APPLIED CLAY SCIENCE
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2024
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IF 5.3
Chao Li,Tie Geng,Ju Huang,Cheng Zhang,Ming Duan,Shenwen Fang,Xinliang Li,Shuai Liu
With the large-scale development of shale gas , oil-based drilling fluids have found widespread application. However, a significant challenge arises in removing small harmful solids of oil-based drilling fluids after multiple uses. Investigating the stable mechanism of harmful solids in nonpolar solvents is crucial for their removal. Here, kaolin is chosen as the harmful solid phase. Various surfactants sodium bis(2-ethylhexyl) sulfosuccinate (AOT), sorbitan monooleate (Span 80), sorbitan trioleate (Span 85), cetyltrimethylammonium bromide (CTAB), oleic acid (OA), and stearic acid (SA) are used as dispersants to explore the dispersibility and stability mechanisms of kaolin in the oil phase. Results reveal that the Span 80 and Span 85 exhibit the best dispersibility and rheological performance for kaolin, followed by AOT, while SA shows the poorest dispersibility and rheological performance. Except for SA and CTAB, the other dispersants significantly improve the wettability of kaolin particles. X-ray diffraction (XRD) results indicate that all dispersants adsorb on the surface of kaolin. FT-IR and XPS confirm that nonionic surfactants Span 80 and Span 85 adsorb on the surface of kaolin through hydrogen bonding . Strong Zeta potential on the particle surface suggests that Span 80 and Span 85 stabilize the kaolin system through electrostatic repulsion mechanisms.
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高影响因子
Journal of Materials Chemistry A
·
2025
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IF 9.5
Han Liu,Zhenyu Xu,Zhiyue He,Housheng Mao,Jiayang Lin,Naixin Zhai,Zhenzhi Cheng,Fei Gao,Guangsheng Luo,Weiping Zhou
Ultrathin and broadband microwave absorption materials are urgently needed for mitigating the detrimental effects of electromagnetic pollution for 5G applications and military stealth. In this work, high entropy heterostructured composites composed of oxides/alloys with abundant heterogeneous interfaces are engineered by introducing in-situ metal conductive phase through high-temperature reduction on solid-phase-sintered high-entropy spinel ferrites (CoNiCuX)Fe2O4. By further tailoring the elemental composition (X=Mn, Zn, Mg, Cr, MnMg, and MnCr), the dielectric, magnetic and conduction properties of the high-entropy heterostructured composites are modulated, resulting in enhanced microwave attenuation ability and optimized impedance matching characteristics. As a result, the (Co0.2Ni0.2Cu0.2Mn0.2Mg0.2)Fe2O4 derived high-entropy oxides (HEOs)/ferroalloy dual-phase composite simultaneously exhibits a minimal reflection loss of -48.77 dB accompanied by a maximum effective absorption bandwidth (EAB) of 6.08 GHz (11.92-18 GHz) at a thickness of only 1.5 mm. Furthermore, an ultra-broadband EAB of 11.5 GHz is realized by constructing macroscale gradient multilayer metamaterials with a thickness of 4.0 mm. This study demonstrates that reasonable composition and heterointerfaces engineering can facilitate synergistic effect of polarization loss, conduction loss and magnetic loss, which enables the heterostructured composites to exhibit superior impedance matching and enhanced microwave loss capability, thus achieving superior microwave absorption performance at thin matching thickness.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Dingwei Li,Bingjie Tong,Shenyuan Ouyang,Yumo Chen,Jie Wang,Bingyu Ding,Wenzhi Wu,Ting Ouyang,Kaili Mao,Helin Xu
Inflammatory bowel disease (IBD) is characterized by gut barrier disruption, necessitating combined physical protection and epithelial repair. Herein, we engineered sucralfate microspheres (HSM-TD) via microfluidic encapsulation of hydrochloric acid-modified sucralfate (HSF) and autophagy-enhancing teduglutide (TD) to synergize physical protection and gut epithelial restoration. HSM-TD with particle size of 150 μm ensured stability of its encapsulated cargoes in stomach/intestine and spontaneous formation of TD-containing HSF hydrogel on colonic mucosa. HSF could overcome the pH-dependent limitations of conventional sucralfate by forming a robust, adhesive hydrogel on colon mucosa. This pH-independent HSF hydrogel mimicked native mucus, exhibiting superior viscoelasticity, strain-dependent self-recovery with linear viscoelastic region of 19.6 % strain, and strong mucosal. In DSS-induced colitis mice, HSM-TD outperformed free TD or HSM alone, reducing body weight loss, decreasing disease active index, restoring colon length, and suppressing inflammation. Moreover, HSM-TD reshaped gut microbiota diversity, normalizing Firmicutes/Proteobacteria ratios and enriching probiotics like Lactobacillus . Mechanistically, HSF formed a transilient mucus-like barrier to prevent the pathogenic bacteria or toxins invasion, while TD restored gut epithelial barriers, upregulating tight junction proteins (ZO-1, CLDN-5, OCLN) and MUC2 expression. By synergizing immediate physical protection with epithelial repair, HSM-TD offered a transformative strategy for IBD therapy.
