Efficient antimicrobial activity and reduced toxicity of 1-dodecyl-3-methylimidazolium tetrafluoroborate ionic liquid/β-cyclodextrin complex

The formation of a host-guest inclusion complex system between β-cyclodextrin and baicalin and its dissolution characteristics

“…Figure S1 presents the 1 HNMR spectra of BCL, β‐CD, the physical mixture and the inclusion complex β‐CD/BCL. The characteristic peaks of β‐CD (Figure S1.a) were consistent with the previous report . As for BCL could not be dissolved in D 2 O at all, resulting in no obvious shift signal could be obtained from the 1 HNMR spectra (Figure S1.b).…”

“…Figure depicted the thermograms of the BCL, β‐CD, the physical mixture and the inclusion complex β‐CD/BCL. Natural β‐CD (Figure a) exhibited a broad endothermic peak at about 87 °C, corresponding to water removal from the β‐CD cavity . In addition, β‐CD revealed a peak of glass transition temperature at 218 °C.…”

“…To gain additional insights into the interactions between the guest and host β‐CD which occur in solution, 1 HNMR spectroscopic studies were carried out. It was well‐known that if the guest molecule was inserted into the hydrophobic cavity of β‐CD, the H‐3 and H‐5 protons of glucopyranose units located in the cavity interior undergo appreciable shielding, while the H‐1, H‐2 and H‐4 protons on the outer surface are relatively unaffected . Figure S1 presents the 1 HNMR spectra of BCL, β‐CD, the physical mixture and the inclusion complex β‐CD/BCL.…”

The enhanced biological activities of three Zn (II) complexes based on different 1,2,4‐triazole fungicides

“…For B. berengriana ( I ) and W. gibberellic ( II ), complexes 2 and 3 show greater toxicity ratios (4.01, 4.73, and 3.95, 4.39, respectively) in comparison with L 3 and L 4 . Moreover, complexes 1 – 4 exhibit stronger antifungal efficacy against some fungi than the reported complexes, which is worthy of mention. For example, the reported EC 50 values of Cu (II) complexes based on tebuconazole, Co (II) complexes based on diniconazole and uniconazole against Botryosphaeria ribis ( I ) range from 0.17 to 1.40 mg/l, which are all higher than that of the complex 2 (EC 50 = 0.096 mg/l).…”

Novel 3-Methyl-2-alkylthio Benzothiazolyl-Based Ionic Liquids: Synthesis, Characterization, and Antibiotic Activity

“…Among them, 1-[(1R,2S,5R)-(−)-menthoxymethyl]-3-alkylimidazolium chlorides demonstrated an extremely high activity against microbes with a wide spectrum of activity and alkoxymethyl(2-hydroxyethyl)dimethylammonium acesulfamates have been shown to be potential insect feeding deterrents. Especially, the series of ILs with imidazolium nucleus have been widely investigated by a great number of researchers and related work has made a lot of progress [ 13 ]. The mechanism behind their antimicrobial action is also considered similar to that of cationic surfactants.…”