A dual signal amplification-assisted DNAzyme biosensor for ultrasensitive detection of Argonaute 2 activity

2018 ◽  
Vol 54 (97) ◽  
pp. 13678-13681 ◽  
Author(s):  
Dandan Zhang ◽  
Fei Ma ◽  
Junhong Leng ◽  
Chun-yang Zhang

We develop a new dual-signal amplification-assisted DNAzyme biosensor for sensitive detection of Argonaute 2 (Ago2) activity.


2019 ◽  
Vol 279 ◽  
pp. 440-446 ◽  
Author(s):  
Leiliang He ◽  
Lihua Ding ◽  
Songcheng Yu ◽  
Fei Yu ◽  
Yongmei Tian ◽  
...  


Molecules ◽  
2019 ◽  
Vol 24 (23) ◽  
pp. 4364
Author(s):  
Shouping Zhang ◽  
Bin Hu ◽  
Xiaojing Xia ◽  
Yanzhao Xu ◽  
Bolin Hang ◽  
...  

The frequent emergence of secondary infection and immunosuppression after porcine circovirus type 2 (PCV2) infection highlights the need to develop sensitive detection methods. A dual-signal amplification enzyme-linked immunosorbent assay (ELISA) based on a microplate coated with gold nanoparticle layers (GNPL) and tyramide signal amplification (TSA) was established. Results confirmed that the microplates coated with GNPL have a strong binding ability to the antibody without affecting the biological activity of the antibody. The microplates coated with GNPL have strong binding ability to the antibody, and the amplification of the tyramide signal is combined to further improve the sensitivity of PCV2. The PCV2 antibody does not crossreact with other viruses, demonstrating that the method has good specificity. A dual-signal amplification strategy is developed using microplates modified with GNPL and TSA to sensitively detect PCV2.





2020 ◽  
Vol 56 (14) ◽  
pp. 2119-2122 ◽  
Author(s):  
Zi-yue Wang ◽  
Cheng-peng Zhang ◽  
Chun-yang Zhang

We integrate a peptide–DNA conjugate with multiple cyclic signal amplification for the sensitive detection of cathepsin B activity.



2019 ◽  
Vol 55 (48) ◽  
pp. 6827-6830 ◽  
Author(s):  
Yan Zhang ◽  
Xin-yan Wang ◽  
Xianwei Su ◽  
Chun-yang Zhang

We develop a new method for sensitive detection of long noncoding RNAs using duplex-specific nuclease-actuated cyclic enzymatic repairing-mediated signal amplification.



2020 ◽  
Vol 150 ◽  
pp. 111895 ◽  
Author(s):  
Liying Zhao ◽  
Huaixia Yang ◽  
Xiaoke Zheng ◽  
Jinge Li ◽  
Lihe Jian ◽  
...  




Sign in / Sign up

Export Citation Format

Share Document