ACS Biomaterials Science & Engineering
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2026
·
IF 6
You Zhou,Wenfeng Zhai,Shiyu Song,Zhengkai Han,Meng Zhou,Shangqing Yang,Jingying Wang,Yi Wang,Rui Shi,Xinyue Zhang
The aging society has increased the need for precise, real-time monitoring of muscle rehabilitation. This study aimed to develop a multifunctional flexible sensor to overcome the rigidity, skin irritation, and single functionality of conventional electrodes. The ionically conductive hydrogel-based flexible sensor was fabricated via in situ polymerization using a deep eutectic solvent (DES, choline chloride/acrylic acid) as the conductive medium within a chitosan network. The electrode exhibited low interfacial impedance for high-sensitivity surface electromyography (sEMG) acquisition alongside excellent antibacterial properties, biocompatibility, and real-time strain-sensing capability. This work provided a low-cost, integrated wearable platform with significant potential for the personalized assessment and optimization of muscle rehabilitation training.
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BIORESOURCE TECHNOLOGY
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2025
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IF 9
Haitao Yang,Yang Liu,Xingru Wu,Jie Yuan,Lan Yao
To address low cellulose conversion efficiency stemming from recalcitrance of lignocellulose, a novel ternary DES-CTAB (deep eutectic solvents- cetyltrimethylammonium bromide) system was developed by synergistically integrating CTAB with DES. And related underlying mechanisms were elucidated. Pretreated residues properties, lignin structure and lignin-cellulase interaction were systematically characterized. Results indicated that the DES-CTAB pretreatment removed 83.21 % of hemicellulose and 79.37 % of lignin while preserving 88.69 % of cellulose during pretreatment at 150 °C for 1 h. Enzymatic hydrolysis efficiency was enhanced to 71.58 %, representing 36.55 % improvement compared with DES pretreatment. It was revealed that CTAB reduced lignin hydrophobicity, inhibited β-O-4 cleavage and phenolic hydroxyl group formation, and mitigated non-productive cellulase adsorp-tion to residual lignin. Fluorescence spectroscopy analysis confirmed that CTAB significantly weakened lignin-enzyme interactions, as evidenced by a 2–3 order of magnitude decreased in the binding constant (K a ) between cellulase and residual lignin. The results could provide theoretical support for green and efficient biomass pretreatment technologies development.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Si Hong,Aocheng Wei,Chao Xie,Xiaojun Shen,Jia-Long Wen,Tong-Qi Yuan
Deep eutectic solvents (DES) are renowned for their effectiveness in deconstructing lignocellulose and extracting lignin, yet the challenges lie in lignin condensation and the disposal of the DES remnants after pretreatment. To overcome these issues, this work proposed a holistic strategy utilizing deep eutectic solvent (DES)-driven lignocellulose deconstruction to upgrade lignocellulose into nitrogen-doped carbon dots (CDs) and iron-decorated porous carbons, serving as photocatalysts and adsorbents, respectively. These nitrogen-doped CDs via the choline chloride/FeCl 3 DES pretreatment exhibited abundant nitrogen/oxygen functional groups, enhancing photocatalytic activities and facilitating effective charge separation and transfer. The photocatalytic efficiency of the CDs on dyes reached 97 % under acidic conditions primarily, and free radical quenching experiments indicated that singlet oxygen was the dominant oxidant species. Moreover, the adsorption capabilities of Fe-decorated porous carbons for Congo red reached 2432.3 mg·g −1 , surpassing most existing carbon materials. The adsorption mechanism was due to a synergistic effect including physical adsorption, coordination, hydrogen bonding, electrostatic, and π-π interactions. This study proposed a synergetic conversion of DES and lignocellulose into functional carbon materials for wastewater remediation, which inspired the development of a green and cost-effective biorefinery.
