Article
Biochemistry & Molecular Biology
Dorota Skowronska, Katarzyna Wilpiszewska
Summary: This paper describes the method of obtaining potato starch nanocomposites plasticized with a deep eutectic solvent, and investigates the effect of montmorillonite addition on the properties of potato starch films. The obtained nanocomposites showed improved mechanical and barrier properties.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Xiangyu Sun, Yan Yang, Jiaming Yu, Qifeng Wei, Xiulian Ren
Summary: This study developed a chitosan-based supramolecular aerogel as a novel wound dressing against bacterial infections. It demonstrated significant antibacterial effects, excellent biocompatibility, and effective wound healing promotion. The unique microstructure of the aerogel allowed for excellent water absorption and environmental friendliness.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Xiangyu Sun, Jiaming Yu, Qifeng Wei, Xiulian Ren
Summary: A supramolecular biofilm crosslinked by hydrogen bond between natural deep eutectic solvent and chitosan was studied and prepared successfully to reduce bacterial infection. It exhibited high killing rates against Staphylococcus aureus and Escherichia coli, and can be degraded in soil and water, showing excellent biocompatibility and biodegradability. Moreover, it has UV barrier property, which can effectively prevent UV-induced secondary injury to wounds. Overall, the NADES-CS supramolecular biofilm has great potential for medical applications and lays the foundation for sustainable polysaccharide materials.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Environmental
Zhen Shi, Jirong Wang, Kairui Guo, Hongli Wang, Hui Nie, Zhigang Xue
Summary: Researchers report a class of three-dimensional interconnected polyurea-based electrolytes with enhanced phase separation structure using a deep eutectic solvent (DES). The DES selectively plasticizes the soft segment in polyurea and increases its chain motion, while inducing further aggregation of the hard segment in polyurea and forming an enhanced dynamically physical cross-linking network. The gel polyurea-based electrolytes (GPUEs) with a phase separation structure achieve decoupling of mechanical properties and ionic conductivity, showing a combination of superior mechanical strength (3.2 MPa) and high ionic conductivity (1.5 x 10-4 S cm-1, 30 degrees C). Moreover, the Li|GPUEs|LiFePO4 coin cell shows a satisfactory initial discharge specific capacity (higher than 150 mAh g-1 at 1 C), and the capacity retention is higher than 80% after 500 cycles.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Cuicui Li, Chaojian Zheng, Haohe Huang, Hongxia Su, Chongxing Huang
Summary: This study prepared chitosan (CS) composite films by selectively dissolving lignin using deep eutectic solvents (DES), and investigated the toughening effect of DES/lignin on CS film substrate and its mechanism. The addition of DES/lignin effectively improved the plasticity of CS film, resulting in a maximum elongation at break of 62.6% for the plasticized film, which was 12.5 times that of the CS film. FTIR and NMR analyses demonstrated that the molecules in the DES/lignin complex interacted with CS, breaking the hydrogen bonds between CS molecules, and then recombined with CS molecules via hydrogen bonding. This study shows the potential of DES/regenerated lignin in improving the toughness of CS films and provides insights for the modification of plasticity in CS films.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Food Science & Technology
Pengquan Zhao, Jiandong Wang, Xinyu Yan, Zihui Cai, Lina Fu, Qi Gu, Lin Liu, Haojie Jin, Yujie Fu
Summary: In this study, a food packaging film with higher antioxidant and antimicrobial activities was produced by incorporating the bioactive extract of Rosa roxburghii Tratt leaves into a chitosan/zein matrix. The film showed improved mechanical properties, light barrier properties, water vapor permeability, and exhibited strong antioxidant and antibacterial activities, extending the shelf life of blueberries and cherry tomatoes.
FOOD PACKAGING AND SHELF LIFE
(2022)
Article
Biochemistry & Molecular Biology
Xiangyu Sun, Yiruo Wang, Jiaming Yu, Qifeng Wei, Xiulian Ren
Summary: In this study, a chitosan deacetylation method based on the NADES system was proposed, which enhanced the deacetylation process by interfering with the hydrogen bond network. Chitosan with a deacetylation degree of 83.77% was obtained. The experimental results showed that NADES not only improved the deacetylation degree, but also reduced alkali-induced damage to the molecular weight.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Chemistry, Physical
Canhui Ling, Tuoya Naren, Xinsheng Liu, Jixu Yang, Pengfei Xiao, Weifeng Wei, Xiaobo Ji, Gui-Chao Kuang, Libao Chen
Summary: In this study, a novel self-healable polymer electrolyte (SHPE) was developed by in-situ polymerizing a mixture of butyl acrylate and 2-ureido-4-pyrimidinone (UPy) with plastic crystal succinonitrile (SN) and lithium bis(trifuoromethanesulfonyl) imide (LiTFSI). The SHPE exhibited high ionic conductivity and mechanical strength, addressing the limitations of traditional polymer electrolytes and improving the practical performance of lithium metal batteries.
