Atmospheric Pollution Research
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2018
·
IF 2.152
Longchao Liang,Zhidong Xu,Guangle Qiu,Pan Wu,Ruixue Zhang
Arsenic (As) is considered a carcinogenic toxin, and nonferrous metal smelting activities can release significant quantities of As, causing an increase in As levels in the environment. A total of 221 samples of moss belonging to 5 species in 4 families were collected from the Wanshan District, the world third largest mercury mining area, in Guizhou Province, southwestern China, for analysis of total As (tAs) concentrations and As speciation. The results indicated that the tAs concentrations in these mosses ranged from 0.67 to 9.6 mg kg −1 , with an average of 2.4 ± 1.7 mg kg −1 . The dominant species of As in these mosses were inorganic forms of arsenite (As(III)) and arsenate (As(V)) with a total percentage of 87%, whereas the concentrations of organic forms (monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA)) were relatively low, with percentages of 11.8% and 6.0%, respectively. A significant correlation (r = 0.766, p < 0.01) was observed between As(V) and tAs. In the spatial distribution pattern of As, high concentrations of As in mosses were centralized around historical Hg retorting sites in the town of Wanshan, the villages of Gouxi and Yanwuping and sites downwind of these locations, suggesting that historical intensive Hg mining activities might be the most possible source of atmospheric As.
研究领域:
环境科学
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植物学
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生态毒理学
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2018
·
IF 5.091
Shudi Zhi,Gang Wang,Zhixiang Zeng,Lijing Zhu,Zhixiong Liu,Dawei Zhang,Kaile Xu,Qunji Xue
The superamphiphobic surfaces with extreme repellency to liquids are very attractive in many fields, but their fabrication processes are always low effective and expensive. So it is still a challenge to create the superamphiphobic surfaces by simple, time saving and universal method. In this work, the mossy zinc (Zn) filaments, a promising re-entrant structure, was rapidly constructed on various metal surfaces by electrochemical deposition approach. After modification by 1H,1H,2H,2H- perfluorodecyltrichlorosilane (PFDTCS), the Zn@PFDTCS coating exhibited superamphiphobicity in air. The correlation between the morphology of Zn filaments and electrochemical deposition parameters has been studied. The superamphiphobic surface with contact angle higher than 154°, sliding angle lower than 5° and adhesive force lower than 0.043 mN to water and hexadecane was obtained, when the current density was 1.78 A ·dm −2 , the mass fraction of zinc was 0.71 wt% and the deposition time was 40 min. Furthermore, the Zn@PFDTCS 2D-meshes were used to collect oil droplets under water and cut water droplet in oil due to their superoleophilicity under water and superhydrophobicity under oil. We anticipated that the simple and rapid method guides the design of perfect artificial superamphiphobic surfaces in practical application.
研究领域:
材料科学
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表面工程
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产品关联
DOI
PubMed
高影响因子
Friction
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2024
·
IF 6.3
Guo Yuyan,Liu Peng,Zhang Wenhao,Guo Zhiguang,Liu Weimin
Oil pollution and the energy crisis make oil-water separation an urgent for human need. The widespread use of materials with a single emulsion separation capability is limited. Multifunctional on-demand separation materials can adapt to a wide range of application scenarios, thus having a wider range of applications. The underoil superhydrophilic surface is of great significance for realizing the on-demand separation of oil/water emulsions through the removal of water in the oil and oil in the water. A 3D porous emulsion separation material based on the superhydrophilic principle of sphagnum moss was designed. The material was prepared in a simple step by taking advantage of the adhesion of polydopamine and the introduction of the as-prepared superhydrophilic BaSO 4 nanoparticles to achieve superhydrophilicity with a water contact angle (WCA) of 0° and an oil contact angle (OCA) of 157.3°, resulting in excellent separation performance for both water-in-oil and oil-in-water emulsions. Underoil superhydrophilic porous composite (OSPC) can complete two kinds of emulsion separations by filtration or adsorption. It adsorbs water from water-in-oil emulsion to achieve separation, with a good adsorption capacity of 74.38 g/g and efficiency up to 99%. It can also filter oil-in-water emulsions with an efficiency of 99.92%. The separation efficiencies are all almost unchanged after ten separation cycles. Furthermore, the material has excellent flame retardancy, which reduces the possibility of secondary disasters. The three-dimensional porous sponge has excellent on-demand separation performance for multiple emulsions. It provides a new preparation strategy for underoil superhydrophilic materials and a new idea for the design direction of special wetting materials for the on-demand separation of oil/water emulsions.
