University Chemistry ›› 2023, Vol. 38 ›› Issue (7): 274-280.doi: 10.3866/PKU.DXHX202208014

Special Issue:

• Science Education • Previous Articles     Next Articles

Drop of Dew on the Lotus: Popular Science Experiment Concerning Blade Contact Angle Measurements for Surface Structure Simulations

Huimei Huang, Fan Huang, Zhongrui Jiang, Pingping Wu(), Ruming Yuan()   

  • Received:2022-08-01 Accepted:2022-09-07 Published:2022-12-15
  • Contact: Pingping Wu, Ruming Yuan E-mail:wuhua3@xmu.edu.cn;yuanrm@xmu.edu.cn

Abstract:

In this popular science experiment, a variety of common green plants were selected for the experiment. The contact angle images were obtained using a mobile phone and microscopic magnifier; the original Python program was used to calculate the contact angle. According to the contact angle phenomenon of different leaves and their surface structure characteristics, glass sheets, Zn sheets, and other materials have been adopted to simulate the microstructure of leaves in a simplified manner. Additionally, bionic surface materials were obtained with different wetting properties. From the application of this blade contact angle phenomenon to the exploration and simulation of surface microstructures, this experiment revealed the relationship between the leaf structure and function from the perspective of interface chemistry and investigated the concept that chemistry comes from life.

Key words: Contact angle, Python applications, Smart phone, Bionic surface materials