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A Novel Chronoimpedimetric Glucose Sensor in Real Blood Samples Modified by Glucose‐imprinted Pyrrole‐Aminophenylboronic Acid Modified Screen Printed Electrode    
Yazarlar
Doç. Dr. Zihni Onur UYGUN
Kafkas Üniversitesi, Türkiye
Hilmiye Deniz Ertuğrul Uygun
Dokuz Eylül Üniversitesi, Türkiye
Özet
In this study, a molecularly imprinted sensor technology is engineered to detect glucose in real blood samples by chronoimpedimetrically. The imprinting process of glucose (Glc) was carried out by electrochemical polymerization of aminophenylboronic acid (APBA) and pyrrole (Py) by performing cyclic voltammetry (CV). Afterwards, glucose molecule was removed from imprinted surface by 5 % acetic acid to reveal glucose imprinted cavities. Electrochemical Impedance Spectroscopy (EIS) was used to characterize sensor modification steps and glucose removal. Glucose monitoring process was carried out chronoimpedimetrically(CI) for the first time in real blood samples. Calibration curve was prepared between 20–800 mg/dL. The standard deviations of the 18 calibration curves R2 were calculated as 0.9866±0.0066 to assess reproducibility. Recovery was calculated by using 105 mg/dL Glc Serum Sample, which was monitored by auto analyzer and into this sample 50 mg/dL Glc added and our sensor response was 147.92±2.43 mg/dL, 98.6±1.62 % (n=5). Non-imprinted (NIP) sensor gave no signal for the glucose concentration.
Anahtar Kelimeler
glucose,sensor,molecular imprinting,chronoimpedance,impedance
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Electroanalysis
Dergi ISSN 1040-0397
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 02-2019
Cilt No 32
Doi Numarası 10.1002/elan.201900537
Makale Linki http://dx.doi.org/10.1002/elan.201900537