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高影响因子
ACS Applied Materials & Interfaces
·
2025
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IF 8.2
Aolong Li,Hao-Yu Zhao,Xiaohang Lu,Zhiyue Yang,Ji Liu,Zhong-Zhen Yu,Xiaofeng Li
The accelerating depletion of fossil fuels and escalating global energy demands have driven an urgent need for sustainable and clean energy solutions. Solar–thermal–electric systems are highly promising but are inherently limited by their real-time dependence on sunlight. Phase-change materials (PCMs) provide a potential pathway for overcoming this constraint by enabling thermal storage and delayed utilization, but conventional PCMs suffer from low thermal conductivity and poor photothermal efficiency. In this work, we develop a high-performance PCM composite by constructing a hybrid thermal conduction filler network combining sodium alginate-stabilized liquid metal nanoparticles and cellulose nanofiber-modified graphene nanoplatelets. Upon vacuum-assisted paraffin impregnation, the resulting PCM composite achieves excellent photothermal conversion efficiency of 92.7%, exceptional thermal conductivity of 24.02 W m–1 K–1 at low filler loadings of 8.35 wt %, and high latent heat retention of 98% after 100 thermal cycles. When integrated into solar–thermal–electric systems, the fabricated PCM composite ensures not only efficient solar energy harvesting and heat generation but also gradual, stable heat release and transfer, enabling sustained power outputs up to 694.3 mV and 74.7 mA. This study provides an innovative and scalable materials design strategy for overcoming the key limitations of traditional PCMs, offering broad potential for next-generation solar energy harvesting, thermal management, and sustainable energy conversion technologies.
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PubMed
高影响因子
Applied Materials Today
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2025
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IF 6.9
Zerong Wang,Ge Yan,Yi Ning,Xiaoli Zhou,Xin Lu,Qianqian Zhou,Qiwei Tian
Transarterial embolization (TAE) is a primary clinical treatment for hepatocellular carcinoma (HCC); however, its therapeutic efficacy is limited by its functional constraints. To enhance treatment outcomes, this study aims to develop a multifunctional embolic microsphere, LUT-Fe@PVA, for the combined treatment of HCC. This approach leverages a synergistic strategy that integrates TAE, sonodynamic therapy (SDT), and chemodynamic therapy (CDT) to improve the therapeutic efficacy. The LUT-Fe@PVA microspheres were synthesized via a microemulsion crosslinking method and loaded with luteolin-iron complexes to enable ultrasound-triggered reactive oxygen species (ROS) generation and Fenton reaction for enhanced tumor destruction. In vitro results demonstrated that the combination therapy significantly kills the tumor cells. In vivo, 18 F-FDG microPET/CT imaging revealed significantly reduced uptake values, while histological analysis confirmed extensive tumor cell necrosis and apoptosis in the combined therapy group. This study presents a promising multifunctional approach for HCC treatment by integrating embolization, SDT, and CDT, offering a novel strategy for effective and selective tumor treatment with minimal side effects.
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高影响因子
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
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2025
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IF 1.9
Qianqian Lv,Chuanshuo Wang,Xiaoxuan Xu,Xiaofang Lv,Wen Xia,Jinru Shang,Aokai Qin,Qianli Ma,Yang Liu,Shidong Zhou,Jimiao Duan
Drag reducers have become a common method for reducing resistance and increasing transportation efficiency in pipeline transportation of waxy crude oil. The prominent heat transfer weakening effect of drag reducers may impact the deposition of waxy oil. This study uses cold finger experiments to clarify wax deposition characteristics and mechanisms in drag-reduced waxy oil. The wax deposition mass and components are examined under different temperatures, stirring rates, drag reducer dosages, and types. The results show that a low dosage of drag reducer at high stirring rates can simultaneously reduce the total wax deposition and the overall wax content in high waxy oil. 5 mg/kg drag reducer can reduce total wax deposition by up to 15.66% and overall wax content by 7.26%. A systematic investigation reveals that adding drag reducers changes the carbon number distribution in the wax deposition layer. This change is similar to the effect of increasing wall temperature. The heat insulation and transfer weakening effects of drag-reducing fluids are likely the main mechanisms inhibiting the increase in wax deposition mass and wax content. The heat insulation effect reduces the temperature gradient near the pipe wall, while the transfer weakening effect decreases radial heat transfer. However, under low stirring rates and high dosages, the deposition mass of the drag-reduced waxy oil system increases, with the adhesive effect of polymer-type drag reducers becoming more pronounced. These findings provide a foundation for optimizing drag reducer usage in waxy crude oil pipelines, potentially leading to significant energy savings and improved operational efficiency.
