MEDICINAL CHEMISTRY RESEARCH
·
2020
·Vol. 29
·期 10
·1867-1873
·
IF 1.783
Yang Xin-Bin,Huang Yu
The water-soluble sulfated derivatives, apigenin-8-sulfonate sodium (AS) and apigenin-3′, 8-disulfonate sodium (ADS) derived from parent apigenin (AP), were synthesized and characterized by infrared (IR) spectra, hydrogen nuclear magnetic resonance ( 1 H NMR), carbon nuclear magnetic resonance ( 13 C NMR), high-resolution mass spectra (HRMS), and elemental analysis. The mice model of hepatotoxicity induced by d -Galactosamine ( d -GalN) was used to evaluate the hepatoprotective effects of AP, AS, and ADS. The results indicated that AP, AS, and ADS could reduce the level of serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), and hepatic malondialdehyde (MDA) induced by d -GalN, and restore the activities of antioxidant enzymes superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and catalase (CAT) toward normal levels. The histological results also suggested that AP, AS, and ADS could alleviate liver toxicity. The possible mechanisms could be ascribed to the protection role of AP, AS, and ADS, which kept hepatic cells from oxidative damage and maintain intracellular antioxidant enzyme activity. These findings uncovered that AP, AS, and ADS were able to protect liver from d -GalN-induced acute damage, and AS was the most potent hepatoprotective drug among the three compounds.
研究领域:
药理学
·
肝病学
·
生物化学
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Han Jia,Juan He,Yingbiao Xu,Tingyi Wang,Lingyu Zhang,Bowen Wang,Xincan Jiang,Xu Li,Xingyuan Zhang,Kaihe Lv
The surfactant assisted nanoparticle stabilized emulsions exhibit the wide potential application and attract more and more attention. In the present study, the flake-like hydrophilic AlOOH nanoparticles were employed to stabilize Pickering emulsions with the assist of slightly amphiphilic sodium benzenesulfonate (SBS) molecules. The measurements of FTIR spectra , three-phase contact angle, zeta potential and Z-average diameter adequately testified the successful adsorption of SBS on AlOOH nanoparticles. Both slightly amphiphilic SBS and highly hydrophilic AlOOH nanoparticles could hardly stabilize emulsions, whereas the SBS modified AlOOH nanoparticles exhibited distinguished emulsifying capacity, which was reflected via the Turbiscan Stability Index and the reference values of backscattered light intensity . Batch adsorption experiments were conducted and the adsorption data was better fitted to the Langmuir model, suggesting that SBS could form monolayer adsorption on AlOOH nanoparticles. Confocal laser scanning microscopy and rheological measurements demonstrated that the functionalized AlOOH nanoparticles could spontaneously adsorb at the oil/water interface to form an interfacial film and generate a three-dimensional network structure in the continuous phase to effectively prevent droplet coalescence in normal and harsh conditions. Furthermore, SBS/AlOOH stabilized O/W emulsions presented significant displacement performance (tertiary oil recovery of 18.87%) in core flooding experiments. Microscopic visualization tests showed that the emulsions could block high permeability channels and enlarge the sweep area. This study opens up the possibility of adopting low surface-active molecules and hydrophilic nanoparticles to stabilize Pickering emulsions for enhanced oil recovery (EOR).
研究领域:
石油工程
·
界面化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
FUEL PROCESSING TECHNOLOGY
·
2023
·
IF 7.5
Xiaoyu Lin,Wenbin Ding,Gaojie Shi,Bochao Yan,Suping Zhang
Lignosulfonate (LS), as the most abundant technical lignin, is hard to depolymerize due to highly condensed structure. To overcome the limitation, in this work, NiMoO 4 /Al 2 O 3 catalyst with regulated acidity/hydrogenation activity was developed for highly efficient LS depolymerization . Results show that the performance of NiMoO 4 /Al 2 O 3 was improved by sulfur migration. Meanwhile Ni Mo alloy contributed to the good stability during LS depolymerization . The NiMoO 4 /Al 2 O 3 was favor for the intermediate compounds production by the cleavage of C O and C C bonds, which intermediate compounds were eventually hydrogenated to monomers by highly active MoS 2 . Also, NiMoO 4 /Al 2 O 3 and sulfonic groups play a synergistic role in the sulfur migration (only 39.1% bio-oil yield obtained by MoS 2 /Al 2 O 3 ). After reacting at 300 °C for 4 h, 81.7% of bio-oil yield with 95% desulfurization rate were obtained. Thus, it was demonstrated that an inexpensive catalyst was developed which can efficiently catalyze the depolymerization of lignosulfonate.
