Tsinghua University

Nankai University

Wei Wu

Qing Zhao

Lei Xing

Jing-Jun Xu

Zhanglin Lin

Bihong Zhou

Wanghui Xu

Lingli Zeng

Meng-Xin Ren

Jun-Jun Ma

Jia-Xin Chen

Wei Cai

A system for determining a second-order nonlinear susceptibility of a material includes a laser light source, a polarization modulator, a light collector, a polarization detector and a controller. The controller can obtain the second-order nonlinear susceptibility of the sample to be tested according to the test data. The system for determining the second-order nonlinear susceptibility of a material can directly test a material (block or film) with a thickness of hundreds of nanometers, and draw a second-order nonlinear susceptibility fitting curve of the material according to the test results of the optical system.

System and method for determining second order nonlinear susceptibility of material

The present invention relates to a method for production and purification of polypeptides. In particular, the present invention relates to a fusion protein comprising a solubility-enhancing peptide tag moiety, a self-aggregating peptide moiety and a moiety of target peptide and to a method for production and purification of target peptides through expressing said fusion protein.

Methods for production and purification of polypeptides

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Tianjin, China

Wei Wu