Results 51 to 60 of about 13,307 (227)

Electrochemical sensing method for point-of-care cortisol detection in human immunodeficiency virus-infected patients [PDF]

, 2015
A novel electrochemical sensing method was devised for the first time to detect plasma cortisol, a potential psychological stress biomarker, in human immunodeficiency virus (HIV)-positive subjects. A miniaturized potentiostat (reconfigured LMP91000 chip)
Atluri, Venkata, Bhansali, Shekhar, Jayant, Rahul Dev, Kaushik, Ajeet, Nair, Madhavan, Sagar, Vidya, Yndart, Adriana   +6 more
core   +2 more sources

Antibody-Electroactive Probe Conjugates Based Electrochemical Immunosensors [PDF]

Sensors, 2020
Suitable immobilization of a biorecognition element, such as an antigen or antibody, on a transducer surface is essential for development of sensitive and analytically reliable immunosensors. In this review, we report on (1) methods of antibody prefunctionalization using electroactive probes, (2) methods for immobilization of such conjugates on the ...
Mateusz Kondzior, Iwona Grabowska
openaire   +3 more sources

Enzyme-Mediated Growing Au Nanoparticles for Electrochemical and Optical Immunosensors: Signal-on and Signal-off

International Journal of Electrochemical Science, 2012
We report a versatile strategy for electrochemical and optical signal-on/off immunosensing, on the basis of enzyme-mediated growing Au nanoparticles. By applying antibody and enzyme (glucose oxidase or catalase) conjungated Au nanoparticles as secondary ...
Hongcheng Pan, Dunnan Li, Jianping Li, Wenyuan Zhu, Liang Fang   +4 more
doaj   +1 more source

A critical evaluation of direct electrical protein detection methods [PDF]

, 1991
During the last decennia many protein-related electrical phenomena have been studied and applied in a variety of measuring systems, from simple metal electrodes with adsorbed proteins to sophisticated systems with lipid bilayers.
Bergveld, P.
core   +2 more sources

Exploring the Potential of Zero‐Dimensional Carbon Nanomaterials in Photoluminescent, Electrochemiluminescent and Electrochemical Sensors

Advanced Materials Interfaces, EarlyView.
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins, Jeferson Luiz Gogola, Ava Gevaerd, Cristiane Kalinke, Paulo Roberto de Oliveira, Fabio Roberto Caetano, Bruno Campos Janegitz, Márcio Fernando Bergamini, Luiz Humberto Marcolino‐Junior   +8 more
wiley   +1 more source

Unlocking the Potential of MXene‐Based Electrochemical Biosensors: A Review of Biofunctionalization Strategies and Biosensing Principles

Advanced Materials Technologies, EarlyView.
ABSTRACT Electrochemical biosensors enable the accurate and timely detection of clinical biomarkers, improving healthcare and precision medicine. MXene nanosheets, a class of 2D transition metal carbides, nitrides, and carbonitrides, are promising materials for developing next‐generation electrochemical biosensors due to their unique physicochemical ...
Muhsin Ali, Sharat Chandra Barman, Isobel Steer, Aya H. Alshareef, Dana Alsulaiman   +4 more
wiley   +1 more source

Disposable electrochemical immunosensor for prostate cancer detection

Sensors and Actuators B: Chemical, 2022
Prostate cancer (PCa) is the second most common cancer amongst men worldwide; hence its early and accurate diagnosis is crucial. Due to the lacking current diagnostic approaches, an urgent need arises for an alternating analytical platform targeting selective PCa biomarkers while testing in body fluids, such as urine and serum. With this motivation, we
Kabay, Gozde, Yin, Y., Singh, C. K., Ahmad, N., Gunasekaran, S., Mutlu, M.   +5 more
openaire   +4 more sources

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

A Novel Tetrahydrocannabinol Electrochemical Nano Immunosensor Based on Horseradish Peroxidase and Double-Layer Gold Nanoparticles

Molecules, 2016
In the current study, a novel double-layer gold nanoparticles-electrochemical immunosensor electrode immobilized with tetrahydrocannabinol (THC) antibody derived from Balb/c mice was developed.
Dingqiang Lu, Fuping Lu, Guangchang Pang
doaj   +1 more source

Graphene Quantum Dots as Nanozymes for Electrochemical Sensing of Yersinia enterocolitica in Milk and Human Serum [PDF]

, 2019
The genus Yersinia contains three well-recognized human pathogens, including Y. enterocolitica, Y. pestis, and Y. pseudotuberculosis. Various domesticated and wild animals carry Yersinia in their intestines.
Altintas, Zeynep, Savas, Sumeyra
core   +1 more source