JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
·
2024
·
IF 2.6
Zhu Jie,Zhang Hua-nan,Wu Jia-kai,Li Fei-fei,Liu Yu-qing,Ning Er-juan,Yu Li-qin,Liang Shen
Camelina sativa oil (CSO) and Semen Ziziphi Spinosae oil (SZSO) are functional oils that have beneficial effects on brain health. This study evaluated the sedative and hypnotic effects of vegetable oils with various n − 6/n − 3 polyunsaturated fatty acids (PUFA) ratios and ɑ-linolenic acid (ALA) contents to mice. The n − 6/n − 3 PUFA ratios of CSO (CSO:SZSO = 1:0, 1.8 g/kg), SZSO (CSO:SZSO = 0:1, 1.8 g/kg), CSO-SZSO-L (CSO:SZSO = 1:1, 1.8 g/kg), and CSO-SZSO-H (CSO:SZSO = 1:1, 3.6 g/kg) were 0.51, 140, 1.69, and 1.69, respectively. The doses of ALA administered to mice with p-chlorophenylalanine-induced insomnia were approximately 0.64, 50 × 10 –4 , 0.32, and 0.64 g/kg, respectively. The mice were administered CSO, SZSO, and a low-dose combination of CSO and SZSO for seven days with no obvious hypnotic effects. However, the administration of a high-dose combination of CSO and SZSO significantly prolonged sleep duration in mice with induced insomnia and inhibited the serum levels of corticotropin-releasing hormone, adrenocorticotropic hormone, and cortisol. Interestingly, there were no significant effects on the structure and function of the hippocampal tissue. The results indicated that the anti-insomnia effects of these vegetable oils were positively correlated with a low n − 6/n − 3 PUFA ratio and the absolute amount of ALA.
研究领域:
营养学
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神经科学
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药理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
BIORESOURCE TECHNOLOGY
·
2014
·
IF 5.039
Cuiping Chen,Wenjun Zhou,Daohui Lin
N-nitrosodimethylamine (NDMA) is an emerging carcinogenic disinfection by-product in water environment. Biochars utilized as sorbents for the removal of NDMA from aqueous solution, and the sorption characteristics and mechanism were investigate. Biochars were prepared from bamboo, rice straw and wood sawdust at 300–700 °C. The pseudo-second-order model provided the best fit for the sorption kinetics of NDMA onto biochar and the sorption isotherms were described best with the Slips model. Biochar produced at 500 °C removed NDMA from aqueous solution relatively efficiently, and the bamboo char demonstrated the best sorption potential among the three types of biochars. Solution chemistry such as pH and metal ions did not show obvious effect on NDMA removal. Three sorption mechanisms are suggested for NDMA sorption onto biochars, H-bond attraction between N O and the O-containing moieties, hydrophobic force between CH 3 and the ordered graphitic structure, and partition process of NDMA into the non-carbonization part of biochar.
研究领域:
环境科学
·
化学工程
✓ 已验证
DOI
PubMed
高影响因子
iScience
·
2024
·
IF 4.6
Jielin Huang,Jie Wang,Haonan Duan,Li Dong,Songsong Chen,Junping Zhang,Xiangping Zhang
Acidic and basic sites of catalysts are essential for CO 2 capture and activation. In this work, Zr, N-ZnO/ZnAl-LDH-IL composites in ionic liquid and methanol systems were fabricated, and applied to catalyze the synthesis of ethylene carbonate (EC) from ethylene glycol (EG) and CO 2 with about 4.76 mmol EC g Cat. −1 h −1 . The composites showed more strong basic sites due to the effective induction of reactive groups on the catalyst surface by Zr doping, resulting in an increase of pyridinic-N groups from 5.48% to 22.25%. More C atoms adjacent to pyridinic-N as strong basic sites was conducive to the activation of CO 2 and EG. In addition, the possible catalytic pathway and mechanism of the composites for synthesizing EC as well as the doping of La, Fe, Ce, and Cu were also investigated, which provides an effective strategy for regulating the acid-base centers on the catalyst surface through ionic liquids and methanol solvents.
