Frontiers of Environmental Science & Engineering
·
2021
·Vol. 16
·期 8
·1-14
·
IF 4.357
Luo Jingyang,Fang Shiyu,Huang Wenxuan,Wang Feng,Zhang Le,Fang Fang,Cao Jiashun,Wu Yang,Wang Dongbo
Surfactants were expected to exhibit positive effects on the waste activated sludge (WAS) disposal. However, the systematic comparison of different categories of surfactants on the WAS fermentation and the functional mechanisms, especially microbial metabolic traits, have not yet been precisely explored. This study revealed the positive effects of different surfactants on the volatile fatty acid (VFA) production, which followed the order of alkyl polysaccharides (APG)>sodium dodecylbenzene sulfonate (SDBS)>hexadecyl trimethyl ammonium bromide (HTAB). Mechanistic exploration found that the presence of different surfactants improved solubilization and hydrolysis steps, and then contributed to the subsequent acidification with different efficiencies. The functional microorganisms associated with VFA generation were enriched in surfactant-conditioned reactors. Metagenomic analysis further indicated that the key genes involved in the particular process of VFA generation were over-expressed. The simultaneous bioavailable substrate improvement, functional bacterial enrichment, and metabolic activity upregulation induced by different surfactants jointly contributed to VFA promotion during WAS fermentation. This study could provide a comprehensive realization of surfactants’ impacts on the WAS fermentation process, and more importantly, it reminded the public to discern the distinct interplaying effects induced by different chemicals in regulating the WAS disposal and resource recovery.
研究领域:
环境工程
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微生物学
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生物技术
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DOI
高影响因子
MATERIALS RESEARCH INNOVATIONS
·
2025
·
IF 0
Yu Tian,Feiyao Huang,Di Zhu,Li Jiang,Qimin Jiang,Hongjun Yang,Wenyan Huang,Xiaoqiang Xue,Bibiao Jiang
The branched poly (2-hydroxyethyl methacrylate)(BPHEMA) was carried out using 2-methyl-n-[3-(methyl phenyl amino)-propyl]–acrylamide(MPAEMA, synthesised in laboratory) and benzoyl peroxide(BPO) as redox initiator by water/toluene inverse emulsion polymerisation. The weight-average molecular weight (Mw.MALLS), mean-square radius of gyration(Rg), intrinsic viscosity([η]), relative branching factor g and g’, and micro rheological properties of BPHEMA were measured by static and dynamic light scattering(DLS-SLS) and Ubbelohde viscometer. The results show that the BPHEMA was synthesised by inverse emulsion polymerisation at room temperature. The degree of branching increased with the increase of the content of reducing agent MPAEMA in the feed ratio, and the molecular weight was not affected significantly by the change of feed ratio. However, the molecular weight of linear poly (2-hydroxyethyl methacrylate) (LPHEMA) was significantly affected by the change of feed ratio.
研究领域:
高分子化学
·
材料科学
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物理化学
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产品关联
DOI
Queensland Review
·
2016
·Vol. 16
·期 1
·79-94
·
IF 0
Alison Ransome
Yet in time to come the individual will fade into oblivion, andthe work will stand or fall by its abstract power or its lack of it.— Ian McKay In 1983, more or less mid-career as it turned out to be in the light of his earlydeath, Ian McKay summarised his intentions as a potter:I try to make simple pots that people will enjoy using. The traditionsI draw on for inspiration are mainly Japanese and what could looselybe called ‘the Cardew’ tradition. In practice for me this amounts toforms that are a clear statement of the pot's function, and very simpleglaze recipes using the maximum of hand collected local materials – sothat the pots may speak for themselves and give pleasure unspoiledby too much intrusion of the potter's own personality.
