Scientific Reports
·
2021
·Vol. 11
·期 1
·1-13
·
IF 4.38
Wang Zijing,Ma Peng,Wang Yisa,Hou Biyu,Zhou Can,Tian He,Li Bowen,Shui Guanghou,Yang Xiuying,Qiang Guifen,Yin Chengqian,Du Guanhua
Endoplasmic reticulum (ER) stress is a cellular state that results from the overload of unfolded/misfolded protein in the ER that, if not resolved properly, can lead to cell death. Both acute lung infections and chronic lung diseases have been found related to ER stress. Yet no study has been presented integrating metabolomic and transcriptomic data from total lung in interpreting the pathogenic state of ER stress. Total mouse lungs were used to perform LC–MS and RNA sequencing in relevance to ER stress. Untargeted metabolomics revealed 16 metabolites of aberrant levels with statistical significance while transcriptomics revealed 1593 genes abnormally expressed. Enrichment results demonstrated the injury ER stress inflicted upon lung through the alteration of multiple critical pathways involving energy expenditure, signal transduction, and redox homeostasis. Ultimately, we have presented p-cresol sulfate (PCS) and trimethylamine N-oxide (TMAO) as two potential ER stress biomarkers. Glutathione metabolism stood out in both omics as a notably altered pathway that believed to take important roles in maintaining the redox homeostasis in the cells critical for the development and relief of ER stress, in consistence with the existing reports.
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PubMed
高影响因子
Journal of Central South University
·
2021
·Vol. 28
·期 5
·1279-1290
·
IF 1.716
Zhang Guang-ji,Tang Fei-ying,Wang Li-qiang,Yang Wen-jie,Liu You-nian
Transition metal sulfides (TMSs)-based materials have been extensively investigated as effective non-noble catalysts for various applications. However, the exploration of TMSs-based catalysts for hydrogenation of nitro compounds is limited. Herein, CoS x /NC catalysts were prepared by solvothermal sulfurization of ZIF-67, followed by high-temperature annealing (300–600 °C) under NH 3 atmosphere. It was found that the structures and compositions of the as-prepared CoS x /NC can be readily tuned by varying the annealing temperature. Particularly, CoS x /NC-500, which possesses higher degree of S defects and larger specific surface areas, can achieve high conversion, selectivity and stability for catalytic reduction of nitro compounds into amines under mild reaction conditions.
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高影响因子
CELLULOSE
·
2021
·Vol. 28
·期 11
·7355-7372
·
IF 5.044
Guo Yingbin,Xiao Mengyuan,Ren Yuanlin,Liu Yansong,Wang Yang,Guo Xun,Liu Xiaohui
A novel effective halogen-free flame retardant (FR) rich in phosphorus (P) and nitrogen (N) was synthesized via Mannich and esterification reaction of ethanolamine, glyoxal, phosphoric acid and urea, and used for the preparation of durable flame retardant lyocell fabric (FR-lyocell). Its chemical structure was characterized by Fourier transform infrared spectra, 1 H and 31 P nuclear magnetic resonance spectra. Inductively coupled plasma emission spectrometry and elemental analysis were conducted to test the phosphorous, carbon and nitrogen contents. The results confirmed that the FR was successfully synthesized and grafted on the lyocell fabric via firm P–O–C covalent bonds. The limiting oxygen index of the FR-lyocell treated with 30 wt% flame retardant finishing solution is 44.6%, demonstrating high efficiency flame retardancy. The thermo-gravimetric analysis indicated that FR-lyocell degraded preferentially than that of the control sample and the char residue was 38.8 wt% at 800 °C in N 2 atmosphere. In addition, the cone calorimeter test revealed that FR-lyocell could not be ignited and the peak of heat release rate was much lower than that of original specimen. Furthermore, the char residue of FR-lyocell is compact and the I D / I G value is 0.771, exhibiting a super degree of carbonization. Moreover, TG-IR result revealed that FR played dual flame-retardant effect in the gaseous and condensed phases. The flame retardant finishing has a negligible impact on the mechanical properties of the fibers. In summary, FR-lyocell exhibits excellent flame retardancy and superior char forming capability, which is suitable for the preparation of flame retardant lyocell fibers. Graphic abstract
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高影响因子
IONICS
·
2021
·Vol. 27
·期 5
·2037-2043
·
IF 2.817
Kang Shusen,Yang Zelin,Yang Chengxiang,Zhao Shan,Wu Ningning,Liu Fuliang,Chen Xiaotao,Shi Bin
A novel polymer film is developed by trapping tribasic gel polymer electrolyte (GPE), which blended the polyethylene glycol (PEO), polystyrene (PS), and poly(methyl methacrylate) (PMMA). The properties of the PEO-PS-PMMA polymer film and PEO-PS-PMMA GPE were investigated. The ionic conductivity of the PEO-PS-PMMA GPE is 0.12 mS/cm at 25 °C. Li + transference number of PEO-PS-PMMA GPE is 0.2. Besides, PEO-PS-PMMA GPE shows high electrochemical stability and excellent interface stability to Li metal electrode. Li/PEO-PS-PMMA/LiFePO 4 cell achieved an initial specific discharge capacity of 97 mAh/g and good cycle performance at the current density of 0.1 C. This GPE is promising to be applied to rechargeable Li batteries with high safety and long cycle life.
