Professor Shoujun Xu from University of Houston Visit WIPM

In March 31 ,2012, Professor Shoujun Xu from University of Houston visited Wuhan institute of physics and mathematics, Chinese academy of science (WIPM, CAS)  invited by Dr Xin Zhou . In April 1, he gave an excellent report titled "Laser detection for magnetic nanoparticles imaging and nuclear magnetic resonance ".

In the talk, Professor Shoujun Xu introduced the recent research interests and significant progress achieved in his group. Consider magnetometer sensitivity, spatial resolution and molecular specificity from an practical perspective, Professor Xu develop a scanning magnetic imaging (SMI) and force-induced residual magnetism spectrum (FIRMS) two technical methods to obtain spatial information and the amount of information the target molecule and to achieve the high spatial resolution and high sensitivity chemical detection at low magnetic field.

His group explores the application of atomic magnetometer for detecting biological cell  and DNA molecule. Also, Professor Xu research  the magnetic particles modified pH-sensitive material. Report sparked widespread interest in the audience; a discussion session was organized among Prof. Xu and the staffs from Prof. Xin Zhou's group.

In the low magnetic field (for example, Earth's magnetic field) conditions, the signal detection sensitivity of atomic magnetometer laser detection technology is much higher than traditional detection techniques based on inductive coil for NMR and MRI. Atomic magnetometers, which are usually operated at low magnetic field and become significantly cheaper and more portable, provide an alternative approach for low-field NMR. Also, atomic magnetometers has an advantage in study characteristics of the samples in situ magnetic environment and provides a new technology to study the chemical and biomedical magnetic resonance .During the visit ,Professor Xu visited  the atomic magnetometer construct by Xin Zhou's research group, and discussed to carry out related cooperation were in future.