研究领域:
化学工程
·
可再生能源
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Mohammad Ziaur Rahman,Xin Wang,Wei Cai,Lei Song,Bin Fei,Yuan Hu
Creating durable flame retardancy, enhanced mechanical performance, and hydrophilic polyamide 6.6 (PA6.6) textiles via cost-effectiveness from sustainable renewable sources is a considerable challenge. This study introduces a pretreatment process involving the application of sodium lignosulfonate (LS) to the surface of PA6.6 fabrics, thereby enhancing their hydrophilic and flame-retardant properties. Subsequently, a layer-by-layer (LbL) nanocoating treatment is employed, utilizing renewable polyelectrolytes—chitosan (CS), LS, and poly (sodium phosphate) (PSP)—to create 8-bilayer (BL) and 4-quarda layer (QL) structures that further improve the hydrophilicity and durable flame resistance of PA6.6 fabrics. The combined LS-modified and LbL coatings notably increased the limiting oxygen index (LOI) values from 19.5 % to 22.5 %, eliminated melt dripping, and secured a V -1 rating in the vertical burning (UL-94) tests. Moreover, the treated fabrics exhibited a 43 % reduction in the peak heat release rate (PHRR) and a lower fire growth rate (FGR) of 0.84 W/g·s, with a significant increase in char yield% in both air and nitrogen (N 2 ) atmospheres. A cross-linked network structure is responsible for the superior hydrophilicity, enhanced tensile strength, and fabric softening properties. The self-crosslinking of sulfur-containing radicals with amide units ensures an anti-dripping performance that can withstand up to 30 home laundering cycles, demonstrating remarkable washing durability. However, a convincing approach has been developed for sustainable and high-performance materials for the textile industry, and a simple LbL technique using renewable polyelectrolytes that have traditionally been utilized in water treatment and food processing has been developed.
研究领域:
材料科学
·
纺织工程
·
可持续发展
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2017
·
IF 3.648
Qiaojun Lu,Ming Jiang,Xiaoshu Wang,Guobo Huang,Hao Chen,Aiguo Zhong,Cuihong Ye,Hong Chen,Rongrong Li
The solubility of sodium 1-naphthalenesulfonate and sodium 2-naphthalenesulfonate in pure organic solvents of acetone, 1,4-dioxane, cyclohexanone , ethanol, ethyl acetate and isopropanol were measured by using the isothermal saturation method at temperature ranging from (278.15 to 323.15) K under 101.3 kPa. The mole fraction solubility of sodium 1-naphthalenesulfonate and sodium 2-naphthalenesulfonate in the selected pure solvents increased with the increase in temperature. The maximum mole fraction solubility of sodium 1-naphthalenesulfonate was observed in ethanol (2.767 × 10 − 3 at 323.15 K), followed by that in 1,4-dioxane (2.028 × 10 − 3 at 323.15 K), cyclohexanone (1.522 × 10 − 3 at 323.15 K), isopropanol (1.094 × 10 − 3 at 323.15 K), acetone (5.997 × 10 − 4 at 308.15 K) and ethyl acetate (3.111 × 10 − 4 at 323.15 K); For sodium 2-naphthalenesulfonate + solvents systems, the maximum mole fraction solubility was observed in ethanol (1.178 × 10 − 3 at 323.15 K), followed by that in 1,4-dioxane (1.027 × 10 − 3 at 323.15 K), ethyl acetate (6.197 × 10 − 4 at 323.15 K), cyclohexanone (3.233 × 10 − 4 at 323.15 K), isopropanol (1.058 × 10 − 4 at 323.15 K) and acetone (9.683 × 10 − 5 at 323.15 K). The measured solubility data were correlated and calculated by using the modified Apelblat equation, λh equation and NRTL model. The calculated solubilities agreed better with the experimental values by using the modified Apelblat equation than the other two models. Moreover, the mixing properties including the mixing Gibbs energy , mixing enthalpy , mixing entropy, activity coefficient at infinitesimal concentration ( γ 1 ∞ ) and reduced excess enthalpy ( H 1 E , ∞ ) were calculated by NRTL model.
