Results 1 to 10 of about 13,307 (227)

Label-Free Detection of CA19-9 Using a BSA/Graphene-Based Antifouling Electrochemical Immunosensor [PDF]

open access: yesSensors, 2023
Evaluating the levels of the biomarker carbohydrate antigen 19-9 (CA19-9) is crucial in early cancer diagnosis and prognosis assessment. In this study, an antifouling electrochemical immunosensor was developed for the label-free detection of CA19-9, in ...
Wei Chen   +7 more
doaj   +2 more sources

Electrochemical immunosensor based on gold-thionine for detection of subarachnoid hemorrhage biomarker [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Introduction: In clinical work, the realization of an early diagnosis of Subarachnoid hemorrhage (SAH) is primarily based on conventional computed tomography (CT), MR angiography, transcranial Doppler (TCD) ultrasound, and neurological assessments ...
Mengyue Wang   +7 more
doaj   +2 more sources

A monoclonal antibody-based electrochemical immunosensor for porcine epidemic diarrhea virus [PDF]

open access: yesApplied Microbiology and Biotechnology
This study reports the development of a novel and highly sensitive electrochemical immunosensor for detecting porcine epidemic diarrhea virus (PEDV). To this end, a unique PEDV spike protein–specific monoclonal antibody (mAb) was generated and evaluated ...
Wenjie Li   +5 more
doaj   +2 more sources

Recent Progress in Electrochemical Immunosensors [PDF]

open access: yesBiosensors, 2021
Biosensors used for medical diagnosis work by analyzing physiological fluids. Antibodies have been frequently used as molecular recognition molecules for the specific binding of target analytes from complex biological solutions. Electrochemistry has been introduced for the measurement of quantitative signals from transducer-bound analytes for many ...
JeeYoung Kim, Min Park
openaire   +3 more sources

Electrochemical Immunosensors and Aptasensors [PDF]

open access: yesChemosensors, 2017
The possibility to integrate biorecognition elements into electrochemical detection systems has opened the way to a new class of powerful analytical devices named electrochemical (EC) biosensors. The first EC biosensors employed enzymes as recognition elements; however this limited their application to redox enzymes and natural or artificial redox ...
Paolo Ugo (Ed.), Ligia Moretto (Ed.)
  +5 more sources

Construction of a Label-Free Electrochemical Immunosensor Based on Zn-Co-S/Graphene Nanocomposites for Carbohydrate Antigen 19-9 Detection

open access: yesNanomaterials, 2021
Nanocomposites of the binary transition metal sulfide Zn-Co-S/graphene (Zn-Co-S@G) were synthesized through a one-step hydrothermal method. They may be useful in the construction of an electrochemical immunosensor for carbohydrate antigen 19-9 (CA19-9 ...
Chia-Wei Su   +4 more
doaj   +1 more source

An ultrasensitive electrochemical immunosensor for CA72-4 based on a signal amplification strategy of MoS2 nanoflower-supported Au nanoparticles

open access: yesJournal of Saudi Chemical Society, 2023
Accurate detection of cancer antigen 72-4 (CA72-4), a tumor-associated glycoprotein, is of great significance for gastric cancer diagnosis and immunotherapy monitoring.
Qinghua Yan   +3 more
doaj   +1 more source

Label-free electrochemical immunosensor for highly sensitive COVID-19 spike protein detection

open access: yesSensors and Actuators Reports, 2022
The ongoing coronavirus pandemic responsible for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has rapidly increased the rate of global death and infections due to variant mutations (such as Delta and Omicron). While specifically developed
Qingfeng Zhai   +5 more
doaj   +1 more source

Bioengineered Monoclonal Antibody Chitosan–Iron Oxide Bio-Composite for Electrochemical Sensing of Mycobacterium tuberculosis Lipoprotein

open access: yesEngineering Proceedings, 2023
In this study, an electrochemical immunosensor for the detection of the 19 kDa Mycobacterium tuberculosis lipoprotein LpqH was developed using a monoclonal antibody immobilized on a chitosan-coated iron oxide bio-composite.
Resmond L. Reaño   +3 more
doaj   +1 more source

Nanomaterials-Based Electrochemical Immunosensors [PDF]

open access: yesMicromachines, 2019
With the development of nanomaterials and sensor technology, nanomaterials-based electrochemical immunosensors have been widely employed in various fields. Nanomaterials for electrode modification are emerging one after another in order to improve the performance of electrochemical immunosensors.
Zhenguo Zhang   +3 more
openaire   +3 more sources

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