“…Alkanediyl-α,ω-bis-type gemini surfactants have two head groups and hydrocarbon tails joined through a spacer near or close to head groups (Menger and Keiper, 2000;Zhou et al, 2017). Compared to the traditional monomeric surfactants, geminis show advanced properties due to introduction of spacers, such as low cmc, emulsification, unfamiliar aggregation behavior, and high surface activity (Akram et al, 2014b;Kumar and Rub, 2019a;Rosen and Tracy, 1998;Wang et al, 2013;Zana, 2002a). Because of their unique properties preferred over conventional surfactants, they are used in most practical applications including pharmaceutical, detergency, and other commercial purposes.…”