研究领域:
环境科学
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材料科学
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化学工程
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RSC Advances
·
2024
·Vol. 14
·期 5
·2993-2999
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IF 3.9
Bin Li,Haiying Liu,Mengjing Zhou,Aolin Wu,Wenrui Hao,YaJun Jiang,Zhigang Hu
Deep eutectic solvents (DES) were prepared using urea (U) and acrylamide (AM) as hydrogen bond donors (HBD) and choline chloride (ChCl) as hydrogen bond acceptor (HBA), and polyethylene glycol (PEG) was selected as a filler and uniformly dispersed in DES to prepare PEG/P(U-AM-ChCl) composite hydrogels by light polymerization. The composite hydrogels were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The effects of the content of PEG on the swelling properties, mechanical properties and fatigue resistance of the composite hydrogels were investigated. The results showed that the compressive strength and fatigue strength of the composite hydrogels were gradually enhanced with the increase of the PEG content in the composite hydrogels, in which the maximum compressive strength of the hydrogels with 1 wt% PEG added was increased by 1.86 times. The composite hydrogel had excellent swelling properties, and the equilibrium swelling degree of the hydrogel with 1 wt% PEG added reached 10.15. Meanwhile, the PEG/P(U-AM-ChCl) composite hydrogel had excellent self-healing properties, and the self-healing rate of the composite hydrogel with a PFG content of 1 wt% could reach 91.93% after 48 hours of healing. This study provides a convenient and efficient method to prepare composite hydrogels with superior swelling properties and self-healing properties.
研究领域:
材料科学
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生物医学工程
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JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2024
·
IF 2
Chen Liao,Chunying Zhu,Taotao Fu,Youguang Ma
Deep eutectic solvents (DESs) have been increasingly studied due to their wide application in many fields, such as metal treatment, extraction and separation, chemical synthesis, refinement of biological and natural components, and gas absorption. Water, as an abundant, environmentally friendly, and low-cost resource, can effectively regulate the structure and thermodynamic properties of DES; thus, it is important to study the effect of water on DESs. In this work, DESs with different water contents composed of monoethanolamine (MEA) and p-hydroxyanisole (MEHQ) in various mole ratios (1.0000:1.0000 to 5.0000:1.0000) were successfully prepared, and the density and viscosity were measured at temperatures ranging from 293.15 to 323.15 K using a U-shaped vibrating tube densitometer and a falling ball viscometer. Intermolecular interactions in DES aqueous solutions were investigated by using volumetric and viscometric properties: excess molar volume, thermal expansion coefficient, viscosity deviation, viscous flow activation energy, and excess Gibbs activation energy. The effect of the water content on the structure of DES could be roughly classified into three zones: the zone of structural integrity of DES, the zone of partial destruction of DES, and the zone of freeing of DES components.
研究领域:
化学
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材料科学
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Green Energy & Environment
·
2022
·
IF 12.781
Muhammad Faizan,Yingwei Li,Xingsheng Wang,Piao Song,Ruirui Zhang,Ruixia Liu
Deep eutectic solvents (DESs) are now considered a new class of ionic liquid analogs that have been generously used in various fields. Herein, vanadium phosphorus oxide (VPO) catalysts are synthesized in combination with a deep eutectic solvent containing rare earth metal (rE-DES), and their catalytic performance in n-butane selective oxidation to produce maleic anhydride (MA) is evaluated. The rE-DES is produced from the interaction of choline chloride (ChCl) and rare earth metal salts (Cerium, Europium, Lanthanum, and Samarium metal salt) (ChCl:rE = 1:0.5–1:3) under mild conditions. It was found that DESs served as structural modifiers and electronic promoters during VPO synthesis. It regulated the chemical state of the catalyst surface, such as the vanadium valence state, acid-base properties, and ratios of V 4+ /V 5+ , Lat–O/Sur–O and P/V. Various characterization techniques, such as FT-IR, DSC, XRD, SEM, EDS, TEM, Raman, TGA, NH 3 -TPD, and XPS, were used to examine its physical and chemical characteristics. These characteristics were correlated with the catalytic performance. The VPO catalyst modified by rE-DES showed a significant enhancement of n-butane conversion and MA selectivity while suppressing the selectivity of CO and CO 2 as well as the CO/CO 2 ratio compared to the unpromoted VPO catalyst. Especially for Ce-DES-VPO, it increased the n-butane conversion and MA mass yield up to approximately 11% and 10%, respectively. In addition, we evaluated the catalytic performance under different activation atmospheres.