MATERIALS TODAY ENERGY
(2023)
Article
Engineering, Environmental
Chia-Wei Lien, Balaraman Vedhanarayanan, Jian-Hong Chen, Jeng-Yu Lin, Hsiang-Hsi Tsai, Li-Dong Shao, Tsung-Wu Lin
Summary: In this study, a co-solvent-in-deep eutectic solvent system was developed by mixing water and acetonitrile with a typical DES electrolyte. The addition of co-solvents improved the conductivity and flame-retardant properties of the DES, leading to a wide electrochemical stability window. Furthermore, a hydrogel consisting of 1T-MoS2 and reduced graphene oxide was used as electrode materials for supercapacitors, demonstrating high energy density and capacitance retention after cycles.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Liteng Li, Xiaofang Li, Susu Zhang, Hongyuan Yan, Xiaoqiang Qiao, Hongyan He, Tao Zhu, Baokun Tang
Summary: By utilizing a quaternary ammonium salt to form a deep eutectic solvent, the greenness of acrylic acid was successfully enhanced through polymerization. In vitro and in vivo tests confirmed the effectiveness of this strategy in reducing toxicity and broadening applications.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Y. Tanaka, K. Ajino, H. Ogawa, H. Mori
Summary: Deep eutectic electrolytes have gained attention in energy-related fields. This study presents a solvent-free synthetic route to ion-conductive polymers by using metal salt/amide-based deep eutectic monomers. The synthesized polymers exhibit high ionic conductivity and can be obtained through photoinduced radical polymerization without the use of volatile organic solvents in an air environment.
MATERIALS TODAY CHEMISTRY
(2022)
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, Applied
Jiahao Yu, Shanlin Xu, Gulden Goksen, Caifu Yi, Ping Shao
Summary: This paper introduces the potential of deep eutectic solvents (DES) as plasticizers for chitosan film in food packaging. Films based on chitosan and DES consisting of choline chloride (ChCl) and organic acids were studied for their structural, mechanical, thermal, contact angle, optical, antioxidant, and antibacterial properties. The addition of ChCl and acetylsalicylic acid resulted in films with optimal mechanical characteristics, reduced water contact angles, decreased decomposition temperature, strong UV shielding, and antioxidant properties. Films containing ChCl, acetylsalicylic acid, malonic acid, and lactic acid showed excellent antibacterial properties against Escherichia coli and Staphylococcus aureus.
FOOD HYDROCOLLOIDS
(2023)
Review
Food Science & Technology
Kairong Wu, Jing Ren, Qian Wang, Maheshati Nuerjiang, Xiufang Xia, Chun Bian
Summary: This review outlines the composition, preparation, and properties of NADES, as well as summarizes its potential mechanisms in freezing preservation, heavy metal removal from food, and extraction of phenolic compounds. It also discusses its applications in cryopreservation, food analysis, food component extraction, as a food taste enhancer, and food film. Lastly, the potential and challenges of NADES in the food field are reviewed.
Article
Energy & Fuels
Rushikesh A. Prajapati, Girirajsinh C. Jadeja
Summary: Ultrasound-assisted deep eutectic solvent (DES) extraction was used to extract bioactive compounds from red dragon fruit peel, which were then utilized to produce chitosan-based antioxidant films. The films exhibited improved elasticity and water vapor permeability, while reducing plastic pollution.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Polymer Science
Elizaveta V. Batishcheva, Darya N. Sokolova, Veronika S. Fedotova, Maria P. Sokolova, Alexandra L. Nikolaeva, Alexey Y. Vakulyuk, Christina Y. Shakhbazova, Mauro Carlos Costa Ribeiro, Mikko Karttunen, Michael A. Smirnov
Summary: This study demonstrates the preparation route of cellulose nanofiber dispersions from bacterial cellulose using ethylene glycol- or glycerol-based deep eutectic solvents (DES). The combined influence of DES treatment and ultrasound on the thermal and mechanical properties of bacterial cellulose nanofibers (BC-NFs) is investigated. The results show that the maximal Young's modulus is achieved with ethylene glycol-based DES and ultrasound treatment, while the maximal strength is achieved with glycerol-based DES and ultrasound treatment. The improved mechanical and thermal characteristics are attributed to the disordering of the BC-NF surface structure and the preservation of high crystallinity bulk.