研究领域:
物理化学
·
材料科学
✓ 已验证
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2025
·
IF 5.1
Lei Tan,Zengjin Fu,Jing Wang,Wenyue Jiao,Tianwen Huang,Yan Hao,Yicheng Wang,Tingrui Lin
In this paper, poly(sodium styrene sulfonate) (PSS) hydrogel was synthesized following a one-step free-radical polymerization with N, N -methylene-bis-acrylamide (MBA) as a cross-linker. La(III) and Ce(III) were effectively removed from acidic aqueous solutions by using PSS hydrogel. FTIR, TGA, XRD, SEM, zeta potential analysis, and XPS were used to characterize the morphology and microstructure of PSS hydrogel. By varying pH, adsorbent dose, contact time, initial La(III) and Ce(III) ions concentrations, and interfering ions, the adsorption behavior of La(III) and Ce(III) ions on PSS hydrogel was studied. According to the experimental data, PSS hydrogel exhibited adsorption capacities above 200 mg·g −1 for La(III) and 180 mg·g −1 for Ce(III) over a wide pH range. Furthermore, adsorption data was simulated using pseudo-first order, pseudo-second order and intra-particle diffusion kinetic equations. For the description of adsorption equilibrium, Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich isothermal models were used. According to the results, the Langmuir isotherm equation provided the best fit. Based on the Langmuir isotherm equation, the maximum absorption capacities of La(III) and Ce(III) by PSS hydrogel was 241.0 and 223.7 mg·g −1 , respectively. According to FTIR and XPS analysis, sulfonic acid groups were involved in the adsorption of La(III) and Ce(III) ions. And ion exchange and complexation were the main mechanisms involved. Finally, reusability tests reveal that the PSS hydrogel can be reused 13 times without losing effectiveness.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
TENSIDE SURFACTANTS DETERGENTS
·
2022
·Vol. 59
·期 3
·221-230
·
IF 1.058
Fengli Gong,Hong Xu,Jinxiang Dong
Sodium oxalate (Na 2 C 2 O 4 ) is an excellent phosphorus-free agent, but in sodium oxalate-containing detergents with sodium dodecylbenzene sulfonate (SDBS) and sodium carboxymethyl cellulose (CMC), significant ash deposition occurs on cotton fabrics. SDBS is the main anionic surfactant in modern detergents and cotton fiber is the most commonly used textile fiber. In this study, sodium lignosulfonate (LS) was investigated for its ability to prevent redeposition in SDBS-Na 2 C 2 O 4 -CMC-LS formulations. The effects of LS on ash content, whiteness, optimum washing temperature, calcium oxalate morphology, zeta potential and surface tension were carefully analyzed. The results showed that the addition of LS significantly improved the prevention of ash deposits on cotton fibers. The ash content was less than 0.46% and a small amount of particles were scattered on the cotton fibers. LS showed good dispersibility but had little effect on the washing power and zeta-potential.
研究领域:
材料科学
·
纺织工程
·
表面化学
✓ 已验证
DOI
高影响因子
CELLULOSE
·
2024
·Vol. 31
·期 14
·8787-8803
·
IF 4.9
Wang Siqi,Yang Yueqi,Wang Chang,Jiao Yunhong,Wang Chunzheng,Ma Haiyun
In modern society, with the rapid increase in energy consumption, there is a growing interest in the effective utilization of bio-resources. Biomass aerogels have considerable academic research value due to their eco-friendly attributes and renewable nature. In this work, sodium alginate (SA) and sodium lignosulfonate (SLS) are employed as the matrix, which are dually cross-linked with Ca 2+ and bis[tetrakis(hydroxymethyl)phosphonium] sulfate (THPS). Subsequently, a well-formed aerogel (CA-SP) is obtained through the lyophilization process. The formed dual crosslinking network and the “egg-box” structure endow the CA-SP aerogel with superior flame retardancy and thermal insulation properties, as evidenced by a limiting oxygen index value of 40.8%, achievement of the UL94 V-0 rating and low total heat release (1.35 MJ·m −2 ). Moreover, the THPS simultaneously endows the SA-SP aerogel with excellent flame retardancy and antimicrobial effect. The exceptional flame retardancy, smoke suppression capabilities, and antimicrobial effects of the CA-SP aerogel expand its prospects for application.
