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Wan F, Liu R, Xia Y, Hu K, Lei Y, Wang C, Zhang S, Li S, Yang D, Zheng Y, Chen W. Phase-Modified Strongly Coupled δ/ε-MnO 2 Homojunction Cathode for Kinetics-Enhanced Zinc-Ion Batteries. Inorg Chem 2024; 63:6988-6997. [PMID: 38569109 DOI: 10.1021/acs.inorgchem.4c00556] [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] [Indexed: 04/05/2024]
Abstract
Rechargeable Zn-MnO2 batteries using mild water electrolytes have garnered significant interest owing to their impressive theoretical energy density and eco-friendly characteristics. However, MnO2 suffers from huge structural changes during the cycles, resulting in very poor stability at high charge-discharge depths. Briefly, the above problems are caused by slow kinetic processes and the dissolution of Mn atoms in the cycles. In this paper, a 2D homojunction electrode material (δ/ε-MnO2) based on δ-MnO2 and ε-MnO2 has been prepared by a two-step electrochemical deposition method. According to the DFT calculations, the charge transfer and bonding between interfaces result in the generation of electronic states near the Fermi surface, giving δ/ε-MnO2 a more continuous distribution of electron states and better conductivity, which is conducive to the rapid insertion/extraction of Zn2+ and H+. Moreover, the strongly coupled Mn-O-Mn interfacial bond can effectively impede dissolution of Mn atoms and thus maintain the structural integrity of δ/ε-MnO2 during the cycles. Accordingly, the δ/ε-MnO2 cathode exhibits high capacity (383 mAh g-1 at 0.1 A g-1), superior rate performance (150 mAh g-1 at 5 A g-1), and excellent cycling stability over 2000 cycles (91.3% at 3 A g-1). Profoundly, this unique homojunction provides a novel paradigm for reasonable selection of different components.
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Affiliation(s)
- Fu Wan
- State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
- National Innovation Center for Industry-Education Integration of Energy Storage Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Ruiqi Liu
- State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
- National Innovation Center for Industry-Education Integration of Energy Storage Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Yaoyang Xia
- State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Kaida Hu
- State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Yu Lei
- State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Changding Wang
- State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Sida Zhang
- State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Shufan Li
- State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Da Yang
- State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Yujie Zheng
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Weigen Chen
- State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
- National Innovation Center for Industry-Education Integration of Energy Storage Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
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Li H, Ying L, Wan F, Shiqiao K, Yijie F, Chuli X, Xudong Y, Xinhong Y, Zhiyong X. Esketamine enhances memory reconsolidation in the novel object recognition task. Physiol Behav 2024; 277:114461. [PMID: 38215863 DOI: 10.1016/j.physbeh.2024.114461] [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: 07/14/2023] [Revised: 12/28/2023] [Accepted: 01/09/2024] [Indexed: 01/14/2024]
Abstract
Esketamine, the right-handed optical isomer of racemic ketamine, is a rapidly acting antidepressant approved by the FDA for treatment-resistant depression in 2019. However, few studies have investigated esketamine's role in learning and memory, particularly in the context of memory reconsolidation. Herein, we evaluated esketamine's role in memory reconsolidation in 7-week-old male Institute of Cancer Research mice subjected to the novel object recognition (NOR) memory task. The NOR reconsolidation procedure comprised three phases: sampling, reactivation, and testing. Esketamine-enhanced NOR memory performance when injected into mice 0 h after reactivation rather than following a 6 h delay. Conversely, administering esketamine 24 h after sampling without reactivation did not enhance NOR memory performance. Notably, esketamine exhibited no discernible effects on nonspecific responses, such as locomotor activity and exploratory behavior. Furthermore, the α-amino-3‑hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-type receptor antagonist NBQX effectively blocked the esketamine-induced enhancement of memory reconsolidation. In conclusion, esketamine treatment markedly improves memory reconsolidation in NOR tasks, and this effect is linked to AMPA receptor activity.
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Affiliation(s)
- Huang Li
- The Brain Cognition and Brain Disease Branch, Pu Ai Medical School, Shaoyang University, 422000, Shaoyang, China
| | - Lu Ying
- The Brain Cognition and Brain Disease Branch, Pu Ai Medical School, Shaoyang University, 422000, Shaoyang, China
| | - Fu Wan
- The First Affiliated Hospital, Department of Neurology, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Kang Shiqiao
- The First Affiliated Hospital, Department of Critical Care Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Fang Yijie
- School of Nursing, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Xiao Chuli
- The Brain Cognition and Brain Disease Branch, Pu Ai Medical School, Shaoyang University, 422000, Shaoyang, China
| | - Yu Xudong
- The Brain Cognition and Brain Disease Branch, Pu Ai Medical School, Shaoyang University, 422000, Shaoyang, China.
| | - Yin Xinhong
- School of Nursing, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China.
| | - Xiao Zhiyong
- The First Affiliated Hospital, Department of Critical Care Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China.
