April 2013, the Manager Xu of L''Oreal company in Shanghai visited Prof.Yang’s group, and both conducted discussions on relevant cooperation. On July 11, 2013,with the invitation from the headquarters of the L''Oreal ( Paris, France) , Prof. Yang and PhD Shi Xudian flied to Paris and started a two-day visit. Prof. Yang gave a speech on Our Study Regarding Bacterial Cellulose at the L''Oreal headquarters, and had a communication with the project leader on relevant cooperation,fully exchanging their ideas and reaching a preliminary  consensus on further cooperation.

July 14, 2013, with the invitation from Prof. Monika , the chairman of the M6 Conference, Prof. Yang went to Zweibrücken, Germany to attend The Second International Conference on Advanced Manufacturing of Multifunctional Micro-devices. This international conference was chaired by Loughborough University(the UK), Huazhong University of Science and Technology(China) , Advanced Institute of Applied Technology(AIST) in Japan  and Kaiserslautern University of Applied Science (German), and 74 participants from six countries or territories were invited to take part in the conference. The Chinese representatives including Prof. Yang Guang , PhD Shi Xudian and PhD candidate Huang Yajia from Institute of Life ( Huazhong University of Science and Technology ) attended this conference , as well as Prof. Zhang Xianglin , Prof. Wu Shunfeng , Prof. Wu Yiping and PhD Xia Weisheng from the School of Materials . During the conference, the delegates conducted a discussion on the characterization and testing of the multifunctional micro-materials, the optimization of the pivotal process and the manufacturability and reliability of the pivotal issue, and made a report on new discoveries and breakthroughs related to the basis of principle, in material science, biology and electronic package manufacturing and process. After the conference, Prof. Monika invited Prof. Yang to visit the laboratories and teaching base of the University of Applied Sciences Kaiserslautern,  German.

July 17, 2013 , with the invitation from Prof. An-Ping Zeng,(the director of the Institute of Bio-processes and Bio-systems Engineering of Hamburg University of Technology), Prof. Yang visited the University of Hamburg. During the visiting, Prof. Yang delivered a report on Controllable Bio-fabrication based on Microbes, and made a further communication on future collaborative research with Prof. An-Ping Zeng.

July 19, 2013 , with the invitation from Prof. Reinhard Lipowsky, Prof. Yang went to Max Planck Institute of Colloids and Interfaces , and made a report on Controllable Manipulation and Assembly of Living Microbe: From Microbes to Functional Materials.

July 25, 2013, with the invitation from Prof. Cordt Zollfrank, Prof. Yang visited the Cordt Zollfrank research group of Munich University of Technology, delivered an academic lecture on Controllable Manipulation and Assembly of Living Microbe: From Microbes to Functional Materials, and reached a recommendations for future cooperation, and made a further communication on future collaborative research .