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高影响因子
CELL
·
2025
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IF 42.5
Yixiao Gao,Fengyuan Xin,Tao Wang,Chengjun Shao,Ying Hu,Zhuoya Chen,Yiwei Wang,Fenghua Xie,Tianyu Li,Sijie Li,Liqun Ren,Caiqin Li,Xian Yang,Zhongjun Yang,Meijie Li,KaMun Tan,Tao Bai,Changwei Wei,Hanchuan Peng,Kun Li,Yichang Jia,Kexin Yuan
Biological structures across scales integrate seamlessly to perform essential functions. While various histological methods have been developed to reveal these intricate structures, preserving the integrity of large-volume architectures while revealing microstructures with high resolution remains a major challenge. Here, we introduce vitreous ionic-liquid-solvent-based volumetric inspection of trans-scale biostructure (VIVIT), a 3D histological method leveraging the chemical properties of ionic liquids. VIVIT transforms biological tissue into an ionic glassy state, which enables optical clearing with minimal distortion and high transparency, preserves tissue from low-temperature crystal damage, and amplifies fluorescent signals from both genetically encoded and immunostained labels, thus yielding precise and reliable mapping of fluorescent signals within intact 3D architectures. Using VIVIT, we demonstrate the link between the modality of synaptic inputs to multisensory thalamic neurons and the targets of their brain-wide outputs and identified aspects of inhibitory control in the human cortex. VIVIT thus offers opportunities to elucidate the organizational principles underlying trans-scale biostructures.
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PubMed
高影响因子
CELLULOSE
·
2025
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IF 4.8
Ke Weikang,Shi Xiaolong,Wang Hailong,Wu Tianyu,Zhang Yutao,Zhao Ruirui,Qi Zhigang,Geng Shuo,Yuan Liang,Yan Youxian
Dimensionally stable paraffin-chitin nanofibers bifunctional composite foams with excellent thermal energy storage performance and promising thermal insulation properties were successfully constructed. Pickering emulsions of paraffin stabilized by chitin nanofibers were first prepared and then assembled with chitin nanofibers to form porous structures after freeze-drying. As a result, the maximum paraffin content in the product can reach 95.3%. Correspondingly, a maximum latent enthalpy value of 197.5 and 197.2 J/g for melting enthalpy and crystallization enthalpy (approximately 91.7 and 92.2% of that of pure paraffin), with the relative retention of 96.2 and 96.7% are achieved, demonstrating its excellent energy storage capacity. The foam can withstand 232 times its weight at a temperature of 180 °C without leakage, proving its excellent high-temperature dimensional stability. The composite foam also exhibits low thermal conductivity (65 mW/m . K) for heat shielding applications. The sustainability, reproducibility, and excellent thermal regulation performances of composite foam give it great application prospects in the field of energy collection and storage.
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高影响因子
ACS Applied Materials & Interfaces
·
2025
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IF 8.2
Mengxin Huangfu,Yuankun Ren,Wei Yang,Yu Liu,Xiyu Li
Hydrogels are promising candidates for wound dressings owing to their good biocompatibility, high-water retention, and extracellular matrix-mimicking structure. However, conventional single-layer hydrogels are hard to cope with given the dynamic pH fluctuations (pH 6–8.9) of infected wounds, which exacerbate bacterial colonization and oxidative stress. Here, we engineered a multifunctional bilayer hydrogel (named PPTC) comprising a hydrophobic polydimethylsiloxane (PDMS) top layer and a polyacrylamide (PAM)-based bottom layer integrated with tannic acid (TA) and curcumin-loaded alginate microspheres (Alg@Cur). The PDMS top layer was adopted to prevent external contamination and moisture loss, while the adhesive PAM-TA-Alg@Cur (PTC) bottom layer was designed to achieve a pH-responsive therapeutic synergy. In vitro studies showed that TA exhibited a rapid release (76.66% within 12 h) to suppress bacterial proliferation and inflammation, while Alg@Cur could slowly release curcumin in a pH-dependent manner (90.32% at pH 8.5 vs 38.06% at pH 6, cumulatively), targeting alkaline microenvironments to mitigate oxidative stress. Their synergy demonstrated potent antibacterial activity (≥99.90% inhibition against Staphylococcus aureus and Escherichia coli) and reactive oxygen species scavenging ability (93.89% DPPH elimination). In a rat-infected wound model, the PPTC bilayer hydrogel synergistically accelerated infected wound healing by reducing inflammation, enhancing collagen deposition, and promoting angiogenesis. This work pioneers a pH-driven therapeutic platform for advancing smart dressings for infected wound management.
