Results 31 to 40 of about 12,615 (201)

Ultrasensitive Immunosensor for Aflatoxin B1 Detection Based on Screen-Printed Carbon Electrode Modified by Ferrocene @Multi-Walled Carbon Nanotubes

International Journal of Electrochemical Science, 2019
An electrochemical immunosensor for the ultrasensitive detection of aflatoxin B1 (AFB1) in agricultural products was developed. Ferrocene (Fc), with favourable oxidation-reduction properties, is widely used in chemically modified electrodes. Multi-walled
Hui Zhang, Zhaoqiang Shi, Shuting Cheng, Qingqing Yang, Xia Sun, Yemin Guo   +5 more
doaj   +1 more source

Preparation of Immunosensor Based on the SiO2- Au composite for Lung Cancer-Associated Antigen Determination

International Journal of Electrochemical Science, 2016
A sensitive immunosensor with gold nanoprobe for the detection of carcinoembryonic antigen (CEA) was synthesized. The immunosensor was prepared by the covalent immobilization of antibodies on Au NPs-PDA-silica/GCE which was firstly prepared by in situ ...
Xiao Li, Xiaoju Zhang, Zheng Wang, Qianqian Zhang, Weixia Xuan, Lijun Ma   +5 more
doaj   +1 more source

Electroactive 3D Porous Graphene Foam Impedimetric Biosensor for Ultrasensitive Detection of MCF‐7‐Cells‐Derived Extracellular Vesicles in Human Serum

Advanced Materials Technologies, EarlyView.
A label‐free impedimetric biosensor based on electroactive 3D porous graphene foam enables ultrasensitive and selective detection of CD81 protein and MCF‐7 cell‐derived extracellular vesicles in human serum. Detection limits of 0.048 fg/mL for CD81 and ∼24 EVs/mL are achieved, demonstrating a robust platform for selective, label‐free, and ...
Michael Robert Furness, Ashish Kalkal, Tia Wardlaw, Jessica Valli, Suresh Chandra Baral, Pablo Lozano Sanchez, Marco Caffio, Sudhagar Pitchaimuthu, Olga Oikonomidou, Jason Webber, Nick R. Leslie, Anitha Devadoss   +11 more
wiley   +1 more source

Towards detection of atrazine and 2,4,6-TCP in wine and other matrices

, 2007
GOODFOOD aimed to develop new generation micro- and nanoscale devices for safety and quality assurance in the food chain and agrofood industry.
Dumont, Christopher
core   +7 more sources

Detecting age-related changes in faecal vasoactive intestinal polypeptide using a 3D-printed electrochemical immunosensor

Biosensors and Bioelectronics: X
Vasoactive intestinal polypeptide (VIP) is a 28-amino acid neuropeptide with a multitude of diverse physiological functions, including vasodilation, immune modulation, and most notable gastrointestinal regulation.
Khalil K. Hussain, Chloe Miller, Mark Yeoman, Bhavik Anil Patel   +3 more
doaj   +1 more source

A Label-Free Immunosensor Based on Graphene Oxide/Fe₃O₄/Prussian Blue Nanocomposites for the Electrochemical Determination of HBsAg

Biosensors, 2020
In this article, a highly sensitive label-free immunosensor based on a graphene oxide (GO)/Fe3O4/Prussian blue (PB) nanocomposite modified electrode was developed for the determination of human hepatitis B surface antigen (HBsAg). In this electrochemical
Shanshan Wei, Haolin Xiao, Liangli Cao, Zhencheng Chen   +3 more
doaj   +1 more source

Multidimensional and Multifunctional Laser‐Induced Graphene (LIG) for Point‐of‐Care and Wearable Biosensing, Theranostics, and Bioactive Interfaces Toward Personalized Healthcare and Regenerative Medicine

Advanced Science, EarlyView.
Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang, Yurou Yuan, Xiaohong Ding, Wing Cheung Mak   +3 more
wiley   +1 more source

Nanomaterials for Allergy Diagnosis and Treatment: Advances, Opportunities and Translational Challenges

Advanced Science, EarlyView.
Nanomaterials offer dual applications in allergy management. For diagnosis, nanomaterials enhance analytical sensitivity and improve detection in specific IgE and functional assays such as the basophil activation test (BAT). For allergen‐specific immunotherapy, nanomaterials enable allergen masking and controlled release, and effectively modulate the ...
Madiha Habib, Shan Jiang, Joyce ZX Lee, CW Lim, HL Yeung, Nicki YH Leung, Patrick SC Leung, Ting F Leung, Christine YY Wai   +8 more
wiley   +1 more source

The preparation of an immunosensor for the detection of microcystins and nodularins by immobilisation of a labelled antibody onto a polymer modified electrode [PDF]

, 2011
Masters of ScienceSouth African dams and reservoirs are increasingly showing the propensity to support sustained populations of Cyanobacteria (blue green algae).
Siebritz, Robert Matthew
core   +1 more source

Label-Free Amperometric Immunosensor Based on Versatile Carbon Nanofibers Network Coupled with Au Nanoparticles for Aflatoxin B₁ Detection

Biosensors, 2020
Facile detection methods for mycotoxins with high sensitivity are of great significance to prevent potential harm to humans. Herein, a label-free amperometric immunosensor based on a 3-D interconnected carbon nanofibers (CNFs) network coupled with well ...
Yunhong Huang, Fei Zhu, Jinhua Guan, Wei Wei, Long Zou   +4 more
doaj   +1 more source