A label-free amperometric immunosensor for detection of zearalenone based on trimetallic Au-core/AgPt-shell nanorattles and mesoporous carbon

2014 ◽  
Author(s):  
Lei Liu ◽  
Yingjun Chao ◽  
Wei Cao ◽  
Yulan Wang ◽  
Chuannan Luo ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Label Free ◽  
Amperometric Immunosensor

A Label-Free Electrochemical Aptasensor for the Rapid Detection of Tetracycline Based on Ordered Mesoporous Carbon–Fe3O4

2018 ◽  
Vol 71 (3) ◽  
pp. 170 ◽  
Author(s):  
Xuejia Zhan ◽  
Guangzhi Hu ◽  
Thomas Wagberg ◽  
Dongwei Zhang ◽  
Pei Zhou
Keyword(s):  
Photoelectron Spectroscopy ◽  
Mesoporous Carbon ◽  
Physical Adsorption ◽  
Differential Pulse ◽  
Ordered Mesoporous Carbon ◽  
Label Free ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ordered Mesoporous ◽  
Modification Procedure

A novel aptasensor based on a tetracycline (TET) aptamer immobilized by physical adsorption on an ordered mesoporous carbon–Fe3O4 (OMC-Fe3O4)-modified screen-printed electrode surface was successfully fabricated. OMC-Fe3O4 was characterized by scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The modification procedure of the aptasensor was characterized by cyclic voltammetry. Interaction between the TET aptamer and target was determined by differential pulse voltammetry. Under optimal conditions, the proposed aptasensor exhibited good electrochemical sensitivity to TET in a concentration range of 5 nM to 10 μM, with a detection limit of 0.8 nM (S/N = 3). This aptasensor exhibited satisfactory specificity, reproducibility, and stability.

scholarly journals Fabrication of a label-free electrochemical immunosensor using a redox active ferrocenyl dendrimer

2016 ◽  
Vol 40 (11) ◽  
pp. 9046-9053 ◽  
Author(s):  
Sudeshna Chandra ◽  
Christian Gäbler ◽  
Christian Schliebe ◽  
Heinrich Lang ◽  
Dhirendra Bahadur
Keyword(s):  
Pamam Dendrimer ◽  
Electrochemical Immunosensor ◽  
Sensitive Detection ◽  
Label Free ◽  
Amperometric Immunosensor ◽  
Redox Active ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

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.

Development of a novel label-free amperometric immunosensor for the detection of okadaic acid

2012 ◽  
Vol 724 ◽  
pp. 92-97 ◽  
Author(s):  
Akhtar Hayat ◽  
Lise Barthelmebs ◽  
Audrey Sassolas ◽  
Jean-Louis Marty
Keyword(s):  
Okadaic Acid ◽  
Label Free ◽  
Amperometric Immunosensor

A sensitive photoelectrochemical immunoassay based on mesoporous carbon/core–shell quantum dots as donor–acceptor light-harvesting architectures

2015 ◽  
Vol 39 (1) ◽  
pp. 731-738 ◽  
Author(s):  
Rongxia Li ◽  
Jian Gao ◽  
Picheng Gao ◽  
Sen Zhang ◽  
Yixin Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Mesoporous Carbon ◽  
Light Harvesting ◽  
Core Shell ◽  
Label Free ◽  
Conductive Material ◽  
Donor Acceptor ◽  
Carbon Core ◽  
Photoelectrochemical Immunoassay

A label-free PEC biosensor based on the amplification of mesoporous conductive material and core–shell QDs as light-harvesting architecture.

A label-free amperometric immunosensor based on biocompatible conductive redox chitosan-ferrocene/gold nanoparticles matrix

2009 ◽  
Vol 25 (4) ◽  
pp. 852-857 ◽  
Author(s):  
Jian-Ding Qiu ◽  
Ru-Ping Liang ◽  
Rui Wang ◽  
Li-Xia Fan ◽  
Yi-Wang Chen ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Label Free ◽  
Amperometric Immunosensor

Label-Free Amperometric Immunosensor Based on Graphene Oxide and Ferrocene-Chitosan Nanocomposites for Detection of Hepatis B Virus Antigen

2017 ◽  
Vol 13 (10) ◽  
pp. 1300-1308 ◽  
Author(s):  
Feijun Zhao ◽  
Liangli Cao ◽  
Yongbo Liang ◽  
Zong Wu ◽  
Zhencheng Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Virus Antigen ◽  
Label Free ◽  
Amperometric Immunosensor ◽  
B Virus
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