Compositions and Physicochemical Properties of Tween Type Surfactants-Based Microemulsions

Combined phase behavior, dynamic light scattering, viscosity and spectroscopic investigations of a pyridinium-based ionic liquid-in-oil microemulsion

“…Among the nonionic surfactants, polyoxyethylene sorbitan esters (Tweens) are the most studied surfactants because of their low price and easy availability. 35,[40][41][42][43] According to Yaghmur et al, 43 the presence of a bulky polyoxyethylene head group, attached to a sorbitan ring, results in the hydrophilicity of Tweens. In another report by Shevachman et al, 41 it was proposed that Tween-based surfactants can form a less compact structure at the oil-water interface.…”

“…27,35,36,41,43,46,47 Short-chain alkanols can decrease the polar part-oil interfacial tension, which is otherwise unachievable by single-chain commercial surfactants, and thus modify the spontaneous curvature of the surfactant lm at the interface. Cosurfactant molecules can also act as spacers between surfactant molecules at the interface, 40 and additionally can alter the polarity of the polar and apolar phases when used as a cosolvent. 41 Digout et al, 28 Li et al, 39 Moulik et al 36 and Abuin et al 46 have carried out systematic investigations using n-alkanol to understand the effect of chain length on the stability of different microemulsions.…”

Tailoring of Sodium hypochlorite Lipid-free nanoemulsion: Ex-Vivo Comparative Study with Chlorhexidine HCl Nanoemulsion as an Antibacterial Root Canal Irrigant

“…Also, It was noted that formulae F3 and F4 have smaller particle sizes than other formulae. This could be due to the presence of Tween80, which has better emulsifying and solubilizing properties for sodium hypochlorite due to its high HLP value [26,27]. LF/NE do not contain natural lipids and represent the most hydrophilic formulations.…”

An aqueous electrolyte with up to 2.9 V operating voltage

“…Thus, we propose a green-sustainable microemulsion electrolyte with Tween 20 (non-ionic surfactant with a polar head group containing multiple poly(ethylene oxide) oligomers) which is stable, nontoxic, and food-grade. 12 A 2.9 V operating voltage was achieved, which exceeds 2.5 V and achieves the same level as organic electrolytes. This microemulsion electrolyte possesses high conductivity, low cost, environmental friendliness, and sustainability; moreover, it does not require the synthesis process and complicated preparation as organic electrolytes, which is expected to be an alternative to organic electrolytes.…”