have good reproducibility of signals to arginine over one working day; the measurement error (RSD) did not exceed 5%. The selectivity of calixarene-based chemosensor to arginine was investigated as well as the selectivity of calixarene complexation with arginine compared with other amino acids. Keywords Chemosensor · Calixarene · Arginine · Conductometric transducer Introduction agmatine and other substances. Arginine participates in maintaining the charge of many proteins (Tapiero et  al. The amino acid l -arginine, partially substitutable in the 2002), promotes the detoxification of ammonia, secretion human body and synthesized in insufficient quantities, is of hormones and renders immunomodulatory function by one of the most polarized, positively charged amino acids increasing the activity of http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chemical Papers Springer Journals

Conductometric sensor with calixarene-based chemosensitive element for the arginine detection

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Publisher
Springer International Publishing
Copyright
Copyright © 2018 by Institute of Chemistry, Slovak Academy of Sciences
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering; Biochemistry, general; Medicinal Chemistry; Materials Science, general; Biotechnology
ISSN
0366-6352
eISSN
1336-9075
D.O.I.
10.1007/s11696-018-0515-6
Publisher site
See Article on Publisher Site

Abstract

A possibility of the creation of conductometric chemosensor with calixarene-based sensitive element for arginine detection was evaluated. The surface of gold interdigitated electrodes of conductometric transducer was modified with calixarene. The optimal concentration of calixarene for preparation of chemosensitive element was determined to be 100 mg/ml. The basic analytical characteristics of the developed chemosensor were determined (sensitivity to arginine—37.5 μS/mM, limit of arginine detection 5 μM, linear range 0.005–150 μM, response time 150 s) and analyzed as regards its application for arginine determination. It was established for all types of developed sensors that they have good reproducibility of signals to arginine over one working day; the measurement error (RSD) did not exceed 5%. The selectivity of calixarene-based chemosensor to arginine was investigated as well as the selectivity of calixarene complexation with arginine compared with other amino acids. Keywords Chemosensor · Calixarene · Arginine · Conductometric transducer Introduction agmatine and other substances. Arginine participates in maintaining the charge of many proteins (Tapiero et  al. The amino acid l -arginine, partially substitutable in the 2002), promotes the detoxification of ammonia, secretion human body and synthesized in insufficient quantities, is of hormones and renders immunomodulatory function by one of the most polarized, positively charged amino acids increasing the activity of

Journal

Chemical PapersSpringer Journals

Published: May 31, 2018

References

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