Supramolecular Materials
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2026
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IF 8.2
Baichen Liu,Kai Wang,Ying Guan,Yongjun Zhang
Functional monomers play a key role in protein-imprinted polymers. Inspired by the ability of albumin to bind and deliver lipids, imidazolium-based ionic liquid (IL) monomers with an allyl group and a long chain alkyl group were selected as cationic functional monomer for synthesis of molecularly imprinted polymers (MIPs) of BSA. The “shape-memorable imprint cavity” strategy, which uses peptide crosslinkers (PCs) to construct shape-memorable imprint cavities, was also adopted. Fluorescence quenching demonstrated that the IL monomers have a larger binding constant with BSA than the conventional cationic monomer DMAEMA, because they bind with BSA via not only electrostatic interaction but also hydrophobic force due to their long-chain alkyl group. In addition, with increasing length of the alkyl group, the IL monomers bind with BSA more strongly. Compared with the BSA MIP using DMAEMA, significantly improved imprinting efficiency was observed when using the IL monomers as cationic monomers. Particularly the MIP using [C 8 VIm]Br exhibits an adsorption capacity of 983.90 mg/g and an imprinting factor of 7.76. The selectivity of the MIP towards BSA was also improved. In addition, like other MIPs using the “shape-memorable imprint cavity” strategy, the new BSA MIPs also exhibit advantages such as complete template removal under mild conditions and excellent reusability. The new BSA MIP was successfully used to extract BSA from fetal bovine serum, demonstrating its high potential for the separation and purification of BSA from complicated biological fluids.
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POLYMER ENGINEERING AND SCIENCE
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2026
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IF 3.6
Li Zhou,Haoxin Chen,Anxin Li,Xiaowei Zuo,Jia Li
Epoxy resins are widely utilized owing to their excellent chemical resistance, favorable dimensional stability, and strong adhesion. However, their inherent flammability, high brittleness, and low impact strength significantly restrict their application in high-performance fields. In this study, a novel and environmentally friendly reactive ionic liquid, [PPyam]Ps, was designed and synthesized to modify epoxy resins, aiming to enhance both flame retardancy and mechanical properties. This ionic liquid is free of halogens and heavy metals, consistent with the principles of green and sustainable development. According to the study, after modification with [PPyam]Ps, the epoxy resin exhibits a limiting oxygen index (LOI) of up to 31.8% and achieves a V-0 rating in the UL-94 test. Furthermore, its peak heat release rate (PHRR) and total heat release (THR) are reduced by 35.3% and 38.9%, respectively. Notably, [PPyam]Ps remains in a liquid state during the epoxy curing stage, reducing the prepolymer viscosity, improving system flowability and wetting behavior, and acting as an internal plasticizer. Consequently, the tensile strength, flexural modulus, and impact strength of the resulting composite increase by 34.4%, 63.24%, and 68.95%, respectively. This work provides a new strategy for developing high-performance epoxy composites that integrate excellent flame retardancy and mechanical properties. Highlights A P, N, S reactive ionic liquid flame retardant was synthesized. It integrates multi-element flame retardancy, plasticization, and co-curing. It boosts epoxy flame retardancy via gas and condensed phase synergy. It improves epoxy mechanical properties via crosslinking and plasticization.
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ACS Applied Polymer Materials
·
2026
·
IF 4.7
Guoliang Yang,Haohang Yuan,Bin Liu,Kaige Yan,Xinwei Wang,Shujuan Liu,Qian Ye,Weimin Liu
Marine biofouling imposes significant economic and ecological challenges to maritime activities. Hydrogels are considered effective antifouling materials owing to their highly hydrated surfaces. Herein, nanocomposite hydrogels incorporating ionic liquid-functionalized gallium-based liquid metal (IL-GLM) were successfully fabricated. The ionic liquid (VBBIm+Cl–) was grafted onto the surface of GLM through free radical polymerization, enhancing dispersibility and antifouling efficiency. The resulting IL-GLM microgels were embedded into an acrylic acid/acrylamide hydrogel matrix to form IL-GLM@gel nanocomposite coatings. These coatings exhibited superior antifouling activity and mechanical performance, arising from the synergistic effects of Ga3+ release and ionic liquid functionality. Notably, IL-GLM@gel achieved antibacterial and microalgae removal rates exceeding 95 and 85%, respectively, and an increase in tensile strength by 119% and elongation of break by 57%. This study demonstrates that IL-GLM@gel hydrogels hold strong potential as advanced antifouling coatings for marine applications.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Xiangyu Li,Siyu Han,Dongshu Chen,Xiang Li,Kuihong Lv,Jie Ren,Bai Wang,Jianshe Hu
