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Non‐invasive detection of Crohns Disease with label‐free detection of calprotectin by impedimetric aptasensor    
Yazarlar
Çiğdem Gözde Aslan
Türkiye
Hilmiye Deniz Ertuğrul Uygun
Türkiye
 Zihni Onur UYGUN Zihni Onur UYGUN
Türkiye
Nalan Gülşen Ünal
Türkiye
Yasemin Akçay
Türkiye
Özet
Crohn's disease, a chronic inflammatory disorder affecting the gastrointestinal tract, is on the rise, posing significant health challenges due to its potential long-term impact on intestinal health. Early and accurate detection of this disease is crucial for effective treatment. This study introduces an innovative approach to diagnosing Crohn's disease by utilizing a rapid and precise biosensor system as an alternative to conventional detection techniques. Utilization of an S100 A8 targeting aptamer for the specific identification of calprotectin, a well-established biomarker associated with Crohn's disease was used as a biorecognition receptor. The aptamer is immobilized on gold nanoparticles via cysteamine and avidin to construct a biosensor. The biosensor was compared with traditional quantitative lateral-flow tests (QLFA). The developed biosensor demonstrates that detection in 900 seconds. Performance parameters, including a limit of detection (LOD) as 5.57 μg/g and a limit of quantification (LOQ) as 16.89 μg/g, are determined through electrochemical impedance spectroscopy (EIS). Accordingly, the calibration curve equation was calculated as y=3.9736x + 1570.4 and the regression coefficient was found as R2=0.9917. These results showed that biosensor‘s capability to reliably measure calprotectin levels in real samples.
Anahtar Kelimeler
biosensor | calprotectin | chronoimpedance | Crohn's disease | 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 Q3
Makale Dili Türkçe
Basım Tarihi 12-2023
Cilt No 35
Sayı 12
Sayfalar 1 / 7
Doi Numarası 10.1002/elan.202300119
Makale Linki http://dx.doi.org/10.1002/elan.202300119