Article
Polymer Science
Denis Andzheevich Sapegin, Galina Nikolaevna Gubanova, Elena Nikolaevna Vlasova, Natalya Vladimirovna Zaharova, Nadezhda Vasil'evna Afanas'eva, Elena Nikolaevna Popova, Maria Petrovna Sokolova, Viktor Konstantinovich Lavrentyev, Oleg Nikolaevich Primachenko, Svetlana Viktorovna Kononova
Summary: This study investigates the prospective strategy of introducing blocks inclined to form areas of high crystallinity into sulfonated block co-polyimide to enhance swelling resistance and dimensional stability. The obtained copolymer with a highly crystalline block is characterized and its transport properties are evaluated. The results show that the introduction of a high-crystalline block can lead to a stable proton conductivity in a wide range of temperature and relative humidity values.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Alexandra L. Nikolaeva, Alexander N. Bugrov, Maria P. Sokolova, Elena M. Ivan'kova, Ivan Abalov, Elena N. Vlasova, Iosif Gofman
Summary: By studying the fabrication and characterization of polyimide/metal oxide nanocomposite films, we have identified trends in the functional properties of these materials based on factors such as the type, size, concentration of the nanofiller, and the chemical structure of the matrix polyimide.
Article
Nanoscience & Nanotechnology
Alexander Smirnov, Andrei M. Semenov, Yuri B. Porozov, Boris A. Fedorov
Summary: The SASPAR program was used to calculate SAXS curves of proteins in solution, and the results were compared with experimental data. It was found that the structure of single-domain proteins in solution is similar to their crystalline structure, indicating that the surrounding water molecules do not significantly alter the protein structure. However, multi-domain proteins showed noticeable differences in their crystalline and water structures.
NANOSYSTEMS-PHYSICS CHEMISTRY MATHEMATICS
(2022)
Article
Polymer Science
Veronika S. S. Fedotova, Maria P. P. Sokolova, Vitaliy K. K. Vorobiov, Eugene V. V. Sivtsov, Mauro C. C. Ribeiro, Michael A. A. Smirnov
Summary: Two polymerizable ionic liquids were synthesized and their chemical structure and thermal properties were analyzed. One of the ionic liquids demonstrated the potential to dissolve bacterial cellulose and showed promising applications in 3D printing ink.
Article
Polymer Science
Alexandra L. L. Nikolaeva, Alexander N. N. Bugrov, Maria P. P. Sokolova, Igor V. V. Kuntsman, Elena N. N. Vlasova, Elena M. M. Ivan'kova, Ivan V. V. Abalov, Iosif V. V. Gofman
Summary: This paper reports on novel polyimide (PI) nanocomposites filled with binary mixtures of metal oxide nanoparticles and nanocarbon materials. The structure, morphology, thermal, and mechanical properties of the materials were comprehensively studied. The synergistic effect of the nanoconstituents on various functional characteristics of the PIs was revealed, and the possibility of manipulating the material properties by choosing the proper combination of nanofillers was demonstrated. This research provides a platform for the design of PI-based engineering materials with tailored characteristics for extreme conditions.
Article
Polymer Science
Veronika S. Fedotova, Maria P. Sokolova, Vitaly K. Vorobiov, Eugene V. Sivtsov, Natalia V. Lukasheva, Michael A. Smirnov
Summary: This study aimed to investigate the influence of water as a co-solvent on the interaction between a polymerizable ionic liquid and bacterial cellulose. It was found that the addition of water reduces the viscosity and yield stress of the solvent, and decreases the stability of dispersion under stress. The optimal composition of ChA/water was determined to ensure printability and stability of the ink.
Article
Polymer Science
Angelina P. Prosvirnina, Alexander N. Bugrov, Natalya V. Bobrova, Eugene V. Sivtsov, Alexandra L. Nikolaeva, Almaz M. Kamalov, Maria P. Sokolova, Michael A. Smirnov
Summary: Inks for 3D printing were prepared by dispersing methacrylate-functionalized bacterial cellulose nanofibers (CNF) in a polymerizable deep eutectic solvent (DES) with water as a cosolvent. The resulting 3D-printed gels were composed of chemically and physically crosslinked networks formed from modified CNF and polymerized DES, respectively. The addition of water improved the mechanical properties of the composite gel, while an anhydrous system exhibited better shape memory properties.
