Synthesis, chemistry, physicochemical properties and industrial applications of amino acid surfactants: A review

Synthesis, self-assembly, bacterial and fungal toxicity, and preliminary biodegradation studies of a series ofl-phenylalanine-derived surface-active ionic liquids

“…Therefore, the most promising surfactants revealing the sufficient surface activity along with reasonably low toxicity (and designed for desirable high biodegradability 50 ) are the medium chain length members of the studied series. The SAILs with hexyl (19,27,35) and octyl (20, 28, 36) chain length demonstrate CMC values comparable to those for C 12 TAB 75 or C 12 PyBr 99 (in the case of C 6 SAILs) and C 14 TABr 75 (in the case of C 8 SAILs), widely used surfactants. In addition, low to moderate toxicities towards microorganisms for these SAILs may lead to their biodegradability.…”

“…imidazolium and cholinium SAILs (25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40) are provided in Table S4 and Fig. 3b,c.…”

“…12 Synthesis, physicochemical properties and industrial applications of amino acid surfactants demonstrate wide commercial opportunities for this ever-growing class of surfactants. 35,36 Special attention should be paid to the plausible synergetic effect of a combination of ILs containing natural biologically active molecules, as compared with conventional ILs 37 .…”

Quaternary ammonium surfactants derived from leucine and methionine: Novel challenging surface active molecules with antimicrobial activity

“…Amino acid-based surfactants represent an interesting class of amphiphiles derived from natural sources, which have been extensively investigated in the last two decades [38] [39] [40]. Among them, those derived from cationic amino acids have been studied as alternatives to conventional antimicrobial compounds.…”

Bioensaios de toxicidade utilizando invertebrados aquáticos em exposição ao Alquilbenzeno Linear Sulfonado

“…Em função dessas características, os surfactantes apresentam diferentes graus de polaridade entre as fases fluidas tanto para óleo/água e água/óleo, o que permite a redução da tensão interfacial e superficial. Essas características levaram os surfactantes a diversos usos industriais, tais como solubilização, detergência, lubrificação, emulsificação, entre outras (BIGARDI et al, 2003;BORSATO;GALÃO;MOREIRA, 1999;DE SOUZA BEGHELLI et al, 2018;HAIGH, 1996b;SCHRÖDER, 2000;NITSCHKE;PASTORE, 2002;PENTEADO;EL SEOUD;CARVALHO, 2006;TRIPATHY et al, 2018).…”