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Qin Y, Chai B, Sun Y, Zhang X, Fan G, Song G. Amino-functionalized cellulose composite for efficient simultaneous adsorption of tetracycline and copper ions: Performance, mechanism and DFT study. Carbohydr Polym 2024; 332:121935. [PMID: 38431402 DOI: 10.1016/j.carbpol.2024.121935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 03/05/2024]
Abstract
A novel cellulose composite (denoted as PEI@MMA-1) with porous interconnected structure was prepared by adsorbing methyl cellulose (MC) onto microcrystalline cellulose (MCC) and cross-linking polyethyleneimine (PEI) with MCC by the action of epichlorohydrin, which had the excellent adsorption property, wettability and elasticity. The performances of PEI@MMA-1 composite for removing tetracycline (TC), Cu2+ and coexistent pollutant (TC and Cu2+ mixture) were systematically explored. For single TC or Cu2+ contaminant, the maximum adsorption capacities were 75.53 and 562.23 mg/g at 30 °C, respectively, while in the dual contaminant system, they would form complexes and Cu2+ could play a "bridge" role to remarkably promote the adsorption of TC with the maximum adsorption capacities of 281.66 and 253.58 mg/g for TC and Cu2+. In addition, the adsorption kinetics, isotherms and adsorption mechanisms of single-pollutant and dual-pollutant systems have been thoroughly investigated. Theoretical calculations indicated that the amide group of TC molecule with the assistance of Cu2+ interacted with the hydroxyl group of PEI@MMA-1 composite to enhance the TC adsorption capacity. Cycle regeneration and fixed bed column experiments revealed that the PEI@MMA-1 possessed the excellent stability and utility. Current PEI@MMA-1 cellulose composite exhibited a promising application for remediation of heavy metals and antibiotics coexistence wastewater.
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Affiliation(s)
- Yi Qin
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Bo Chai
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China.
| | - Ya Sun
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China.
| | - Xiaohu Zhang
- College of Chemistry, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Guozhi Fan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Guangsen Song
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
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Zhu Q, Liu X, Xu X, Dong X, Xiang J, Fu B, Huang Y, Wang Y, Fan G, Zhang L. Mn-Co-Ce/biochar based particles electrodes for removal of COD from coking wastewater by 3D/HEFL system: Characteristics, optimization, and mechanism. Environ Res 2024; 247:118359. [PMID: 38320717 DOI: 10.1016/j.envres.2024.118359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/01/2023] [Accepted: 12/09/2023] [Indexed: 02/10/2024]
Abstract
In this work, the Mn, Co, Ce co-doped corn cob biochar (MCCBC) as catalytic particle electrodes in a three-dimensional heterogeneous electro-Fenton-like (3D-HEFL) system for the efficient degradation of coking wastewater was investigated. Various characterization methods such as SEM, EDS, XRD, XPS and electrochemical analysis were employed for the prepared materials. The results showed that the MCCBC particle electrodes had excellent electrochemical degradation performances of COD in coking wastewater, and the COD removal and degradation rates of the 3D/HEFL system were 85.35% and 0.0563 min-1 respectively. RSM optimized conditions revealed higher COD removal rate at 89.23% after 31.6 min of electrolysis. The efficient degradability and wide adaptability of the 3D/HEFL system were due to its beneficial coupling mechanism, including the synergistic effect between the system factors (3D and HEFL) as well as the synergistic interactions between the ROS (dominated by •OH and supplemented by O2•-) in the system. Moreover, the COD removal rate of MCCBC could still remain at 81.41% after 5 cycles with a lower ion leaching and a specific energy consumption of 11.28 kWh kg-1 COD. The superior performance of MCCBC, as catalytic particle electrodes showed a great potential for engineering applications for the advanced treatment of coking wastewater.
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Affiliation(s)
- Qiaoyun Zhu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Xueling Liu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Xiaorong Xu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Xiaoyu Dong
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Jingjing Xiang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Benquan Fu
- R&D Center of Wuhan Iron and Steel Company, Wuhan, 430080, China
| | - Yanjun Huang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Yi Wang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Guozhi Fan
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Lei Zhang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, China.
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Liu X, Wang Y, Wu X, Wang Y, Fan G, Huang Y, Zhang L. Preparation of magnetic DTPA-modified chitosan composite microspheres for enhanced adsorption of Pb(II) from aqueous solution. Int J Biol Macromol 2024; 264:130410. [PMID: 38417751 DOI: 10.1016/j.ijbiomac.2024.130410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/06/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
In this study, magnetic DTPA-modified chitosan composite microspheres (MDCM) were prepared by reverse emulsion-double crosslinking method (carbodiimide followed by glutaraldehyde) for removal of Pb(II) from aqueous solution. The obtained magnetic adsorbents were characterized by FTIR, SEM, XRD, VSM, BET, and 13C NMR. The effects of the pH, contact time, initial concentration, and competitive metal cations (Na(I), Ca(II), or Mg(II)) on Pb(II) adsorption were investigated. The results revealed that MDCM exhibited high removal performance over a wide pH range and in the presence of competitive metal cations. The maximum adsorption capacity of MDCM for Pb(II) is 214.63 mg g-1 at pH 3, which is higher than most recently reported magnetic adsorbents. Adsorption kinetics and isotherms can be described by the pseudo-second-order model and Langmuir model, respectively. In addition, MDCM is easy to regenerate and can be reused five cycles with high adsorption capacity. Finally, the adsorption mechanism was further revealed by FTIR and XPS analysis. Overall, MDCM has practical application potential in removing Pb(II) from contaminated wastewater due to its high adsorption efficiency, good reusability, and convenient magnetic separation.
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Affiliation(s)
- Xueling Liu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Yajing Wang
- Hubei Provincial Academy of Eco-environmental Sciences, Wuhan 430072, PR China
| | - Xiaofen Wu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Yi Wang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Guozhi Fan
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Yanjun Huang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China.
| | - Lei Zhang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China.
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Fan G, Shi X, Huo C, Zuo H. Identifying critical genes and pathways of doxorubicin-induced cardiomyopathy via bioinformatics analysis. Eur Rev Med Pharmacol Sci 2024; 28:1641-1650. [PMID: 38497849 DOI: 10.26355/eurrev_202403_35578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
OBJECTIVE The pathogenesis of doxorubicin (DOX) induced cardiomyopathy (DCM) is still uncertain. We aimed to identify the critical genes and pathways involved in DCM based on bioinformatics analysis. MATERIALS AND METHODS The GSE59672 and GSE23598 mice heart tissue microarray data were obtained from Gene Expression Omnibus (GEO) database. The "limma" package of R software was used to screen the differently expressed genes (DEGs). GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) analyses were performed on DEGs by using "clusterProfiler" package in R software. The PPI (Protein - Protein Interaction) network of DEGs constructed by STRING online database and thereby the top 15 hub genes selected by cytoHubba in Cytoscape software. The hub genes interaction was performed by GeneMANIA online database. The "Corrplot" R package was employed to assess hub genes correlation. RESULTS Finally, a total of 492 and 501 DEGs were screened in GSE59672 and GSE23598 datasets, respectively. GO analyses revealed that DEGs were mainly involved in the regulation of extracellular matrix organization, metabolic process, regulation of collagen-containing extracellular matrix. KEGG pathway analyses indicated that DEGs were mainly involved in protein digestion and absorption, ECM-receptor interaction, phagosome, and p53 signaling pathway. Finally, the 8 hub genes were identified, including Col1a1, Col3a1, Col1a2, Col6a1, Ptprc, Tyrobp, Itgb2, and Ctss. CONCLUSIONS The present study identified a series of key genes, including Col1a1, Col3a1, Col1a2, Col6a1, Ptprc, Tyrobp, Itgb2, and Ctss. In addition, important pathways were also discovered. The results of this study may provide a novel molecular mechanism and potential therapeutic targets for DCM.
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Affiliation(s)
- G Fan
- Cardiology Department, Xianyang Central Hospital, Xianyang, Shaanxi Province, China.
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Xu B, Wang Z, Hu J, Zhang L, Zhang Z, Liang H, Zhang Y, Fan G. Dy-Modified Mn/TiO 2 Catalyst Used for the Selective Catalytic Reduction of NO in Ammonia at Low Temperatures. Molecules 2024; 29:277. [PMID: 38202858 PMCID: PMC10781053 DOI: 10.3390/molecules29010277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/23/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024] Open
Abstract
A novel Mn/TiO2 catalyst, prepared through modification with the rare-earth metal Dy, has been employed for low-temperature selective catalytic reduction (SCR) denitrification. Anatase TiO2, with its large specific surface area, serves as the carrier. The active component MnOx on the TiO2 carrier is modified using Dy. DyxMn/TiO2, prepared via the impregnation method, exhibited remarkable catalytic performance in the SCR of NO with NH3 as the reducing agent at low temperatures. Experiments and characterization revealed that the introduction of a suitable amount of the rare-earth metal Dy can effectively enhance the catalyst's specific surface area and the gas-solid contact area in catalytic reactions. It also significantly increases the concentration of Mn4+, chemisorbed oxygen, and weak acid sites on the catalyst surface. This leads to a notable improvement in the reduction performance of the DyMn/TiO2 catalyst, ultimately contributing to the improvement of the NH3-SCR denitrification performance at low temperatures. At 100 °C and a space velocity of 24,000 h-1, the Dy0.1Mn/TiO2 catalyst can achieve a 98% conversion rate of NOx. Furthermore, its active temperature point decreases by 60 °C after the modification, highlighting exceptional catalytic efficacy at low temperatures. By doubling the space velocity, the NOx conversion rate of the catalyst can still reach 96% at 130 °C, indicating significant operational flexibility. The selectivity of N2 remained stable at over 95% before reaching 240 °C.