研究领域:
化学工程
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催化材料
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CARBOHYDRATE POLYMERS
·
2023
·
IF 11.2
Min Zhou,Yuxuan Feng,Haidong Li,Xingjun Tian
Biomass conversion aims at degrading the structural polysaccharides of lignocellulose into reducing sugars. Pretreatment is necessary to overcome the recalcitrance of lignocellulose. The DES La/ChCl in this paper was selected based on our previous study. To examine cellulase adsorption of lignocellulose after DES pretreatment, sorghum straw was pretreated with DES under different condition. The adsorption improvement of cellulase on lignocellulose after DES pretreatment has positive impact on reducing sugar production of biomass. After DES pretreatment, 1. pore corrosion caused the upward trend of pore radius and the downward trend of SSA. 2. the hydrogen bounding force of pretreated sorghum straw and MCC decreased, the hydrogen bounding force of pretreated lignin increased. 3. although the unsaturation of pretreated lignin increased, DES pretreatment is helpful for the removal of lignin. 4. The decrease in the hydrophobicity of sorghum straw make it easier to disperse. 5. the Zeta potential of pretreated sorghum straw shifted towards the positively charged region, while pretreated lignin shifted towards the negatively charged region. 6. different adsorption behaviors were observed in specific components of cellulase mixtures (BGs, CBHs, EGs and xlylanase). These results revealing the mechanism of enzyme adsorption are conductive for understanding the role of pretreatment in biomass conversion.
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JOURNAL OF SOLUTION CHEMISTRY
·
2022
·Vol. 51
·期 10
·1199-1208
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IF 2
Wu Jieyu,Yin Tianxiang,Wang Xiaoyong
Deep eutectic solvents (DES), as a new type of green solvent, show great advantages of easy preparation and no need of purification after synthesis and great potential applications in various fields. Osthole has shown wide variety of pharmacological functions like antimicrobial, anti-inflammatory, antioxidant, or anti-cancerous. To explore the efficient delivery of osthole, we have designed a new DES based on osthole and DL-menthol with molar ratio of 1:15. The interaction between osthole and DL-menthol was checked and verified by 1 HNMR and FT-IR spectra. The physicochemical properties and anti-bacterial activity of the DES were investigated. Low viscosity and higher anti-bacterial activity against S. aureus make the DES suitable for the dermal or transdermal delivery of osthole. Therefore, the results presented herein indicated that DES may serve as a new strategy for the application of active pharmaceutical ingredients.
研究领域:
药学
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材料科学
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化学
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BIORESOURCE TECHNOLOGY
·
2023
·
IF 11.4
Fei Li,Yang Liu,Jia Jia,Hongbo Yu
Lignocellulosic biorefineries depended on effective pretreatment strategies to improve the conversion efficiency of the enzymatic hydrolysis. Here, this study coupled brown rot fungi and deep eutectic solvent (DES) to pretreat Pinus massoniana . The results showed that compared to fungal pretreatment and DES pretreatment alone, the combined ChCl-Lac/fungal pretreatments could effectively improve enzymatic saccharification of Pinus massoniana . The highest content of releasing reducing sugar reached 510.3 mg/g substrate. Environmental scanning electron micrograph (ESEM) showed that the surface structure of Pinus massoniana was almost completely torn and loose and FT-IR spectra and component analysis revealed that most of hemicellulose and lignin were selected removed and cellulose was enriched after ChCl-Lac/fungal pretreatments, which could account for the enhanced hydrolysis efficiency. The combination of biological pretreatment with DES pretreatment could be a mild and promising pretreatment approach for enzymatic saccharification of lignocellulose and had an extensive application prospect in the field of biorefinery.
