Fe3O4NPs mediated nonenzymatic electrochemical immunosensor for the total protein of Nosema bombycis detection without addition of substrate

2015 ◽  
Vol 51 (33) ◽  
pp. 7132-7135 ◽  
Author(s):  
Hua Xie ◽  
Qiqi Zhang ◽  
Qin Wang ◽  
Yaqin Chai ◽  
Yali Yuan ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Total Protein ◽  
Signal Amplification ◽  
Electrochemical Immunosensor ◽  
Nosema Bombycis

This work described an immunosensor for total protein of Nosema bombycis detection based on Fe3O4NPs as catalyst toward methylene blue with the aid of Fe3O4NPs–DNA dendrimers for signal amplification.

An amplified electrochemical proximity immunoassay for the total protein of Nosema bombycis based on the catalytic activity of Fe3O4NPs towards methylene blue

2016 ◽  
Vol 81 ◽  
pp. 382-387 ◽  
Author(s):  
Qin Wang ◽  
Xianxue Gan ◽  
Ruhua Zang ◽  
Yaqin Chai ◽  
Yali Yuan ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Catalytic Activity ◽  
Total Protein ◽  
Nosema Bombycis

Construction of electrochemical immunosensor based on redox hydrogel for ultrasensitive detection of carcinoembryonic antigen

2021 ◽  
Author(s):  
Xiangrong Huang ◽  
Na Wu ◽  
Wenxiu Liu ◽  
Yazhuo Shang ◽  
Honglai Liu ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Carcinoembryonic Antigen ◽  
Electrochemical Detection ◽  
Electrochemical Immunosensor ◽  
Ultrasensitive Detection ◽  
Label Free

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...

A highly sensitive electrochemical microRNA-21 biosensor based on intercalating methylene blue signal amplification and a highly dispersed gold nanoparticles/graphene/polypyrrole composite

The Analyst ◽  
2021 ◽  
Vol 146 (8) ◽  
pp. 2679-2688
Author(s):  
Chammari Pothipor ◽  
Noppadol Aroonyadet ◽  
Suwussa Bamrungsap ◽  
Jaroon Jakmunee ◽  
Kontad Ounnunkad
Keyword(s):  
Methylene Blue ◽  
Gold Nanoparticles ◽  
Signal Amplification ◽  
Electrochemical Biosensor ◽  
Highly Sensitive ◽  
Highly Dispersed ◽  
Polypyrrole Composite ◽  
Amplification Strategy ◽  
Dispersed Gold ◽  
Potential Tool

An ultrasensitive electrochemical biosensor based on a gold nanoparticles/graphene/polypyrrole composite modified electrode and a signal amplification strategy employing methylene blue is developed as a potential tool for the detection of miRNA-21.

Highly sensitive electrochemical immunosensor for the simultaneous detection of multiple tumor markers for signal amplification

Talanta ◽  
2021 ◽  
Vol 226 ◽  
pp. 122133
Author(s):  
Na Wang ◽  
Jing Wang ◽  
Xiaoqing Zhao ◽  
Hou Chen ◽  
Hui Xu ◽  
...  
Keyword(s):  
Tumor Markers ◽  
Signal Amplification ◽  
Simultaneous Detection ◽  
Electrochemical Immunosensor ◽  
Multiple Tumor ◽  
Highly Sensitive

scholarly journals Metal Nanoparticle and Quantum Dot Tags for Signal Amplification in Electrochemical Immunosensors for Biomarker Detection

Chemosensors ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 85
Author(s):  
Anton Popov ◽  
Benediktas Brasiunas ◽  
Asta Kausaite-Minkstimiene ◽  
Almira Ramanaviciene
Keyword(s):  
Signal Amplification ◽  
Electrochemical Immunosensor ◽  
Metal Nanoparticle ◽  
Biomarker Detection ◽  
Analytical Instruments ◽  
Electrochemical Immunosensors ◽  
Highly Sensitive ◽  
Recent Developments ◽  
Electrochemical Signal ◽  
Detection Of Biomarkers

With the increasing importance of healthcare and clinical diagnosis, as well as the growing demand for highly sensitive analytical instruments, immunosensors have received considerable attention. In this review, electrochemical immunosensor signal amplification strategies using metal nanoparticles (MNPs) and quantum dots (Qdots) as tags are overviewed, focusing on recent developments in the ultrasensitive detection of biomarkers. MNPs and Qdots can be used separately or in combination with other nanostructures, while performing the function of nanocarriers, electroactive labels, or catalysts. Thus, different functions of MNPs and Qdots as well as recent advances in electrochemical signal amplification are discussed. Additionally, the methods most often used for antibody immobilization on nanoparticles, immunoassay formats, and electrochemical methods for indirect biomarker detection are overviewed.

A novel electrochemical immunosensor based on dual signal amplification of gold nanoparticles and telomerase extension reaction

2014 ◽  
Vol 6 (7) ◽  
pp. 2221-2226 ◽  
Author(s):  
Xiao-Yan Li ◽  
Zi Yi ◽  
Hao Tang ◽  
Xia Chu ◽  
Ru-Qin Yu
Keyword(s):  
Gold Nanoparticles ◽  
Signal Amplification ◽  
Electrochemical Immunosensor ◽  
Highly Sensitive ◽  
Dual Signal Amplification

Highly sensitive electrochemical immune analysis was achieved based on dual signal amplification of AuNPs and telomerase extension reaction.

Signal amplification of electrochemical immunosensor for the detection of human serum IgG using double-codified nanosilica particles as labels

2009 ◽  
Vol 24 (7) ◽  
pp. 2246-2249 ◽  
Author(s):  
Zhaoyang Zhong ◽  
Mengxia Li ◽  
Debing Xiang ◽  
Nan Dai ◽  
Ying Qing ◽  
...  
Keyword(s):  
Human Serum ◽  
Signal Amplification ◽  
Electrochemical Immunosensor ◽  
Serum Igg ◽  
Nanosilica Particles
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