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Affiliation(s)
- Bing Xu
- Hubei Provincial Engineering Technology Research Center of Agricultural and Sideline Resources, Chemical Engineering and Utilization, School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (Z.W.); (J.H.); (L.Z.); (Z.Z.); (H.L.); (Y.Z.); (G.F.)
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Liu J, Ding Y, Qiu W, Cheng Q, Xu C, Fan G, Song G, Xiao B. Enhancing anaerobic digestion of sulphate wastewater by adding nano-zero valent iron. Environ Technol 2023; 44:3988-3996. [PMID: 35546259 DOI: 10.1080/09593330.2022.2077137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
In this paper, the effects of nano-zero valent iron (nZVI) on anaerobic digestion of sulphate wastewater with different SO 4 2 - /COD ratios, including the COD removal rate, methane yield, intermediate products and the change of microbial community structure, were investigated. The results showed that nZVI could effectively enhance the treatment efficiency and methane yield. Compared with the control group without nZVI, the methane yield increased from 348.6833 to 1007.05 mL CH4/gCODremoval with 4 g nZVI loading at SO 4 2 - /COD = 0.1. nZVI could make electron flow from sulphate reduction to methane production, which increased methane yield even at high sulphate concentration. The microbial community analysis showed that adding nZVI could increase the abundance of acetoclastic methanogens, which accelerated hydrolysis acidification.
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Affiliation(s)
- Jiacheng Liu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Yongyu Ding
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Wen Qiu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Qunpeng Cheng
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Chenxi Xu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Guozhi Fan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Guangsen Song
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Bo Xiao
- School of Environmental Engineering, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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Guo Q, Sun Q, Bian X, Wang M, Dong H, Yin H, Dai X, Fan G, Chen G. Development and validation of a multiphase CT radiomics nomogram for the preoperative prediction of lymphovascular invasion in patients with gastric cancer. Clin Radiol 2023; 78:e552-e559. [PMID: 37117048 DOI: 10.1016/j.crad.2023.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 03/13/2023] [Accepted: 03/22/2023] [Indexed: 04/30/2023]
Abstract
AIM To develop a nomogram to predict lymphovascular invasion (LVI) in gastric cancer by integrating multiphase computed tomography (CT) radiomics and clinical risk factors. MATERIALS AND METHODS One hundred and seventy-two gastric cancer patients (121 training and 51 validation) with preoperative contrast-enhanced CT images and clinicopathological data were collected retrospectively. The clinical risk factors were selected by univariate and multivariate regression analysis. Radiomic features were extracted and selected from the arterial phase (AP), venous phase (VP), and delayed phase (DP) CT images of each patient. Clinical risk factors, radiomic features, and integration of both were used to develop the clinical model, radiomic models, and nomogram, respectively. RESULTS Radiomic features from AP (n=6), VP (n=6), DP (n=7) CT images and three selected clinical risk factors were used for model development. The nomogram showed better performance than the AP, VP, DP, and clinical models in the training and validation datasets, providing areas under the curves (AUCs) of 0.890 (95% CI: 0.820-0.940) and 0.885 (95% CI:0.765-0.957), respectively. All models indicated good calibration, and decision curve analysis proved that the net benefit of the nomogram was superior to that of the clinical and radiomic models throughout the vast majority of the threshold probabilities. CONCLUSIONS The nomogram integrating multiphase CT radiomics and clinical risk factors showed favourable performance in predicting LVI of gastric cancer, which may benefit clinical practice.
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Affiliation(s)
- Q Guo
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - Q Sun
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - X Bian
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - M Wang
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - H Dong
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - H Yin
- Institute of Advanced Research, Beijing Infervision Technology Co., Ltd, Beijing, China
| | - X Dai
- Department of Pathology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - G Fan
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - G Chen
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China.
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Fan G, Peng Q, Chen Y, Long Y, Bai J, Song G, Cheng Q. Preparation of biodegradable composite films based on carboxymethylated holocellulose from wheat straw. Int J Biol Macromol 2023; 242:124868. [PMID: 37201885 DOI: 10.1016/j.ijbiomac.2023.124868] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/06/2023] [Accepted: 05/11/2023] [Indexed: 05/20/2023]
Abstract
Holocellulose was extracted from wheat straw and catalytically transformed into carboxymethylated holocellulose (CMHCS) to prepare a biodegradable composite film. By changing the type and amount of catalyst, the carboxymethylation of the holocellulose was optimized with respect to the degree of substitution (DS). A high DS of 2.46 was achieved in the presence of a cocatalyst composed of polyethylene glycol and cetyltrimethylammonium bromide. The effect of DS on the properties of CMHCS-derived biodegradable composite films was further investigated. Compared to pristine holocellulose, the mechanical properties of the composite film were significantly improved and increased with increasing DS. The tensile strength, elongation at break, and Young's modulus increased from 6.58 MPa, 51.4 %, and 26.13 MPa for the unmodified holocellulose-based composite film to 14.81 MPa, 89.36 %, and 81.73 MPa for the film derived from the CMHCS with a DS of 2.46. The biodegradability of the composite film was assessed under soil burial biodisintegration conditions and reached 71.5 % degradation after 45 d. Additionally, a possible degradation process for the composite film was proposed. The results indicated that the CMHCS-derived composite film has good comprehensive performance, and CMHCS is expected to be applied in the field of biodegradable composite materials.
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Affiliation(s)
- Guozhi Fan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 433023, China.
| | - Qiao Peng
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 433023, China
| | - Yi Chen
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 433023, China
| | - Yifei Long
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 433023, China
| | - Juan Bai
- Ecoplast Technologies Inc, Wuhan 430202, China
| | - Guangsen Song
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 433023, China
| | - Qunpeng Cheng
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 433023, China
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Xiong M, Chai B, Fan G, Zhang X, Wang C, Song G. Immobilization CoOOH nanosheets on biochar for peroxymonosulfate activation: Built-in electric field mediated radical and non-radical pathways. J Colloid Interface Sci 2023; 638:412-426. [PMID: 36758254 DOI: 10.1016/j.jcis.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/18/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023]
Abstract
The strong electron interaction between metal oxide-carbon-based catalyst components plays a vital role in the peroxymonosulfate (PMS) activation for pollutant degradation. Herein, a novel CoOOH nanosheets anchored on rape straw-derived biochar (BC) surface (labeled as CoOOH/BC) as an efficient PMS activator toward degrading sulfamethoxazole (SMX) was synthesized. Experimental results indicated that integrating CoOOH nanosheets on the BC surface could inhibit CoOOH aggregation to increase the specific surface areas, exert a component synergistic effect to enhance activation degradation activity, and improve the catalyst stability. As a result, a 96 % degradation efficiency of SMX was achieved within 20 min over 20 wt% CoOOH/BC composite catalyst under the optimal conditions. Density functional theory (DFT) calculations disclosed that a built-in electric field (BIEF) pointing from BC to CoOOH was constructed at their interface, which could mediate PMS activation for reactive oxygen species (ROS) generation and induce direct electron transfer from SMX to PMS, resulting in efficient SMX degradation via both radical and non-radical pathways. Moreover, quenching experiments and electron paramagnetic resonance (EPR) measurements confirmed that single oxide (1O2) and superoxide radical (O2·-) are the dominant active species in the current system. Additionally, the possible SMX degradation routes were reasonably proposed based on liquid chromatography-mass spectrometry (LC-MS) results. This work provides an in-depth understanding of the role of BIEF in PMS activation, and expands the application of biochar-based materials in the field of environmental remediation.
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Affiliation(s)
- Minghui Xiong
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Bo Chai
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China.
| | - Guozhi Fan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Xiaohu Zhang
- College of Science, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Chunlei Wang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Guangsen Song
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
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Zhang L, Li Q, Zhu J, Liu H, Liu X, Wang Y, Fan G, Huang Y, Li L. H 2O 2 modified peanut shell-derived biochar/alginate composite beads as a green adsorbent for removal of Cu(II) from aqueous solution. Int J Biol Macromol 2023; 240:124466. [PMID: 37062377 DOI: 10.1016/j.ijbiomac.2023.124466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/05/2023] [Accepted: 04/11/2023] [Indexed: 04/18/2023]
Abstract
In this study, a novel composite bead (MPB-ALG) was prepared by encapsulating H2O2 modified peanut shell-derived biochar (MPB) into alginate matrix through a facile method. The structure and properties of prepared materials were characterized using FTIR, BET, SEM, and XPS. Batch adsorption experiments were performed to compare Cu(II) adsorption performance of MPB, plain alginate beads (ALG) and MPB-ALG. The effect parameters of the components, solution pH, contact time, initial concentration and coexisting ions were studied systematically. The results showed that the maximum adsorption capacity of the optimized MPB-ALG-1 (MPB/alginate = 1:1 w/w%) was 117.4 mg g-1 at pH 5, which was much higher than that of MPB (37.4 mg g-1). The adsorption kinetics and isotherms data of Cu(II) on MPB-ALG-1 were well described by Elovich kinetic model and Freundlich adsorption isotherm. Compared with plain ALG beads, MPB-ALG-1 exhibited better reusability and anti-interference of coexisting ions. Finally, the adsorption mechanisms of Cu(II) on MPB-ALG-1 beads were revealed by FTIR and XPS analysis. The experimental results demonstrated that MPB-ALG-1 beads can be used as an environmentally friendly and efficient adsorbent for the removal of Cu(II) from wastewater.
