Geometrical potential and nanofiber membrane’s highly selective adsorption property

Abstract

The definition of a nanofiber is discussed, and the history of the development of bubble electrospinning is briefly elucidated, its main properties are emphasized, and the morphology of its products is summarized. A geometrical interpretation of the nanofiber membrane's adsorption is given as a natural intrinsic property of the geometrical potential of nanoscale structure. Nano-effect, Casimir effect, capillary effect, Earth's gravity difference, Newton's gravity, and lotus leaf's highly selective repulsion property can all be interpreted using the geometrical potential or boundary-induced force.

Effect of surface active agent on bubble-electrospun polyacrylonitrile nanofibers

“…The increase in tensile strength and decrease in elongation at break had been also reported [16], this phenomenon can be well explained by Hall-Petch effect or nanoeffect of the geometrical potential theory [17][18][19][20][21].…”

Smart adhesion by surface treatment experimental and theoretical insights

“…Adhesion strongly depends upon surface morphology. This can be explained by the geometrical potential theory [21][22][23][24][25][26]. According to this theory, any surface can produce a potential called the geometrical potential.…”

“…The smart adhesion is to balance the absorbing force and repelling force by surface roughness on a nanoscale, which can be achieved by plasma treatment. Figure 2 shows the surface roughness change after plasma treatment, according to the geometrical potential theory [21][22][23][24][25][26], the tiny grains on the slightly rough fiber surface of the plasma treated abaca fibers as shown in fig. 1 can produce a boundary-induced force, which can attract water molecules, as a result, the water contact angle becomes smaller than the smooth surface without plasma treatment.…”

Filtration efficiency of a cigarette filter with X- or Y-shaped fibers

“…Fractal approach is widely used to study the air permeability [10,11], heat transfer [12][13][14][15][16] of discontinuous media including the natural fibers and nanofiber membranes [17][18][19][20][21][22]. Fractal theory is also a theoretical foundation for explanation of the Hall-Petch effect [23], lotus effect [24], and geometric potential [25,26]. The fractional dimensions are relative to the order of the fractal order in the fractal calculus [27][28][29].…”