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3
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Wan F, Wang R, Ge H, Kong W, Sun H, Wu H, Zhao G, Ma W, Chen W. Optical feedback frequency locking: impact of directly reflected field and responding strategies. Opt Express 2024; 32:12428-12437. [PMID: 38571065 DOI: 10.1364/oe.520346] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 03/04/2024] [Indexed: 04/05/2024]
Abstract
The challenges presented by the directly reflected field in optical feedback cavity-enhanced spectroscopy systems serve as substantial obstacles, introducing additional complexity to existing systems and compromising their sensitivity, as the underlying mechanisms of its adverse effects remain not fully understood. This study aims to address this issue by introducing a comprehensive analytical model. Additionally, frequency locking can be achieved by decreasing the feedback rate, the laser's linewidth enhancement factor, and the directly reflected field, and by increasing the refractive index of the gain medium, the length of the laser's resonant cavity, the electric field reflectivity of the laser's output facet, and the resonant field. These parameters can affect the feedback coupling rate pre-factor, and for a resonant cavity with a length of 0.394 m, optical feedback can only be established when the feedback coupling rate pre-factor is less than 1.05 × 109. Through experimental validation, we successfully confirm the effectiveness of the proposed solution in eliminating the detrimental effects of the directly reflected field. Importantly, this suppression is achieved without compromising other aspects of the system's performance. The research findings not only offer the potential to optimize various cavity-enhanced spectroscopy systems that rely on optical feedback but also show promising applications in advancing the development of high-purity spectrum diode lasers utilizing optical feedback from an external high-finesse cavity.
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4
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Lei Y, Xia Y, Wang C, Wang M, Liu R, Li S, Zhang S, Sun Q, Chen W, Wan F. 4-ATP-modified CNTs@NiO-Fe 2O 3-Ag SERS filter membrane for rapid in-situ detection of furfural in mineral oil. Talanta 2023; 265:124796. [PMID: 37385187 DOI: 10.1016/j.talanta.2023.124796] [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: 04/23/2023] [Revised: 06/02/2023] [Accepted: 06/07/2023] [Indexed: 07/01/2023]
Abstract
Evaluating the transformer aging state and detecting multi-aging characteristics in transformer oil with high sensitivity and fast speed has become a key challenge. This study introduces a P-N heterojunction (CNTs@NiO-α-Fe2O3) fabricated through electroless nickel plating and a one-step hydrothermal method. Additionally, silver nanoparticles (AgNPs) with adjustable particle sizes are grown on the surface using a chemical reduction method. To obtain high sensitivity and rapid SERS signal, CNTs@NiO-α-Fe2O3-Ag gel is adsorbed on a disposable needle filter (220 nm) surface, and 4-aminothiophene (4-ATP) is grafted onto the surface of SERS substrate. The minimum detection limit was 0.025 mg/L (EF = 5.22 × 104), and the response time of SERS best signal could be shortened to 3 min. Density functional theory (DFT) calculations reveal that by constructing a P-N heterostructure of NiO-Fe2O3 and assessing the adsorption energies of furfural, acetone, and methanol on the surface of the P-N heterojunction. This SERS strategy has a huge application prospect in the aging diagnosis of oil-paper insulation systems in a transformer.
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Affiliation(s)
- Yu Lei
- School of Electrical Engineering, Chongqing University, Chongqing, 400044, PR China; State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, 400044, PR China
| | - Yaoyang Xia
- School of Electrical Engineering, Chongqing University, Chongqing, 400044, PR China
| | - Changding Wang
- School of Electrical Engineering, Chongqing University, Chongqing, 400044, PR China
| | - Mingliang Wang
- School of Electrical Engineering, Chongqing University, Chongqing, 400044, PR China
| | - Ruiqi Liu
- School of Electrical Engineering, Chongqing University, Chongqing, 400044, PR China
| | - Shufan Li
- School of Electrical Engineering, Chongqing University, Chongqing, 400044, PR China
| | - Sida Zhang
- School of Electrical Engineering, Chongqing University, Chongqing, 400044, PR China
| | - Qiuxia Sun
- Shandong Taikai Transformer Co. LTD China
| | - Weigen Chen
- School of Electrical Engineering, Chongqing University, Chongqing, 400044, PR China; State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, 400044, PR China
| | - Fu Wan
- School of Electrical Engineering, Chongqing University, Chongqing, 400044, PR China; State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, 400044, PR China.
