期刊
LAB ON A CHIP
卷 15, 期 3, 页码 696-703出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4lc01076k
关键词
-
类别
资金
- Basic Science Research Program through the National Research Foundation of Korea [NRF-2013R1A1A2065222]
- DGIST-GIST [2014060011]
An on-chip magnetometer was fabricated by integrating a planar Hall magnetoresistive (PHR) sensor with microfluidic channels. The measured in-plane field sensitivities of an integrated PHR sensor with NiFe/Cu/IrMn trilayer structure were extremely high at 8.5 mu V Oe(-1). The PHR signals were monitored during the oscillation of 35 pL droplets of magnetic nanoparticles, and reversed profiles for the positive and negative z-fields were measured, where magnitudes increased with the applied z-field strength. The measured PHR signals for 35 pL droplets of magnetic nanoparticles versus applied z-fields showed excellent agreement with magnetization curves measured by a vibrating sample magnetometer (VSM) of 3 mu L volume, where a PHR voltage of 1 mu V change is equivalent to 0.309 emu cc(-1) of the volume magnetization with a magnetic moment resolution of similar to 10(-10) emu.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据