Biamphiphilic ionic liquid based aqueous microemulsions as an efficient catalytic medium for cytochrome c

2021 ◽  
Vol 23 (1) ◽  
pp. 320-328
Author(s):  
Manvir Kaur ◽  
Harmandeep Kaur ◽  
Manpreet Singh ◽  
Gagandeep Singh ◽  
Tejwant Singh Kang
Keyword(s):  
Ionic Liquid ◽  
Cytochrome C ◽  
Catalytic Reactor ◽  
Reverse Microemulsions ◽  
Catalytic Medium

BAIL-water nano-interfaces of reverse microemulsions as a better catalytic reactor for bio-catalysis.

Refolding of acid denatured cytochrome c by anionic surface-active ionic liquid: Choice of anion plays key role in refolding of proteins

2019 ◽  
Vol 582 ◽  
pp. 123872 ◽  
Author(s):  
Upendra Kumar Singh ◽  
Meena Kumari ◽  
Farooq Ahmad Wani ◽  
Mehraj ud din Parray ◽  
Juhi Saraswat ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Cytochrome C ◽  
Surface Active Ionic Liquid ◽  
Surface Active ◽  
Anionic Surface

Surfactant Aggregates in Ionic Liquids and Reactivity in Media

2010 ◽  
Vol 8 (1) ◽  
Author(s):  
Florence Gayet ◽  
Cosmin Patrascu ◽  
Jean-Daniel Marty ◽  
Nancy Lauth-de Viguerie
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Room Temperature ◽  
Scattering Data ◽  
Surfactant Micelles ◽  
Surfactant Aggregates ◽  
Amphiphilic Compounds ◽  
Reverse Microemulsions ◽  
Scattering Measurements ◽  
Confined Media

In this paper the association of different families of amphiphilic compounds in room temperature ionic liquids in micelles, vesicles and reverse microemulsions was demonstrated. First the formation of nonionic polyoxyethylene-type surfactant micelles in the ionic liquid 1-butyl-3-methyl-imidazolium tetrafluoroborate is clearly evidenced using tensiometry and dynamic light scattering measurements. Critical micellar concentrations, object sizes and aggregation numbers are given and compared to aqueous and formamide systems. Then, vesicular aggregation of glycerophospholipid DPPC in two ionic liquids bmimBF4 and emimNTf2 was evidenced. Lastly, the phase diagram and microstructure of the ternary system ionic liquid (benzylpyridinium bis(trifluoromethanesulfonyl) imide)/nonionic surfactant (octylphenol ethoxylate)/toluene were studied. Phase stability and small-angle neutron scattering data show the formation of ionic liquid-in-oil microemulsion droplets. These reverse microemulsions were used as nanoreactors to perform a Matsuda-Heck reaction. The reaction yields obtained were greater in microemulsions (67%) than in bulk IL (33%) highlighting a strong effect of confinement. The reactivity in these confined media led to promising results.

Effects of charge balance and hydrophobicity of the surface of cytochrome c on the distribution behaviour in an ionic liquid/buffer biphasic system

2019 ◽  
Vol 17 (31) ◽  
pp. 7337-7341 ◽  
Author(s):  
Kazuma Ikeda ◽  
Kyoko Fujita ◽  
Hiroyuki Ohno ◽  
Nobuhumi Nakamura
Keyword(s):  
Ionic Liquid ◽  
Cytochrome C ◽  
Surface Charge ◽  
Biphasic System ◽  
Charge Balance ◽  
Chemically Modified ◽  
System P ◽  
Distribution Behaviour ◽  
Distribution Behavior

Surface charge and hydrophobicity affected the distribution behavior of chemically modified cytochrome c in the ionic liquid/buffer biphasic system.

A Polar Liquid Zwitterion Does Not Critically Destroy Cytochrome c at High Concentration: An Initial Comparative Study with a Polar Ionic Liquid

2019 ◽  
Vol 72 (2) ◽  
pp. 139 ◽  
Author(s):  
Kosuke Kuroda ◽  
Chiaki Kodo ◽  
Kazuaki Ninomiya ◽  
Kenji Takahashi
Keyword(s):  
Ionic Liquid ◽  
Cytochrome C ◽  
Soret Band ◽  
Liquid Solution ◽  
Acetate Solution ◽  
High Concentration ◽  
Liquid Solutions ◽  
High Concentration Range ◽  
Ionic Liquid Solution ◽  
Better Than

A polar carboxylate-type zwitterion with a small volume of water can dissolve cytochrome c without significant disruption, compared with the case of a popular polar carboxylate-type ionic liquid, 1-ethyl-3-methylimidazolium acetate. A change in the Soret, Q, and 615nm bands was not observed in the 80 wt-% polar zwitterion solution, whereas a shift in the Soret band, diminishing Q band, and appearance of the 615nm band was found in the 80 wt-% polar ionic liquid solution. It suggests that concentrated polar ionic liquid solutions critically disrupt the structure of cytochrome c, and the polar zwitterion solution used in this study was better than a 1-ethyl-3-methylimidazolium acetate solution in a high concentration range.

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