Results 31 to 40 of about 2,902,308 (333)

Magnetic Lateral Flow Immunoassays

open access: yesDiagnostics, 2020
A new generation of magnetic lateral flow immunoassays is emerging as powerful tool for diagnostics. They rely on the use of magnetic nanoparticles (MNP) as detecting label, replacing conventional gold or latex beads. MNPs can be sensed and quantified by
Amanda Moyano   +5 more
doaj   +1 more source

Multichannel digital heteronuclear magnetic resonance biosensor [PDF]

open access: yesBiosensors and Bioelectronics, 2019
Low-field, mobile NMR systems are increasingly used across diverse fields, including medical diagnostics, food quality control, and forensics. The throughput and functionality of these systems, however, are limited due to their conventional single-channel detection: one NMR probe exclusively uses an NMR console at any given time.
Stephan, Huber   +8 more
openaire   +2 more sources

Early detection of cancer: Focus on antibody coated metal and magnetic nanoparticle-based biosensors

open access: yesSensors International, 2020
Cancer is a highly fatal disease, and due to contemporary lifestyle and growing, environmental pollution chances of cancer are increasing, which is a global threat.
G. Ghosh
semanticscholar   +1 more source

Magnetoimpedance in Symmetric and Non-Symmetric Nanostructured Multilayers: A Theoretical Study

open access: yesSensors, 2019
Intensive studies of the magnetoimpedance (MI) effect in nanostructured multilayers provide a good phenomenological basis and theoretical description for the symmetric case when top and bottom layers of ferromagnet/conductor/ferromagnet structure have ...
Nikita A. Buznikov   +1 more
doaj   +1 more source

Ultrasensitive magnetic biosensor for homogeneous immunoassay [PDF]

open access: yesProceedings of the National Academy of Sciences, 2000
A technique is described for specific, sensitive, quantitative, and rapid detection of biological targets by using superparamagnetic nanoparticles and a “microscope” based on a high-transition temperature dc superconducting quantum interference device (SQUID).
Y R, Chemla   +6 more
openaire   +2 more sources

Mechanical, Electrical and Magnetic Properties of Ferrogels with Embedded Iron Oxide Nanoparticles Obtained by Laser Target Evaporation: Focus on Multifunctional Biosensor Applications

open access: yesSensors, 2018
Hydrogels are biomimetic materials widely used in the area of biomedical engineering and biosensing. Ferrogels (FG) are magnetic composites capable of functioning as magnetic field sensitive transformers and field assisted drug deliverers.
Felix A. Blyakhman   +9 more
doaj   +1 more source

On-chip Magnetoresistive Sensors for Detection and Localization of Paramagnetic Particles [PDF]

open access: yes, 2017
This paper presents the work towards miniaturized magnetic biosensor array based on the detection of paramagnetic particles using the giant magnetoresistance (GMR) effect.
Heidari, Hadi, Shah, Samyak
core   +1 more source

Water-Based Suspensions of Iron Oxide Nanoparticles with Electrostatic or Steric Stabilization by Chitosan: Fabrication, Characterization and Biocompatibility

open access: yesSensors, 2017
Present day biomedical applications, including magnetic biosensing, demand better understanding of the interactions between living systems and magnetic nanoparticles (MNPs).
Galina V. Kurlyandskaya   +12 more
doaj   +1 more source

Detection of Alpha-Fetoprotein Using Aptamer-Based Sensors

open access: yesBiosensors, 2022
Alpha-fetoprotein (AFP) is widely-known as the most commonly used protein biomarker for liver cancer diagnosis at the early stage. Therefore, developing the highly sensitive and reliable method of AFP detection is of essential demand for practical ...
Lei Liu   +5 more
doaj   +1 more source

A biosensor based on magnetic resonance relaxation [PDF]

open access: yesSPIE Proceedings, 2013
This work describes a biosensor based on magnetic resonance relaxation switching. The method leverages a large body of work involving nanoscale contrast agents employed in nuclear magnetic resonance (NMR) imaging. The aim was to develop a detection approach that mimics the human immune response to an invading pathogen, the release of 109 to 1012 ...
Marianne Sullivan, Bart Prorok
openaire   +1 more source

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