ZnBr 2 -regulated PIL/FPIL platform enables multimodal wearable sensing. • PIL-16.5 senses 0–800% strain with GF up to 5.54 and 1000-cycle stability. • Thin FPIL detects humidity, pulse, and respiration signals for wearable use. • K-means-assisted Random Forest identifies four breathing states with 95% accuracy. Soft ionic conductors are promising materials for wearable electronics, yet their practical application remains limited by the difficulty of balancing mechanical robustness, ionic transport, and multimodal sensing within a single material system. Herein, we report a ZnBr 2 -enhanced poly(ionic liquid) elastomer (PIL) prepared by UV polymerization of a [VEIM]Br-derived ionic precursor. Spectroscopic analyses, XPS, and DFT calculations indicate that ZnBr 2 reorganizes bromide-rich ionic environments within the PIL network, providing a structural basis for balancing network reinforcement and ion migration. The optimized PIL-16.5 exhibits a strain-sensing range of 0–800%, segmented gauge factors of up to 5.54, and stable electrical output over 1000 cycles at 100% strain. It also exhibits water-assisted self-healing at room temperature, recovering 89.5 ± 3.5% of its fracture strain and 87.4 ± 6.8% of its toughness, together with solution-assisted recyclability. Beyond mechanical sensing, the elastomer shows clear electrical responses to temperature and humidity, supporting multimodal sensing. This material supports wearable monitoring of joint movement, arterial pulse, and respiration. Furthermore, a machine-learning workflow was used to analyze respiratory signals, enabling differentiation among four respiratory states with an average classification accuracy of approximately 95% and demonstrating the feasibility of lightweight, data-driven physiological-state recognition. This work establishes a PIL-based sensing platform that combines large deformability, recoverability, multimodal responsiveness, and compatibility with data-driven analysis, showing potential for respiratory monitoring and wearable health applications. Download: Download high-res image (257KB) Download: Download full-size image
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JOURNAL OF CHROMATOGRAPHY A
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2026
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IF 4
Xin Tang,Yao Chen,Xueqin Ding
Food authentication, particularly the identification of meat species, relies on the efficient extraction of high-quality DNA from complex matrices. Conventional magnetic solid-phase extraction materials typically require multistep synthesis to coat functional layers onto an iron oxide core, which complicates their preparation and limits practical application. To address this challenge, we developed a magnetic ionic liquid-functionalized graphene adsorbent (G-MIL) that integrates the magnetic component and the functional modifier into a single material, thereby eliminating the need for a separate magnetic core and simplifying the synthesis process. This G-MIL material enabled the development of a rapid, one-step DNA extraction method that combines vortex-assisted dispersion and magnetic separation, effectively integrating isolation, enrichment, and purification without tedious centrifugation steps. The key extraction parameters were systematically optimized. The method demonstrated excellent repeatability (RSD = 2.15%, n = 3) and high selectivity for DNA in the presence of interfering proteins and amino acids. Most importantly, this approach was successfully applied to the authentication of beef products, reliably distinguishing pure beef from adulterated counterparts. This work not only presents a novel and efficient adsorbent for DNA extraction but also provides a robust and straightforward platform for enhancing traceability and ensuring authenticity in the food supply chain.
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PubMed
高影响因子
Separations
·
2026
·Vol. 13
·期 2
·72
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IF 3.5
Mengshuai Liu,Xiaoman Li,Mengmeng Zhao,Xuyang Jiu,Chuang Yao,Minglei Tian
Background: Food waste contains abundant (+)-catechin, but its efficient recovery remains challenging. This study aimed to prepare ionic liquid (IL)-modified sorbents and establish an efficient method for (+)-catechin recovery from chocolate waste via solid-phase extraction (SPE). Methods: Three series of IL-modified sorbents (Sil-IL, ZIF67-IL, Sil@ZIF67-IL) were synthesized. Their adsorption performance was evaluated under different conditions; adsorption isotherm and kinetic data were fitted to Langmuir/Freundlich and pseudo-first/second-order models, respectively. Sorbent stability and (+)-catechin recovery from chocolate waste extracts were tested. Results: Sil@ZIF67-Hmim showed the highest adsorption capacity (154.4 mg/g) at 25 °C within 120 min. Adsorption followed the Langmuir model (R2= 0.99), indicating chemisorption. Sil@ZIF67-Hmim was subjected to repeated solid-phase extraction (SPE) for five consecutive days; the recovery rate ranged from 98.1% to 99.2%, and the relative standard deviation (RSD) was 3.2–4.4%. Conclusions: Sil@ZIF67-Hmim is a high-efficiency sorbent for (+)-catechin recovery from chocolate waste, providing a novel approach for food waste valorization and highlighting the application potential of IL-modified MOF-silica composites.
