In the naked eye world, a hair is about 0.05 mm, it is radial average cut into 50,000, it becomes a member of the naked eye can not see the nano world. What are the secrets of the microcosm? Let the unfamiliar become familiar, let the mystery become clear, its significance is great. On the morning of October 9, in the first conference room of the Library, Professor Lee Kang-taek of Yonsei University in South Korea gave a lecture entitled Research on the regulation and application of Nanoparticle aggregation and dispersion. Mr. Chen Shougang, vice president of the School of Materials, presided over the report, which was attended by dozens of teachers and graduate students of Hai University.
Hello, I'm Lee Kang-taek, thank you. One sentence of Chinese, which is not very skilled, immediately focused the students' attention, and then Professor Li began the keynote speech in fluent English. At the presentation, Professor Li made a detailed introduction to the optical properties of nanomaterials, the aggregation and dispersion of nanomaterials and the interaction of forces existing between materials, the combination and dispersion between particles is determined by the effect of the force, and the effect of the force depends on the surface effect, that is, the greater the electrostatic repulsion force, the better the dispersion. Afterwards, Professor Li also introduced the application of concentration and dispersion of quantum dots in DNA detection and white OLED devices, etc. The teachers and students participating in the conference had a fierce discussion and answer to the relevant questions of this report, so that everyone could better understand the magic of the nano world.
After the report, Du Puyu of Material Engineering Class 2015 talked about his feelings about the report: Every time I see nanomaterials, there is a sense of distance, through today's report, I understand that it is everywhere in my life, is so close to me, but also let me better understand the phenomenon of the nano world, I believe that today's analysis of Professor Li will let me study and life have a great guiding role.
Text: Zheng Huilin Zhang Yue
Photo: Ma Rongfeng
News Source: Graduate Student Association of Materials Science and Engineering
