PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2026
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IF 7.9
Yunfei Liang,Jiangshi Zhang,Lei Fang,Linquan Tong,Pengcheng Liu
Interfacial water stabilization suppresses coal dust resuspension. • Hydrophilic headgroups govern the stability of coal dust interfacial water. • Sulfonate headgroups stabilize bound water and interfacial H-bond networks. • Mono- and multilayer water retention reduces ultrafine coal dust release. Interfacial water stability governs the durability of water-based suppression for respirable coal mine dust (RCMD), but its regulation by surfactant headgroup structure remains insufficiently understood. This study used underground deposited coal dust associated with respirable dust release and selected three dodecyl anionic surfactants with different hydrophilic headgroups to clarify how headgroup-regulated particle hygroscopicity affects interfacial water retention and dust release resistance. The results showed that surfactant treatment increased coal dust surface polarity and strengthened coal-water interactions, promoted water vapor adsorption and moisture retention. This process was affected by particle size, relative humidity, and temperature. Sodium dodecyl sulfonate (SDS) exhibited the strongest hygroscopic stability, the equilibrium moisture uptake increasing by 6.36% compared with raw dust. The modified samples retained a mesopore dominated pore structure, while smoother pore walls favored water migration. In the wind erosion test, SDS treated coal dust showed the highest wind erosion resistance at 8 h (86.06%), and its D50 increased to 2.178 times that of raw dust, indicating inhibited preferential release of ultrafine particles. Simulations showed that the sulfonate headgroup increased the peak net isosteric heat of adsorption to 20.25 kJ/mol, strengthened electrostatically dominated coal-water interactions, and stabilized the hydrogen bond network. Engineering verification further confirmed that SDS assisted spraying more effectively reduced respirable dust in high disturbance zones. These findings provide a scientific basis for supporting safer and cleaner industrial operations. Download: Download high-res image (281KB) Download: Download full-size image
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高影响因子
LANGMUIR
·
2026
·
IF 3.9
Xiangrong Wang,Weifeng Jiang,Liya Zhang,Liangyu Wang,Jiwei Cui,Aixin Song,Jingcheng Hao
Lightweight porous materials hold immense potential across industrial and biomedical applications, while conventional fabrication methods face challenges including energy-intensive drying processes, structural collapse, and limited mechanical strength. Herein, we report a universal strategy to engineer robust dry foams stabilized by metal–phenolic networks (MPNs) through a synergistic combination of high-speed mechanical foaming and freeze–thaw drying process. By introducing carboxymethyl chitosan (CMCS) and metal ions for rapid cross-linking, the foam templates can be stabilized to overcome the instability of conventional foams, enhancing solvent exchange efficiency and achieving hierarchical porosity. The integration of metal–phenolic coordination during the freeze–thaw process further reinforces the CMCS skeletal framework, yielding materials with exceptional mechanical integrity (<16% shrinkage and >80 kPa Young’s modulus) and ambient-drying compatibility. The resultant MPN-stabilized dry foams (MPN foams) exhibit excellent antibacterial activity and angiogenesis promotion for wound healing applications.
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高影响因子
Chinese Journal of Integrative Medicine
·
2023
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IF 2.9
Gu Jiao-jiao,Wei Ya-ru,Ma Ku,Wang Xiao-qi,Gao Huai-lin
Objective To investigate the effects of Tongxinluo (TXL) on thromboangiitis obliterans (TAO) and the underlying mechanisms. Methods Ninety male C57/BL6J mice were randomly divided into 6 groups according to a random number table: the sham group, TAO model group, Compound Danshen Tablet (CDT) group, and the high-, medium-, and low-dose TXL groups. All mice except the sham group were injected with sodium laurate (0.1 mL, 5 mg/mL) in the femoral artery to establish TAO mouse model. After modeling, mice in the sham and TAO model groups were intragastrically administered 0.5% (w/v) sodium carboxymethylcellulose, mice in the CDT group were intragastrically administered 0.52 g/kg CDT, and mice in the TXL-H, TXL-M, and TXL-L groups were intragastrically administered 1.5, 0.75, and 0.38 g/kg TXL, respectively. After 4 weeks of gavage, the recovery of blood flow in the lower limbs of mice was detected by Laser Doppler Imaging. The pathological changes and thrombosis of the femoral artery were observed by morphological examination. The expressions of tumor necrosis factor α (TNF-α) and inducible nitric oxide synthase (iNOS) in the femoral artery wall were detected by HE staining. Levels of thromboxane B2 (TXB2), 6-keto-prostaglandin F1α (6-keto-PGF1α), endothelin-1 (ET-1), interleukin (IL)-1β and IL-6 were measured using enzyme-linked immunosorbent assay (ELISA). Levels of activated partial thromboplastin time (APTT), prothrombin time (PT), thrombin time (TT) and fibrinogen (FIB) were detected by a fully automated biochemical analyzer. Results TXL promoted the restoration of blood flow in the lower limbs, reduced the area of thrombosis in the femoral artery, and alleviated the pathological changes in the femoral artery wall. Moreover, the levels of TXB2, ET-1, IL-6, IL-1β, TNF-α and iNOS were significantly lower in the TXL groups compared with the model group ( P <0.05 or P <0.01), while the level of 6-keto-PGF1α was significantly higher ( P <0.01). In addition, APTT, PT, and TT were significantly prolonged in TXL groups compared with the model group ( P <0.05 or P <0.01), and FIB levels were significantly decreased compared with the model group ( P <0.01). Conclusions TXL had a protective effect on TAO mice, and the mechanism may involve inhibition of thrombosis and inflammatory responses. TXL may be a potential drug for the treatment of TAO.