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PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
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IF 8.2
Cheng Dai,Qian Wang,Hun Huang,Ye Hu,Junlin Chen,Chuhan Lv,Hongbo Yu,Yun Li,Hua Dong
Rapid and efficient hemostasis of massive bleeding wounds remains a major challenge in clinical practice. Self-gelling powders are now emerging as the new-generation hemostatic materials due to their capability to form hydrogels via a self-gelling process and thus integrate the merits of powders and hydrogels. However, they still face several unsettled issues, such as complex components, tedious synthesis, and poor compatibility with hemostatic powders on sale. Herein, we propose a universal strategy to enhance the hemostatic, antibacterial, and wound healing performance of polysaccharide powders via a water-soluble assembly macromolecule (tannic acid-grafted carboxymethyl chitosan, CCTA). When CCTA is blended with polysaccharide hemostatic powders and exposed to blood, the abundant ortho-phenolic hydroxyl groups of CCTA can build a dense hydrogen bonding network with swollen powders (i.e., microgels), erythrocytes, and platelets, leading to the in situ formation of microgel assembly with excellent mechanical strength, tissue adhesion, and thus sealing performance. In addition, CCTA also endows hemostatic powders with good antibacterial activities. The as-formed porous microgel assembly facilitates cell migration and ingrowth, leading to accelerated wound healing and tissue repair in vivo. Three types of polysaccharide powders and three bleeding models (rat femoral artery, rabbit liver, pig liver, and spleen) are used to validate our strategy.
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PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
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IF 7.3
Chang-Wei Zhang,Jian-Zhong Ye,Xing-Ying Xue,Wen-Jun Li,Hong-Xia Chen,Cheng-Zhang Wang
Baphicacanthus cusia (B. cusia) was traditionally used as raw material to prepare indigo naturalis; however, many factories have been shut down by local governments on account of their serious pollution contributions. In this study, a green and sustainable production of B. cusia leaf extracts is proposed. Namely, new indigo extract (NIE) and phenolic acid extract (PAE) were produced in an integrated fashion by enzyme transformation coupled membrane separation and freeze-drying technologies. The small-scale process was optimized, and its feasibility was verified by a pilot experiment. Moreover, the physicochemical properties, dyeing effect, and wound-healing ability of the two extracts were systematically evaluated. The NIE could be obtained within 1 day and exhibited more than 20 times the indigo content and 1.8 times the pure indigo yield than indigo naturalis. Moreover, the NIE showed superior dye-uptake rate and washing and rubbing fastness on pure cotton poplin compared with natural indigo from India. The PAE exhibited excellent broad spectrum antibacterial activities, especially S. aureus (IC50 = 32 μg/mL). Significantly, the PAE had no toxicity and presented over 98% of the wound-healing rate on mice by increasing their collagen fiber content. All of above work is of great significance for the extension and sustained healthy development of a B. cusia industry chain.
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高影响因子
APPLIED SURFACE SCIENCE
·
2025
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IF 6.9
Baoyue Zhang,Ruixue Wang,Fan Wan,Baijie Cheng,Xueying Wu,Peipei Xu,Xiaoyun Liu,Hongyao Xu,Shanyi Guang
Defect engineering modulates polarization loss by controlling common defects, including oxygen vacancies, impurity atom doping, and lattice defects, thereby improving the electromagnetic wave (EMW) absorption capability. Here, we designed a cobalt–nickel/hollow-Fe 3 O 4 (H-Fe 3 O 4 @CoNi) dual magnetic layer structure coated with nitrogen-doped carbon via a combined hydrothermal and pyrolysis. The dual magnetic architecture not only promotes magnetic loss but also introduces numerous heterogeneous interfaces. Simultaneously, nitrogen doping facilitates defect-induced dipole polarization, synergistically enhancing dielectric loss and impedance matching. By tuning the pyrolysis temperature, the electromagnetic parameters and EMW absorption performance of the composites were effectively optimized. The H-Fe 3 O 4 @CoNi@C-N-800 exhibited the best performance, with an effective absorption bandwidth (EAB) of 5.1 GHz and a minimum reflection loss (RL min ) of −55.6 dB. Density functional theory (DFT) calculations confirmed that electronic redistribution and charge transfer occurred at the N-doped carbon/Fe 3 O 4 –CoNi interface, validating that the enhanced dielectric loss stems from both dipole and interfacial polarization. Furthermore, CST simulation shows that the maximum radar cross section (RCS) value of H-Fe 3 O 4 @CoNi@C-N-800 can be reduced by 15.64 dB m 2 . These results suggest that this composite is a promising high-performance EMW absorbing material.
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