Self aggregation of the ionic liquids, 1-butyl-3-methylimidazolium chloride [C4mim][Cl], 3-methyl-1-octylimidazolium [C8mim][Cl], tetrafluoroborate [C4mim][BF4], N-butyl-3-methylpyridinium [C4mpy][Cl], in aqueous solution has been investigated through 1H nuclear magnetic resonance (NMR) and steady-state fluorescence spectroscopy. Aggregation properties were determined by application mass action theory to concentration dependence NMR chemical shifts. showed fairly good agreement with...

Measurements of the static dielectric constant (epsilon) ionic liquids (ILs) are very difficult because decay field by conductivity ILs. Herein, we describe an easy method for prediction epsilon various imidazolium-based ILs [C_n mim] from n, i.e. ratio internal pressure (P_i) and cohesive energy density (ced). A calibration curve n vs conventional organic solvents (mainly linear alcohols) has been used to estimate Estimated values having anions [Cl]-, [BF 4]-, [PF 6]-, [TfO]-, [Tf 2N]-...

Self-aggregation of amino acid ionic liquid surfactants (AAILSs) in aqueous solution has been investigated through surface tension, conductivity, steady-state fluorescence, dynamic light scattering (DLS), and transmission electron microscopy (TEM). The critical aggregation concentration (cac) AAILSs obtained from different techniques showed fairly good agreement. Surface tension measurements have used to derive adsorption properties such as efficiency (pC(20), effectiveness reduction...

Abstract Agarose has been functionalized (acetylated/carbanilated) in an ionic liquid (IL) medium of 1‐butyl‐3‐methylimidazolium acetate at ambient conditions. The acetylated agarose showed a highly hydrophobic nature, whereas the carbanilated could be dissolved water as well IL medium. Thermoreversible ionogels were obtained by cooling sols room temperature. ionogel prepared from protic–aprotic mixed‐IL system (1‐butyl‐3‐methylimidazolium chloride and N ‐(2‐hydroxyethyl)ammonium formate)...

We have constructed gelatin-based ionogel films at ambient conditions. Choline salicylate, a biobased ionic liquid (IL), has been utilized to induce antioxidant and antimicrobial properties in the film. Up 100 wt % IL loading achieved with respect gelatin matrix. The characterized for their mechanical strength, thermal stability, optical opacity, surface roughness, activity. shown excellent antioxidant, antimicrobial, UV shielding exhibited exceptional strength. prepared were used test food...

Structural changes of a globular protein, bovine serum albumin (BSA), as consequence interaction with the surface active ionic liquids (ILs)-3-methyl-1-octylimidazolium chloride, [C(8)mim][Cl], and 1-butyl-3-methylimidazolium octylsulfate, [C(4)mim][C(8)OSO(3)]-have been investigated using various physicochemical spectroscopic techniques such tensiometry, conductometry, steady-state fluorescence, far-UV circular dichroism spectroscopy (CD), dynamic light scattering (DLS). The interactional...

3-Methyl-1-octylimidazolium dodecylsulfate, [C8mim][C12OSO3], a vesicle forming biamphiphilic ionic liquid (BAIL) (J. Phys. Chem. B 2012, 116, 14363-14374), has been found to induce significant folding alterations in the structure of bovine serum albumin (BSA) aqueous medium at pH 7.0. Such have investigated detail using various physicochemical and spectroscopic techniques. Different concentration regimes (monomeric, shared aggregation, post-vesicular) [C8mim][C12OSO3]-BSA interactions...

We report simultaneous dissolution of agarose (AG) and chitosan (CH) in varying proportions an ionic liquid (IL), 1-butyl-3-methylimidazolium chloride [C4mim][Cl]. Composite materials were constructed from AG–CH–IL solutions using the antisolvent methanol, IL was recovered solutions. could be uniformly decorated with silver oxide (Ag2O) nanoparticles (Ag NPs) to form nanocomposites a single step by situ synthesis Ag NPs sols, wherein biopolymer moiety acted as both reducing stabilizing...

VersatAAIL Surfactants: Biodegradable, chiral amino acid ionic liquid surfactants (AAILSs) with a very high surface activity are synthesized and characterized. The AAILS can be applied as task-specific liquids; two examples given the mitigation of harmful algal blooms from sea water shape- size-specific synthesis nanomaterials. Detailed facts importance to specialist readers published "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available...

Morpholinium-based amide-functionalized ionic liquids (ILs) [CnAMorph][Br], where n = 8, 12, and 16, have been synthesized characterized for their micellization behavior in aqueous medium using a variety of state the art techniques. The adsorption [CnAMorph][Br] ILs at air–solution interface bulk, respectively, has found to be much better compared that observed nonfunctionalized homologous conventional cationic surfactants, as shown by comparatively higher efficiency, lower surface tension...

Abstract Magnetically recoverable and reusable CuFe 2 O 4 nanoparticles are shown to be highly efficient catalysts for the one‐pot synthesis of biologically important 1,4‐diaryl‐1,2,3‐triazoles starting from boronic acids, sodium azide, acetylenes. The use aqueous reaction medium at room temperature, low cost facile recovery catalyst by application an external magnetic field, consistently high catalytic efficiency least three consecutive cycles renders protocol operationally attractive.

An eco-friendly approach toward downstream processing of bacterial biomass for extraction an intracellular potential bioplastic material polyhydroxyalkanoates replacing chlorinated organic solvents is reported using ionic liquid (IL) 1-ethyl-3-methylimidazolium diethylphosphate ([C2mim][(C2)2OPO3]) as extractant. [C2mim][(C2)2OPO3] dissolved wet Halomonas hydrothermalis (MTCC accession no. 5445; NCBI Genbank GU938192), with ease on account its high hydrogen bond basicity (β = 1.07). The...

Catalytic depolymerization of lignin to value-added compounds is receiving increasing interest as part the circular bioeconomy.

Ameliorating the existing purification methods with more affordable, efficient, and industrially adoptable that remove heavy metal ions from contaminated drinking water constitutes a persistent technological challenge. Metal–organic framework (MOF)-based materials their excellent adsorption performance are recently explored as an alternative method to traditional methods. Here, we report MOF/biopolymer composite-based aerogel is cost-effective, highly environmentally sustainable material for...

A MOF based eutectogel with antibacterial and antioxidant attributes, along hemocompatibility, is used for the encapsulation sustained release of curcumin.

The suitability of several ionic liquids, containing imidazolium or pyridinium cations with different alkyl chains and anions ranging from small hydrogen-bond acceptors to those a large non-coordinating nature, has been tested for solubilization widely used biopolymer, agarose. solubility agarose was found depend on both the nature anion amphiphilicity cation. Dissolved regenerated using methanol, liquids were recovered recycled experiments. Regenerated largely maintained features native in...