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高影响因子
CELLULOSE
·
2021
·Vol. 28
·期 6
·3617-3630
·
IF 5.044
Qin Chengrong,Wang Wei,Li Wei,Zhang Song,Li Zerong
Superhydrophobic surfaces have attracted great attention due to their interesting properties. The ever-increasing environmental concern accelerated the development of bio-based superhydrophobic coating materials. As a high-yield agricultural waste, bagasse is cheap, ready available, renewable and biodegradable. It would be an ideal raw material for the preparation of bio-based superhydrophobic coatings to further improve its application value. Although the hydrophobization of bagasse have been reported, the according works mainly focus on the reaction mechanism and/or their oil-absorption properties. As far as we know, the design of bagasse-based superhydrophobic coatings has been uncovered. Herein, mechanically pretreated bagasse was esterified with stearoyl chloride. Spray-coating the suspension of as-synthesized bagasse esters onto various substrates (glass slide, aluminum flake and filter paper), superhydrophobic surfaces were generated. SEM images in combination with the high-resolution C1s XPS deconvolution spectra implied that nano-structured bagasse esters were deposited on the synthesized micro-scaled esters, which was necessary for their superhydrophobicity. The as-prepared superhydrophobic surfaces exhibited good anti-fouling, oil absorption performance and high time/temperature/pH stability. This research would provide a novel perspective for the design of other bio-based superhydrophobic coatings. Graphic abstract
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高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2021
·Vol. 28
·期 24
·31470-31478
·
IF 4.223
Huang Ting,Tang Xiaomin,Zhang Shixin,Wang Wei,Zhang Jie,Tan Xuemei,Zheng Huaili
Refractory organic pollutants in tail water of dyeing wastewater treatment have aroused wide concern. Their efficient and cost-effective removal reduced their threat to public health and ecosystem. Herein, a novel short-cut photocatalysis/algal degradation-based hybrid technology was implemented in efficient removal of methylene blue (MB) in simulated tail water using reliable titanium dioxide and common Chlorella pyrenoidosa , and the mechanisms in processes were emphasized. The treatment efficiency was significantly improved via pretreatment before chemical and biological degradation. MB of 79.71% was concentrated as the adsorption of the modified titanium dioxide and the collection of titanium dioxide by inorganic coagulant. The supernatant with low concentration of MB after coagulation was able to be directly treated by Chlorella pyrenoidosa . MB of 93.7% was degraded and transformed to intermediates in short-cut photocatalysis under visible light in 1 h. The intermediates owning the low biological inhibition were easily further degraded by Chlorella pyrenoidosa in 6 days. Mechanism analysis implied that the modified titanium dioxide was not simple monolayer adsorption, and physical adsorption was dominant. The coagulant played an essential role of charge neutralization in collection of the modified titanium dioxide. The removal of photocatalytic intermediates was divided to fast adsorption of Chlorella pyrenoidosa , low desorption in lag period of algae, and gradual biodegradation that accompanied with the increase of algal cell quantity.