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FOOD CHEMISTRY
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2026
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IF 10.4
Feiyue Liu,Gaoqi Ye,Genying Li,Ruoyan Yang,Jie Liu,Lingxiao Gong,Jing Wang
This study screened eight imidazole-based ionic liquids (ILs) for the pretreatment of soybean hulls to enhance the preparation of hemicellulose-derived oligosaccharides with anti-inflammatory activity. Results identified 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) as the most effective solvent, universally improving hemicellulose yield by approximately two-fold and purity by 15% across alkali, acid, hydrothermal, organic solvent, and enzymatic extraction methods. Structural analyses revealed that [Bmim]Cl introduced significant surface voids and reduced crystallinity while effectively preserving the intrinsic chemical functional groups. Consequently, the modified hemicellulose exhibited significantly enhanced water-holding capacity, oil-holding capacity, and swelling ability. The derived oligosaccharides significantly downregulated the secretion of pro-inflammatory mediators, including NO, IL-6, and TNF-α, in LPS-induced RAW264.7 cells. The XOS4 fraction derived from Trichoderma xylanase displayed the most potent anti-inflammatory activity, resulting from a low polymerization average degree and a low arabinose/xylose ratio (0.64). In conclusion, the IL-mediated pretreatment strategy provides an efficient pathway for breaking down soybean hull recalcitrance.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Yunchang Fan,Yafang Tian,Lei Yang,Yanhe Nie,Xinjia Wei,Haibao Zhu
Two types of poly(ionic liquids) (PILs), namely linear PILs (LPILs) and reticulated cross-linked network PILs (RPILs), were synthesized and evaluated for the adsorption of gold thiosulfate complex ([Au(S 2 O 3 ) 2 ] 3− ) from thiosulfate solutions. Experimental results showed that the adsorption of [Au(S 2 O 3 ) 2 ] 3− on the PILs followed the pseudo-second-order kinetic model, indicating that the adsorption process was dominated by chemical adsorption. In terms of adsorption thermodynamics, the bromide-based LPIL fitted the Hill adsorption model, whereas the other PILs followed to the Freundlich model. The main interactions between the PILs and [Au(S 2 O 3 ) 2 ] 3− were electrostatic attraction and anion – π interactions, and ion exchange dominated the gold adsorption process. The RPILs exhibited higher gold adsorption capacities than the LPILs. However, gold desorption was more readily achieved with LPILs, primarily owing to their weaker affinity for gold species. In addition, the perchlorate-based LPIL showed good adsorption selectivity and recyclability toward [Au(S 2 O 3 ) 2 ] 3− . This study provides a promising strategy for the efficient separation and recovery of gold from thiosulfate media.
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BIORESOURCE TECHNOLOGY
·
2026
·
IF 8.2
Jing Yao,Hong Yan,Junli Xu,Yao Zhang,Qing Zhou,Rana R. Neiber,Xingmei Lu,Dongxia Yan,Fubao Sun,Yi Li,Jiayu Xin
Photothermal pretreatment of corn stalk at low temperature was developed. • 84.68% cellulose retention and 83.03% lignin removal were achieved at 80 ℃, 4 h. • Photothermal synergistic strategy enhanced the separation of cellulose and lignin in corn stalk pretreatment. Efficient fractionation of lignocellulosic components is essential for sustainable biomass valorization. Herein, a visible-light-assisted ionic liquid (IL) composite system composed of 30% 2-hydroxy-N-(2-hydroxyethyl)- N -methylethanaminium methanesulfonate ([BHEM]mesy) and 70% ethylene glycol, containing 0.1 wt% photocatalyst g-C 3 N 4 , was developed to achieve low temperature photothermal fractionation of corn stalk. The IL provides protonic sites and hydrogen-bonding capability for lignin solubilization, while the dispersed photocatalyst absorbs light energy to accelerate mass transfer and enhance solvation selectivity between lignin and cellulose. Under the optimized conditions (80 ℃, 4 h), 83.03% of lignin is removed while 84.68% of cellulose is retained. The regenerated lignin exhibits reduced molecular weight, while the purified cellulose phase enables aerogel fabrication. Compared to conventional hydrothermal pretreatment, visible-light coupling enhances the pretreatment process. Reduces the reaction temperature and maintains cellulose crystallinity, confirming its superior pretreatment efficiency. This study establishes an integrated photothermal biomass fractionation strategy that offers a novel and highly efficient method for biomass utilization. Download: Download high-res image (124KB) Download: Download full-size image
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Polymers
·
2026
·Vol. 18
·期 9
·1109
·
IF 5.8
Liuli Zhu,Jiatian Zhu,Jingpeng Zhou,Qin Feng,Baojie Liu,Chengrong Qin,Chen Liang,Caoxing Huang,Shuangquan Yao
