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US 12,225,638 B2Granted
Integrated microheater array for efficient and localized heating of magnetic nanoparticles at microwave frequencies
AssigneeWilliam Marsh Rice University
InventorsYingying Fan, Qingbo Zhang, Linlin Zhang, Gang Bao, Taiyun Chi
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Abstract
An microheater array system includes an integrated microheater array configured to generate a localized heat and having a plurality of pixels. Each pixel includes: an inductor; a stacked oscillator configured to generate a magnetic field at microwave frequencies with tunable intensity and frequency; and an electro-thermal loop. The microheater array system may further include a plurality of magnetic nanoparticles (MNPs).
Claims19
A microheater array system comprising:
- an integrated microheater array configured to generate a localized heat, having a plurality of pixels, wherein each pixel comprises:
- an inductor;
- a stacked oscillator configured to generate a magnetic field at microwave frequencies with tunable intensity and frequency;
- and
- an electro-thermal loop,
- wherein the stacked oscillator comprises a plurality of transistors connected in series, and a biasing voltage, a biasing resistor, and an external gate capacitor are applied to each transistor.
3 more elements
A method for generating localized heat using an integrated microheater array device, comprising:
- disposing magnetic nanoparticles on a microheater array, wherein the microheater array comprises a plurality of pixels, each pixel comprises an inductor, a stacked oscillator, and an electro-thermal loop;
- generating, by the stacked oscillator, a magnetic field at microwave frequencies with tunable intensity and frequency;
- monitoring a localized heat generated by magnetic nanoparticles in response to the magnetic field;
- and
- providing feedback through the electro-thermal loop to configure an output power of the stacked oscillator,
- wherein the stacked oscillator comprises a plurality of transistors connected in series, and a biasing voltage, a biasing resistor, and an external gate capacitor are applied to each transistor.
3 more elements
Dependencies are inferred from the claim text.