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高影响因子
CARBOHYDRATE POLYMERS
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2022
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IF 10.723
Yi Jiang,Shahid Ahmed Junejo,Xiangze Jia,Bin Zhang,Xiong Fu,Qiang Huang
Starch cryogel is a potential material for oil absorption. This study provided a facile and convenient polyelectrolyte-based preparation strategy of starch cryogel, in which the structural properties of the cryogel were regulated by amylose content and pre-freezing without long-time retrogradation. Sodium laurate was used as a guest model to form starch-fatty acid salt complex (polyelectrolyte). The amount of amylose content and sodium laurate added led more polyelectrolytes, significantly increased V-type crystallinity from 3.72 % to 22.40 % and complexing index from 4.32 % to 28.48 %. As the uniform pore structure improved the oil absorption ability of starch cryogel, the starch cryogel prepared by waxy maize starch followed by quick pre-freezing showed the highest specific surface area (9.87 m 2 /g) and oil absorption capacity (32.94 g/g). Our findings suggest that polyelectrolyte properties have great potential in the preparation of starch-based cryogels, which could be applied in the design of novel starch-based porous materials.
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ANALYTICAL LETTERS
·
2022
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IF 2.267
Hui Cao,Zixin Chen,Yanan Kong,Ziqi Wei,Tai Ye,Min Yuan,Jinsong Yu,Xiuxiu Wu,Liling Hao,Fengqin Yin,Fei Xu
Rapid dispersive liquid-liquid microextraction (DLLME) based on the solidification of a switchable hydrophilicity solvent (SHS) was established for the preconcentration of pyrethroid pesticides from grain prior to determination using high‐performance liquid chromatography (HPLC) with photodiode array (PDA). Lauric acid was selected to be the switchable hydrophilicity solvent due to its conversion between hydrophobic and hydrophilic forms and solidification at low temperature, thereby avoiding a time-consuming centrifugation step. The results show that the optimal conditions for pyrethroid pesticides included 30 mmol/L lauric acid, hydrochloric acid as the hydrogen donor, a 1:1.8 stoichiometric ratio of sodium laurate and hydrochloric acid, an extraction temperature of 50 °C, an extraction time of 8 min, and a solidification time of 3 min. Under the optimal conditions, this approach provided a high enrichment factor (308.4 to 330.2), a short pretreatment period of less than 15 min, and sensitive detection limits from 5 to 20 ng/g suitable for the analysis of food. The method was employed for the determination of pyrethroid pesticides in grain. The recoveries were 84.3% to 115.7%, and the relative standard deviation was less than 9.9%.