研究领域:
催化化学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2025
·
IF 6.2
Yuyang Zhang,Tianjiao Han,Lan Zhang,Shuai Yun,Yue Yuan,Xiaoqin Wang,Linjuan Huang,Zhongfu Wang,Yu Lu
Goat lactoferrin is an N-glycoprotein, and its glycan moieties are essential for its biological activity. However, the structures of these glycans, particularly the sialylated isomers with α-2,3- or α-2,6-linkages, remain poorly characterized. Utilizing online hydrophilic liquid chromatography-tandem mass spectrometry, our study characterized N-glycans in goat lactoferrin across different lactation stages, and the putative structures of the 86 N-glycans of goat lactoferrin were presented, including 53 previously undetected ones. The content and variety of N-glycans decreased from colostrum to mature milk, with transitional milk exhibiting the highest levels of neutral and high-mannose N-glycans. Colostrum was particularly rich in fucose- and sialylated N-glycans, especially those with α-2,6-linkages. Notably, the α-2,6-linked sialylated N-glycan H5N4F1A1-1 was 7.09-fold and 12.85-fold more abundant in colostrum compared to transitional and mature milk, respectively. These findings provide valuable insights into the structure of lactoferrin and could facilitate the development of functional goat milk products.
研究领域:
生物化学
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营养学
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食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Long Li,Yan Wu
This study reports a strategy for constructing highly efficient single-atom photocatalysts through the formation of Ni–N chemical bonds. By anchoring Ni single atoms on nitrogen-doped ZnIn2S4 (N-ZIS), we created a localized charge region that enables directed interfacial charge transfer. The newly formed Ni–N bond plays dual roles of significantly enhancing charge carrier separation and prolonging their lifetime, and serving as an efficient electron transfer pathway from N trap states to Ni active sites. Combined experimental characterization and density functional theory (DFT) calculations confirm the unique stabilizing effect of single Ni atoms in the N-ZIS matrix and elucidate the charge transfer mechanism through Ni–N bridges. The optimized 5%Ni–N30-ZIS photocatalyst exhibits exceptional hydrogen evolution performance, surpassing most previously reported ZIS-based systems. This work highlights the crucial importance of precise control over interfacial chemical bonding at the molecular level for achieving efficient spatial charge separation in inorganic photocatalysts, providing insights for the design of high-performance photocatalytic materials.
研究领域:
光催化
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材料科学
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纳米技术
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能量转换
·
无机化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2019
·
IF 6.044
Xuan Tang,Haidong Xu,Yuqing Shi,Mingwei Wu,Hongru Tian,Jie Liang
The porous antimicrobial starch particles containing N-Halamine functional groups (PST-MBA-Cl particles) were synthesized by a crosslinking polymerization between starch (ST) and N, N' -methylenebisacrylamide (MBA), and then a chlorination of amide groups of MBA . The synthetic process used only water as the solvent and was environmentally friendly. The results showed that under the optimal preparation conditions, the as-synthesized PST-MBA-Cl particles could have a Cl + % of 8.60 %. Antimicrobial tests showed that PST-MBA-Cl particles had very powerful antimicrobial efficacy against both Staphylococcus aureus and Escherichia coli and could completely kill Staphylococcus aureus with a concentration of 2.1 × 10 6 CFU/mL and Escherichia coli with a concentration of 5.6 × 10 6 CFU/mL within a contact time of one minute. Furthermore, the N-Halamine functional groups of PST-MBA-Cl particles also showed excellent stability under storage and reproducibility. Therefore, the as-synthesized PST-MBA-Cl particles will have potential applications in water disinfection.
