Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Mark Tondra"'
Publikováno v:
Journal of Magnetism and Magnetic Materials. 321:1679-1682
Magnetic particles have been adapted for use as labels in biochemical lateral flow strip tests. Standard gold particle lateral flow assays are generally qualitative; however, with magnetic particles, quantitative results can be obtained by using elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2a890c744769b92e9320d33869ea6cd
https://doi.org/10.1016/j.jmmm.2009.02.113
https://doi.org/10.1016/j.jmmm.2009.02.113
Autor:
Michael C. Granger, Heather A. Bullen, Mark Tondra, Rachel L. Millen, John Nordling, Marc D. Porter
Publikováno v:
Analytical Chemistry. 80:7930-7939
This paper describes efforts aimed at setting the stage for the application of giant magnetoresistance sensor (GMRs) networks as readers for quantification of biolytes selectively captured and then labeled with superparamagnetic particles on a scanne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e88081c9fb6a418656d04f148d32b345
https://doi.org/10.1021/ac8009577
https://doi.org/10.1021/ac8009577
Publikováno v:
Journal of Magnetism and Magnetic Materials. 293:584-588
A fully integrated micromagnetic particle diverter and microfluidic system are described. Particles are diverted via an external uniform magnetic field perturbed at the microscale by underlying current straps. The resulting magnetic force deflects pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4875b43e2c25ca9ee20fe1ca6c550322
https://doi.org/10.1016/j.jmmm.2005.01.077
https://doi.org/10.1016/j.jmmm.2005.01.077
Publikováno v:
Journal of Magnetism and Magnetic Materials. 293:725-730
Tools for manipulating and detecting magnetic microcarriers are being developed with microscale features. Microfabricated giant magnetoresistive (GMR) sensors and wires are used for detection, and for creating high local field gradients. Microfluidic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cef19e857327b229fd4ea802f4ab90b8
https://doi.org/10.1016/j.jmmm.2005.02.051
https://doi.org/10.1016/j.jmmm.2005.02.051
Publikováno v:
Sensors and Actuators A: Physical. 110:254-258
Sensors based on the giant magnetoresistance (GMR) effect have been used for years as the reading heads in the hard-disk technology. However, just a simple on/off detection function has been required in that application. Various techniques have been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf9ff8283bace74cdc0aa8f3f84765e6
https://doi.org/10.1016/j.sna.2003.09.036
https://doi.org/10.1016/j.sna.2003.09.036
Publikováno v:
Sensors and Actuators A: Physical. 110:182-186
The spin dependent tunneling (SDT) effect has been observed in thin ferromagnetic multilayer structures. In general, two ferromagnetic layers are separated by a very thin non-conductive layer. In dependence on the angle between the magnetization of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f34e4c2e749dd0f318d28cf5ef1bfc81
https://doi.org/10.1016/j.sna.2003.10.044
https://doi.org/10.1016/j.sna.2003.10.044
Autor:
Cy R. Tamanaha, Jack C. Rife, Michael M. Miller, Paul E. Sheehan, Mark Tondra, Lloyd J. Whitman
Publikováno v:
Sensors and Actuators A: Physical. 107:209-218
We are developing a biosensor system, the Bead ARray Counter (BARC), based on the capture and detection of micron-sized, paramagnetic beads on a chip containing an array of giant magnetoresistive (GMR) sensors. Here we describe the design and perform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ba5777945a9294cd4367317d0d96288
https://doi.org/10.1016/s0924-4247(03)00380-7
https://doi.org/10.1016/s0924-4247(03)00380-7
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 18:1125-1129
Commercially available superparamagnetic nanospheres are commonly used in a wide range of biological applications, particularly in magnetically assisted separations. A new and potentially significant technology involves the use of these particles as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d12b2194fe094709804a9b9b219cb1d3
https://doi.org/10.1116/1.582476
https://doi.org/10.1116/1.582476
Publikováno v:
Sensors and Actuators A: Physical. 76:225-230
Anisotropic and giant magnetoresistive (AMR and GMR, respectively) sensors are attractive for industrial applications, as they are more sensitive and stable than Hall sensors. Their performance can be improved by AC excitation: flipping for AMR and A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1ac02b239b820df490d2565e069ad41
https://doi.org/10.1016/s0924-4247(99)00034-5
https://doi.org/10.1016/s0924-4247(99)00034-5
Publikováno v:
Applied Physics Letters. 85:4783-4785
This letter describes the integration of giant magnetoresistance (GMR) sensors with a microfluidic system for the velocity and size monitoring, and enumeration of flowing magnetic entities. We have fabricated a microdevice that enables: (1) controlle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0448a7942d2e31423543b3f2267e9855
https://doi.org/10.1063/1.1825059
https://doi.org/10.1063/1.1825059