Other

Rex Chin-Yih Hong

Herng-Er Horng

Shieh-Yueh Yang

Hong-Chang Yang

Disclosed is an apparatus for measuring ac magnetization at mixture frequency. The apparatus includes an ac generating unit for generating at least a first current with a frequency fand a second current with a frequency f. The apparatus further includes a co-axial solenoid unit, driven by the first and second ac currents, to generate a first magnetic field and a second magnetic field. A pick-up solenoid is for disposing sample for detecting an ac magnetization of the sample and multiple frequency-component signals corresponding to various frequency combinations of fand fare output. The apparatus further includes a signal processing circuit for receiving the frequency-component signals, where the signal processing circuit obtains the ac magnetization of the sample at a target frequency of (&#x3b3;f+&#x3b2;f), which &#x3b3;and &#x3b2;are positive integers and the frequency fand the frequency fare two different frequencies.

Device for measuring AC magnetization of materials

A method for suppressing non-specific bindings between molecules includes providing magnetic particles dispersed in a liquid, wherein each of the magnetic particles has a magnetization. The magnetic particles are coated with coating molecules. Binding molecules mixed of first-type binding molecules and second-type binding molecules are applied to the liquid, wherein the coating molecules are specifically binding with the first-type binding molecules and non-specifically binding with the second-type binding molecules. An alternating current (ac) magnetic field is applied at an axis with a frequency level, wherein the frequency level causes suppression of the second-type binding molecules in binding with the coating molecules.

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Taipei, Taiwan

Rex Chin-Yih Hong