Detection of 130 nm magnetic particles by a portable electronic platform using spin valve and magnetic tunnel junction sensors

被引：29
|
作者：
Cardoso, F. A. [1 ,2 ]
Germano, J. [2 ,4 ]
Ferreira, R. [1 ,2 ]
Cardoso, S. [1 ,2 ]
Martins, V. C. [1 ,3 ]
Freitas, P. P. [1 ,2 ]
Piedade, M. S. [2 ,4 ]
Sousa, L. [2 ,4 ]
机构：
[1] INESC MN, P-1000029 Lisbon, Portugal
[2] Univ Tecn Lisboa, Inst Super Tecn, P-1000029 Lisbon, Portugal
[3] Ctr Biol & Chem Engn CEBQ, Inst Super Tecn, P-1000029 Lisbon, Portugal
[4] INESC ID, P-1000029 Lisbon, Portugal
来源：
JOURNAL OF APPLIED PHYSICS | 2008年 / 103卷 / 07期
关键词：
D O I：
10.1063/1.2836713
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An integrated biosensor with magnetic tunnel juntions (MTJs) and spin valve (SV) sensor was used for 130 nm particle detection. A platform drives an external magnet generating an in-plane dc+ac magnetic field on the sensor at frequencies up to 375 Hz, provides a current to bias the sensor, and performs the signal acquisition and treatment. The signal-to-noise ratio of the SV and MTJ was characterized. Bead detection (130 nm in diameter) was performed using both sensors leading to a detection limit of 3 x 10(8) particles/ml for SV and 3 x 10(10) particles/ml for MTJ. (c) 2008 American Institute of Physics.
引用
收藏
页数：3
相关论文
共 50 条
  • [31] Micromagnetic simulation for detection of a single magnetic microbead or nanobead by spin-valve sensors
    Liu, Yaowen
    Jin, Wei
    Yang, Yaping
    Wang, Zhiguo
    JOURNAL OF APPLIED PHYSICS, 2006, 99 (08)
  • [32] High sensitivity microwave detection using a magnetic tunnel junction in the absence of an external applied magnetic field
    Gui, Y. S.
    Xiao, Y.
    Bai, L. H.
    Hemour, S.
    Zhao, Y. P.
    Houssameddine, D.
    Wu, K.
    Guo, H.
    Hu, C. -M.
    APPLIED PHYSICS LETTERS, 2015, 106 (15)
  • [33] Optical manipulation of paramagnetic particles with on-chip detection using spin valve sensors
    Lui, L. W. Y.
    Li, K. B.
    O'Shea, S. J.
    Sow, C. H.
    APPLIED PHYSICS LETTERS, 2008, 92 (01)
  • [34] Theory design and dynamic testing of Magnetic Tunnel Junction (MTJ) spin microwave detection chip
    Zhang, Dainan
    Liu, Shuaicheng
    Jin, Lichuan
    Zhang, Huaiwu
    CHINESE JOURNAL OF PHYSICS, 2024, 88 : 146 - 153
  • [35] Fabrication of soft-magnetic FeAlSi thin films with nm-order thickness for the free layer of magnetic tunnel junction based sensors
    Akamatsu, Shoma
    Oogane, Mikihiko
    Tsunoda, Masakiyo
    Ando, Yasuo
    AIP ADVANCES, 2020, 10 (01)
  • [36] Magnetic field-assisted DNA hybridisation and simultaneous detection using micron-sized spin-valve sensors and magnetic nanoparticles
    Graham, DL
    Ferreira, HA
    Feliciano, N
    Freitas, PP
    Clarke, LA
    Amaral, MD
    SENSORS AND ACTUATORS B-CHEMICAL, 2005, 107 (02) : 936 - 944
  • [37] The Detection of Magnetic Properties in Blood and Nanoparticles using Spin Valve Biosensor
    Park, Sang-Hyun
    Soh, Kwang-Sup
    Ahn, Myung-Cheon
    Hwang, Do-Cuwn
    Lee, Sang-Suk
    JOURNAL OF THE KOREAN MAGNETICS SOCIETY, 2006, 16 (03): : 157 - 162
  • [38] Spin-Topological Electronic Valve in Ni/hBN-Graphene-hBN/Ni Magnetic Junction
    Wicaksono, Yusuf
    Harfah, Halimah
    Sunnardianto, Gagus Ketut
    Majidi, Muhammad Aziz
    Kusakabe, Koichi
    MAGNETOCHEMISTRY, 2023, 9 (05)
  • [39] Control of pinned layer magnetization direction in spin-valve-type magnetic tunnel junction with an IrMn layer
    Takenaga, T
    Sadeh, B
    Kuroiwa, T
    Kobayashi, H
    Sato, K
    JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) : 6795 - 6797
  • [40] Control of pinned layer magnetization direction in spin-valve-type magnetic tunnel junction with an IrMn layer
    Takenaga, T. (takenaga.takashi@wrc.melco.co.jp), 1600, American Institute of Physics Inc. (95):
12345