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Affiliation(s)
- Lei Zhang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Qimei Li
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Jiaqi Zhu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Heng Liu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Xueling Liu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Yi Wang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Guozhi Fan
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Yanjun Huang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China.
| | - Likun Li
- China-Ukraine Institute of Welding, Guangdong Academy of Sciences, Guangzhou 510650, PR China.
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Zhang L, Liu H, Zhu J, Liu X, Li L, Huang Y, Fu B, Fan G, Wang Y. Effective Removal of Fe (III) from Strongly Acidic Wastewater by Pyridine-Modified Chitosan: Synthesis, Efficiency, and Mechanism. Molecules 2023; 28:molecules28083445. [PMID: 37110678 PMCID: PMC10143584 DOI: 10.3390/molecules28083445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
A novel pyridine-modified chitosan (PYCS) adsorbent was prepared in a multistep procedure including the successive grafting of 2-(chloromethyl) pyridine hydrochloride and crosslinking with glutaraldehyde. Then, the as-prepared materials were used as adsorbents for the removal of metal ions from acidic wastewater. Batch adsorption experiments were carried out to study the impact of various factors such as solution pH value, contact time, temperature, and Fe (III) concentration. The results showed that the absorbent exhibited a high capacity of Fe (III) and the maximum adsorption capacity was up to 66.20 mg/g under optimal experimental conditions (the adsorption time = 12 h, pH = 2.5, and T = 303 K). Adsorption kinetics and isotherm data were accurately described by the pseudo-second-order kinetic model and Sips model, respectively. Thermodynamic studies confirmed that the adsorption was a spontaneous endothermic process. Moreover, the adsorption mechanism was investigated using Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The results revealed the pyridine group forms a stable chelate with iron (III) ions. Therefore, this acid-resistant adsorbent exhibited excellent adsorption performance for heavy metal ions from acidic wastewater compared to the conventional adsorbents, helping realize direct decontamination and secondary utilization.
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Affiliation(s)
- Lei Zhang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Heng Liu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Jiaqi Zhu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Xueling Liu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Likun Li
- China-Ukraine Institute of Welding, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Yanjun Huang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Benquan Fu
- R & D Center of Wuhan Iron and Steel Company, Wuhan 430080, China
| | - Guozhi Fan
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Yi Wang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
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12
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Fan G, Xie T, Tang L, Han X, Shi Y. 179P Integrative analysis revealed the signature of cancer stem cells and its immunosuppressive role in lung adenocarcinoma. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00433-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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13
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Xu C, Ding Y, Liu J, Huang W, Cheng Q, Fan G, Yan J, Zhang S, Song G, Xiao B. Anaerobic digestion of sulphate wastewater mediated by biochar. Environ Technol 2023; 44:1667-1678. [PMID: 34822322 DOI: 10.1080/09593330.2021.2011428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 11/14/2021] [Indexed: 06/13/2023]
Abstract
In this paper, the influences of biochar on the anaerobic digestion of sulphate wastewater, including the COD removal rate, methane yield, intermediate products and the change of microbial community structure, were investigated. The results showed that sulphate could promote the anaerobic digestion with the SO42-/COD ratio increasing from 0 to 0.1, while the activity of MPB was inhibited, which led to the decrease of COD removal rate and methane yield with the SO42-/COD ratio increasing from 0.1 to 2. At 1 g biochar loading, 344.97 mL CH4/gCODremoval was obtained compared with the control group (220.70 CH4/gCODremoval) at 2 of SO42-/COD. Biochar could also reduce the secondary accumulation of NH4+-N and TVFA. Meanwhile, methanogenic microorganisms were selectively enriched especially for methanobacterium, methanosaeta and methanolinea, while the growth of SRB was inhibited with biochar addition.
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Affiliation(s)
- Chenxi Xu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Yongyu Ding
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Jiacheng Liu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Wenwen Huang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Qunpeng Cheng
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Guozhi Fan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Juntao Yan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Shunxi Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Guangsen Song
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Bo Xiao
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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Xie T, Fan G, Huang L, Tang L, Lou N, Xing P, Han X, Shi Y. 181P Comprehensive analysis on proteasome-related genes and their correlation with immunity and immunotherapy in squamous cell lung cancer. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00434-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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15
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McSloy A, Fan G, Sun W, Hölzer C, Friede M, Ehlert S, Schütte NE, Grimme S, Frauenheim T, Aradi B. TBMaLT, a flexible toolkit for combining tight-binding and machine learning. J Chem Phys 2023; 158:034801. [PMID: 36681630 DOI: 10.1063/5.0132892] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Tight-binding approaches, especially the Density Functional Tight-Binding (DFTB) and the extended tight-binding schemes, allow for efficient quantum mechanical simulations of large systems and long-time scales. They are derived from ab initio density functional theory using pragmatic approximations and some empirical terms, ensuring a fine balance between speed and accuracy. Their accuracy can be improved by tuning the empirical parameters using machine learning techniques, especially when information about the local environment of the atoms is incorporated. As the significant quantum mechanical contributions are still provided by the tight-binding models, and only short-ranged corrections are fitted, the learning procedure is typically shorter and more transferable as it were with predicting the quantum mechanical properties directly with machine learning without an underlying physically motivated model. As a further advantage, derived quantum mechanical quantities can be calculated based on the tight-binding model without the need for additional learning. We have developed the open-source framework-Tight-Binding Machine Learning Toolkit-which allows the easy implementation of such combined approaches. The toolkit currently contains layers for the DFTB method and an interface to the GFN1-xTB Hamiltonian, but due to its modular structure and its well-defined interfaces, additional atom-based schemes can be implemented easily. We are discussing the general structure of the framework, some essential implementation details, and several proof-of-concept applications demonstrating the perspectives of the combined methods and the functionality of the toolkit.
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Affiliation(s)
- A McSloy
- Warwick Centre for Predictive Modelling, School of Engineering, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - G Fan
- Bremen Center of Computational Materials Science, University of Bremen, 28359 Bremen, Germany
| | - W Sun
- Bremen Center of Computational Materials Science, University of Bremen, 28359 Bremen, Germany
| | - C Hölzer
- Mulliken Center for Theoretical Chemistry, University of Bonn, 53115 Bonn, Germany
| | - M Friede
- Mulliken Center for Theoretical Chemistry, University of Bonn, 53115 Bonn, Germany
| | - S Ehlert
- Mulliken Center for Theoretical Chemistry, University of Bonn, 53115 Bonn, Germany
| | - N-E Schütte
- Bremen Center of Computational Materials Science, University of Bremen, 28359 Bremen, Germany
| | - S Grimme
- Mulliken Center for Theoretical Chemistry, University of Bonn, 53115 Bonn, Germany
| | - T Frauenheim
- Bremen Center of Computational Materials Science, University of Bremen, 28359 Bremen, Germany
| | - B Aradi
- Bremen Center of Computational Materials Science, University of Bremen, 28359 Bremen, Germany
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16
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Fu M, Yan J, Chai B, Fan G, Ding D, Song G. In situ synthesis of CoFe-LDH on biochar for peroxymonosulfate activation toward sulfamethoxazole degradation: Cooperation of radical and non-radical pathways. NEW J CHEM 2023. [DOI: 10.1039/d2nj05132j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Developing an efficient, low-cost and stable catalyst to activate peroxymonosulfate (PMS) for pollutant degradation is crucial in environmental remediation. Herein, Co1Fe1 layered double hydroxide (Co1Fe1-LDH) was in situ loaded on...
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17
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Tu M, Zeng J, Zhang J, Fan G, Song G. Unleashing the power within short-read RNA-seq for plant research: Beyond differential expression analysis and toward regulomics. Front Plant Sci 2022; 13:1038109. [PMID: 36570898 PMCID: PMC9773216 DOI: 10.3389/fpls.2022.1038109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
RNA-seq has become a state-of-the-art technique for transcriptomic studies. Advances in both RNA-seq techniques and the corresponding analysis tools and pipelines have unprecedently shaped our understanding in almost every aspects of plant sciences. Notably, the integration of huge amount of RNA-seq with other omic data sets in the model plants and major crop species have facilitated plant regulomics, while the RNA-seq analysis has still been primarily used for differential expression analysis in many less-studied plant species. To unleash the analytical power of RNA-seq in plant species, especially less-studied species and biomass crops, we summarize recent achievements of RNA-seq analysis in the major plant species and representative tools in the four types of application: (1) transcriptome assembly, (2) construction of expression atlas, (3) network analysis, and (4) structural alteration. We emphasize the importance of expression atlas, coexpression networks and predictions of gene regulatory relationships in moving plant transcriptomes toward regulomics, an omic view of genome-wide transcription regulation. We highlight what can be achieved in plant research with RNA-seq by introducing a list of representative RNA-seq analysis tools and resources that are developed for certain minor species or suitable for the analysis without species limitation. In summary, we provide an updated digest on RNA-seq tools, resources and the diverse applications for plant research, and our perspective on the power and challenges of short-read RNA-seq analysis from a regulomic point view. A full utilization of these fruitful RNA-seq resources will promote plant omic research to a higher level, especially in those less studied species.
