Magnetic North II : Competing Interactions in Magnetic Materials
Nba magnetic materials
-
Upload
montserrat-rivas -
Category
Documents
-
view
74 -
download
1
Transcript of Nba magnetic materials
![Page 1: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/1.jpg)
Nanobioanalysis: a multidisciplinar challenge
Montserrat Rivas,
José Ángel García, José Carlos Martínez
![Page 2: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/2.jpg)
FORC technique
SPION RF biosensor
Research environment
![Page 3: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/3.jpg)
Universidad de Oviedo
![Page 4: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/4.jpg)
Prof. Marcos Tejedor
Magnetism & Magnetic Materials in the University of Oviedo
![Page 5: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/5.jpg)
NanoBioAnalysis (NBA)
Oviedo University
Universitary Central Hospital
Materials Institute
![Page 6: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/6.jpg)
NanoBioAnalysis (NBA)
Magnetic Materials Integrated
Optics
Electrochemical sensors
Electrophoresis &
Paper-based tech
Clinical Immunology
& Microbiology
Biotechnology & Biomedical
Essays
![Page 7: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/7.jpg)
FORC technique
SPION RF biosensor
Research environment
![Page 8: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/8.jpg)
The FORC idea
![Page 9: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/9.jpg)
FORC: First-Order Reversal Curves
![Page 10: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/10.jpg)
SFD: Switching Field Distribution
𝑆𝐹𝐷 𝐻ext, 𝐻𝑟 =𝜕𝑚
𝜕𝐻ext 𝐻𝑟
![Page 11: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/11.jpg)
FORC diagram
𝜌 = −1
2
𝜕2𝑚
𝜕𝐻𝑒𝑥𝑡𝜕𝐻𝑟
J.C. Martínez-García et al., J. Phys. D: Apl. Phys. 47 (2014) 015001
![Page 12: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/12.jpg)
Detection of non-interacting single domain particles using first‐order reversal curve diagrams
R. Egli et al, Geochemistry, Geophysics, Geosystems 11 (2010)
FORC diagrams measured on the Lake Ely sediment sample.
![Page 13: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/13.jpg)
Magnetic and Mössbauer Spectral Study of Core/Shell Structured Fe/Au Nanoparticles
S. J. Cho et al., Chemistry of Materials 18 (2006) 960
![Page 14: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/14.jpg)
Set of FORCs
J.C. Martínez-García et al., J. Alloy Compd. (2014)
![Page 15: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/15.jpg)
Set of SFDs
![Page 16: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/16.jpg)
FORC differential dissection of soft biphase magnetic ribbons
J.C. Martínez-García et al., J. Alloy Compd. (2014)
![Page 17: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/17.jpg)
Co nanostructures in ordered templates: comparative FORC analysis
Co array samples of (a) nanowires with diameters of 65 nm, (b) nanopillars with diameters of 60 nm, and (c) nanotubes with diameters of 65 nm.
M.P. Proenca, Nanotechnology 24 (2013) 475703
![Page 18: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/18.jpg)
FORC technique
SPION RF biosensor
Research environment
![Page 19: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/19.jpg)
Magnetoimpedance-based detection
![Page 20: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/20.jpg)
Magnetoimpedance
Co70Fe5Si10B15
amorphous ribbon
![Page 21: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/21.jpg)
Samples and methods
Test fixture ribbon to impedance analyser (1-110 MHz) + Helmholz coils (dc field)
Superparamagnetic 10 nm Fe3O4 nanoparticles (SPIONs)
NPs deposited onto blotting paper strips
![Page 22: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/22.jpg)
NPs detection with Co (GMI)
![Page 23: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/23.jpg)
Magnetoimpedance
Co70Fe5Si10B15
amorphous ribbon
![Page 24: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/24.jpg)
Cu-based detection
![Page 25: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/25.jpg)
NPs detection with Cu
![Page 26: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/26.jpg)
NPs detection with Cu
Cu-ribbon
Co-ribbon
![Page 27: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/27.jpg)
Printed Circuit Board
![Page 28: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/28.jpg)
Printed Circuit Board
![Page 29: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/29.jpg)
NPs detection with PCB1
PCB1
Cu-ribbon
x 5
![Page 30: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/30.jpg)
Meander-line circuit
![Page 31: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/31.jpg)
NPs detection with meander-structure
Meander
PCB1
x 3
![Page 32: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/32.jpg)
Planar spiral-like circuit
![Page 33: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/33.jpg)
NPs detection with spiral-sensor
PCB1
Spiral
x 7
![Page 34: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/34.jpg)
Planar spiral-like circuit
![Page 35: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/35.jpg)
NPs detection with 5-turn spiral
5-turns
PCB1
x 30
![Page 36: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/36.jpg)
Origin of the detection
Changing magnetic field
Induced electromotive forces
Switching magnetic moment
![Page 37: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/37.jpg)
Skin effect
400 mm
35
mm
Active area
Cross-section of the conductor track
![Page 38: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/38.jpg)
Proximity effect
Cross-section of three parallel traces
![Page 39: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/39.jpg)
A frequency-related detection
![Page 40: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/40.jpg)
Signal versus SPION mass
PWB5S
![Page 41: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/41.jpg)
LFT: Lateral Flow Test
Sample
Conjugated SPIONs Test line
Control line
Magnetic immunoassay
![Page 42: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/42.jpg)
LFT/SPION rf-detection
❶
❷
❸
❹
❺
❻
❶
❻
❷
❸
❹
❺
![Page 43: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/43.jpg)
Magnetic immunoassay
![Page 44: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/44.jpg)
Conclusions
![Page 45: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/45.jpg)
Electromagnetic detection of SPIONs: highly sensitive, low-cost and simple fabrication/handling.
Biosensing via nanoparticles detection
Nano Bio
Sensor
Biomarkers
NPs synthesis
Size-effects
Characterization
Biotoxins Cells
Antibodies Proteins
Biointerfacing
![Page 47: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/47.jpg)
NanoBioAnalysis March 2012 http://grupos.uniovi.es/web/nba
Thank you for your kind attention
![Page 48: Nba magnetic materials](https://reader035.fdocuments.net/reader035/viewer/2022062308/55a02a1d1a28ab131f8b456d/html5/thumbnails/48.jpg)