Results 61 to 70 of about 6,397 (186)

Automated-immunosensor with centrifugal fluid valves for salivary cortisol measurement

Sensing and Bio-Sensing Research, 2014
Point-of-care measurement of the stress hormone cortisol will greatly facilitate the timely diagnosis and management of stress-related disorders. We describe an automated salivary cortisol immunosensor, incorporating centrifugal fluid valves and a ...
Masaki Yamaguchi, Hiroki Katagata, Yuki Tezuka, Daisuke Niwa, Vivek Shetty   +4 more
doaj   +1 more source

Impedimetric immunosensors—A review

Electrochimica Acta, 2010
This review outlines the theoretical background of impedimetric biosensors and presents different types of impedimetric immunosensors along with the instrumental approaches that have been so far proposed in the literature for the evaluation of their performance.
openaire   +2 more sources

Development of Electrochemical Sensor for Coronary Heart Disease Biomarker MMP-9 Analysis

International Journal of Electrochemical Science, 2017
This work explored the preparation of a sensitive amperometric immunosensor for MMP-9. The in situ deposition of Au nanoparticles (Au NPs) on the polydopamine functionalized silica nanosphere and subsequent signal antibodies tagging were carried out for ...
Shenghong Jing, Bo Yu, Hong Qiao, Yinghong Huang, Xiuyu Liao   +4 more
doaj   +1 more source

High Sensitive Sandwich-type Electrochemical IgG Immunosensor Based on a Nanocomposite of Carbon Nanotube and Multifunctional Ionic Liquid Containing Aldehyde and Ferrocene Groups as Labels

International Journal of Electrochemical Science, 2018
Using a nanocomposite of carbon nanotube and multifunctional ionic liquid as labels and chitosan as platform, we fabricated a sandwich-type electrochemical immunosensor.
Youming Shen, Guangyu Shen, Youyu Zhang
doaj   +1 more source

Ultra-sensitive immunosensing of snake venom by functionalized Sm-Co doped antimony-tungstate

Applied Microbiology and Biotechnology
Snake venom has long-term physiological effects on survivor’s life. An electrochemical immunosensor based on samarium-cobalt-doped antimony tungstate (Sb2WO4@Sm-Co) is developed via a solvothermal method to detect snake venom antigens (SVA).
Rimsha Batool, Sana Shaheen, Batool Fatima, Dilshad Hussain, Ukasha Jawad, Ayub Alam, Muhammad Najam-ul-Haq   +6 more
doaj   +1 more source

Potential Electrochemical Coronary Artery Disease Diagnosis Based on A Periostin Immunoassay

International Journal of Electrochemical Science, 2017
The preparation of a sensitive amperometric immunosensor for periostin was achieved. The synthesis of golg nanoprobe was carried out through depositing the gold nanoparticles in situ on silica nanophere functionalized by polydopamine, which was followed ...
Xiu-Feng Zheng, Yuan-Yuan Wang, Lei Han, Xi-Chun Wang, Shi-Lei Zhao, Hui Zou   +5 more
doaj   +1 more source

Advancing CEA quantification: Designing a sensitive electrochemical immunosenor using MWCNT/Ni(OH)2 nanocomposite

Heliyon
An ultra-sensitive immunosensor was designed for the accurate determination of Carcinoembryonic Antigen (CEA). To enhance the performance of immunosensor, an MWCNT/Ni(OH)2 nanocomposite was utilized as the electrochemical interface and modifier of the ...
Ali Shamsazar, Mahsa Soheili Moghaddam, Asadollah Asadi, Majid Mahdavi   +3 more
doaj   +1 more source

A Novel Label-Free Electrochemical Immunosensor for the Detection of Thyroid Transcription Factor 1 Using Ribbon-like Tungsten Disulfide-Reduced Graphene Oxide Nanohybrids and Gold Nanoparticles

Molecules
Thyroid transcription factor 1 (TTF1) is an important cancer-related biomarker for clinical diagnosis, especially for carcinomas of lung and thyroid origin.
Wenjing Wang, Huabiao Tang, Leiji Zhou, Zhaohui Li   +3 more
doaj   +1 more source

Electrochemical Detecting Lung Cancer-Associated Antigen Based on Graphene-Gold Nanocomposite

Molecules, 2017
Using a Au nanoparticle/reduced graphene oxide composite (AuNP-RGO), a signal-enhanced electrochemical immunosensor without label was created to detect neuron-specific enolase (NSE).
Zheng Wei, Junping Zhang, Aihua Zhang, Yanchun Wang, Xiaoping Cai   +4 more
doaj   +1 more source

Ferrocene and multiwalled carbon nanotubes functionalized carbon paste electrode: a label-free impedimetric immunosensor for the early detection of prostate cancer

Cancer Nanotechnology
The increasing demand to progress in the field of bio-sensor technology for the development of a specific bio-sensor in different fields of research for routine analysis has attracted a number of scientists for their interest in the field of biosensor ...
Lakkavarapu Suresh, Nidhi Panday, Bondili Sesharam Singh, Riyaz Ahmad Dar, Pradeep Kumar Brahman   +4 more
doaj   +1 more source