چاپ صفحه |  صفحه نخست سامانه |  چکیده مقاله |  نویسندگان |  دانلود مقاله | دانشگاه علوم پزشکی تبریز |
| miRNAs are attractive factors in cancer research studies due to their important roles for regulating of gene expression. Because of miRNA-21 expression surplus in many types of cancers, so accurate identification is important. Increasing efforts have caused different methods to improve the sensitivity and specificity of detection. Present study is an attempt to report a new electrochemical label-free PNA-based bioassay for detection of miRNA-21. In this study, gold electrode was modified by gold nanoparticles to improve a functional PNA-based biosensor. The EDS and field emission scanning electron microscope (FE-SEM) were used to detect fabrication of biosensor. The electrochemical behavior of sensor was evaluated after inserting of acpcPNA probes and miRNA-21 on the stucture of electrode and analyzed essential parameters such as various concentration of target miRNA, hybridization time, reproducibility, stability, and applicability. The results of study demonstrated that engineered biosensor was successfully fabricated. The findings showed the highest amount of current in 5 minutes hybridization time, with suitable reproducibility and stability. This innovative miRNA-based biosensor presents a sensitive and specific method in fast and may be lab-on chip assay in future. |
| نویسنده | نفر چندم مقاله |
|---|---|
| نازنین فتحی | اول |
| آرزو سعادتی | دوم |
| محمد حسن زاده محله | سوم |
| محمد سمیعی | چهارم |
| نام فایل | تاریخ درج فایل | اندازه فایل | دانلود |
|---|---|---|---|
| 273.pdf | 1400/04/18 | 19096613 | دانلود |
