Article
Chemistry, Multidisciplinary
Henrik Palmelund, Jukka Rantanen, Korbinian Lobmann
Summary: Deep eutectic solvents (DESs) are composed of a hydrogen bond donor and acceptor, and the interactions between them significantly lower the melting point of the mixture. Despite having eutectic melting temperatures above room temperature, all investigated DESs were able to appear liquid at room temperature under ambient conditions due to low RH0.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Inorganic & Nuclear
Renata A. Maia, Benoit Louis, Stephane A. Baudron
Summary: This study found that the green Deep Eutectic Solvent reline can be used to synthesize HKUST-1 and successfully achieved a material with a rose morphology, but also discovered another crystalline material Cu-2(BTC)Cl under optimized reaction conditions. It was also shown that HKUST-1 can transform into a non-porous chloride-incorporating material upon heating in reline, highlighting a novel feature of DES in MOF synthesis as a structure-directing agent triggering the transformation between two different MOF structures.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Aditi Prabhune, Ranjan Dey
Summary: Deep Eutectic Solvents (DESs) have emerged as potential alternatives to conventional solvents in many industrial applications due to their safety, greenness, ease of preparation and wide range of applications.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Elena A. Golysheva, Natalya A. Maslennikova, Denis S. Baranov, Sergei A. Dzuba
Summary: This study investigates the characteristics of supercooled deep eutectic solvents (DESs), showing the coexistence of solid and liquid microphases with clear or diffuse boundaries. The stochastic molecular librations detected by pulsed EPR reveal stronger rigidity of molecular packing in ChCl-thiourea compared to reline. The temperature dependence of stochastic molecular librations in reline is similar to that of lipid bilayers and globular proteins.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Jennifer Noro, Joana Cabo, David S. Freitas, Catarina S. Roque, Mariana de Castro, Artur Cavaco-Paulo, Carla Silva
Summary: In this study, three deep eutectic mixtures (DES) were used as mediums to synthesize glucose laurate and glucose acetate. Lipases from Aspergillus oryzae (LAO), Candida rugosa (LCR), and porcine pancreas (LPP) were employed as catalysts. The results showed that DES did not deactivate the lipases when used as medium. For transesterification reactions, combining LAO or LCR with DES 3 resulted in efficient production of glucose laurate, while LPP performed best in DES 2 for glucose acetate synthesis. Substituting vinyl laurate with vinyl acetate led to different behaviors, with LCR and LPP showing better catalytic activity in DES 1 for glucose acetate production. LAO had lower activity, with only around 40% product yield in DES 3. These findings highlight the potential of biocatalysis combined with greener solvents for the synthesis of differentiated sugar fatty acid esters.
Article
Environmental Sciences
David Lapena, Diego Errazquin, Laura Lomba, Carlos Lafuente, Beatriz Giner
Summary: The study investigated the ecotoxicity of three pure deep eutectic solvents and their mixtures with water, finding low toxicities in different biomodels and considering most solvents readily biodegradable. A complete analysis comparing ecotoxicity and biodegradability under other conditions was provided.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Polymer Science
Dorota Skowronska, Katarzyna Wilpiszewska
Summary: This review describes the application of deep eutectic solvents (DESs) for dissolving starch, plasticizing it, and making other modifications. DES can be a good alternative to common starch plasticizers and ionic liquids, and the wide range of DES component combinations allows for materials with specific properties for different applications.