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Affiliation(s)
- Min Tu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Jian Zeng
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, Guangdong, China
| | - Juntao Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Guozhi Fan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Guangsen Song
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
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18
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Wang J, Si H, Liu Y, Song J, Wang P, Luo H, Chen S, Fan G, Rao X, Wang Z, Liao S. Experimental evaluation and structure-activity relationship analysis of bridged-ring terpenoid derivatives as novel Blattella germanica repellent. SAR QSAR Environ Res 2022; 33:969-986. [PMID: 36548121 DOI: 10.1080/1062936x.2022.2154838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
Cockroaches are urban pests that are very difficult to control. Using repellents is a green, safe and effective strategy for their control. In order to find novel cockroach repellents, the repellent activity of 45 bridged-ring terpenoid derivatives synthesized from β-pinene against Blattella germanica was tested. The relationship between the molecular structure of these bridged-ring terpenoid derivatives and their repellent activity against Blattella germanica was also analysed. The results show that some of the bridged-ring terpenoid derivatives exhibit good repellent activity against Blattella germanica, and six compounds (RR = 60.44-87.32%) show higher repellent activity against Blattella germanica than DEET (RR = 54.77%), making them promising for development as new cockroach repellents. Quantitative structure-activity relationship (QSAR) analysis revealed that the HOMO-1 energy, Kier and Hall index (order 2), Balaban index, and relative positive charged surface area of bridged-ring terpenoid derivatives have effects on repellent activity against Blattella germanica. The present study may provide a theoretical basis for the high-value use of β-pinene and can be helpful to the development of novel repellents against Blattella germanica.
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Affiliation(s)
- J Wang
- East China Woody Fragrance and Flavor Engineering Research Center, National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
- Camphor Engineering Research Center of National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
| | - H Si
- East China Woody Fragrance and Flavor Engineering Research Center, National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
- Camphor Engineering Research Center of National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
| | - Y Liu
- Hydrology and Water Resources Monitoring Center, Lower Reaches of the Ganjiang River, Yichun, China
| | - J Song
- Department of Natural Sciences, University of Michigan-Flint, Flint, Michigan, USA
| | - P Wang
- East China Woody Fragrance and Flavor Engineering Research Center, National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
- Camphor Engineering Research Center of National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
| | - H Luo
- East China Woody Fragrance and Flavor Engineering Research Center, National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
- Camphor Engineering Research Center of National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
| | - S Chen
- East China Woody Fragrance and Flavor Engineering Research Center, National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
- Camphor Engineering Research Center of National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
| | - G Fan
- East China Woody Fragrance and Flavor Engineering Research Center, National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
- Camphor Engineering Research Center of National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
| | - X Rao
- College of Chemical Engineering, Huaqiao University, Xiamen, China
| | - Z Wang
- East China Woody Fragrance and Flavor Engineering Research Center, National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
- Camphor Engineering Research Center of National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
| | - S Liao
- East China Woody Fragrance and Flavor Engineering Research Center, National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
- Camphor Engineering Research Center of National Forestry and Grassland Administration, College of Forestry, Jiangxi Agricultural University, Nanchang, China
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Qin Y, Chai B, Wang C, Yan J, Fan G, Song G. New insight into remarkable tetracycline removal by enhanced graphitization of hierarchical porous carbon aerogel: Performance and mechanism. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Chen W, Peng Q, Fan G, Cheng Q, Tu M, Song G. Catalytic transfer hydrogenation of furfural to furfuryl alcohol over Al-containing ferrihydrite. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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21
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Fan G. 748P Development of a CCR8 monoclonal antibody for the treatment of cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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22
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Xu F, Chai B, Liu Y, Liu Y, Fan G, Song G. Superior photo-Fenton activity toward tetracycline degradation by 2D α-Fe2O3 anchored on 2D g-C3N4: S-scheme heterojunction mechanism and accelerated Fe3+/Fe2+ cycle. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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23
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Arias L, Longa A, Jargot G, Pomerleau A, Lassonde P, Fan G, Safaei R, Corkum PB, Boschini F, Ibrahim H, Légaré F. Few-cycle Yb laser source at 20 kHz using multidimensional solitary states in hollow-core fibers. Opt Lett 2022; 47:3612-3615. [PMID: 35838743 DOI: 10.1364/ol.464428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
We demonstrate ultrashort pulse compression from 300 fs down to 17 fs at a repetition rate of 20 kHz and 160-µJ output pulse energy (3.2 W of average power) using multidimensional solitary states (MDSS) in a 1-meter hollow-core fiber (HCF) filled with N2O. Under static pressure, thermal limitations at this repetition rate annihilate the MDSS with suppression of spectral broadening. The results obtained in differential pressure configuration mitigate thermal effects and significantly increase the range of repetition rate over which MDSS can be used to compress sub-picosecond laser pulses.
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Goh SN, Fan G, Cheng S, Khaing N. COVID 19 pandemic: Impact of changes experienced on social workers' professional quality of life in Singapore. Soc Work Health Care 2022; 61:298-322. [PMID: 35819057 DOI: 10.1080/00981389.2022.2092582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 04/19/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
COVID-19 has impacted all spheres of life massively. Among the emerging studies on the psychosocial impact of the pandemic, few studies look specifically at how social workers are impacted. To understand this gap, this study surveyed 337 social workers. The findings showed that changes experienced in the workplace were enormous and caused secondary traumatic stress while engendering compassion satisfaction among social workers, but the presence of social support moderated to keep the secondary traumatic stress at bay. Resilience mediated association between social and workplace support and compassion fatigue. Social support seemed to have the largest effect on reducing stress through resilience. Workplace support also helped mitigate burnout. In conclusion, continued social and workplace support will be key to supporting social workers during a pandemic.
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Affiliation(s)
- S N Goh
- Medical Social Services, Changi General Hospital, Singapore, Singapore
| | - G Fan
- Psychosocial Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - S Cheng
- Medical Social Services, Sengkang General Hospital, Singapore, Singapore
| | - Nee Khaing
- Health Services Research, Changi General Hospital, Singapore, Singapore
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25
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Litvinov IA, Brusko VV, Safin DA, Lodochnikova OA, Li M, Li LL, Li P, Dong WK, Aksenov SM, Yamnova NA, Chukanov NV, Kabanova NA, Kobeleva EA, Deyneko DV, Krivovichev SV, Liu L, Wu Y, Ma L, Fan G, Gao W, Wang W, Ma X, Sukhikh AS, Khranenko SP, Basova TV, Gromilov SA. Erratum to: CONTENT OF THE ISSUE 2 (2022). J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622040205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Qin Y, Chai B, Wang C, Yan J, Fan G, Song G. Removal of tetracycline onto KOH-activated biochar derived from rape straw: Affecting factors, mechanisms and reusability inspection. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128466] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Liu L, Wu Y, Ma L, Fan G, Gao W, Wang W, Ma X. A NEW MELAMINE-BASED Cu(I) COORDINATION POLYMER WITH AN EXCELLENT PHOTOCATALYTIC ACTIVITY, THERAPEUTIC AND NURSING EFFECTS ON THE BLOOD GLUCOSE REGULATION. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622020111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Yang J, Wang J, Zhai D, Zhou X, Yan J, Liu R, Zhang B, Fan G, Cai W. Low-dose three-dimensional CT angiography for the evaluation of posterolateral protrusion of the vertebral artery over the posterior arch of the atlas: a quantitative anatomical comparison study of the rotational and neutral positions. Clin Radiol 2022; 77:384-389. [PMID: 35177230 DOI: 10.1016/j.crad.2022.01.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/18/2022] [Indexed: 11/03/2022]
Abstract
AIM To investigate the changes in relevant anatomical parameters of posterolateral protrusion of the vertebral artery (VA) between head-neck rotational and neutral positions using low-dose three-dimensional computed tomography angiography (3D-CTA). MATERIALS AND METHODS Low-dose 3D-CTA images obtained for various craniocervical diseases in 36 non-dominant VA side patients with neutral, left and right head-neck rotational positions were evaluated. The relevant parameters from superior and inferior views, including external diameter (ED), internal diameter (ID), transverse diameter (TD), heights and diameters of posterolateral protrusion of the VA over the posterior arch of the atlas in the neutral and rotational positions, were recorded and compared. RESULTS There was no significant differences in the rotational angle (left/right: 31.23 ± 6.60/29.94 ± 6.09°, p>0.05). There were no significant differences in heights and diameters of bilateral VA between rotational and neutral positions (all p>0.05). The contralateral ID, ED, and TD of the rotational positions were significantly shorter than those of the neutral position (all p<0.05), while there were no significant differences in the three ipsilateral diameters (all p>0.05). CONCLUSIONS Posterolateral protrusion of the VA is not uncommon in the population, and surgeons should be aware of its presence, especially the increased possibility of injury to the VA caused by head-neck rotation, during the operation; thus, preoperative evaluation by low-dose 3D-CTA should be considered.
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Affiliation(s)
- J Yang
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - J Wang
- Department of Radiology, Jiaxing Hospital of Traditional Chinese Medicine, Jiaxing, Zhejiang, 314000, China
| | - D Zhai
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - X Zhou
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - J Yan
- Department of Spinal Surgery, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - R Liu
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - B Zhang
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - G Fan
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China
| | - W Cai
- Department of Radiology, The Second Affiliated Hospital of Soochow University, San Xiang Road No. 1055, Suzhou, Jiangsu, 215004, China; State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, 215123, China.
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29
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Xu F, Yan J, Chai B, Fan G, Song G. Iron-doped g-C 3N 4 catalysts fabricated by forming Fe–N moieties with outstanding photo-Fenton activity toward tetracycline degradation. NEW J CHEM 2022. [DOI: 10.1039/d2nj03175b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Porous Fe-doped g-C3N4 photo-Fenton catalysts are successfully prepared by a convenient one-step pyrolysis strategy and applied in the degradation of tetracycline hydrochloride.