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CHEMICAL ENGINEERING SCIENCE
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2023
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IF 4.7
Xiaolai Zhang,Jiatao Zhao,Chen Chen,Haoyu Yuan,Yonghao Zhang,Yan He,Fei Wang
As one of the most efficient promoters for methane hydrate formation, SDS (sodium dodecyl sulfate) works mainly by causing the hydrates to grow upwards along the reactor sidewall. In this work, super-hydrophobic surface was constructed and adopted for methane hydrate formation, in the aim of revealing the promotion mechanism of SDS. Morphological observations showed that SDS led to violent fluctuation at the gas/liquid interface, which represented the unstable state of the gas/liquid interface during the initial hydrate growth process and reached stable via morphology transformation, either upward growth or outward diffusion, leading to the surface growth of methane hydrates. In-situ Raman Spectra revealed that the fluctuation structure was the combination of water, hydrate mass with cages minorly occupied by methane molecules, and methane hydrates; and with the continuation of the fluctuation phenomenon, the water percentage decreased, the hydrate mass increased and then transformed to methane hydrates gradually.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2021
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IF 4.539
Han Jia,Shaoyan Wang,Yingbiao Xu,Tingyi Wang,Lingyu Zhang,Jinyong Song,Xuehao Zhang,Lin Song,Haidong Jia,Hui Yan
Ionic liquids are regarded as the promising and efficient additives to use in various aspects of petroleum industry , especially in chemical EOR. In this investigation, three novel fatty acid ionic liquids (FAILs), methyltrioctylammonium octanoate ([N 8881 ][C 8:0 ]), methyltrioctylammonium laurate ([N 8881 ][C 12:0 ]) and methyltrioctylammonium palmitate ([N 8881 ][C 16:0 ]), were selected and evaluated for their performances in terms of surface/interfacial activity, temperature and salt resistances. The three FAILs could cause remarkable reduction of surface tension to ~30mN/m in their aqueous solutions, and the [N 8881 ][C 8:0 ] with the shortest anionic alkane chain exhibited the greatest surface activity among three FAILs. Then the size-match effect and intermolecular interaction were employed to explain the abnormal variations, which were confirmed by the control experiments using mixed surfactants and the molecular dynamics simulation . It was found that the binding energy in [N 8881 ][C 8:0 ] (−28.961 kcal/mol) was larger than that in [N 8881 ][C 16:0 ] (−22.942 kcal/mol), which should be responsible for their different surface activity. Moreover, the crude oil/water interfacial tension (IFT) could be decreased to the much level (4.9 ×10 −3 mN/m and 1.7 × 10 −2 mN/m) even at high-temperature conditions (80 °C) and at high-salinity conditions (100,000 mg/L), indicating the FAILs might be the ideal candidate for the EOR used surfactants with great temperature and salt tolerances. Meanwhile, the variations of IFT results further verified our proposed mechanism.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2021
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IF 4.539
Han Jia,Shaoyan Wang,Zhe Wang,Qiang Wang,Haidong Jia,Lin Song,Xuwen Qin,Fangning Fan,Zhe Li,Pan Huang
Ionic liquids (ILs) have been introduced as novel high-performance shale inhibitors. The inhibition performance and mechanism of the cation groups in ILs have been widely investigated, whereas the effects of the anionic groups in ILs on the inhibitory capacity have rarely been reported. In this work, a series of fatty acid-based ionic liquids (FAILs) with different anionic groups, methyltrioctylammonium octanoate ([N 8881 ][C 8:0 ]), methyltrioctylammonium laurate ([N 8881 ][C 12:0 ]), and methyltrioctylammonium palmitate ([N 8881 ][C 16:0 ]), were synthesized to evaluate their inhibition ability via the sodium bentonite (Na-Bent) immersion test, the linear swelling test, and the shale hot-rolling recovery test. Compared with the traditional inhibitor KCl (2 wt%), FAIL [N 8881 ][C 8:0 ] showed greater inhibition performance at a much lower concentration (0.1 wt%). The inhibition mechanism of FAILs was further analysed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), zeta potential measurements, and contact angle measurements. It was speculated that the best inhibition ability and thermal stability of [N 8881 ][C 8:0 ] should be attributed to the intensive interaction and the size-matching effect between cationic and anionic groups. The present study provided novel insight into the research and development of high-efficiency shale inhibitors.
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高影响因子
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
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2021
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IF 1.134
Xu JING,Hao-Yue XUE,Xin HUANG,Hui-Yuan LI,Xiao-Wen WANG,Li-Yan JIA
A simple, efficient and environmentally-friendly pretreatment technique was proposed for determination of alkylphenols (4- tert -octylphenol, nonylphenol and octylphenol) in drink samples using high performance liquid chromatography-fluorescence detection. In this approach, the extractants in the form of (green) medium-chain fatty acids were generated in situ in the Pasteur pipette and extractant droplets dispersed by CO 2 generated by an effervescent reaction. A demulsifier was then used to break up the emulsion and induce phase separation, thus avoiding the need for a time-consuming centrifugation step. Finally, the floating extractant droplets were collected through solidification. Under optimal conditions, a good linearity was obtained in the concentration range from 0.1 μg/mL to 10 μg/mL, with determination coefficients ranging from 0.997 to 0.999. The extraction recoveries varied from 75.8% to 94.4% and the limits of quantification were in the range of 1.55–2.30 μg/L. The developed approach had good prospects in detection of alkylphenols in mineral water, tea drink, carbonated drink and Baijiu.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2020