研究领域:
艺术学
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陶瓷艺术
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工艺美术
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文化遗产
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设计学
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DOI
INDUSTRIAL CROPS AND PRODUCTS
·
2022
·
IF 6.449
Xiaoming Song,Luyao Zhang,Yan Wang,Rui Zhao,Xiuxiu Sun,Yue Tian,Ruru Sun,Chenghao Hua,Rujin Bai,Chuansheng Wang,Shanshan Gao
Cellulose products such as textile, paper, package and so on are apt to breed bacterial. In this study, AA-PHMB antibacterial agent was synthesized innovatively. It was grafted onto cellulose by the addition polymerization of carbon carbon double bonds and hydroxyl groups to prepare cellulose antibacterial film with excellent performance. The structures, elements, mechanical properties and antibacterial activities of films were studied. The results showed that C N absorption at 1631 cm −1 of guanidine and the amide group absorption peak at 1554 cm −1 appeared on cellulose graft copolymers ; employing SEM-EDS, a great quantity of deposited materials, with the elements of C, O and N, were observed on the grafted cellulose. The graft percentage of cellulose-AA-PHMB was about 62%. Compared with unmodified cellulose films , the mechanical properties of PHMB-AA-cellulose film were lower, and the crystallinity of the PHMB-AA-cellulose film was lower than that of original cellulose film. The modified film as a raw material had a good inhibitory effect on Escherichia coli and Staphylococcus aureus was proved by bacteriostatic experiments. Under the condition of continuous culture for 15 days, it still had a good bacteriostatic effect on the above strains, and therefore the cellulose-AA-PHMB films were long term antibacterial effect materials.
研究领域:
材料科学
·
生物学
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DOI
高影响因子
Scientific Reports
·
2025
·Vol. 15
·期 1
·1-8
·
IF 3.9
Wang Keke,Liu Zhi,Zhou Chenxin,Liu Baixiong,Gu Feng,Xiong Shixian,Liu Jianfeng,Yang Munan
Utilizing aerosol jet printing (AJP), this study achieves a breakthrough in fabricating luminescent fibers with superior optical performance and flexibility. The Y 2 O 3 :Eu 3+ coated high silica glass fibers demonstrate luminous efficiency twice that of traditional methods, retaining 80% after 250 bending cycles and 90% after sweat immersion. This AJP technique not only elevates the potential of smart fabrics but also represents a significant innovation in lighting technology, providing new ideas for advanced functional fiber fabrication.
研究领域:
材料科学
·
光学工程
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DOI
PubMed
高影响因子
TOXICOLOGY AND APPLIED PHARMACOLOGY
·
2018
·
IF 3.616
Lili Wu,Yulian Chen,Han Liu,Zhikun Zhan,Zhi Liang,Tao Zhang,Zheng Cai,Ling Ye,Menghua Liu,Jie Zhao,Shuwen Liu,Lan Tang
Aggravating effect of probenecid (a traditional anti-gout agent) on emodin-induced hepatotoxicity was evaluated in this study. 33.3% rats died in combination group, while no death was observed in rats treated with emodin alone or probenecid alone, indicating that emodin-induced (150 mg/kg) hepatotoxicity was exacerbated by probenecid (100 mg/kg). In toxicokinetics-toxicodynamics (TK-TD) study, aspartate aminotransferase (AST) and systemic exposure (area under the serum concentration-time curve, AUC ) of emodin and its glucuronide were significantly increased in rats after co-administrated with emodin and probenecid for 28 consecutive days. Results showed that the increased AUC (increased by 85.9%) of emodin was mainly caused by the decreased enzyme activity of UDP-glucuronosyltransferases (UGTs, decreased by 11.8%–58.1%). In addition, AUC of emodin glucuronide was increased 5-fold, which was attributed to the decrease of multidrug-resistant-protein 2 (MRP2) protein levels (decreased by 54.4%). Similarly, in vitro experiments proved that probenecid reduced the cell viability of emodin-treated HepG2 cells through inhibiting UGT1A9, UGT2B7 and MRP2. Our findings demonstrated that emodin-induced hepatoxicity was exacerbated by probenecid through inhibition of UGTs and MRP2 in vivo and in vitro , indicating that gout patients should avoid taking emodin-containing preparations in combination with probenecid for a long time.
