Magnetic field-assisted DNA hybridisation and simultaneous detection using micron-sized spin-valve sensors and magnetic nanoparticles

DL Graham, HA Ferreira, N Feliciano, PP Freitas… - Sensors and Actuators B …, 2005 - Elsevier
Specifically designed on-chip microfabricated current-carrying metallic lines were used to
generate local magnetic field gradients to facilitate the rapid focusing and hybridisation of …

Femtomolar limit of detection with a magnetoresistive biochip

VC Martins, FA Cardoso, J Germano, S Cardoso… - Biosensors and …, 2009 - Elsevier
In this paper the biological limit of detection of a spin-valve-based magnetoresistive biochip
applied to the detection of 20mer ssDNA hybridization events is presented. Two reactional …

Magnetoresistive DNA chips based on ac field focusing of magnetic labels

HA Ferreira, FA Cardoso, R Ferreira… - Journal of Applied …, 2006 - pubs.aip.org
A study was made on the sensitivity of a magnetoresistive DNA-chip platform being
developed for cystic fibrosis diagnostics. The chip, comprised of an array of 2.5× 80 μ m 2 U …

Giant magnetoresistive biochip for DNA detection and HPV genotyping

L Xu, H Yu, MS Akhras, SJ Han, S Osterfeld… - Biosensors and …, 2008 - Elsevier
A giant magnetoresistive (GMR) biochip based on spin valve sensor array and magnetic
nanoparticle labels was developed for inexpensive, sensitive and reliable DNA detection …

Magnetic nanoparticles as a tool for remote DNA manipulations at a single-molecule level

AA Nikitin, AY Yurenya, TS Zatsepin… - … applied materials & …, 2021 - ACS Publications
Remote control of cells and single molecules by magnetic nanoparticles in nonheating
external magnetic fields is a perspective approach for many applications such as cancer …

An integrated microfluidic cell for detection, manipulation, and sorting of single micron-sized magnetic beads

Z Jiang, J Llandro, T Mitrelias, JAC Bland - Journal of applied physics, 2006 - pubs.aip.org
A lab-on-a-chip integrated microfluidic cell has been developed for magnetic biosensing,
which is comprised of anisotropic magnetoresistance (AMR) sensors optimized for the …

Detection of single micron-sized magnetic bead and magnetic nanoparticles using spin valve sensors for biological applications

G Li, V Joshi, RL White, SX Wang, JT Kemp… - Journal of applied …, 2003 - pubs.aip.org
We have fabricated a series of highly sensitive spin valve sensors on a micron scale that
successfully detected the presence of a single superparamagnetic bead (Dynabeads M-280 …

On-chip magnetic bead manipulation and detection using a magnetoresistive sensor-based micro-chip: Design considerations and experimental characterization

CP Gooneratne, R Kodzius, F Li, IG Foulds, J Kosel - Sensors, 2016 - mdpi.com
The remarkable advantages micro-chip platforms offer over cumbersome, time-consuming
equipment currently in use for bio-analysis are well documented. In this research, a micro …

A portable and autonomous magnetic detection platform for biosensing

J Germano, VC Martins, FA Cardoso, TM Almeida… - Sensors, 2009 - mdpi.com
This paper presents a prototype of a platform for biomolecular recognition detection. The
system is based on a magnetoresistive biochip that performs biorecognition assays by …

A PCR based magnetic assembled sensor for ultrasensitive DNA detection

W Ma, H Yin, L Xu, L Wang, H Kuang… - Chemical …, 2013 - pubs.rsc.org
A PCR based magnetic assembled sensor for ultrasensitive DNA detection - Chemical
Communications (RSC Publishing) DOI:10.1039/C3CC41674G Royal Society of Chemistry View …