Abstract
Hepatitis B virus (HBV) can cause viral infection that attacks the liver and it is a major global health problem that puts people at a high risk of death from cirrhosis of the liver and liver cancer. HBV has infected one-third of the worldwide population, and 350 million people suffer from chronic HBV infection. For these reasons, development of an accurate, sensitive, and expedient detection method for diagnosing, monitoring, and assessing therapeutic response of HBV is very necessary and urgent for public health and disease control. Here we report a new strategy for detection of viral load quantitation of HBV based on colorimetric polymerase chain reaction (PCR) with DNAzyme-containing probe. The special DNAzyme adopting a G-quadruplex structure exhibited peroxidase-like activity in the presence of hemin to report colorimetric signal. This method has shown a broad range of linearity and high sensitivity. This study builds an important foundation to achieve the specific and accurate detection level of HBV DNA with a low-cost and effective method in helping diagnosing, preventing and protecting human health form HBV all over the world, and especially in developing countries.
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Acknowledgments
This study was supported by the financial supports from the CAS (Hundreds of Talents Program), National Science Foundation of China (Grant No. 21172215 and No. 21102140), Innovation Program of the CAS (Grant No. KSCX2-EW-J-22).
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Yang, L., Li, M., Du, F., Chen, G., Yasmeen, A., Tang, Z. (2017). A Novel Colorimetric PCR-Based Biosensor for Detection and Quantification of Hepatitis B Virus. In: Rasooly, A., Prickril, B. (eds) Biosensors and Biodetection. Methods in Molecular Biology, vol 1571. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-6848-0_22
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DOI: https://doi.org/10.1007/978-1-4939-6848-0_22
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