研究领域:
生物材料学
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环境科学
·
微生物学
✓ 已验证
DOI
高影响因子
FUEL
·
2022
·
IF 8.035
Jiaxiu Guo,Ting Shen,Juan Liang,Shulin He,Yue Jing,Yinghao Chu,Wanglai Cen
In this paper, an N -doped BiOCl photocatalyst was prepared and systematically characterized. The results showed that N doping does not change the crystal phase of BiOCl but changes the surface morphology of BiOCl nanosheets and increases specific surface area. N -doped BiOCl broadens the light absorption region, narrows the band gap and promotes the separation of the photoexcited carriers. N could be adsorbed on the Bi or to replace Cl atom in the BiOCl lattice, causing the generation of intermediate energy levels in the band gap of N -BiOCl including N 2p-Cl 2p hybrid states, N 2p-O 2p hybrid states or N 2p state. N -BiOCl achieves about 60% removal efficiency of NO under all-light irradiation and exhibits favorable stability and recyclability. The presence of some H 2 O in the reaction system promotes the photodegradation of NO, while O 2 greatly affects the efficiency of NO removal. Moreover, N doping promotes the formation of •O 2 − and •OH on N -BiOCl photocatalyst under all-light irradiation, resulting in the enhancement of photocatalytic oxidation of NO to NO 3 – . NO could be adsorbed on the surface of N -BiOCl or oxidized into NO 2 – under darkness and further oxidized into NO 3 – under all-light irradiation. However, the accumulation of the final product on the catalyst surface results in a decrease in photoactivity.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
·
IF 19.503
Dan Xu,Ruirui Liu,Jianfeng Li,Huacheng Zhao,Jiantai Ma,Zhengping Dong
Transfer hydrogenation reactions using non-noble metal-based nanocatalysts are extensively attractive due to their low-cost and green reaction conditions. But construction of such catalysts with maximum metal atom efficiency and high catalytic activity is still a challenging research goal. Here, atomically dispersed Co catalysts with Co-N 4 active sites were fabricated, which builds a bridge for transfer hydrogenation between nitroarenes and saturated N-heterocycles in aqueous solution. The TOF value of the transfer hydrogenation reaction is much higher than nanoparticle catalyst for this reaction. Density functional theory (DFT) calculations and control experiments reveal that the excellent performance origins from the Co-N 4 sites, which combines the dehydrogenation of 1,2,3,4-tetrahydroquinoline with hydrogenation of nitrobenzene in one-pot. This work not only has an in-depth understanding of active sites but also shows a unique activity to the challenging, highly efficient, and green transfer hydrogenation reaction.
研究领域:
催化化学
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材料科学
·
理论化学
✓ 已验证
DOI
高影响因子
Chemistry-An Asian Journal
·
2016
·Vol. 11
·期 24
·3528-3533
·
IF 4.592
Shi Huang,Wenquan Zhang,Tianlin Liu,Kangcai Wang,Xiujuan Qi,Jiaheng Zhang,Qinghua Zhang
Graphical Greener rocket fuels : A series of N -alkylimidazole borane compounds has been synthesized, which display hypergolic reactivity with the oxidizer of white fuming nitric acid. Compared with popular hypergolic ionic liquids, these fuels have the advantages of low viscosity and cost-effectiveness, and easily scaled-up production. Over the past few decades, toxic and highly volatile hydrazine derivatives have been the main fuel choices for liquid bipropellants, especially in traditional hypergolic rocket engines. The search for new hypergolic fuels as replacements for hydrazine derivatives is of great interest to researchers. In this study, a series of N -alkylimidazole borane compounds has been synthesized and characterized. Interestingly, these compounds display promising applications as potential hypergolic fuels owing to their excellent physiochemical properties including low melting points, high thermal stability, low viscosities, and unique hypergolic reactivity. Compared with popular hypergolic ionic liquids, the cost-effective and scaling-up advantages of these materials highlight their promising potential as high-performance fuels in liquid bipropellant formulations.
