Approximate expression of Young’s equation and molecular dynamics simulation for its applicability<xref rid="cpb_28_1_016801fn1" ref-type="fn">*</xref><fn id="cpb_28_1_016801fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant No. 11072242), the Key Scientific Studies Program of Hebei Province Higher Education Institute, China (Grant No. ZD2018301), and Cangzhou National Science Foundation, China (Grant No. 177000001).</p></fn>

Approximate expression of Young’s equation and molecular dynamics simulation for its applicability**

Project supported by the National Natural Science Foundation of China (Grant No. 11072242), the Key Scientific Studies Program of Hebei Province Higher Education Institute, China (Grant No. ZD2018301), and Cangzhou National Science Foundation, China (Grant No. 177000001).

Cui Shu-Wen^{1, 2}, Wei Jiu-An^{2, 3}, Liu Wei-Wei¹, Zhu Ru-Zeng^{2, †}, Ping Qian⁴

Schematic of a liquid drop on a solid surface showing the contact angle: θ < 90° wetting, and θ > 90° non-wetting.