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IF 3.99
Yan-Qing Nan,Jian-Xiu Liu,Sha-Sha Zhang,Deng-Jing Chen,Qiu-Xiang Ye,Cheng Yuan,Li-Sheng Hao
A method to construct photo-responsive wormlike micellar systems with high photo-responsive efficiency and strong photo-responsive ability and reduced impact on the environment by mixed cationic/anionic surfactants and mixed photo-sensitive additives has been proposed. For this purpose, a cleavable cationic ester-containing gemini surfactant, N , N ’-bis(2-(dodecanoyloxy)ethyl)- N , N , N ’, N ’-tetramethyl-1,3-propane diammonium dibromide (C 12 DEG 3 ), and five anionic biocompatible carboxylate surfactants, have been selected. The mixed photo-sensitive additives are composed of sodium trans -ortho-methoxycinnamate ( trans -NaOMCA) and sodium trans -cinnamate ( trans -NaCA). The mixed cationic/anionic surfactants are superior to the single cationic surfactant C 12 DEG 3 in constructing UV light-responsive wormlike micellar systems due to their stronger self-assembly ability. The molecular structure of anionic surfactant, such as the length of hydrophobic tail, the introduction of the N-methylated amide group between the hydrophobic tail and carboxylate headgroup, and the number of hydroxyl group in bile salts, is important factor influencing the self-assembly ability of the mixed systems. For single C 12 DEG 3 or the mixed cationic/anionic surfactants, the mixed photo-sensitive additives have the advantages of both trans -NaCA and trans -NaOMCA. The fast reaction rate of the trans -to- cis photoisomerization of NaOMCA leads to the high photo-responsive efficiency of the wormlike micellar systems. The addition of t rans -NaCA promotes the growth of wormlike micelles and leads to larger difference between viscosities before and after UV irradiation, demonstrating higher photo-responsive ability. The experimental results reveal that the UV light induced trans -to- cis isomerization of NaOMCA is the main reason inducing the microstructural transition from wormlike micelles to coexistence of spherical and short rodlike micelles and thus causing reduction in shear viscosities by 3–4 orders of magnitude.
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Food Science & Nutrition
·
2020
·Vol. 8
·期 7
·3590-3601
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IF 1.797
Jun Yang,Ting Peng,Jiyong Huang,Guohua Zhang,Jiaheng Xia,Maomao Ma,Danwen Deng,Deming Gong,Zheling Zeng
Drug-induced liver injury (DILI) is one of the common adverse effects of drug therapy, which is closely associated with oxidative stress, apoptosis, and inflammation response. Medium-chain fatty acids (MCFA) were reported to relieve inflammation and attenuate oxidative stress. However, little has been known about the hepatoprotective effects of MCFA in DILI. In the present study, acetaminophen (AP) and rifampicin (RFP) were used to establish DILI models in LO2 cells, and the cytoprotective effects of MCFA on hepatocellular injury were investigated. Results showed that the optimal condition for the DILI model was treatment with 10 mM AP or 600 µM RFP for 24 hr. LCFA treatment markedly reduced the cell viability and increased the activities of alanine aminotransferase, aspartate aminotransferase, and lactate dehydrogenase. Meanwhile, LCFA treatment aggravated cell apoptosis, mitochondrial dysfunction, and oxidative stress. The mRNA and protein expression levels of inflammatory cytokines (IL-1β and TNF-α) were significantly elevated by LCFA. In contrast, MCFA treatment did not significantly affect cell viability, apoptosis, oxidative, stress and inflammation, and it did not produce the detrimental effects on DILI models. Therefore, we proposed that MCFA may be more safe and suitable than LCFA as nutrition support or the selection of daily dietary oil and fat for the patients with DILI.
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高影响因子
LANGMUIR
·
2021
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IF 3.882
Xiao Xiao,Zhirui Xu,Wenkai Wang,Siyuan Sun,Yan Qiao,Lingxiang Jiang,Yun Yan,Jianbin Huang
Recent years have witnessed a growing interest in the design of enzyme-responsive molecular assemblies that hold appealing applications in the fields of disease-related sensing, imaging, and drug delivery. Cyclodextrins (CDs) are amylase-cleavable host molecules that can associate with surfactants, alkanes, alkyl amines, fatty alcohols, and aromatic compounds to form diverse supramolecular structures. In this work, we report a versatile supramolecular platform to construct enzyme-responsive nanosystems via host–guest interactions, in which complexation between CDs and surfactants eventually leads to the formation of a variety of nanostructures such as vesicles and microtubes. These supramolecular structures are capable of loading water-soluble molecules or functional nanoparticles, which can be actively released on-demand in the presence of α-amylase. This universal strategy to fabricate enzyme-responsive supramolecular systems was further demonstrated with a range of surfactants with anionic, cationic, and nonionic headgroups. Our results highlight a versatile platform for the exploration of biologically responsive self-assembly with potential applications as controlled-release systems and microrobots.
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危险品化学品经营许可证（带存储）