Fig. 11: Applications of MTJ sensors on various bioassays. | npj Spintronics

Fig. 11: Applications of MTJ sensors on various bioassays.

From: Spintronic devices for biomedical applications

Fig. 11: Applications of MTJ sensors on various bioassays.

A MTJ sensor arrays of 12. (i) SEM images with common ground contact. (ii) Before and after optical images of the Listeria DNA (100 nM target) detection. (iii) Zoom-in view of one MTJ covering a 40 × 3 μm2 area. (iv) MR response of the MTJ sensor. (v) The streptavidin bound with biotinylated target DNA detection scheme of MNP. B (i) MTJ bioassay arrays surface immobilization schematic. (ii) The real-time detection of 2.5 μM target DNA (cyan) and the 2.5 μM control DNA (red) using the sensor. C (i) Schematics of MTJ blocks and flexible wearable configuration with bending structure and the effect of bending (ii) for positive and negative bending radius of 5 mm. (iii) Effect of the bending on the parallel and antiparallel resistance. A Reprinted with permission from ref. 128, copyright 2016 Elsevier B.V. B Reprinted with permission from ref. 109, copyright 2008 AIP Publishing. C Reprinted from ref. 129. licensed under the terms of the Creative Commons Attribution License CC BY 4.0.

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