研究领域:
生物技术
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生物化学工程
·
环境科学
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Wenyi Zhou,Jiahao Yu,Lei Zhao,Kai Wang,Zhuoyan Hu,Jian-Yong Wu,Xuwei Liu
Deep eutectic solvent (DES) has been recognized as a promising plasticizer for the preparation of biodegradable food packaging films. In addition, DES-plasticized chitosan (CS) films could also serve as a favorable carrier for loading active components. In this work, a ternary composite film was fabricated by plasticizing chitosan with DES and the active ingredient proanthocyanidin (PA) was used as a cross-linking agent. The incorporation of PAs significantly enhanced the toughness, elasticity, and hydrophobicity of the ternary CS-DES-PA composite films. It achieved antioxidant and bacteriostatic functions. In particular, the ternary CS-DES-PA composite films had a thickness of 0.16 ± 0.01 μm, a tensile strength of 2.63 ± 0.48 MPa, and an elongation about 73.22 %. They also have improved water resistance, UV blocking, with a high-water contact angle of 88.4° and a low water swelling of 5 % on the surface of the film. Meanwhile, the PAs in the film could slow down the browning of litchi fruits. This ternary blended film (CS-DES-PA) achieves better compatibility of the active ingredient in the film-forming substrate. It also provides a green and biodegradable packaging material for food packaging.
研究领域:
材料科学
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食品科学
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生物技术
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Zhongxuan Sun,Zhiwan Li,Meiying Xie,Yongduo Sun,Liyan Xue,Xinyuan Lan,Fan Yang
In this work, a deep eutectic solvent (DES)-driven electrodialysis membrane material was constructed, with which an electrodialysis platform was first formed by coupling electrodialysis. Separation and enrichment of 7 Li + isotopes were carried out with the electrodialysis coupled extraction platform. Because of its lower binding energy barrier for forming complexes with 7 Li + , a β -diketone-driven DES composed of tri-n-octyl phosphine oxide (TOPO) and 2-thenoyltrifluoroacetone (HTTA) was introduced to the separation and enrichment of 7 Li + isotopes. Furthermore, DES extractant was used to prepare supported liquid membranes (SLMs) because of its ability to drive extraction, its liquid state at room temperature and its good hydrogen bond network. Compared with the reported extraction systems, the separation coefficient of 7 Li + / 6 Li + ( β 7Li/6Li ) reaches 1.173 at an applied potential of 1.0 V, which is now the highest known β -value in these reported extraction systems. The Gibbs free energy change (∆ G ) of the electrodialysis coupled extraction process reaches −395.996 J·mol −1 , which explains the preferred extraction of 7 Li + isotopes. The competition and enhancement mechanisms between electromigration and extraction in electrodialysis coupled extraction were investigated by studying the Li + concentration, separation coefficient of 7 Li + / 6 Li + and Gibbs free energy change of electrodialysis coupled extraction. The separation of 7 Li + isotopes via electrodialysis coupled extraction system has potential application in chemical engineering field.
研究领域:
化学工程
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分离科学
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同位素富集
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膜技术
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电化学
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Processes
·
2026
·Vol. 14
·期 16
·2577
·
IF 3.4
Kailong Li,Yu Xu,Qiang Ma,Zhuo Li,Lei Xing,Huaneng Su,Puiki Leung,Qian Xu
Deep eutectic solvents (DESs) are promising electrolyte media for solar redox flow batteries, but their high viscosity and sluggish ion transport can limit redox-species diffusion, interfacial charge transfer, and photocharging performance. This study aimed to regulate a TEMPO/VCl3-based DES electrolyte by controlled water addition for a Yb,Er-doped TiO2–g-C3N4photoanode solar redox flow battery. DES electrolytes containing 0, 5, 10, and 15 wt% added water were evaluated by physicochemical, electrochemical, and photoelectrochemical measurements, while full-cell tests compared pristine DES with the half-cell-selected 10 wt% electrolyte. While water incorporation systematically enhanced bulk redox-species transport, the optimal photoelectrochemical performance was achieved at 10 wt% water, rather than 15 wt%. Although the 15 wt% electrolyte exhibited the highest bulk diffusivity, the 10 wt% composition provided the most favorable balance between mass transport and interfacial charge transfer kinetics. The Raman spectra supported water-induced reorganization of the bulk DES hydrogen-bonding network. Full-cell tests confirmed that the 10 wt% water-containing electrolyte delivered higher and more stable photocharging responses than pristine DES over 20 cycles. These results indicate that moderate water regulation is an effective strategy for improving DES-based solar redox flow batteries.
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