To address the challenges of inefficient depolymerization and undesirable condensation side reactions of lignin in lignocellulosic biomass, this study employed an ethanolamine pyruvate protic ionic liquid (EAP) pretreatment system to achieve selective separation of lignin from eucalyptus while simultaneously enabling its in situ structural activation. Under optimized conditions (pyruvate-to-ethanolamine mole ratio of 1:3, 120 °C, 40 min), the EAP system afforded a lignin separation yield of 79.0 ± 0.6%, with dissolution yields of cellulose and hemicellulose of 9.6 ± 0.3% and 11.2 ± 0.4%, respectively. According to 2D-HSQC NMR and31P NMR analyses, the relative content of β-O-4 ether linkages in the isolated lignin decreased from 18.4 ± 0.4% to 14.2 ± 0.3% after EAP treatment. The total phenolic hydroxyl content reached 2.26 ± 0.08 mmol/g, and the syringyl-to-guaiacyl (S/G) ratio declined from 1.72 ± 0.04 to 0.71 ± 0.03. Based on these observations, it is proposed that the ethanolamine component facilitates the dissociation of the lignin network through hydrogen bonding and stabilizes reactive intermediates, while the pyruvate component participates in the cleavage of β-O-4 ether linkages and the removal of methoxy groups via proton catalysis and nucleophilic attack. Compared with the ethanolamine and ethanolamine acetate systems, EAP pretreatment yielded lignin of higher purity (98.4 ± 0.3%) under milder conditions, and the isolated lignin exhibited stronger antioxidant activity (IC50= 0.17 ± 0.02 mg/mL). This work offers insights into the development of pretreatment systems that combine efficient separation with structural preservation of lignin.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
·
IF 9.1
Hecheng Bai,Jiaying Cui,Tongbo Guo,Yuxin Tang,Lin Wang,Jiaxin Cao,Zhongguo Li
Waste liquid crystal display (LCD) panels containing indium tin oxide (ITO) conductive films are important secondary resources for indium recovery. However, conventional inorganic-acid leaching processes usually cause severe equipment corrosion and secondary pollution. In this study, a mild and efficient leaching system using the acidic ionic liquid (IL) [Bmim]HSO 4 was developed for recovering indium from waste LCD panels. Complete indium leaching was achieved under the optimized conditions of 5% IL, 5 g·L −1 ITO glass powder, 70 °C, and 180 min. The leaching process selectively disrupted the ITO structure and promoting indium dissolution under mild conditions, while causing no severe corrosion of the glass substrate. Reusability tests showed that the ionic liquid regenerated by acid-base treatment maintained excellent leaching performance, confirming its good recyclability. Kinetic analysis indicated that the initial leaching stage was jointly controlled by internal diffusion and chemical reaction, with an apparent activation energy of 30.53 kJ/mol, whereas the later stage was controlled by internal diffusion, with an apparent activation energy of 17.25 kJ/mol. This work provides a green and effective route for indium recovery from waste LCDs and offers both technical guidance and theoretical support for the industrial recycling of indium-containing electronic waste.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Xiankun Wu,Huiqin Xu,Keyi Huang,Wentao Zheng,Youting Wu,Xiaomin Zhang
Functionalized ionic liquid-cyclohexanone composites are proposed and designed. • An excellent H₂S uptake (7.34 mol·kg −1 at 313.2 K and 1.0 bar) is achieved. • Carbonyl and acetate are responsible for superior H₂S uptake. • Conversion of H 2 S into thiols and catalysts recovery by water extraction. Traditional functionalized ionic liquids (ILs) require tedious structural derivatization to boost separation yet suffer from high synthetic cost and poor industrial scalability. Herein, a facile cyclohexanone (Cyc)-based composite strategy was proposed relying on reversible H 2 S absorption enabled by carbonyl moieties instead of conventional functional-group derivatization. Four commercial ILs were blended with Cyc to construct IL − Cyc systems for efficient selective H 2 S capture and catalytic valorization. Among these candidates, [Emim][Ac] − Cyc delivered a high H 2 S uptake of 7.34 mol·kg −1 at 313.2 K and 1.0 bar. Combined spectroscopic characterizations, quantum chemical calculations and molecular dynamics simulations verified that synergistic interactions between acetate and carbonyl sites account for superior H 2 S affinity. Moreover, [Emim][Ac] − Cyc efficiently catalyzed the addition of H 2 S to epoxides for thiol synthesis, with catalyst recyclability realized by water extraction. This work provides guidance for the design of low-cost desulfurization materials toward sustainable H 2 S resource utilization. This work presents IL–Cyc composites for efficient H 2 S capture and catalytic conversion. Download: Download high-res image (150KB) Download: Download full-size image
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危险品化学品经营许可证（带存储）