研究领域:
材料科学
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环境科学
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表面工程
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产品关联
DOI
高影响因子
JOURNAL OF CULTURAL HERITAGE
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2023
·
IF 3.1
Lina Xie,Lan Yao,Bingjian Zhang,Yulan Hu
The moss colonization on the surface of historic buildings could result not only in a biodeterioration but also in an aesthetical damage. In this study, some mixtures of consolidant (MMH) and GO@CuO hybrids were developed to control moss growth on the surface of weathered sandstone. An innovative aspect of the study was that, by using GO as the intermediate, the CuO nanoparticles were anchored to the MMH consolidant. This method could effectively improve the binding force between CuO nanoparticles and the stone substrate and make it not be washed away by rainfall. Several formulations have been prepared, applied on weathered sandstone specimens, and tested in laboratory to investigate the impact of GO@CuO hybrids addition on consolidation performance. The complex consolidants were subjected to an antibiological activity assay to assess their capability to inactivate moss spores. The complex consolidants were also applied to the specimens covered with mosses. The obtained results demonstrated that the consolidant loaded with GO@CuO hybrids were effective in consolidating the weathered substrate and preventing moss growth on its surface. Additionally, the complex consolidant also had the function of controlling re-colonization of moss after conservation treatment.
研究领域:
文物保护
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材料科学
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微生物学
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产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
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2020
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IF 7.632
Hanfang Zhang,Xiaojun He,Feng Wei,Shian Dong,Nan Xiao,Jieshan Qiu
Inspired by the magical biomimetic structure of mosses grown on rocks, form interconnected networks to enhance the accessible surface to nutrients, we report the synthesis of hybrid porous carbons (HPCs) via anchoring porous carbon nanosheets on bulk carbon backbones by using multidirectional carbon nanosheets as mosses with bulk carbon backbones as rocks to enhance the transport of both electrons and ions. The as-synthesized HPC possesses ultrahigh specific surface area (3619 m2 g–1) and graphitic carbon layers. The HPCs display a high specific capacitance of 205 F g–1 at 0.2 A g–1, good rate capability up to 176 F g–1 at 20 A g–1, and exceptional cycle stability with 97% of capacitance retention after 10,000 cycles in a two-electrode cell. This work provides a facile strategy to construct novel energy storage materials by imitating the biological behaviors.
研究领域:
材料科学
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电化学
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仿生学
✓ 已验证
DOI
高影响因子
DIAMOND AND RELATED MATERIALS
·
2024
·
IF 4.3
Shuai Yang,Tao Li,Jun Fang,Shichong Yao,Zhenyu Li,Yunyun Liu,Jie Chen,Yuanliang Yuan,Xiaocong Zhong
N,O-codoped microporous carbon (HPC) was derived from hypnum plumaeforme via precarbonization and KOH activation and utilized as an electrode for supercapacitors. The HPC750 sample, produced at an activation temperature of 750 °C, demonstrated superior capacitive behavior due to its large specific surface area, microporous architecture, and high number of oxygen and nitrogen heteroatoms. These HPC750 electrodes have a specific capacitance of up to 424 F g −1 at a current density of 1 A g −1 while also providing excellent rate performance, maintaining >85 % capacitance over a range of 1 to 100 A g −1 . In a symmetric supercapacitor configuration using 6 M KOH and 1 M Na 2 SO 4 as electrolytes, the HPC750 electrodes exhibit high specific capacitances of 96.2 F g −1 and 65.8 F g −1 at a current density of 1 A g −1 , respectively. With the Na 2 SO 4 electrolyte, the device achieved a peak energy density of 29.9 W h kg −1 and a peak power density of 225 W kg −1 . In addition, the electrodes retained approximately 90 % of their initial capacitance after 15,000 cycles at a current density of 5 A g −1 .
研究领域:
材料科学
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能源存储
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植物学
✓ 已验证
DOI
高影响因子
Frontiers in Pharmacology
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2020
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IF 4.225
Wang Xiao-Shuang,Sun Zhi,Liu Li-Wei,Du Qiu-Zheng,Liu Zhang-Suo,Yang Yan-Jie,Xue Peng,Zhao Hong-Yu
Background: Oral lichen planus (OLP) is a T-cell-mediated chronic inflammatory disorder and precancerous oral lesion with high incidence. The current diagnostic method of OLP is very limited and metabolomics may provide a new approach for quantitative evaluation.Methods: The Ultra-Performance Liquid Chromatography-Quadrupole/Orbitrap High Resolution Mass Spectrometry (UHPLC-Q-Orbitrap HRMS) was applied to analyze the change of metabolites in serum of patients with OLP. A total of 115 OLP patients and 124 healthy controls were assigned to either a training set (n = 160) or a test set (n = 79). The potential biomarkers and the change of serum metabolites were profiled and evaluated by multivariate analysis.Results: Totally, 23 differential metabolites were identified in the training set between OLP group and healthy group. Three prominent metabolites in receiver operating characteristic (ROC) were selected as a panel to distinguish OLP or healthy individuals in the test set, and the diagnostic accuracy was 86.1%.Conclusions: This study established a new method for the early detection of OLP by analyzing serum metabolomics using UHPLC-Q-Orbitrap HRMS, which will help in understanding the pathological processes of OLP and identifying precancerous lesions in oral cavity.