研究领域:
化学
·
航空航天工程
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Qian Liu,Changdi Wang,Jianxiang Wang,Xiangjie Cui,Xingrong Zhang,Ruiyang Zhao,Jishu Han,Lei Wang
The development of efficient and stable composite photocatalysts is crucial for advancing the field of photocatalytic hydrogen production. In this paper, the Co 0.5 CuP/Cd 0.9 Co 0.1 S composite photocatalyst was synthesized by the template etching method and the in-situ growth method. The Co 0.5 CuP was tightly anchored on the surface of hollow structure Cd 0.9 Co 0.1 S nanospheres. The hydrogen production efficiency of the Co 0.5 CuP/Cd 0.9 Co 0.1 S composite photocatalyst was enhanced by adjusting the doping proportion of cobalt and the loading quantity of Co 0.5 CuP. Meanwhile, a p-n heterojunction was formed between Co 0.5 CuP and Cd 0.9 Co 0.1 S, which enhanced the separation of photoinduced charge carriers and further boosted the efficiency of photocatalytic hydrogen production. The results showed that the photocatalytic hydrogen evolution efficiency of Co 0.5 CuP/Cd 0.9 Co 0.1 S could reach 9.64 mmol·g −1 ·h −1 . In addition, the photocatalytic reaction mechanism of the Co 0.5 CuP/Cd 0.9 Co 0.1 S composite photocatalyst was inferred based on the photoelectrochemical test and density functional theory calculation. This approach pioneers a novel pathway for the preparation of heterojunction photocatalysts by the combination of transition metal phosphide and hollow multi-metal sulfides.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Catalysts
·
2023
·Vol. 13
·期 5
·857
·
IF 3.9
Qianqian Zhou,Yanxin Chen,Haoyan Shi,Rui Chen,Minghao Ji,Kexian Li,Hailong Wang,Xia Jiang,Canzhong Lu
Cu2O is a p-type direct bandgap semiconductor with a band gap of 2~2.2 eV, which has excellent visible light absorption and utilization. However, slow charge transfer and poor stability hinder its practical application. In this paper, a facile electrodeposition approach successfully synthesized the heterostructure of p-Cu2O and n-Cu2O. The protective layer of n-Cu2O on the surface of p-Cu2O nanoparticles forms a p/n heterojunction. Due to the p/n heterojunction, the PEC performance of p/n-Cu2O is enhanced significantly. The charge separation efficiency of photogenerated electron/hole pairs in p/n-Cu2O is greatly improved. Therefore, p/n-Cu2O shows superior photoelectrochemical (PEC) CO2reduction reaction (CO2RR) efficiency when used as a photocathode.Keywords:Cu2O;electrodeposition;p/n heterojunction;carbon dioxide reduction reaction
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Kun Li,Chengjie Duan,Weitao Mao,Dongliang Wang,Yumeng Liang,Wenbo Ye,Guangke He,Xiang Liu
A direct and efficient synthesis of N-methyl-1,2,3,4-tetrahydroquinolines (MTHQs) is achieved through the one-pot reductive N-methylation of quinolines. The SnOx-decorated Pt/Al2O3 (Pt-SnOx/Al2O3) catalyst proves to be highly effective in the transformation from quinolines to MTHQs, using methanol as the exclusive source for hydrogen (H) and methyl (CH3), without the addition of additional bases or additives. Mechanistic and kinetic studies reveal a tandem reaction pathway: (1) the dehydrogenation of methanol, (2) reduction of quinolines to 1,2,3,4-tetrahydroquinolines (THQs), and (3) N-methylation of THQs to MTHQs, with the dehydrogenation of methanol identified as the rate-determining step. Characterization and catalytic performance results demonstrate that SnOx modifies the morphology and electronic properties of Pt-based metal active sites, which dramatically facilitates the cleavage of O–H and less reactive C–H bonds in methanol, and maintains a delicate balance between methanol dehydrogenation and reductive N-methylation of quinolines, thus obtaining a high reactivity for the total transformation.
研究领域:
催化化学
·
有机合成
✓ 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）