IEEE S.F. Bay Area Council e-GRID's
BayAreaTech

Technology & Networking in Silicon Valley & the SF Bay Area: Upcoming Meetings, Courses and Conferences

May 26, 2008

Mtg: Spintronic Biochips for Biomolecular Recognition

by @ 3:33 am. Filed under ALL, BioEngineering, Electronics Design, NanoEngineering, Optics/Displays, Semiconductors
 

FRIDAY May 30
OEB Magnetics Chapter
Speaker: Prof. P. Freitas, INESC Microsystems and Nanotechnologies, Physics Department, IST, Lisbon, Portugal
Time: Presentation at 1:00 PM
Cost: none
Place: Conference room in Bldg 6 (6-2202), Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley
RSVP: Please respond by email by May 21 with name, company, to Peter Fischer, PJFischer@lbl.gov so that we can prepare LBNL badges in advance for you
Web: www.e-grid.net/docs/0805-oeb-mag.pdf

 

Integrated spintronic biochip platforms are being developed for portable, point-of-care, diagnostic applications. ? The platforms consist of a microfluidic unit where the bioassay takes place, an arraying and detector chip consisting of target arraying current lines and integrated magnetoresistive sensors, and electronic control and readout boards. ? Probe biomolecules are immobilized by microspotting over sensor sites, and target biomolecules, labeled with magnetic nanoparticles, are arrayed over the probe sites (magnetically assisted hybridization). ? After proper washing, hybridized targets are recognized by the fringe fields created by the magnetic beads, detected by the incorporated magnetoresistive sensors. ? Detecting geometries using out-of-plane or in-plane bead excitation and dc or ac detection/excitation will be reviewed. ? Detection limits using spin valve and tunnel junction sensors will be presented, depending ultimately on platform electronic noise and sensor noise characteristics. Applications to gene expression chips (cystic fibrosis gene mutation detection) and immunoassay chips (antibody-antigen recognition; E. coli, salmonella detection) will be presented.

Spintronic biochips are also being integrated into multi-module lab-on-chip platforms including biomolecule extraction from biological fluids (magnetophoresis), polymerase chain reaction (PCR) modules (if required), and the biomolecular recognition module. ? Alternative spintronic biochip geometries will also be presented (lateral flow biosensors), where a magnetoresistive reader scans the surface of a porous strip where labeled target biomolecules bind to immobilized probes.

Finally, a brief review of other biomedical applications of magnetoresistive sensors will be given, from hybrid sensors targeted at biomedical imaging, to magnetic tweezers/sensors for DNA translocation monitoring.

 

Comments are closed.

[IEEE S.F. Bay Area Council - www.e-grid.net] [powered by WordPress .]

SF Bay Area Council

Categories

  • ALL (4,558)
  • Antennas & Propagation (4)
  • BioEngineering (663)
  • Blogroll (33)
  • Circuits (11)
  • Communications (1,853)
  • Computers/Software (1,744)
  • Consumer Electronics (97)
  • Control Systems (18)
  • Electrical/Power (1,264)
  • Electronics Design (2,768)
  • Employment (4)
  • Employment opportunities (5)
  • Engineering Mgmt (1,805)
  • Green energy (41)
  • History (3)
  • Industrial Applications (73)
  • Information Theory (10)
  • Magnetics (22)
  • Microwave (8)
  • NanoEngineering (869)
  • Optics/Displays (968)
  • Photonics (24)
  • PhotoVoltaics (4)
  • Product Safety (21)
  • Reliability (34)
  • Robotics and Automation (15)
  • Semiconductors (1,827)
  • Signal Processing (132)
  • Vehicular Technology (9)
  • Women in Engineering (7)
  • Young Professionals (2)
  •  

    Support our advertisers:

    Visit our
    GRID MARKETPLACE

    Enabling Javascript allows us to show you upcoming conferences in this column.

    For the Firefox browser, select Tools/Options/Content and select "Enable Javascript".

    If you are using Microsoft Internet Explorer you may need to click on the yellow bar above and select 'Allow Blocked Content'. You must then click 'Yes' on the following security warning.

    archives:

    October 2017
    S M T W T F S
    « Sep    
    1234567
    891011121314
    15161718192021
    22232425262728
    293031  

    View in Google Calendar

    search blog:


    SUBSCRIBE: Get the e-GRID twice a month by email - upcoming IEEE SF Bay Area meetings, conferences.

    RSS Feed Subscribe to our RSS Feed.

    PUBLICIZE your event to IEEE's membership.


    general links:

    22 queries. 0.713 seconds