研究领域:
药理学
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毒理学
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药学
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产品关联
DOI
PubMed
高影响因子
Food Quality and Safety
·
2023
·
IF 5.6
Xia Jiabei,Zhang Cenrong,Zhu Kai,Mei Xingyu,Cheng Huan,Chen Shiguo,Ye Xingqian,Chen Jianle
Polygonatum sibiricum, famous for its physiological activities, is a popular Chinese food and also a traditional Chinese herb containing many carbohydrates as the main component. However, except the most reported polysaccharides, other detailed compositions of carbohydrates were still not clear. To verify the controversial existence of starch and investigate other components especially about oligosaccharides, we used iodine-potassium iodide colorimetric detection and enzymatic hydrolysis to determine starch. Then, oligosaccharides were analyzed by thin-layer chromatography (TLC), gel permeation chromatography (GPC), high-performance anion exchange chromatography with pulsed amperometric detection (HPAEC-PAD), and hydrophilic interaction chromatography-electrospray tandem mass spectrometry (HILIC-ESI-MS/MS). Results showed that the rhizome of Polygonatum sibiricum lacked starch, and fructo-oligosaccharides were the main component, accounting for about 28.95%. Oligosaccharides with degrees of polymerization above 10 were the most abundant components. This study clearly illustrated the unknown carbohydrate components of Polygonatum rhizome, promoting its functional value with new evidence.
研究领域:
植物学
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药理学
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分析化学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING & TECHNOLOGY
·
2026
·Vol. 49
·期 2
·e70167
·
IF 1.6
Jing Peng,Yin Huang,Haoran Lei,Xiuhua Wang
We successfully engineered a cactus-like Co 2 P nanocatalyst for overall water splitting by incorporating manganese to modulate its electronic structure. Incorporating Mn into Co 2 P enhances both HER and OER through optimized surface adsorption, leading to faster kinetics and improved catalytic efficiency. The Mn-Co 2 P catalyst delivers outstanding alkaline HER performance, requiring just 51 mV to drive 10 mA cm −2 while showing no degradation during a 48-h stability test. Notably, the OER overpotential is just 283 mV at 50 mA cm −2 with remarkable durability. Remarkably, when utilized as dual-function electrodes in a complete water electrolysis system, the Mn-Co 2 P-based system delivers 10 mA cm −2 at a low cell voltage of 1.523 V, along with brilliant long-term stability.
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产品关联
DOI
高影响因子
TALANTA
·
2025
·
IF 6.1
Xinli Guo,Shuangshuang Yan,Nishan Jin,Wenbin Zhong,Dongying An,Murui Ying,Yutian Zhou,Yudong Wu,Xin Li,Yang Zhang
The total antioxidant capacity (TAC) of fruits is a key indicator for measuring their quality and nutritional value. Traditional detection methods are time-consuming and cumbersome, failing to meet the requirements for rapid detection. In this study, a novel triple metal organic framework nanozyme (TAMzyme) with superior peroxidase-like (POD-like) activity is constructed for colorimetric detection of TAC. Owing to the Fe, Co, Ni doping and unique long spindle structures, the TAMzyme possesses more surface active oxygen species, negative surface charges and rapid mass transport, thus resulting in higher catalytic activity and reaction rate. Thanks to the remarkable peroxidase-like activity, the antioxidant capacity of ascorbic acid (AA), cysteine (Cys), glutathione (Glu), and gallic acid (GA) was evaluated with a detection limit between 0.54 and 1.58 μM. Antioxidant capacity was quantified in μM Trolox Equivalent (TE), with Trolox as the standard reference compound. The sensor accurately determined the TAC in kiwi fruit (194.97 ± 2.73 μM TE) and oranges (205.10 ± 3.85 μM TE), aligning with results from a standardized ABTS kit. This study presents a rapid, cost-effective, and straightforward method for quantifying TAC in complex food matrices.