Article
Chemistry, Physical
Karzan A. Omar, Rahmat Sadeghi
Summary: The study found that hydrogen bond donors that interact strongly with choline chloride and form deep eutectic solvents exhibit positive deviation from semi-ideal behavior, while hydrogen bond donors that do not interact with the hydrogen bond acceptor and cannot form deep eutectic solvents show negative deviation from semi-ideal behavior.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Review
Chemistry, Analytical
Muhammad Saqaf Jagirani, Mustafa Soylak
Summary: Deep eutectic solvents (DESs), a new class of environmentally friendly solvents, have gained attention for their ability to extract and separate targeted analytes from complex samples. DESs are liquid at room temperature and possess excellent thermal and electrical stability. They are sustainable solvents with non-volatile, non-flammable, chemically stable, and biocompatible properties. DESs can be tailored to meet specific needs due to their tunable physicochemical properties. This review summarizes the use of DESs-based adsorbent materials and highlights their unique properties in extraction and separation applications.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Chemical
Francesca Russo, Matteo Tiecco, Francesco Galiano, Raffaella Mancuso, Bartolo Gabriele, Alberto Figoli
Summary: In this study, porous polymeric membranes were prepared using DESs and NADESs for the first time, and the performance of the membranes was optimized by adding co-solvents and adjusting the composition of the coagulation bath. The results demonstrated the potential of DESs and NADESs as solvents for the preparation of sustainable polymeric membranes for water treatment applications.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Maninder Meenu, Vasudha Bansal, Sudha Rana, Nitya Sharma, Vinod Kumar, Vaishali Arora, Monika Garg
Summary: Anthocyanins are extracted using alternative solvents such as ionic liquids, deep eutectic solvents, and natural deep eutectic solvents, which are more environmentally friendly and efficient compared to conventional solvents. Acid-based deep eutectic solvents with 20-30% water content showed the highest anthocyanin extraction yield. Ultrasonic-assisted extraction was the most common and efficient method, and DES-based extracts exhibited the highest stability and antioxidant activity. Fruits and their by-products are the most commonly used samples, while cereal and legumes are less explored.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Chemistry, Physical
D. Reuter, P. Muenzner, C. Gainaru, P. Lunkenheimer, A. Loidl, R. Boehmer
Summary: Research found a close coupling between ionic and molecular motions in typical deep eutectic solvents, but in some cases decoupling is possible. In addition, at low temperatures, the ionic conductivity of certain deep eutectic solvents is significantly enhanced.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Review
Chemistry, Multidisciplinary
Tracy El Achkar, Helene Greige-Gerges, Sophie Fourmentin
Summary: Deep eutectic solvents, emerging in green chemistry only seventeen years ago, have led to a plethora of publications covering various research areas and diverse fields of application. They are seen as promising alternatives to conventional organic solvents due to their straightforward preparation using highly accessible and natural compounds, as well as high tunability in properties. The physicochemical properties of these solvents, such as phase behavior, density, viscosity, ionic conductivity, surface tension, and polarity, can be controlled by factors like the choice of forming compounds, molar ratio, temperature, and water content.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Engineering, Chemical
Norafiqah Ismail, Jun Pan, Mahmoud Rahmati, Qian Wang, Denis Bouyer, Mohamed Khayet, Zhaoliang Cui, Naser Tavajohi
Summary: In this study, a new family of non-ionic deep eutectic solvents (NIDES) is proposed for membrane preparation, and high-performance PVDF membranes are efficiently prepared by dissolving PVDF polymer.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Energy & Fuels
Yau Zu Khoo, Yu-Hsuan Ho, Kuang-Yu Chang, Yan-Ping Chen, Li-Jen Chen
Summary: This study determined the dissociation conditions of methane hydrates influenced by reline DES, urea, and choline chloride, and found that these additives demonstrated an inhibitory effect on methane hydrate formation.
Article
Chemistry, Physical
Omid Shayestehpour, Stefan Zahn
Summary: In recent years, deep eutectic solvents (DESs) have emerged as alternatives to common ionic liquids and organic solvents. In this study, a polarizable model was developed to investigate the structure and dynamic properties of the mixture reline. The results showed that the polarizable model agreed well with experiments and significantly improved the predictions compared to the nonpolarizable model.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Chemistry, Physical
Omid Shayestehpour, Stefan Zahn
Summary: In recent years, deep eutectic solvents have gained attention as environmentally friendly alternatives to common organic solvents and liquid electrolytes. This study explores the use of machine learning techniques for molecular dynamics simulations of these solvents, specifically focusing on a mixture of choline chloride and urea. The results demonstrate that using machine learning potentials trained on density functional theory data allows for efficient and accurate simulations of large-scale systems, and the obtained properties are consistent with first-principles simulations and experimental results.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2023)