A label-free amperometric immunosensor for the detection of carcinoembryonic antigen based on novel magnetic carbon and gold nanocomposites

RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 19961-19969 ◽  
Author(s):  
Faying Li ◽  
Liping Jiang ◽  
Jian Han ◽  
Qing Liu ◽  
Yunhui Dong ◽  
...  

In this work, a novel label-free electrochemical immunosensor was developed for the quantitative detection of carcinoembryonic antigen (CEA).

2021 ◽  
Author(s):  
Xiangrong Huang ◽  
Na Wu ◽  
Wenxiu Liu ◽  
Yazhuo Shang ◽  
Honglai Liu ◽  
...  

In this work, a novel redox hydrogel was proposed for ultrasensitive label-free electrochemical detection of carcinoembryonic antigen (CEA). The redox hydrogel composed by cellulose nanocrystalline (CNC), methylene blue (MB), multi-walled...


RSC Advances ◽  
2015 ◽  
Vol 5 (70) ◽  
pp. 56583-56589 ◽  
Author(s):  
Yulan Wang ◽  
Dan Wu ◽  
Yong Zhang ◽  
Xiang Ren ◽  
Yaoguang Wang ◽  
...  

In this work, a novel and ultrasensitive label-free electrochemical immunosensor was developed for the quantitative detection of alpha fetoprotein (AFP).


2016 ◽  
Vol 40 (11) ◽  
pp. 9046-9053 ◽  
Author(s):  
Sudeshna Chandra ◽  
Christian Gäbler ◽  
Christian Schliebe ◽  
Heinrich Lang ◽  
Dhirendra Bahadur

An amperometric immunosensor based on a redox active ferrocenyl end-grafted PAMAM dendrimer provides highly sensitive detection of immunoglobulin, down to 2 ng mL−1.


2016 ◽  
Vol 8 (24) ◽  
pp. 4861-4866 ◽  
Author(s):  
Yan Jin ◽  
Hongju Mao ◽  
Qinghui Jin ◽  
Jianlong Zhao

A sensitive label-free and contactless impedance immunosensor is developed for the real-time interaction investigation between a cancer biomarker carcinoembryonic antigen (CEA) and its antibody CEA 5909. The immunosensor is proved to have a specific binding process between CEA and CEA 5909 with a detection limit of 100 fg mL−1in PBS.


The Analyst ◽  
2021 ◽  
Author(s):  
Xiaoting Xu ◽  
Xuan Li ◽  
Juncong Miao ◽  
Lei Liu ◽  
Xinyi Huang ◽  
...  

Herein, a label-free electrochemical immunosensor which based on Differential Pulse Voltammetry (DPV) and Amperometric i-t curve (i-t) dual-mode analysis is proposed for early quantitative detection of procalcitonin (PCT). Thanks to...


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