Results 71 to 80 of about 20,776 (229)

Real‐Life Application of a Point‐of‐Care Biosensor for Phenylalanine in Patients With Phenylketonuria

open access: yesJournal of Inherited Metabolic Disease, Volume 49, Issue 3, May 2026.
ABSTRACT Phenylketonuria (PKU) is a rare metabolic disorder causing elevated phenylalanine (PHE) levels requiring lifelong dietary or pharmacological management and regular monitoring. Current PHE monitoring methods, such as tandem mass spectrometry (FIA‐MS/MS), are laboratory and sample transport‐dependent, leading to delays in obtaining results. This
Corentin Gondrand   +14 more
wiley   +1 more source

Surface Plasmon Resonance kinetic analysis of the interaction between G-quadruplex nucleic acids and an anti-G-quadruplex monoclonal antibody [PDF]

open access: yes, 2018
Background G-quadruplexes (G4s) are nucleic acids secondary structures formed in guanine-rich sequences. Anti-G4 antibodies represent a tool for the direct investigation of G4s in cells.
Lago, Sara   +3 more
core   +1 more source

Ferrocene‐Based Sensors for Green Analytical Applications in Environmental, Biomedical, Industrial, and Food Monitoring

open access: yesChemistryOpen, Volume 15, Issue 5, May 2026.
Ferrocene derivatives represent a transformative class of molecular sensors, combining exceptional electrochemical stability with tunable redox characteristics that enable precise detection across diverse analytical challenges in environmental, medical, and industrial applications.
Ala'a Al‐Akhras   +6 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

Monitoring Biogenic Amines: Comparative Assessment of Detection Methods for Key Market Marine and Freshwater Species

open access: yesJournal of Food Science, Volume 91, Issue 5, May 2026.
ABSTRACT Biogenic amines, primarily histamine, cadaverine, and putrescine, are important indicators of microbial spoilage and potential health risks. This review summarizes established and novel analytical methods for quantitatively determining biogenic amines in fish and fish products, along with their limits of detection in these complex matrices ...
Lasse Petersen
wiley   +1 more source

The critical sensor: a new type of evanescent wave immunosensor [PDF]

open access: yes, 1996
A new planar waveguide immunosensor has been developed in which adsorption at a surface, changing the refractive index contrast, is measured. In this ¿critical¿ sensor the change in the effective refractive index contrast is transducted to a shift of the
Borreman, A.   +3 more
core   +3 more sources

Simultaneous Multi‐Analyte Detection of Viruses in Livestock Using a Multi‐Channel Magnetoelastic Sensor

open access: yesAdvanced Sensor Research, Volume 5, Issue 4, April 2026.
This study presents a portable, smartphone‐linked multi‐channel magnetoelastic sensor for the simultaneous detection of three airborne livestock viruses (H1N1, CSFV, FMDV). The multi‐channel sensor demonstrates linear, virus‐specific frequency shifts over its detection range, and the accuracy of this device is comparable with that of vector network ...
Yunxuan Zhang   +9 more
wiley   +1 more source

A Label-Free Electrochemical Immunosensor for Carbofuran Detection Based on a Sol-Gel Entrapped Antibody

open access: yesSensors, 2011
In this study, an anti-carbofuran monoclonal antibody (Ab) was immobilized on the surface of a glassy carbon electrode (GCE) using silica sol-gel (SiSG) technology.
Qingqing Li   +4 more
doaj   +1 more source

Peroxidase‐Mimicking Nanozymes for Rapid Detection of Infectious Diseases

open access: yesAdvanced Science, Volume 13, Issue 20, 9 April 2026.
Peroxidase‐mimicking nanozymes (PMNs) have emerged as robust and versatile materials for rapid infectious disease diagnostics. This review highlights the rational design and controlled synthesis of PMNs, summarizes key biomarkers relevant to infectious diseases, examines their integration into diverse rapid detection platforms, and highlights ...
Shikuan Shao   +5 more
wiley   +1 more source

Kinetic Characterisation of a Single Chain Antibody against the Hormone Abscisic Acid: Comparison with Its Parental Monoclonal [PDF]

open access: yes, 2016
A single-chain Fv fragment antibody (scFv) specific for the plant hormone abscisic acid (ABA) has been expressed in the bacterium Escherichia coli as a fusion protein.
A Hayhurst   +38 more
core   +5 more sources

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