Results 71 to 80 of about 13,220 (227)

Nitrogen-doped Graphene Modified Glassy Carbon Electrode for Electrochemical Determination of Breast Cancer Marker Carbohydrate Antigen 15-3

International Journal of Electrochemical Science, 2017
In this study, an electrochemical immunosensor based on nitrogen-doped graphene sheets (N-GS) for label-free and sensitive determination of CA15-3 was prepared.
Liqiong Liu, Jinglei Gao, Lanqing Guo, Jun Xu   +3 more
doaj   +1 more source

Label-free Detection of Influenza Viruses using a Reduced Graphene Oxide-based Electrochemical Immunosensor Integrated with a Microfluidic Platform [PDF]

, 2017
Reduced graphene oxide (RGO) has recently gained considerable attention for use in electrochemical biosensing applications due to its outstanding conducting properties and large surface area. This report presents a novel microfluidic chip integrated with
A Kausaite-Minkstimiene, AG Crevillén, BS Ferguson, C Shan, D Du, D Lee, D Li, DS Reichmuth, F Schedin, F Shen, F Xia, G Liu, HA Becerril, I Janowska, J Kim, J Okuno, JC Meyer, JI Paredes, JS Bunch, K Kiilerich-Pedersen, KL Brogan, L Gervais, L Tang, LT Kao, M Jana, M Lin, M Pumera, M Zhou, MA Ali, N Mohanty, P Sharma, RB Couch, RK Srivastava, S Hong, S Srivastava, T Matsubara, T Ramanathan, TG Henares, V Chandra, WS Hummers, X Zhang, X Zhang, Y Amano, Y Zhu, YK Choi   +44 more
core   +2 more sources

Electrochemical Charge Transfer Effects of Detonation Nanodiamonds in Cortisol Immunosensor on Metal Electrodes

physica status solidi (a), Volume 223, Issue 6, 20 March 2026.
Improved detection of cortisol can prevent onset of diseases. Detonation nanodiamonds are deposited in various amount on gold and platinum working electrodes of screen‐printed electrode sensor and biofunctionalized to analyze effects on cortisol immunosensing.
Daniel Vítek, Chakavak Esmaeili, Markéta Šlapal Bařinková, Bohuslav Rezek   +3 more
wiley   +1 more source

Additive manufacturing of carbon black immunosensors based on covalent immobilization for portable electrochemical detection of SARS-CoV-2 spike S1 protein

Talanta Open, 2023
The global pandemic of the COVID-19 disease has emphasized the need to develop clinical tests which are simple, fast and inexpensive. In this aspect, electrochemical biosensors are alternatives capable to attend such requirements and providing reliable ...
Luiz Ricardo Guterres Silva, Jéssica Santos Stefano, Robert D. Crapnell, Craig E. Banks, Bruno Campos Janegitz   +4 more
doaj   +1 more source

Printed 2.5D‐Microstructures with Material‐Specific Functionalization for Tunable Biosensing

Advanced Materials Technologies, Volume 11, Issue 5, 6 March 2026.
The 2.5D‐MiSENSE platform integrates a microstructured biosensor with an in‐line milking pipeline to enable real‐time detection of mastitis biomarkers during active milk flow. The system uses a 2.5D microengineered surface and patterned electrodes to enhance milk–sensor interaction.
Matin Ataei Kachouei, Benjamin Corl, Md. Azahar Ali   +2 more
wiley   +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

Fabrication of a label-free electrochemical immunosensor using a redox active ferrocenyl dendrimer [PDF]

, 2016
We report an IgG (=immunoglobulin) electrochemical immunosensor using a newly synthesized redox-active ferrocenyl dendrimer of generation 2 (G2Fc) as a voltammetric transducer.
Bahadur, Dhirendra, Chandra, Sudeshna, Gäbler, Christian, Lang, Heinrich, Schliebe, Christian   +4 more
core   +2 more sources

Nanomaterial labels in electrochemical immunosensors and immunoassays [PDF]

Talanta, 2007
This article reviews recent advances in nanomaterial labels in electrochemical immunosensors and immunoassays. Various nanomaterial labels are discussed, including colloidal gold/silver, semiconductor nanoparticles, and markers loaded nanocarriers (carbon nanotubes, apoferritin, silica nanoparticles, and liposome beads). The enormous signal enhancement
Liu, Guodong, Lin, Yuehe
openaire   +3 more sources

Label‐Free Detection of PSA Using Laser‐Induced Graphene/ZnO Nanorod‐Based Impedimetric Immunosensors

Advanced Sensor Research, Volume 5, Issue 3, March 2026.
A label‐free impedimetric immunosensor based on laser‐induced graphene decorated with ZnO nanorods is developed for prostate‐specific antigen detection. Antibody adsorption on ZnO enables clinically relevant sensitivity and an unconventional “signaling‐off” response, where charge‐transfer resistance decreases upon antigen binding, challenging ...
Maria S. Soares, Sónia O. Pereira, António J. S. Fernandes, Florinda M. Costa, Nuno F. Santos   +4 more
wiley   +1 more source

Label-free electrochemical immunosensor as a reliable point-of-care device for the detection of Interleukin-6 in serum samples from patients with psoriasis

Frontiers in Chemistry, 2023
Interleukin-6 (IL-6) plays a crucial role in autoimmunity and chronic inflammation. This study aims to develop a low-cost, simple-to-manufacture, and user-friendly label-free electrochemical point-of-care device for the rapid detection of IL-6 in ...
Rocco Cancelliere, Terenzio Cosio, Terenzio Cosio, Elena Campione, Martina Corvino, Maria Pia D’Amico, Laura Micheli, Emanuela Signori, Giorgio Contini, Giorgio Contini   +9 more
doaj   +1 more source