Role of chemistry in bio-inspired liquid wettability

Abstract

Different bio-inspired liquid wettability are derived through modulation of chemistry and topography—but the chemical modulation process emerged as a superior approach for embedding desired wettability and other relevant physical properties.

Bis-Pyridine-Based Organogel with AIE Effect and Sensing Performance towards Hg2+

“…Surface wettability plays an important role in material application, especially as superhydrophobic and superhydrophilic surfaces have many potential applications [ 65 , 66 , 67 ]. The diluted gel of 1 was spread on the glass sheet with a certain thickness to avoid the basal influence, and then dried naturally.…”

Robust and durable liquid-repellent surfaces

“…Surface chemistry is one of the dominant factors that determines the wettability of materials. 411,412 Silanes, thiols, and fatty acids containing CH-and CF-based groups are always employed to reduce the surface energy of a roughened surface to fabricate super liquid-repellent surfaces. Silanes are more stable due to their covalent bonding with the underlying surface, but thiols are generally less stable under ambient conditions, UV exposure or thermal treatment.…”

Surface Modification, Topographic Design and Applications of Superhydrophobic Systems

“…For example, alkylamines of increasing chain length used for post-functionalization with various amines, ranging from propylamine to octadecylamine, yielded hydrophobic (pentyl, hexyl, heptyl), and superhydrophobic (octyl, decyl, dodecyl, octadecyl) coatings. [52] Jana et al [53] developed a switchable superhydrophobic to underwater superoleophobic polymeric materials on exposure to acidic media. The prepared chitosan gel materials with amine groups on chitosan allowed for a rare pathway to the catalyst-free Michael addition-assisted covalent crosslinking with a multifunctional acrylate crosslinker to obtain a chemically reactive materials for post modification.…”

“…For surfaces with acrylates groups, reactive polymeric coating could be subjected to post‐modification with alkylamines through a facile Michael addition reaction. For example, alkylamines of increasing chain length used for post‐functionalization with various amines, ranging from propylamine to octadecylamine, yielded hydrophobic (pentyl, hexyl, heptyl), and superhydrophobic (octyl, decyl, dodecyl, octadecyl) coatings [52] . Jana et al [53] .…”