Insights into protein-ionic liquid interaction: A comprehensive overview on theoretical and experimental approaches

Insights into the Development of Imine-Bond-Stabilized Organic Tanning and a Heteropolymer for the Post-Tanning Process─A Metal-Free Sustainable Leather Process

“…Figure c represents the ATR-FTIR spectra of collagen and modified vanillin-treated collagen. Both the characteristic imine band and amide I band of collagen occur in the range of 1690–1640 cm –1 ; hence, it is difficult to differentiate the two bands in the FTIR spectra. , Figure d shows the DSC thermogram of modified vanillin-treated collagen and control collagen; the modified vanillin-treated collagen shows higher thermal stability (68 °C) compared with the control, further confirming the imine bond crosslinking, and these results support the CD and DSC results.…”

Sustainable keratin recovery process using a bio-based ionic liquid aqueous solution and its techno-economic assessment

“…They have been used to dissolve different biopoly-mers, including cellulose, chitin, silk, lignin, and keratin, which have low solubility in organic solvents. [4][5][6][7][8][9][10] Despite the efficient dissolution presented by this class of ILs, some have raised environmental, economic and biocompatibility concerns, [11][12][13][14] leading the scientists to investigate the third generation of ILs. Following the 7 th and 10 th Green Chemistry principles, this class of ILs is derived from renewable feedstock (e.g.…”

(Bio)Sensing Strategies Based on Ionic Liquid-Functionalized Carbon Nanocomposites for Pharmaceuticals: Towards Greener Electrochemical Tools

“…After the 1980s, new formulations were designed from halides and other bulkier anions, such as BF 4 − , PF 6 − and CH 3 OSO 3 − , which remain weakly coordinated to cations and reach moderate polarity, increasing inertia to moisture and air—second-generation ILs. Currently, these last ones are among the most investigated in applied electrochemistry, especially as substitutes for ordinary polar organic solvents that inactivate biological macromolecules [ 8 , 9 , 10 ]. With the urgent need to develop eco-friendly materials and technologies, third-generation ILs have emerged, preserving the features of the previous generation but innovating with biodegradable, potentially recyclable, and lower toxicity cations (e.g., choline, amino acids, and imidazoles) and/or anions (e.g., saccharinate, alkylsulfates, and alkylphosphates) [ 4 , 10 , 11 ].…”

“…Currently, these last ones are among the most investigated in applied electrochemistry, especially as substitutes for ordinary polar organic solvents that inactivate biological macromolecules [ 8 , 9 , 10 ]. With the urgent need to develop eco-friendly materials and technologies, third-generation ILs have emerged, preserving the features of the previous generation but innovating with biodegradable, potentially recyclable, and lower toxicity cations (e.g., choline, amino acids, and imidazoles) and/or anions (e.g., saccharinate, alkylsulfates, and alkylphosphates) [ 4 , 10 , 11 ]. Some authors also include deep eutectic solvents (DESs; Lewis or Brønsted acid-base mixtures, which may contain cationic and/or anionic species) within this ILs category [ 4 ], but others prefer to study them as a new class of advanced solvents [ 12 ].…”

“…The improvement in ILs over the generations made it possible to develop compounds with electrical conductivity (0.1–20 mS [ 14 ]) and electrochemical stability (potential window ≤ 5.0 V [ 15 , 16 ]) uncommon in conventional electrolytes. Consequently, the electrochemical applications of these materials have grown dynamically and intensely in recent decades, showing usefulness in electrosynthesis [ 17 ], electrocatalysis [ 15 ], CO 2 capture and reduction [ 18 , 19 ], solid-state electrolytes [ 17 ], corrosion inhibitors [ 20 ], batteries, supercapacitors, fuel cells, (bio)sensors [ 3 , 7 , 10 ], among other cutting-edge technology systems. For electrochemical (bio)sensors, important advances have been made in designing, developing, and implementing devices and methods that reduce or eliminate hazardous chemicals in the environment.…”