研究领域:
材料科学
·
生物工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Hepeng Zhou,Fanxin Xie,Xianping Luo,Boyuan Zhang,Siqi Yang,Yongbing Zhang
In this paper, the effect of benzyl arsenic acid (BAA) and sodium oleate (NaOl) on mineral flotation was studied for the first time from the perspective of the difference of solidophilic atom. Compared with NaOl, the solidophilic O atoms of BAA had stronger electronegativity and the bonding strength of As-O was lower than that of C O. Thus, when BAA adsorbed on the mineral surfaces, the bonding strength of the solidophilic O atoms with the adsorption sites would be higher. The DFT calculation of adsorption model indicated that after activation by Ca(OH) + , the adsorption capacity of BAA on spodumene surface was significantly higher than that of NaOl, while the adsorption strength on feldspar was similar to that of NaOl. This result was corroborated by flotation experiment and adsorption capacity test. Thus, compared with NaOl, BAA could separate and recover spodumene more effectively.
研究领域:
矿物加工工程
·
材料科学与工程
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES COMMUNICATIONS
·
2020
·
IF 4.915
Ronghua Yu,Jie Liu,Doudou Gao,Yanhui Wang,Xin Wen,Tao Tang
To improve the flame retardancy of polymer nanocomposites , a grafting strategy to modify carbon black nanoparticles by grafting sodium sulfonate (CB- g -SS) was developed in polycarbonate (PC) system. The grafting reaction for CB- g -SS was evaluated by FTIR, XPS and TGA , respectively. Furthermore, PC/CB- g -SS nanocomposites were prepared, and the striking effect of CB and SS on improving the flame retardancy of PC was investigated. With only 1 wt% of CB- g -SS, the PC nanocomposites exhibited a high limiting oxygen index of 33.1%, and V-0 rating in UL-94 test, as well as significant decrease on the peak of heat release rate (PHRR) by 51.6% in cone calorimeter test. The flame retardancy mechanism was also discussed, which was ascribed to the catalytic carbonization of SS on CB surfaces for promoting the formation of interconnected carbon layer. Thus, this work provides a useful and effective method for preparing high-performance PC nanocomposites.
研究领域:
材料科学
·
高分子化学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Haiyang Zhang,Hongyan Zhang,Zhenhong Jia,Chu Chen,Chen Yang,Qiaoya Dou,Xudong Li,Xiujuan Ma,Pengfei Ding
Organic-inorganic hybrid materials hold great application prospects in electronic devices such as humidity sensors due to their unique interfacial effects and synergistic interactions. However, relatively few studies have been conducted on the sensitization mechanism of organic–inorganic hybrid materials. Herein, we report a high performance humidity sensor based on an organic-inorganic hybrid material of poly(sodium 4-styrenesulfonate)-modified amino-functionalized SnO 2 (PSS-SnO 2 ). By employing the PSS surface modification strategy, the content of sulfonic groups (-SO 3 H) and oxygen vacancies on the surface of SnO 2 was significantly increased, which effectively enhanced its humidity sensing performance. The results reveal that the PSS-SnO 2 sensor has a higher response (18421.6), lower humidity hysteresis (1.8% RH) and faster response/recovery (2.8/5.7 s) compared to the SnO 2 sensor. Experimental analysis and density functional theory (DFT) results show that the presence of oxygen vacancies and -SO 3 H effectively promotes the dissociation of water molecules, resulting in more H + conduction on the surface of SnO 2 , which improves the sensitivity and response time of the sensor. Furthermore, the PSS-SnO 2 humidity sensor realizes visual monitoring of plant growth environments, which shows the potential in the field of smart agriculture.
研究领域:
材料科学
·
农业科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2018
·
IF 2.829
Ling Zhang,Changming Zhao,Yulian Jiang,Yue Wang,Wensheng Yang,Tiexin Cheng,Guangdong Zhou
The effect of sodium dodecyl benzene sulfonate (SDBS) on morphology and structure of calcium silicate hydrate (CSH) prepared via precipitation in solution were investigated by XRD , FT-IR and SEM techniques. The formation mechanism of spherical shell of CSH was also discussed. The results suggested that different concentrations of SDBS affect differently the structure and morphology of CSH. When the SDBS concentration was less than the critical micelle concentration (CMC), the agglomeration among CSH particles reduced, the degree of order of CSH increased and the polymerization degree of Si-O decreased. When the SDBS concentration was greater than CMC, the spherical micelles were fabricated in aqueous solution, which induced CSH to form a spherical structure in the shape of spherical micelle rather than produce a layered CSH under the normal condition. After centrifugation and vacuum drying procedures, internal micelles of CSH spherical particles disappeared and turned into spherical shell structures. This experiment provides a reliable method for the preparation of CSH with specific morphology and size, which can simplify experimental conditions and increase the possibility of its application in the field of drug delivery.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）