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Affiliation(s)
- Fang Xu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - Juntao Yan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - Bo Chai
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - Guozhi Fan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - Guangsen Song
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
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Yan J, Liu J, Sun Y, Song G, Ding D, Fan G, Chai B, Wang C, Sun L. Investigation on the Preparation of Rice Straw-Derived Cellulose Acetate and Its Spinnability for Electrospinning. Polymers (Basel) 2021; 13:polym13203463. [PMID: 34685223 PMCID: PMC8538335 DOI: 10.3390/polym13203463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 01/31/2023] Open
Abstract
Rice straw-derived cellulose (RSC) with purity of 92 wt.% was successfully extracted from rice straw by a novel and facile strategy, which integrated the C2H5OH/H2O autocatalytic process, dilute alkali treatment and H2O2 bleaching process. Influencing factors of the cellulose extraction were systematically examined, such as ethanol concentration, alkali concentration, H2O2 bleaching process and so on; the optimal extraction conditions of cellulose was determined. A series of rice straw-derived cellulose acetate (RSCA) with different degree of substitution (DS) were prepared by the acetylation reaction; the effects of Ac2O/cellulose ratio, reaction temperature and reaction time on the acetylation reaction were investigated. Results of FTIR and XRD analysis demonstrated that highly purified RSC and RSCA were prepared comparing with the commercial cellulose and cellulose acetate. Solubility analysis of RSCA with different DS indicated as-prepared RSCA with DS of 2.82 possessed the best solubleness, which was suitable for electrospinning. Moreover, the flexible RSCA fibrous membrane was easily fabricated by a facile electrospinning method. Our proposed method provided a strategy for realizing the high-value utilization of waste rice straw resource, as prepared RSC and RSCA can be used as chemical raw material, and electrospun RSCA fibrous membrane has various applications in medical materials, food packaging, water purification and so on.
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Affiliation(s)
- Juntao Yan
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
- Correspondence: (J.Y.); (C.W.); Tel.: +86-27-83940468 (J.Y. & C.W.); Fax: +86-27-83937409 (J.Y. & C.W.)
| | - Jinhong Liu
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Ya Sun
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Guangsen Song
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Deng Ding
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Guozhi Fan
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Bo Chai
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Chunlei Wang
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
- Correspondence: (J.Y.); (C.W.); Tel.: +86-27-83940468 (J.Y. & C.W.); Fax: +86-27-83937409 (J.Y. & C.W.)
| | - Linbing Sun
- College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China;
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Huang W, Liu J, Rao N, Fan G, Yan J, Cheng Q, Song G. Influence of surfactant on CO 2 adsorption of amine-functionalized MCM-41. Environ Technol 2021; 43:1-9. [PMID: 34279187 DOI: 10.1080/09593330.2021.1958012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
Concerning the increasing greenhouse effect, the development of efficient CO2 adsorbents is very important. In this study, the influence of surfactant on the adsorption performance of amine-functionalized MCM-41 was analysed. The results showed that the residual amount of surfactant in MCM-41 was gradually decreased with the increase of calcination temperature which improved the pore structure. The maximum adsorption capacity (5.495 mmol/g) appeared at PEI-MCM-41-100°C indicated that the adsorption capacity could be improved under the function of surfactant. By calculating the diffusion coefficient of CO2 adsorption process in PEI-MCM-41-100/200/300/400/550°C, the diffusion resistance of CO2 was the lowest in PEI-MCM-41-100°C, which directly proved that the synergism of surfactant and organic amine could reduce the diffusion resistance of CO2 in the pore.
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Affiliation(s)
- Wenwen Huang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Jiacheng Liu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Na Rao
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Guozhi Fan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Juntao Yan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Qunpeng Cheng
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Guangsen Song
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
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Zhang J, Gao X, Zheng X, Yang Y, Fan G, Shi Y, Wang J, Mu C. A high stem to leaf ratio reduced rainfall use efficiency under altered rainfall patterns in a semi-arid grassland in northeast China. Plant Biol (Stuttg) 2021; 23:760-769. [PMID: 33915008 DOI: 10.1111/plb.13278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/21/2021] [Indexed: 06/12/2023]
Abstract
Rainfall use efficiency (RUE) is crucial for understanding the changes in grassland productivity due to variations in future rainfall patterns. Recently, numerous studies have been conducted on the relationship between RUE and the amount of rainfall, but there has been little research on the influence of rainfall distribution and the interactive effect of rainfall amounts and distribution on RUE. Here, a simulated rainfall experiment was conducted to evaluate the impacts of rainfall amount (average rainfall amount (R0), 334 mm; decreased (R-) and increased (R+) rainfall amounts, 233 mm and 434 mm, respectively) and dry intervals (comprising 6-day, 9-day, 12-day, 15-day, 18-day and 21-day intervals between rainfall) on productivity and RUE in Leymus chinensis (Trin.) Tzvel., a dominant grass of the Eastern Eurasian Steppe. Our results showed that (1) for biomass production and RUE, moderate extension of dry intervals was conducive to enhancing total biomass production and RUE. The peak values of total biomass and RUE appeared during the 15-day interval for R-, and the 18-day interval for R0 and R+. (2) For biomass allocation, extension of dry intervals decreased the stem to leaf ratio (S/L) and the root to shoot ratio (R/S). (3) Further, the S/L ratio was significantly negatively correlated with RUE. These results suggest that variations in rainfall patterns can alter the RUE by changing the S/L ratio, and finally influence biomass production in L. chinensis. These findings have important implications for understanding and predicting the effect of future climate change on productivity in semi-arid grassland.
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Affiliation(s)
- J Zhang
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, 130024, China
| | - X Gao
- Meteorological Observatory of Jilin Province, Changchun Jilin Province, 130062, China
| | - X Zheng
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, 130024, China
| | - Y Yang
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, 130024, China
| | - G Fan
- Key Laboratory of Photobiology, Institute of botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Y Shi
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, 130024, China
| | - J Wang
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, 130024, China
| | - C Mu
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, 130024, China
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Fan G, Carpeggiani PA, Tao Z, Coccia G, Safaei R, Kaksis E, Pugzlys A, Légaré F, Schmidt BE, Baltuška A. 70 mJ nonlinear compression and scaling route for an Yb amplifier using large-core hollow fibers. Opt Lett 2021; 46:896-899. [PMID: 33577542 DOI: 10.1364/ol.412296] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 12/14/2020] [Indexed: 06/12/2023]
Abstract
In this Letter, we investigate the energy-scaling rules of hollow-core fiber (HCF)-based nonlinear pulse propagation and compression merged with high-energy Yb-laser technology, in a regime where the effects such as plasma disturbance, optical damages, and setup size become important limiting parameters. As a demonstration, 70 mJ 230 fs pulses from a high-energy Yb laser amplifier were compressed down to 40 mJ 25 fs by using a 2.8-m-long stretched HCF with a core diameter of 1 mm, resulting in a record peak power of 1.3 TW. This work presents a critical advance of a high-energy pulse (hundreds of mJ level) nonlinear interactions platform based on high energy sub-ps Yb technology with considerable applications, including driving intense THz, X-ray pulses, Wakefield acceleration, parametric wave mixing and ultraviolet generation, and tunable long-wavelength generation via enhanced Raman scattering.
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Qi X, Fan G, Jia H. The probiotic Lactobacillus casei Shirota attenuates symptoms of vestibular migraine: a randomised placebo-controlled double-blind clinical trial. Benef Microbes 2020; 11:469-476. [PMID: 32865025 DOI: 10.3920/bm2020.0058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Vestibular migraine (VM) has emerged as one of the major vestibular syndromes. Although probiotics have exhibited beneficial effects on migraine headache, its effect on VM is not clear. This trial aimed to investigate the treatment efficacy of the probiotic Lactobacillus casei Shirota (LcS) on symptoms of VM. 247 VM patients were enrolled, of which 204 eligible patients receiving either LcS or placebo on a daily basis completed the 4 month study. They were re-visited at 2 and 4 months after study initiation to assess treatment outcomes. The primary endpoints were vestibular symptoms, evaluated by the number of vertiginous attacks during the past week, the Vertigo Severity Score (VSS), and Dizziness Handicap Inventory (DHI) scores. The secondary endpoints were anxiety and depressive symptoms, evaluated using Beck Anxiety Inventory (BAI) and Beck Depression Inventory (BDI) scores. Efficacy of LcS over placebo was not obvious at 2 month follow-up. At 4 month follow-up, while both LcS and placebo groups of VM patients displayed alleviated symptoms, the extents of the improvements were significantly better in LcS group than those of placebo group, with regard to vestibular symptoms using DHI and VSS, as well as anxiety and depressive symptoms using BAI and BDI. Although placebo effect cannot be ignored in intervention for VM patients, the probiotic LcS still exhibits considerable efficacy against VM symptoms over a 4 month study period, supporting further clinical study of a larger and more diverse cohort.
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Affiliation(s)
- X Qi
- Department of No.4 neurology, Cangzhou Central Hospital, Xinhua Road, Cangzhou 061000, Hebei, China
| | - G Fan
- Department of No.4 neurology, Cangzhou Central Hospital, Xinhua Road, Cangzhou 061000, Hebei, China
| | - H Jia
- Department of No.4 neurology, Cangzhou Central Hospital, Xinhua Road, Cangzhou 061000, Hebei, China
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Fan G, Safaei R, Kwon O, Schuster V, Légaré K, Lassonde P, Ehteshami A, Arias L, Laramée A, Beaudoin-Bertrand J, Limpert J, Tao Z, Spanner M, Schmidt BE, Ibrahim H, Baltuška A, Légaré F. High energy redshifted and enhanced spectral broadening by molecular alignment. Opt Lett 2020; 45:3013-3016. [PMID: 32479446 DOI: 10.1364/ol.387037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/20/2020] [Indexed: 06/11/2023]
Abstract
We demonstrate an efficient approach for enhancing the spectral broadening of long laser pulses and for efficient frequency redshifting by exploiting the intrinsic temporal properties of molecular alignment inside a gas-filled hollow-core fiber (HCF). We find that laser-induced alignment with durations comparable to the characteristic rotational time scale TRotAlign enhances the efficiency of redshifted spectral broadening compared to noble gases. The applicability of this approach to Yb lasers with (few hundred femtoseconds) long pulse duration is illustrated, for which efficient broadening based on conventional Kerr nonlinearity is challenging to achieve. Furthermore, this approach proposes a practical solution for high energy broadband long-wavelength light sources, and it is attractive for many strong field applications.