研究领域:
医学
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代谢组学
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病理学
✓ 已验证
DOI
PubMed
高影响因子
Frontiers in Oncology
·
2021
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IF 6.244
Xin Ming-zhe,Shi Ying-ying,Li Chun-shen,Zuo Li-hua,Li Na,Liu Li-wei,Ma He-xin,Du Qiu-zheng,Xue Peng,Sun Zhi,Zhao Hong-yu
Objective: To explore metabolic biomarkers related to erosive and reticulated oral lichen planus (OLP) by non-targeted metabolomics methods and correlate metabolites with gene expression, and to investigate the pathological network pathways of OLP from the perspective of metabolism.Methods: A total of 153 individuals were enrolled in this study, including 50 patients with erosive oral lichen planus (EOLP), 51 patients with reticulated oral lichen planus (ROLP), and 52 healthy controls (HC). The ultra-high-performance liquid chromatography quadrupole-Orbitrap high-resolution accurate mass spectrometry (UHPLC/Q-Orbitrap HRMS) was used to analyze the metabolites of 40 EOLP, 40 ROLP, and 40 HC samples, and the differential metabolic biomarkers were screened and identified. The regulatory genes were further screened through the shared metabolites between EOLP and ROLP, and cross-correlated with the OLP-related differential genes in the network database. A “gene-metabolite” network was constructed after finding the key differential genes. Finally, the diagnostic efficiency of the biomarkers was verified in the validation set and a diagnostic model was constructed.Result: Compared with HC group, a total of 19 and 25 differential metabolites were identified in the EOLP group and the ROLP group, respectively. A total of 14 different metabolites were identified between EOLP and ROLP. Two diagnostic models were constructed based on these differential metabolites. There are 14 differential metabolites shared by EOLP and ROLP. The transcriptomics data showed 756 differentially expressed genes, and the final crossover network showed that 19 differential genes were associated with 12 metabolites. Enrichment analysis showed that alanine, aspartate and glutamate metabolism were closely associated with the pathogenesis of OLP.Conclusion: The metabolic change of different types of OLP were clarified. The potential gene perturbation of OLP was provided. This study provided a strong support for further exploration of the pathogenic mechanism of OLP.
研究领域:
医学
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分子生物学
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代谢组学
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产品关联
DOI
PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2023
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IF 4.4
Jiling Song,Minghui Chen,Fanlei Meng,Jiahui Chen,Zhanwei Wang,Yong Zhang,Jing Cui,Jing Wang,Dongfang Shi
Xanthine oxidase (XO) is a key enzyme in uric acid production, and its molybdopterin (Mo-Pt) domain is an important catalytic center when xanthine and hypoxanthine are oxidated. It is found that the extract of Inonotus obliquus has an inhibitory effect on XO. In this study, five key chemical compounds were initially identified using liquid chromatography-mass spectrometry (LC-MS), and two compounds, osmundacetone ((3 E )-4-(3,4-dihydroxyphenyl)-3-buten-2-one) and protocatechuic aldehyde (3,4-dihydroxybenzaldehyde), were screened as the XO inhibitors by ultrafiltration technology. Osmundacetone bound XO strongly and competitively inhibited XO with a half-maximal inhibitory concentration of 129.08 ± 1.71 μM, and its inhibition mechanism, was investigated. Osmundacetone and XO via static quenching and spontaneously bound with XO with high affinity, primarily via hydrophobic interactions and hydrogen bonds. Molecular docking studies showed that osmundacetone was inserted into the Mo-Pt center and interacted with hydrophobic residues of Phe911, Gly913, Phe914, Ser1008, Phe1009, Thr1010, Val1011, and Ala1079 of XO. In summary, these findings suggest that provide theoretical basis for the research and development of XO inhibitors from Inonotus obliquus .
