An Aptamer-based Biosensor for Troponin I Detection in Diagnosis of Myocardial Infarction

سال انتشار: 1397
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 41

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شناسه ملی سند علمی:

JR_JBPE-8-2_003

تاریخ نمایه سازی: 30 دی 1402

چکیده مقاله:

Background: Acute myocardial infarction (MI) accounts for one third of deaths. Cardiac troponin I (TnI) is a reliable biomarker of cardiac muscle tissue injury and is employed in the early diagnosis of MI.Objectives: In this study, a molecular method is introduced to early diagnosis of MI by rapid detection of TnI.Materials and Methods: The detection method was based on electrochemical aptasensing, being developed using different methods and evaluation steps. A gold electrode was used as a transducer to successful immobilize ۷۶base aptamer to fabricate a TnI biosensor.Results: The designed aptasensor could detect TnI in a range of ۰.۰۳ to ۲.۰ ng mL-۱ without using any label, pre-concentration or amplification steps. The limit of detection was attained as ۱۰ pg mL-۱ without significant trouble of interfering species. The TnI biosensor demonestrated a stable, regenerative and reproducible function. ۸۹ human samples were used to evaluate the performance of the TnI biosensor, and it represented ۱۰۰% and ۸۱%, diagnostic sensitivity and specificity, respectively.Conclusions: This aptasensor may be used as an applicable tool in the future of early medical diagnosis of MI.

نویسندگان

M Negahdary

Yazd Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran

M Behjati-Ardakani

Yazd Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran

N Sattarahmady

Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

H Heli

Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

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