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高影响因子
Scientific Reports
·
2021
·Vol. 11
·期 1
·1-12
·
IF 4.38
Wu Shibin,Chen Yan,Chen Zhenshou,Wang Jiaqi,Cai Miaomiao,Gao Junkai
Metal microspheres doping porous carbon (MMPC), which was prepared using in-situ pyrolysis reduction strategy, could enhance the thermal conductivity of shape-stabilized phase change material (ss-PCM) prepared by MMPC as the matrix. However, in previous studies that were reported, the preparation of MMPC needed to synthesize porous carbon by pyrolysis firstly, and then porous carbon adsorbed metal ions was pyrolyzed again to obtain MMPC, which was tedious and energy-prodigal. In this study, a one-step pyrolysis strategy was developed for the synthesis of MMPC through the pyrolyzation of wheat bran adsorbed copper ions, and the copper microspheres doping wheat bran biochar (CMS-WBB) was prepared. The CMS-WBB was taken as the supporter of stearic acid (SA) to synthesize the ss-PCM of SA/CMS-WBB. The study results about the thermal properties of SA/CMS-WBB demonstrated that the introduction of copper microspheres could not only improve the thermal conductivity of SA/CMS-WBB, but also could increase the SA loading amount of wheat bran biochar. More importantly, the CMS-WBB could be obtained by only one-step pyrolysis, which greatly simplified the preparation process and saved energy consumption. Furthermore, the raw material of wheat bran is a kind of agricultural waste, which is abundant, cheap and easy to obtain. Hence, the SA/CMS-WBB synthesized in this study had huge potentialities in thermal management applications, and a simplified method for improving the thermal properties of ss-PCMs was provided.
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高影响因子
BIODEGRADATION
·
2020
·Vol. 31
·期 4
·275-288
·
IF 2.805
Wang Yuanshan,Gong Meihua,Wang Xianlin,Peng Xiaolun,Wang Yuwei,Guan Jiahui,Cheng Dongyuan,Weng Chunyue,Zheng Yuguo
Ivermectin (IVM) is a widely used antiparasitic agent and acaricide. Despite its high efficiency against nematodes and arthropods, IVM may pose a threat to the environment due to its ecotoxcity. In this study, degradation of IVM by a newly isolated bacterium Aeromonas taiwanensis ZJB-18,044 was investigated. Strain ZJB-18,044 can completely degrade 50 mg/L IVM in 5 d with a biodegradation ability of 0.42 mg/L/h. Meanwhile, it exhibited high tolerance (50 mg/L) to doramectin, emamectin, rifampicin, and spiramycin. It can also efficiently degrade doramectin, emamectin, and spiramycin. The IVM degradation of strain ZJB-18,044 can be inhibited by erythromycin, azithromycin, spiramycin or rifampicin. However, supplement of carbonyl cyanide m -chlorophenylhydrazone, an uncoupler of oxidative phosphorylation, can partially recover the IVM degradation. Moreover, strain ZJB-18,044 cells can pump out excess IVM to maintain a low intracellular IVM concentration. Therefore, the IVM tolerance of strain ZJB-18,044 may be due to the regulation of the intracellular IVM concentration by the activated macrolide efflux pump(s). With the high IVM degradation efficiency, A. taiwanensis ZJB-18,044 may serve as a bioremediation agent for IVM and other macrolides in the environment.
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高影响因子
CHEMICAL PAPERS
·
2020
·Vol. 75
·期 3
·853-862
·
IF 1.68
Shao Tantan,Gong Yilu,Chen Xiaolong,Chen Lijun
The modified self-crosslinking fluorocarbon acrylate (MSFA) latex has been successfully synthesized via semi-continuous seeded emulsion polymerization. Methyl methylacrylate (MMA), butyl acrylate (BA), dodecafluoroheptyl methacrylate (DFMA), and hydroxypropyl methacrylate (HPMA) were chosen as main monomers, vinyl triethoxysilane (VTES), and benzyl methacrylate (BZMA) served as functional monomers. Latex was emulsified by mixed emulsifier containing nonionic surfactant alcohol ether glycoside (AEG1000) and anionic surfactant fatty alcohol polyoxyethylene ether sulfate (AES), and the reaction process was initiated by potassium persulfate (KPS). The optimal conditions were studied and obtained. The results indicated that the monomer conversion was up to 99.36%, and the coagulation was lowered to 0.60% under the optimal conditions. At the same time, the outward appearance of resultant latex presented blue white which confirmed the latex was a successful preparation. The latex was tested through Fourier-transform infrared spectroscopy (FTIR). The mechanical stability and chemical stability of latex were measured. Thermogravimeter (TGA) results demonstrated that the introduction of functional monomers has extensively augmented the thermal stability of prepared film. The glass transform temperature ( T g ) was detected by differential scanning calorimetry (DSC) and the water resistance of film was evaluated through water contact angle (WCA). The average particle size of latex was 62.99 nm and PDI was 0.069.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2020