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产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Run-tian Ma,Jun Zhang,Jin-xiu Guo,Fang Nian,Cheng Wang,Wei-bing Xu
Lactoferrin (Lf) is one of the important nutrients in milk, and its detection is crucial for dairy and breeding industry. However, the high cost, complex operation and dependence on advanced instruments limited its detection in small and medium-sized pastures. Thus, a detection device as a portable slide based MIPs-FL sensor was fabricated by preparing MIPs on the surface of ZnO nanoflowers functionalized slide, and it could be directly used in milk without any pre-treatments. The prepared detection device showed a high selectivity towards Lf with an imprinting factor of 9.05 and a binding affinity of 356.34 mL/g. Correspondingly, an on-line detection method for Lf was established with good linear relationship ( r > 0.9680) in the range of 0.0625 mg/mL-1.00 mg/mL, and the value of LOD and LOQ were 0.0207 mg/mL and 0.0690 mg/mL, respectively. This convenient method was successfully applied in ten milk samples, and showed application potential in on-situ detection.
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产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Xinggong Hu,Jiong Li,Guoyong Du,Chunping Deng,Sike Chen
With the development of oil enterprise and petrochemical industry, more and more oily wastewater is generated, which highlights the urgency of oil/water separation. In order to solve the troubles of cumbersome membrane training and effortless clogging when the use of the membrane separation method, this find out about proposes a new and simple technique to prepare modified oil/water separation membranes based on commonly used PVDF membranes with the assist of covalent cross-linking of pyrogallic gallic acid (PG) and glutathione (GSH), and chelating and liganding of copper nanoparticles (Cu NPs). PG can be rapidly oxidized by Michael addition/Schiff response to generate a mussel-like adhesion layer, and the hydrophilic coating formed by way of covalent cross-linking with glutathione (GSH) incorporates a giant variety of catechol functional groups, which can be chelated and ligated with Cu NPs to structure a steady superhydrophilic phenolic community coating. The Cu@MF-PG/GSH membranes were capable to separate more than a few kinds of stable oil-in-water emulsions with surfactants, and the separation fluxes were giant (all fluxes have been >779 L/m2.h). Meanwhile, the separation efficiencies were all greater than 99% with excellent biking stability (flux recovery >97%). In addition, the self-cleaning property of Cu@MF-PG/GSH membranes was tested. The outcomes showed that the Cu@MF-PG/GSH membrane could be restored to a easy kingdom after simple water rinsing even when it was once contaminated by soybean oil with high viscosity. It suggests terrific self-cleaning performance
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产品关联
DOI
高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
·
2021
·
IF 6.291
Min Kang,Jie Luo,Ling Zhao,Fei Shi,Gang Ye,Xiaoli He,Suqi Hao,Dan Yang,Helin Chen,Hongrui Guo,Yinglun Li,Huaqiao Tang
Nano-copper (nano-Cu) is widely used in the pharmaceutical field as well as a feed additive for animals owing to its unique physicochemical characteristics and bioactivities. In our previous study, nano-Cu was found to hamper fetal development; however, the toxicity of nano-Cu and its effects in placental function have not been elucidated. Therefore, we investigated the toxic effects of nano-Cu using rat placenta. Pregnant Sprague-Dawley rats were orally exposed to different copper sources from the third day of gestation (GD 3) to GD 18. We found that nano-Cu (180 mg/kg) and CuCl 2 .2 H 2 O increased the accumulation of copper. Besides, nano-Cu and CuCl 2 .2 H 2 O disrupted the placental morphology and induced oxidative stress. Micro-copper (micro-Cu) caused similar toxicity in the placenta, but its effects were weaker than that of nano-Cu and CuCl 2 .2 H 2 O. In addition, exposure to nano-Cu (180 mg/kg) and CuCl 2 .2 H 2 O induced inflammation in the rat placenta. Furthermore, nano-Cu, micro-Cu, and CuCl 2 .2 H 2 O upregulated the expression of the autophagy-related proteins, Beclin-1 and LC3 II/ LC3 I, and downregulated that of p62. Moreover, nano-Cu, micro-Cu, and CuCl 2 .2 H 2 O downregulated the protein expression of PI3K, p-AKT/AKT, and p-mTOR/mTOR in rat placentas, whereas the protein expression of p-AMPK/AMPK was upregulated. Taken together, our data indicated that prenatal exposure to nano-Cu induced autophagy via the PI3K/AKT/mTOR and AMPK/mTOR pathways, which associated with oxidative stress and inflammation in rat placenta.
研究领域:
毒理学
·
药理学
·
生殖生物学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）