@Article{icces.2023.09327,
AUTHOR = {Shihao Tian, Quanzi Yuan},
TITLE = {Dissolution at a Meniscus-Adhered Nanofiber},
JOURNAL = {The International Conference on Computational \& Experimental Engineering and Sciences},
VOLUME = {27},
YEAR = {2023},
NUMBER = {4},
PAGES = {1--1},
URL = {http://www.techscience.com/icces/v27n4/55202},
ISSN = {1933-2815},
ABSTRACT = {When one soluble fiber is partially merged into liquid, a meniscus forms and the fiber can be dissolved into 
one pinpoint with curvature. This process has been used in the manufacture of sophisticated pinpoints. 
However, it is hard to observe the dissolution process in the laboratory and the dissolution mechanisms are 
still far from being well understood in the nanoscale. Here we utilize molecular dynamics simulations to 
study the dissolution process of one meniscus-adhered nanofiber. We find that the tip’s curvature radius 
decreases and then increases, reaching the maximum in the middle state. This state is defined as the “Sh
(Sharpest) point”, which can be used as the termination criterion in applications. What’s more, the shape of 
the pinpoints can be well fitted to the double-Boltzmann function. The upper part is caused by the 
competition between the chemical potential gradient and molecular forces, while the lower part is 
controlled by the Cahn-Hilliard equation. The parameters of the double-Boltzmann function have a strong 
correlation with the width and the material of the nanofiber, where the critical width value is around 125 Å.
Furthermore, a shape factor, Sh, allows characterizing the sharpness of the dissolved pinpoints. Finally, the 
dissolved pinpoints are proved to have the characteristic of shielding capillary effects compared with the 
normal pinpoints based on theory and simulations. Our findings may help to comprehend the dissolution 
process of meniscus-adhered nanofiber and provide theoretical support for nano-instrument manufacture.},
DOI = {10.32604/icces.2023.09327}
}