·Vol. 56
·期 1
·442-456
·
IF 3.553
Ma Xiaoqing,Tang Kang-lai,Yang Mingyu,Shi Wenbing,Zhao Wenxi
Reliable determination of hydrogen peroxide (H 2 O 2 ) and glucose is vital in various fields, especially implicated in diagnosis of diabetes and oxidative stress-related diseases. Herein, yolk–shell hollow Ni/NiO@C microspheres were template-synthesized with well-defined Ni-MOF (metal–organic framework) and further worked as a bifunctional electrocatalyst for glucose oxidation in alkaline solution and H 2 O 2 reduction in neutral solution, of which the unique structure and rich pore openings provide large accessible surface areas, while the uniformly distributed Ni, NiO and C efficiently catalyze and facilitate the reaction of glucose and H 2 O 2 , thus achieving a wide linear range of 0.01 to 10 mM with a sensitivity of 1291 μA mM −1 cm −2 and a detection limit of 0.116 μM for glucose and offering a sensitivity of 32.09 μA mM −1 cm −2 , a detection limit of 0.9 μM and a linear range up to 80.7 mM for H 2 O 2 , as well as good selectivity, excellent reproducibility and long-term stability for two analytes. What’s more, the as-constructed sensors realize quantitative detection glucose in blood serum with satisfying results and can use to monitor H 2 O 2 in neutral situation. This work opens an avenue to design high-performance sensoring materials but also becomes a great candidate in practical application.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2020
·Vol. 55
·期 36
·17255-17265
·
IF 3.553
Huang Jinxin,Zhang Wei,Li Heng,Yu Xiaogang,Ding Shuaiwen,Wu Chengwei
Biocompatible polydopamine–polyacrylamide (PDA–PAM) hydrogel has good self-healing performance. However, there is a trade-off between the self-healing ability and the mechanical strength. Excellent self-healing often results in the poor mechanical strength, which limits the application in load-bearing field. Here, we successfully prepare PDA–PAM hydrogels with improved strength and good self-healing properties simultaneously. By adjusting the pH and ammonium persulfate (APS) content of the hydrogel solution to promote dopamine (DA) polymerization, PDA–PAM hydrogel with a high content of polydopamine (PDA) is developed, which demonstrates excellent self-healing properties and mechanical strength. In particular, the PDA–PAM hydrogel with high PDA content (DA/AM = 5%) has a tensile strength of 16 kPa and the tensile strength spontaneously recovers 96% in 2 h after the tensile fracture. The obtained hydrogel also displays good biocompatibility.
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高影响因子
Journal of Ocean University of China
·
2020
·Vol. 19
·期 6
·1353-1361
·
IF 0.802
Chen Yan,Liu Shanshan,Yang Guipeng,He Zhen
Methyl iodide (CH 3 I) is an important trace greenhouse gas in the atmosphere and an ozone-depleting substance. The influence of different environmental factors, such as the duration of illumination; the strength of illumination; the concentrations of humic acid, ferric ion (Fe 3+ ), and iodide ion (I − ); and pH, on the photochemical production of CH 3 I in artificial seawater (ASW) were tested by simulated solar irradiation. In addition, Yangtze River Estuary waters from inshore to offshore were used to explore the relationship between the photochemical production of CH 3 I and different sources of dissolved organic matter (DOM) in natural sea-water (NSW). The results revealed that higher concentrations of humic acid and I − , as well as higher strengths of illumination and longer illumination durations, promoted the photochemical formation of CH 3 I in ASW. The addition of Fe 3+ accelerated the photochemical production of CH 3 I, but high concentrations of Fe 3+ inhibited the formation of CH 3 I. Experiments on NSW obtained from the Yangtze River estuary spiked when concentrations of DOM were high, confirming that DOM plays an important role in facilitating the photochemical production of CH 3 I within the Yangtze River Estuary. The photochemical production of CH 3 I in the seawater was significantly higher under light conditions relative to dark conditions, indicating that illumination accelerated the production of CH 3 I.
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