Results 61 to 70 of about 20,594 (209)

Recent advances of non‐invasive sensors for smart wearable respiratory monitoring

open access: yesVIEW, EarlyView.
Respiration contains rich physiological and pathological information, making it one of the most fundamental and continuous vital signs. Respiration monitoring is a non‐invasive and simple, but incredibly powerful, tool for assessing health, managing disease, and tracking fitness.
Jianhui Chen   +8 more
wiley   +1 more source

Detecting of Benzo[a]pyrene Using a Label-free Amperometric Immunosensor

open access: yesInternational Journal of Electrochemical Science, 2014
A label-free amperometric immunosensor was manufactured for the fast and sensitive detection of Benzo[a]pyrene. Prussian blue was firstly electrodeposited onto a glass carbon electrode as an electron mediator. Afterwards nano-gold layer was formed on the
Yanhua Zhang   +4 more
doaj   +1 more source

Embedded disposable functionalized electrochemical biosensor with a 3D-printed flow cell for detection of hepatic oval cells (HOCs) [PDF]

open access: yes, 2018
Hepatic oval cells (HOCs) are considered the progeny of the intrahepatic stem cells that are found in a small population in the liver after hepatocyte proliferation is inhibited.
Baghdadi, Mohammed A.   +7 more
core   +3 more sources

Recent Advances in Hafnium Oxide Nanomaterials: From Controlled Synthesis, Structure, and Surface Engineering to Biomedical Applications

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Hafnium oxide (HfO2) nanoparticles (NPs), derived from a rare‐metal element, have gained increasing attention as a versatile class of functional nanostructures with unique optical, dielectric, and surface properties that enable diverse biomedical applications. As a representative rare‐metal oxide, HfO2 NPs with well‐defined architectures offer
Mothana Hussein Tarawneh   +8 more
wiley   +1 more source

A Nanostructured Piezoelectric Immunosensor for Detection of Human Cardiac Troponin T

open access: yesSensors, 2011
A piezoelectric immunosensor based on gold nanoparticles (AuNPs) co-immobilized on a dithiol-modified surface is proposed for detection of human cardiac troponin T (TnT).
Rosana A. S. Fonseca   +3 more
doaj   +1 more source

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

open access: yesBiosensors, 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   +3 more
doaj   +1 more source

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

open access: yes, 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   +4 more
core   +2 more sources

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

open access: yesphysica 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   +3 more
wiley   +1 more source

Determination of aflatoxin M1 in milk samples by an OWLS-based immunosensor [PDF]

open access: yes, 2014
An immunoreaction-based method was investigated for the detection of aflatoxin M1 (AFM1), which is the hydroxylated metabolite of aflatoxin B1 (AFB1).
Adányi, N., Kiss, A., Szalontai, H.
core   +1 more source

Multiplexed Immunosensors and Immunoarrays [PDF]

open access: yesAnalytical Chemistry, 2019
Immunoassays make use of highly specific antigen-antibody binding and provide sensitive ways to detect a wide range of biomacromolecules, bacteria, viruses, and small molecules. There are a range of types of immunoassay systems including single analyte sensors, 96-well plate formats, arrays, microfluidic sensors, microfluidic arrays, etc.
Abby Jones   +4 more
openaire   +2 more sources

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