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36
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Shi D, Jin D, Cai W, Zhu Q, Dou X, Fan G, Shen J, Xu L. Serial low-dose quantitative CT perfusion for the evaluation of delayed cerebral ischaemia following aneurysmal subarachnoid haemorrhage. Clin Radiol 2020; 75:131-139. [DOI: 10.1016/j.crad.2019.10.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 10/03/2019] [Indexed: 10/25/2022]
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37
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Tan Y, Wang F, Fan G, Zheng Y, Li B, Li N, Liu Y, Wang X, Liu W, Krutmann J, Zou Y, Wang S. Identification of factors associated with minimal erythema dose variations in a large-scale population study of 22 146 subjects. J Eur Acad Dermatol Venereol 2020; 34:1595-1600. [PMID: 31955464 PMCID: PMC7496195 DOI: 10.1111/jdv.16206] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 12/31/2019] [Indexed: 12/01/2022]
Abstract
Background Minimal erythema dose (MED) has substantial inter‐ and intraindividual variations, reflecting the influence of very diverse factors. However, related studies showed little consistency probably because of their limited sample size. Objective To identify the factors associated with MED variations in a large‐scale population study. Methods The MED test was performed by following the international standard procedure on 22 146 subjects. The results were analysed in adjusted multivariable linear and logistic regression models. Results This large‐scale study revealed that lower MED was consistently associated with lighter skin [β‐coefficient = −0.33, 95% confidence interval (CI) −0.36 to 0.30, P = 6.41 × 10−84]. Females had significantly higher MED than male (β = 0.91, 0.32–1.50, P = 2.93 × 10−3). Stratified analyses showed that MED was not associated with age [female: odds ratio (OR) = 0.99, 0.98–1.01; male: OR = 0.99, 0.97–1.00]. MED was lower in summer than in other seasons (spring: OR = 1.08, 1.06–1.11; autumn: OR = 1.11, 1.08–1.13; winter: OR = 1.20, 1.18–1.22). Furthermore, MED was associated with air temperature (β = −0.36, −0.49 to 0.23, P = 4.81 × 10−8) and air pressure (β = −0.64, −0.82 to 0.46, P = 8.01 × 10−12) in summer only while not in other seasons. Conclusions This study provides unprecedented evidence that MED is associated with skin colour, sex, season and meteorological factors, but not with age.
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Affiliation(s)
- Y Tan
- Department of Skin & Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, China.,Human Phenome Institute, Fudan University, Shanghai, China.,NMPA Key Laboratory for Monitoring and Evaluation of Cosmetics, Shanghai, China
| | - F Wang
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - G Fan
- Department of Skin & Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, China.,NMPA Key Laboratory for Monitoring and Evaluation of Cosmetics, Shanghai, China
| | - Y Zheng
- Human Phenome Institute, Fudan University, Shanghai, China
| | - B Li
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - N Li
- Department of Skin & Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, China
| | - Y Liu
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - X Wang
- Department of Skin & Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, China
| | - W Liu
- Department of Dermatology, Air Force General Hospital, Beijing, China
| | - J Krutmann
- Human Phenome Institute, Fudan University, Shanghai, China.,IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany.,Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Y Zou
- Department of Skin & Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, China.,NMPA Key Laboratory for Monitoring and Evaluation of Cosmetics, Shanghai, China
| | - S Wang
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Shanghai, China
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Zhen H, Fan G, Xiaojun Z, Jia M, Haibo Y, Yarong Y, Yuandong L, Gao J. Anthracycline Chemotherapy in Treatuing Advanced Breast Cancer and its effect on Estradiol and Tumor Size. Indian J Pharm Sci 2020. [DOI: 10.36468/pharmaceutical-sciences.spl.23] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Cheng Q, Xu C, Huang W, Ma C, Fan G, Yan J, Jian Z, Zhang Y, Song G. Preparing high purity white carbon black from rice husk. Food Sci Nutr 2020; 8:575-583. [PMID: 31993181 PMCID: PMC6977519 DOI: 10.1002/fsn3.1345] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/12/2019] [Accepted: 11/12/2019] [Indexed: 11/24/2022] Open
Abstract
In this paper, rice husk (RH) was used as raw material to prepare white carbon black, and the key technological parameters of preparing white carbon black from RH were studied through single-factor test, orthogonal experiment, and response surface analysis. Meanwhile, the characteristic of white carbon black was also analyzed. Through orthogonal experiment analysis, it was confirmed that the order of factors affecting the purity of white carbon black was calcination temperature > alkali treatment time > final pH > surfactant. Based on the response surface optimization analysis, the optimum parameters for preparation of white carbon black were as follows: calcination temperature 610°C, alkali treatment time of 2.3 hr, final pH of 10, CTMAB was used as the surfactant. Under this condition, the purity of silica prepared could be reached to 99.39%, and the particle size was uniform, spherical, and well dispersed, which satisfied the requirements of GB/T 34698-2017 standard.
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Affiliation(s)
- Qunpeng Cheng
- School of Chemical and Environmental EngineeringWuhan Polytechnic UniversityWuhanHubeiChina
| | - Chenxi Xu
- School of Chemical and Environmental EngineeringWuhan Polytechnic UniversityWuhanHubeiChina
| | - Wenwen Huang
- School of Chemical and Environmental EngineeringWuhan Polytechnic UniversityWuhanHubeiChina
| | - Chao Ma
- School of Chemical and Environmental EngineeringWuhan Polytechnic UniversityWuhanHubeiChina
| | - Guozhi Fan
- School of Chemical and Environmental EngineeringWuhan Polytechnic UniversityWuhanHubeiChina
| | - Juntao Yan
- School of Chemical and Environmental EngineeringWuhan Polytechnic UniversityWuhanHubeiChina
| | - Zhang Jian
- School of Chemical and Environmental EngineeringWuhan Polytechnic UniversityWuhanHubeiChina
| | - Yong Zhang
- School of Chemical and Environmental EngineeringWuhan Polytechnic UniversityWuhanHubeiChina
| | - Guangsen Song
- School of Chemical and Environmental EngineeringWuhan Polytechnic UniversityWuhanHubeiChina
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40
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Li X, Li X, Li J, Jiao X, Jia X, Zhang X, Fan G, Yang J, Guo J. The accuracy of bone mineral density measurement using dual-energy spectral CT and quantitative CT: a comparative phantom study. Clin Radiol 2019; 75:320.e9-320.e15. [PMID: 31882174 DOI: 10.1016/j.crad.2019.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 11/13/2019] [Indexed: 12/14/2022]
Abstract
AIM To compare bone mineral density (BMD) measurement accuracy by dual-energy spectral computed tomography (CT) and quantitative CT (QCT) using an anthropomorphic European spine phantom (ESP). MATERIALS AND METHODS An ESP containing three hydroxyapatite inserts with densities of 50, 100, and 200 mg/cm3 was scanned 10 times each using spectral CT and QCT protocols. Their BMD values were measured using hydroxyapatite-based spectral CT material decomposition images and QCT images and compared with the true values in ESP. RESULTS Both protocols had good repeatability in BMD measurement with low coefficient-of-variance (spectral CT: <2.31%; QCT: <1.17%). There were biases in BMD measurement for the 50, 100, and 200 mg/cm3 hydroxyapatite insert with relative errors of 2.34% (48.83±1.13 mg/cm3), 2% (98±1.25 mg/cm3) and 5.96% (188.09±2.11 mg/cm3), in spectral CT, and 11% (55.5±0.65 mg/cm3), 9.85% (109.85±0.42 mg/cm3) and 4.04% (208.07±0.54 mg/cm3) in QCT, respectively. CONCLUSION BMD can be accurately measured using either QCT or spectral CT, and spectral CT has smaller bias than QCT.
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Affiliation(s)
- X Li
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - X Li
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - J Li
- GE Healthcare, Computed Tomography Research Center, Beijing, 100176, PR China
| | - X Jiao
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - X Jia
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - X Zhang
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - G Fan
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - J Yang
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China.
| | - J Guo
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China.