研究领域:
生物化学
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药物化学
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分子生物学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF THERMAL SPRAY TECHNOLOGY
·
2024
·Vol. 33
·期 5
·1694-1708
·
IF 3.2
Zhang Lu-lu,Ma Wen-chao,Liu Yan-cai,Cao Hong-wei,An Ya-qiong,Huang Hai-fan,Zhang Hao-lin,Qiao Jiang-hao,Li Xiao-wei,Liu Hong-tao
In this paper, as-received Zn powder and as-prepared Zn@(ZnWO 4 /ZnO) core–shell powder were used as feedstocks for plasma spraying to prepare Zn-based composite coatings and nano-ZnO was co-deposited by chemical vapor deposition induced by plasma spraying. The composition and morphology were controllable within certain range by plasma spraying power. The photocatalytic activities of the coatings were analyzed by the degradation efficiency of methyl orange (MO) solution. It was found the photocatalytic activity can be improved with ZnWO 4 decoration. The Zn/ZnO/ZnWO 4 coating which presented tremella-like surface morphology was testified to have the best photocatalytic activity under UV light irradiation among all coatings. On the other hand, the chemical surface modification with 1H,1H,1H,2H-perfluorodecyltriethoxysilane (FAS-17) was implemented to produce superhydrophobic coatings. Among all modified coatings, the ZnWO 4 -containing coating with tremella-like surface structure presented the best superhydrophobicity. By the cyclic wetting and tape adhesion experiments, the tremella-like structure was proved to make a great improvement on the robustness of the Zn-based superhydrophobic coatings. The superhydrophobic and photocatalytic properties provide the possibility for the application of the coating in the fields of antifouling, antibacterial, and photocatalytic degradation of organics. Graphical Abstract
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
Journal of Cancer
·
2022
·
IF 4.478
Xibo Li,Liwei Liu,Na Li,Qingquan Jia,Xiaoshuang Wang,Lihua Zuo,Jianglan Long,Peng Xue,Zhi Sun,Hongyu Zhao
Backgrounds: To identify diagnostic biomarkers for differentiating oral squamous cell carcinoma (OSCC) from oral erosive lichen planus (OELP) and investigate potential biomarkers associated with malignant transformation. Methods: In this study, 72 patients with OSCC, 75 patients with OELP subjects were recruited. Their plasma samples were analyzed by ultra-high-performance liquid chromatography quadrupole-Orbitrap high-resolution accurate mass spectrometry, (UHPLC/Q-Orbitrap HRMS). Principal component analysis, orthogonal partial least square discrimination analysis, t -test analysis and false discovery rate were used to identify different metabolites in patients with OSCC and OELP. The metabolic pathway analysis was performed by MetaboAnalyst. To further screen and identify the biomarkers of OSCC and establish a diagnostic panel, binary logistic regression analysis and receiver operating characteristic analysis were used. The data were then combined with blood samples from healthy individuals for mass spectrometry analysis to obtain biomarkers related to malignant transformation. Results: A total of 20 kinds of endogenous metabolites were identified from plasma samples of OSCC patients and OELP patients. Metabolic pathway analysis showed that the biomarkers associated with OSCC were closely related to cholic acid metabolism and amino acid metabolism. Finally, a diagnostic panel composed of decanoylcarnitine, cysteine and cholic acid was established. This diagnostic panel had good diagnostic efficiency with the AUC=0.998. Other metabolites including uridine, taurine, glutamate, citric acid and LysoPC(18:1) were identified to be general biomarkers for malignant transformation of OELP. Conclusion: Biomarkers based on plasma metabolomics are of great significance for the prediction of malignant transformation of OELP and early diagnosis of OSCC.
研究领域:
医学
·
肿瘤学
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代谢组学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ULTRASOUND IN MEDICINE AND BIOLOGY
·
2020
·
IF 2.514
Yao Liu,Yijin Fan,Huajun Tang,Chengzhi Li
The purpose of this study was to investigate the therapeutic effects of focused ultrasound on the expression of notch1, c-fos and transforming growth factor-β3 (TGF-β3) in genital skin of SD rats with vulvar lichen simplex chronicus (LSC). Fifty-six female SD rats with LSC were randomly divided into therapy and sham groups. The therapy group was exposed to focused ultrasound. The sham group received the same therapy with an instrument that had no power output. Four wk after a singly focused ultrasound therapy, histologic analyses revealed that recovered SD rats accounted for 75% of SD rats in the therapy group and 10.7% in the sham group. Total collagen fiber density in the superficial layer of dermis in the therapy group was significantly lower than that in the sham group. Notch1 and c-fos protein expression in the therapy group was significantly lower than that in the sham group, with the opposite effect present for TGF-β3. Focused ultrasound therapy may inhibit superficial collagen fibrosis in the dermis by affecting expression of notch1, c-fos and TGF-β3 in vulvar skin tissue and consequently reduce the recurrence rate of LSC.
研究领域:
皮肤病学
·
治疗超声
·
分子生物学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）