absorptive characteristics of polyaniline synthesized in different solvents were studied. water and mixture of water with other solvents were implemented for polyaniline synthesis. synthesized polyanilines in powder shape is used as an adsorbent to remove toxic hexavalent chromium from aqueous solutions. experiments were conducted in batch mode. removal mechanism involving polyaniline is the co...

In this research, the new separation method based on micro solvent cluster extraction and preferential solvation has been described. A proposed separation method using aqueous mixed solvents of organic solvents (acetonitrile, 1-propanol, 2-propanol and 1,1,1,3,3,3-hexafluoro-2-propanol) or ionic liquids and an open tubular capillary has been separated the model compounds (2-naphthol, 4-nitroani...

A test system based on the use of ion exchanges, gel filtration on Sephadex and extraction with organic solvents is described. This system provides information on the stability, molecular size, charge, and polarity of the pharmacologically active compounds in the aqueous plant extracts. Knowledge of these properties permitted the development of an isolation method for a glucose present in the a...

This work describes a strategy to mitigate the undesirable transport of small molecules among aqueous droplets immersed in fluorinated oil by replacing surfactant molecules with nanoparticles as emulsion stabilizers (Pickering emulsions). Amphiphilic silica particles were synthesized and redispersed in fluorinated solvents, and monodispersed picoliter aqueous drops were generated from flow-focu...

Background: Plants contain diverse phytochemicals with different solubility levels, depending on their molecular charges and polarity. This study was conducted to examine the effects of three extraction solvents in their pure and aqueous forms: absolute petroleum ether, acetone and ethanol on the phytochemical profile and antioxidant activities of Manihot esculenta leaves extracts. Methods: Th...

Aqueous zinc‐ion batteries (AZIBs) have attracted wide attention for large‐scale energy storage. However, the practical application of AZIBs is limited by poor reversibility Zn anodes. Recently, a strategy adding low‐cost anti‐solvent to electrolytes proposed experimentally, which can improve therefore performance. Nevertheless, mechanism remains elusive, especially how improved and why various...

Gymnema kollimalayanum A. Ramachandran and M.B. Viswan (Asclepiadaceae) is a new plant found in Kolli hills, Eastern Ghats, Peninsular India. The present investigation deals with the antibacterial potentials of the aqueous and organic solvents extracts from powdered leaves of G. kollimalayanum were tested against eight Gram-negative (Klebsiella pneumoniae, Proteus vulgaris, Salmonella paratyphi...

1. The optical rotation and reduced viscosity of bovine serum albumin and chymotrypsinogen A in solvents containing phenol, acetic acid and water were studied. 2. The changes brought about in the properties of the proteins by varying the composition of the solvent or by heat treatment in these solvents were established to be reversible. 3. A method for returning the proteins to aqueous media, b...

The polarographic study of Cd(II) with L-Tyrosine has been investigated in aqueous organic solvent mixtures at 300K. The Dimethyl sulphoxide and Dimethyl formamide solvents have been used with water to study the effect of solvents on the stability of complexes. Cadmium(II) formed 1:1, 1:2 and 1:3 complexes with L-Tyrosine in the aqueous-organic solvent mixture i.e. DMSO and DMF. The stability c...

Approaching living systems, aqueous solutions are appropriate to characterize antioxidants, whereas the frequently used standard 1,1-diphenyl-2-picrylhydrazyl (DPPH) is insoluble in water. Therefore, mixed water-ethanol solvents were investigated using the electron paramagnetic resonance (EPR) spectroscopy. Two forms of DPPH were identified: at higher ethanol ratios a quintet spectrum character...