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41
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Zhang H, Zhang H, Xiong B, Fan G, Cao Z. Immunogenicity of recombinant outer membrane porin protein and protective efficacy against lethal challenge with
Bordetella bronchiseptica
in rabbits. J Appl Microbiol 2019; 127:1646-1655. [DOI: 10.1111/jam.14451] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/27/2019] [Accepted: 09/06/2019] [Indexed: 01/21/2023]
Affiliation(s)
- H. Zhang
- State Key Laboratory of Animal Genetic Engineering Vaccine YEBIO Bioengineering Co., Ltd. of Qingdao Qingdao China
| | - H. Zhang
- State Key Laboratory of Animal Genetic Engineering Vaccine YEBIO Bioengineering Co., Ltd. of Qingdao Qingdao China
| | - B. Xiong
- State Key Laboratory of Animal Genetic Engineering Vaccine YEBIO Bioengineering Co., Ltd. of Qingdao Qingdao China
| | - G. Fan
- State Key Laboratory of Animal Genetic Engineering Vaccine YEBIO Bioengineering Co., Ltd. of Qingdao Qingdao China
| | - Z. Cao
- State Key Laboratory of Animal Genetic Engineering Vaccine YEBIO Bioengineering Co., Ltd. of Qingdao Qingdao China
- Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Qingdao China
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Shengchen D, Gu X, Fan G, Sun R, Wang Y, Yu D, Li H, Zhou F, Xiong Z, Lu B, Zhu G, Cao B. Evaluation of a molecular point-of-care testing for viral and atypical pathogens on intravenous antibiotic duration in hospitalized adults with lower respiratory tract infection: a randomized clinical trial. Clin Microbiol Infect 2019; 25:1415-1421. [PMID: 31229593 PMCID: PMC7173318 DOI: 10.1016/j.cmi.2019.06.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/06/2019] [Accepted: 06/13/2019] [Indexed: 01/03/2023]
Abstract
Objectives The primary objective was to evaluate whether a molecular point-of-care test (POCT) for viral and atypical pathogens added to routine real-time PCR could reduce duration of intravenous antibiotics in hospitalized patients with lower respiratory tract infection (LRTI) compared with routine real-time PCR. Methods In this single-centre, open-label, randomized controlled study, we enrolled hospitalized adults diagnosed with LRTI. Patients were randomized to an intervention group (POCT FilmArray Panel for 20 viruses, atypical pathogens and bacteria plus routine real-time PCR) or a control group (routine real-time PCR for ten pathogens). The primary outcome was duration of intravenous antibiotics during hospitalization. The secondary outcomes included length of stay, cost of hospitalization and de-escalation within 72 hours and between 72 hours and 7 days. Intention-to-treat analysis was used. Results Between October 2017 and July 2018, we enrolled 800 eligible patients (398 in the intervention group and 402 in the control group). Duration of intravenous antibiotics in the intervention group was shorter than in the control (7.0 days (interquartile range (IQR) 5.0–9.0) versus 8.0 days (IQR 6.0–11.0); p <0.001). Length of hospital stay in the intervention group was significantly shorter (8.0 days (IQR 7.0–11.0) versus 9.0 days (IQR 7.0–12.0; p <0.001) and the cost of hospitalization in the intervention group was significantly lower ($1804.7 (IQR 1298.4–2633.8) versus $2042.5 (IQR 1427.4–2926.2); p 0.002) than control group. More patients in the intervention group achieved de-escalation within 72 hours (7.9%, 29/367 versus 3.2%, 12/377; p 0.005) and between 72 hours and 7 days (29.7%, 109/367 versus 22.0%, 83/377; p 0.024). Conclusions Use of molecular POCT testing for respiratory viruses and atypical pathogens might help to reduce intravenous antibiotic use in hospitalized LRTI patients. Clinical Trial Registration clinicaltrials.gov Identifier: NCT03391076.
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Affiliation(s)
- D Shengchen
- Xuanwu Hospital of Capital Medical University, Beijing, China; Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China; Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - X Gu
- Department of Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China; Institute of Respiratory Medicine, Chinese Academy of Medical Science, Beijing, China; National Clinical Research Centre of Respiratory Diseases, Beijing, China
| | - G Fan
- Department of Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China; Institute of Respiratory Medicine, Chinese Academy of Medical Science, Beijing, China; National Clinical Research Centre of Respiratory Diseases, Beijing, China
| | - R Sun
- Department of Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China; Institute of Respiratory Medicine, Chinese Academy of Medical Science, Beijing, China; National Clinical Research Centre of Respiratory Diseases, Beijing, China
| | - Y Wang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China
| | - D Yu
- Department of Pulmonary and Critical Care Medicine, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - H Li
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China
| | - F Zhou
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Z Xiong
- Laboratory of Clinical Microbiology and Infectious Diseases, China-Japan Friendship Hospital, Beijing, China
| | - B Lu
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China; Laboratory of Clinical Microbiology and Infectious Diseases, China-Japan Friendship Hospital, Beijing, China
| | - G Zhu
- Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - B Cao
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China; Institute of Respiratory Medicine, Chinese Academy of Medical Science, Beijing, China; National Clinical Research Centre of Respiratory Diseases, Beijing, China; Laboratory of Clinical Microbiology and Infectious Diseases, China-Japan Friendship Hospital, Beijing, China; Clinical Centre for Pulmonary Infections, Capital Medical University, Beijing, China; Tsinghua University-Peking University Joint Centre for Life Sciences, Beijing, China.
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Fan G, Liu H, Wu Z, Li Y, Feng C, Wang D, Luo J, Wells WM, He S. Deep Learning-Based Automatic Segmentation of Lumbosacral Nerves on CT for Spinal Intervention: A Translational Study. AJNR Am J Neuroradiol 2019; 40:1074-1081. [PMID: 31147353 DOI: 10.3174/ajnr.a6070] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/16/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND PURPOSE 3D reconstruction of a targeted area ("safe" triangle and Kambin triangle) may benefit the viability assessment of transforaminal epidural steroid injection, especially at the L5/S1 level. However, manual segmentation of lumbosacral nerves for 3D reconstruction is time-consuming. The aim of this study was to investigate the feasibility of deep learning-based segmentation of lumbosacral nerves on CT and the reconstruction of the safe triangle and Kambin triangle. MATERIALS AND METHODS A total of 50 cases of spinal CT were manually labeled for lumbosacral nerves and bones using Slicer 4.8. The ratio of training/validation/testing was 32:8:10. A 3D U-Net was adopted to build the model SPINECT for automatic segmentations of lumbosacral structures. The Dice score, pixel accuracy, and Intersection over Union were computed to assess the segmentation performance of SPINECT. The areas of Kambin and safe triangles were measured to validate the 3D reconstruction. RESULTS The results revealed successful segmentation of lumbosacral bone and nerve on CT. The average pixel accuracy for bone was 0.940, and for nerve, 0.918. The average Intersection over Union for bone was 0.897 and for nerve, 0.827. The Dice score for bone was 0.945, and for nerve, it was 0.905. There were no significant differences in the quantified Kambin triangle or safe triangle between manually segmented images and automatically segmented images (P > .05). CONCLUSIONS Deep learning-based automatic segmentation of lumbosacral structures (nerves and bone) on routine CT is feasible, and SPINECT-based 3D reconstruction of safe and Kambin triangles is also validated.
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Affiliation(s)
- G Fan
- From the Orthopedic Department, Shanghai Tenth People's Hospital (G.F., C.F., D.W., S.H.), Tongji University School of Medicine, Shanghai, China .,Department of Spine Surgery (G.F.), Third Affiliated Hospital of Sun Yatsen University, Guangzhou, China.,Surgical Planning Lab (G.F., J.L., W.M.W.), Radiology Department, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - H Liu
- Spinal Pain Research Institute of Tongji University (H.L., C.F., D.W., S.H.), Shanghai, China
| | - Z Wu
- School of Data and Computer Science (Z.W.), Sun Yat-sen University, Guangzhou, China
| | - Y Li
- Shanghai Jiao Tong University School of Medicine (Y.L.), Shanghai, China
| | - C Feng
- From the Orthopedic Department, Shanghai Tenth People's Hospital (G.F., C.F., D.W., S.H.), Tongji University School of Medicine, Shanghai, China.,Spinal Pain Research Institute of Tongji University (H.L., C.F., D.W., S.H.), Shanghai, China
| | - D Wang
- From the Orthopedic Department, Shanghai Tenth People's Hospital (G.F., C.F., D.W., S.H.), Tongji University School of Medicine, Shanghai, China.,Spinal Pain Research Institute of Tongji University (H.L., C.F., D.W., S.H.), Shanghai, China
| | - J Luo
- Surgical Planning Lab (G.F., J.L., W.M.W.), Radiology Department, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Graduate School of Frontier Sciences (J.L.), University of Tokyo, Tokyo, Japan
| | - W M Wells
- Surgical Planning Lab (G.F., J.L., W.M.W.), Radiology Department, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - S He
- From the Orthopedic Department, Shanghai Tenth People's Hospital (G.F., C.F., D.W., S.H.), Tongji University School of Medicine, Shanghai, China .,Spinal Pain Research Institute of Tongji University (H.L., C.F., D.W., S.H.), Shanghai, China
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Zhang R, Jia M, Li P, Han J, Huang K, Li Q, Qiao Y, Xu T, Ruan P, Hu Q, Fan G, Song Q, Fu Z. Radiotherapy improves the survival of patients with metastatic esophageal squamous cell carcinoma: a propensity score matched analysis of Surveillance, Epidemiology, and End Results database. Dis Esophagus 2019; 32:5114250. [PMID: 30277502 DOI: 10.1093/dote/doy074] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 07/19/2018] [Indexed: 12/11/2022]
Abstract
The survival advantage of radiotherapy (RT) for patients with metastatic esophagus cancer has not been adequately evaluated. This study aims to find out the role of RT for metastatic esophagus cancer and to find the different effect for RT to esophageal adenocarcinoma (EAC) and esophageal squamous cell carcinoma (ESCC). This study included 5,970 metastatic esophagus cancer patients from the Surveillance, Epidemiology, and End Results (SEER) database, registered from January 2004 to December 2013. Propensity score (PS) analysis with 1:1 nearest neighbor matching method was used to ensure well-balanced characteristics of all comparison groups by histological types. The Kaplan-Meier and Cox proportional hazardous models were used to evaluate the overall survival (OS), cancer-specific survival (CSS), and corresponding 95% confidence interval (CI). Generally speaking, EAC did not get survival benefit from RT (median OS for RT group vs. no-RT group-8.0, 7.6-8.4 vs. 9.0, 8.5-9.5, P = 0.073), whereas RT for metastatic ESCC did significantly improve OS (median OS for RT group vs. no-RT group-8.0, 7.4-8.6 vs. 7.0, 6.4-7.6, P = 0.044). Therefore, compared with adenocarcinoma, ESCC could get more survival benefit from RT.
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Affiliation(s)
| | - M Jia
- Department of Health Management
| | | | | | | | | | | | | | | | | | - G Fan
- Department of Thoracic Surgery Renmin Hospital of Wuhan University, Wuhan, China
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Liu C, Xiong M, Chai B, Yan J, Fan G, Song G. Construction of 2D/2D Ni2P/CdS heterojunctions with significantly enhanced photocatalytic H2 evolution performance. Catal Sci Technol 2019. [DOI: 10.1039/c9cy02045d] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2D/2D Ni2P/CdS heterojunctions are prepared by combining liquid exfoliation of CdS with a post-annealing procedure and employed as highly efficient photocatalysts for H2 evolution.
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Affiliation(s)
- Chun Liu
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
| | - Minghui Xiong
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
| | - Bo Chai
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
| | - Juntao Yan
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
| | - Guozhi Fan
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
| | - Guangsen Song
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
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Chai B, Yan J, Fan G, Song G, Wang C. Amorphous MoS2 decorated on uniform Cd0.8Zn0.2S microspheres with dramatically improved photocatalytic hydrogen evolution performance. NEW J CHEM 2019. [DOI: 10.1039/c9nj01196j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of Cd1−xZnxS solid solutions and samples of amorphous MoS2 decorated on Cd1−xZnxS microspheres were successfully prepared.
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Affiliation(s)
- Bo Chai
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University
- Wuhan 430023
- P. R. China
| | - Juntao Yan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University
- Wuhan 430023
- P. R. China
| | - Guozhi Fan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University
- Wuhan 430023
- P. R. China
| | - Guangsen Song
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University
- Wuhan 430023
- P. R. China
| | - Chunlei Wang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University
- Wuhan 430023
- P. R. China
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Zhang D, Lin G, Yi L, Hao M, Fan G, Yang X, Peng R, Ding J, Zhang K, Zhang R, Li J. External Quality Assessment for Rubella Virus RNA Detection Using Armored RNA in China. Clin Lab 2017; 63:399-405. [PMID: 28182341 DOI: 10.7754/clin.lab.2016.160635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Although tremendous efforts have been made to reduce rubella incidence, there are still 300 new cases of congenital rubella syndrome daily; thus, rubella infections remain one of the leading causes of preventable congenital birth defects. An effective surveillance system, which could be achieved and maintained by using an external quality assessment program, is critical for prevention and control of this disease. METHODS Armored RNAs, which are noninfectious and RNase-resistant, were used for encapsulation of the E1 gene of rubella virus and for preparation of a 10-specimen panel for external quality assessment. Thirty-two laboratories across mainland China that used nucleic acid tests for rubella virus RNA detection were included in the external quality assessment program organized by the National Center for Clinical Laboratories of China. RESULTS Different kinds of commercial kits were used by the laboratories for nucleic acid extraction and TaqMan real-time reverse-transcription PCR for rubella virus RNA detection; 99.2% sensitivity and 100% specificity were achieved in this external quality assessment program. CONCLUSIONS Most of the participating laboratories obtained accurate results for rubella nucleic acid tests, thereby achieving the quality required for regional rubella and congenital rubella syndrome elimination.
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Fan G, Fu Q, Zhang J, Zhang H, Gu X, Wang C, Gu G, Guan X, Fan Y, He S. Radiation reduction of minimally invasive transforaminal lumbar interbody fusion with localisation system in overweight patients: practical technique. Bone Joint J 2017; 99-B:944-950. [PMID: 28663402 DOI: 10.1302/0301-620x.99b7.bjj-2016-0853.r1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 02/10/2017] [Indexed: 11/05/2022]
Abstract
AIMS Minimally invasive transforaminal lumbar interbody fusion (MITLIF) has been well validated in overweight and obese patients who are consequently subject to a higher radiation exposure. This prospective multicentre study aimed to investigate the efficacy of a novel lumbar localisation system for MITLIF in overweight patients. PATIENTS AND METHODS The initial study group consisted of 175 patients. After excluding 49 patients for various reasons, 126 patients were divided into two groups. Those in Group A were treated using the localisation system while those in Group B were treated by conventional means. The primary outcomes were the effective radiation dosage to the surgeon and the exposure time. RESULTS There were 62 patients in Group A and 64 in Group B. The mean effective dosage was 0.0217 mSv (standard deviation (sd) 0.0079) in Group A and 0.0383 mSv (sd 0.0104) in Group B (p < 0.001). The mean fluoroscopy exposure time was 26.42 seconds (sd 5.91) in Group A and 40.67 seconds (sd 8.18) in Group B (p < 0.001). The operating time was 175.56 minutes (sd 32.23) and 206.08 minutes (sd 30.15) (p < 0.001), respectively. The mean pre-operative localisation time was 4.73 minutes (sd 0.84) in Group A and 7.03 minutes (sd 1.51) in Group B (p < 0.001). The mean screw placement time was 47.37 minutes (sd 10.43) in Group A and 67.86 minutes (sd 14.15) in Group B (p < 0.001). The pedicle screw violation rate was 0.35% (one out of 283) in Group A and 2.79% (eight out of 287) in Group B (p = 0.020). CONCLUSION The study shows that the localisation system can effectively reduce radiation exposure, exposure time, operating time, pre-operative localisation time, and screw placement time in overweight patients undergoing MITLIF. Cite this article: Bone Joint J 2017;99-B:944-50.
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Affiliation(s)
- G Fan
- Tongji University School of Medicine, 301 Yanchang Road, Shanghai 200072, China
| | - Q Fu
- Ningbo No.2 Hospital, 41 Northwestern Road, Ningbo, Zhejiang 315099, China
| | - J Zhang
- Southeast Hospital affiliated to Xiamen University, 269 Zhanghua Road, Zhangzhou, Fujian 363020, China
| | - H Zhang
- Tongji University School of Medicine, 301 Yanchang Road, Shanghai 200072, China
| | - X Gu
- Tongji University School of Medicine, 301 Yanchang Road, Shanghai 200072, China
| | - C Wang
- Tongji University School of Medicine, 301 Yanchang Road, Shanghai 200072, China
| | - G Gu
- Tongji University School of Medicine, 301 Yanchang Road, Shanghai 200072, China
| | - X Guan
- Tongji University School of Medicine, 301 Yanchang Road, Shanghai 200072, China
| | - Y Fan
- Tongji University School of Medicine, 301 Yanchang Road, Shanghai 200072, China
| | - S He
- Tongji University School of Medicine, 301 Yanchang Road, Shanghai 200072, China
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Chen B, Fan G, Sun W, Shang X, Shi S, Wang S, Lv G, Wu C. Usefulness of diffusion-tensor MRI in the diagnosis of Parkinson variant of multiple system atrophy and Parkinson's disease: a valuable tool to differentiate between them? Clin Radiol 2017; 72:610.e9-610.e15. [DOI: 10.1016/j.crad.2017.02.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/21/2016] [Accepted: 02/03/2017] [Indexed: 11/26/2022]
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Wang P, Xu X, Liao S, Song J, Fan G, Chen S, Wang Z. Quantitative structure-activity relationship study of amide mosquito repellents. SAR QSAR Environ Res 2017; 28:341-353. [PMID: 28521600 DOI: 10.1080/1062936x.2017.1320585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 04/14/2017] [Indexed: 06/07/2023]
Abstract
A quantitative structure-activity relationship (QSAR) study on 43 amide repellents was carried out by the heuristic method in order to reveal the correlations between molecular parameters of these amides and their repellency against Aedes aegypti. Sketches and optimizations of molecular structures were achieved by the Gaussian software package. Generation and screening of molecular parameters were accomplished using CODESSA 2.7.10 software. The leave-one-out method was applied for the model validation. The results showed that a four-descriptor QSAR model with r2 of 0.897 was obtained. The average r2 values of the training set and test set of the QSAR model were 0.901 and 0.863, respectively, which suggested that the stability and predictability of the model were confirmed. Analysis of the implications of the descriptors that constitute the QSAR model indicated that all the descriptors were related to the charge distribution over the molecule and affect the dipole moment of the repellents.
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Affiliation(s)
- P Wang
- a College of Forestry, Jiangxi Agricultural University, Camphor Tree Engineering and Technology Research Center of State Forestry Administration and Jiangxi Province , Nanchang , China
| | - X Xu
- a College of Forestry, Jiangxi Agricultural University, Camphor Tree Engineering and Technology Research Center of State Forestry Administration and Jiangxi Province , Nanchang , China
| | - S Liao
- a College of Forestry, Jiangxi Agricultural University, Camphor Tree Engineering and Technology Research Center of State Forestry Administration and Jiangxi Province , Nanchang , China
| | - J Song
- b Department of Chemistry and Biochemistry , University of Michigan-Flint , Flint , MI , USA
| | - G Fan
- a College of Forestry, Jiangxi Agricultural University, Camphor Tree Engineering and Technology Research Center of State Forestry Administration and Jiangxi Province , Nanchang , China
| | - S Chen
- a College of Forestry, Jiangxi Agricultural University, Camphor Tree Engineering and Technology Research Center of State Forestry Administration and Jiangxi Province , Nanchang , China
| | - Z Wang
- a College of Forestry, Jiangxi Agricultural University, Camphor Tree Engineering and Technology Research Center of State Forestry Administration and Jiangxi Province , Nanchang , China
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