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Kwon J, Rochester J, Wan F, Rindfleisch MA, Tomsic MJ, Sumption MD, Collings EW. CRITICAL CURRENT DENSITIES AND N-VALUES OF MGB 2 CONDUCTORS FOR SMES, MRI, AND LOW AC LOSS APPLICATIONS. IEEE Trans Appl Supercond 2023; 33:6200204. [PMID: 37997585 PMCID: PMC10665032 DOI: 10.1109/tasc.2023.3247375] [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] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
Multifilamentary MgB 2 strands (filament numbers 36 to 114) prepared by the in-situ power-in-tube (PIT) route with carbon doping contents of 0, 2, and 3.2% were wound on barrels for transport J c and n -value measurement at 4.2 K in fields of up to 12 T. The strand and gauge lengths were 1 m and 0.5 m. Heat treatments at 675 °C and 650 °C centered around the melting point of Mg (650 °C) and both utilized the liquid-solid reaction. A pair of strands, with and without 2% C doping exhibited the J c (B) crossover effect. Studied were the dependencies of J c on field strength, dopant concentration, and cabling and the dependence of n -value on field strength.
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Affiliation(s)
- J Kwon
- Center for Superconducting and Magnetic Materials, The Ohio State University, Columbus, OH 43210
| | - J Rochester
- Center for Superconducting and Magnetic Materials, The Ohio State University, Columbus, OH 43210
| | - F Wan
- Center for Superconducting and Magnetic Materials, The Ohio State University, Columbus, OH 43210
- Now employed at Fermilab, Batavia, IL 60510
| | | | | | - M D Sumption
- Center for Superconducting and Magnetic Materials, The Ohio State University, Columbus, OH 43210
| | - E W Collings
- Center for Superconducting and Magnetic Materials, The Ohio State University, Columbus, OH 43210
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Wan F, Kong W, Liu Q, Wang P, Wang M, Li Q, Yao X, Chen W. Fluorescence Noise Eliminating Fiber-Enhanced Raman Spectroscopy for Simultaneous and Multiprocess Analysis of Intermediate Compositions for C 2H 2 and H 2 Production. Anal Chem 2023. [PMID: 37227698 DOI: 10.1021/acs.analchem.3c00789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
C2H2 and H2, as important chemical and energy raw materials, can be produced effectively and environmentally friendly by the partial oxidation (POX) of CH4. Simultaneous analysis of intermediate gas compositions in the multiprocess (cracking, recovery, degassing, etc) of POX can regulate product generation and improve production efficiency. To overcome the disadvantage of common gas chromatography, we propose a fluorescence noise eliminating fiber-enhanced Raman spectroscopy (FNEFERS) technique for simultaneous and multiprocess analysis of the POX process, in which the fluorescence noise eliminating (FNE) method can effectively eliminate the horizontal and vertical spatial noise to ensure ppm level limits of detection (LOD). The vibration modes of gas compositions related to each POX process such as cracked gas, synthesis gas, and product acetylene are analyzed. Meanwhile, the composition of three-process intermediate sample gases from Sinopec Chongqing SVW Chemical Co., Ltd is quantitatively and qualitatively analyzed simultaneously, along with the ppm level LODs (H2: 11.2 ppm, C2H2: 3.1 ppm, CO2: 9.4 ppm, C2H4: 4.8 ppm, CH4: 1.5 ppm, CO: 17.9 ppm, allene: 1.5 ppm, methyl acetylene: 2.6 ppm, 1,3-butadiene: 2.8 ppm) with a laser power of 180 mW, exposure time of 30 s, and accuracy of higher than 95.2%. This study fully demonstrates the ability of FNEFERS to replace gas chromatography to achieve simultaneous and multiprocess analysis of intermediate compositions for C2H2 and H2 production and to monitor other chemical and energy production processes.
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Affiliation(s)
- Fu Wan
- School of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, P. R. China
| | - Weiping Kong
- School of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, P. R. China
| | - Qiang Liu
- School of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, P. R. China
| | - Pinyi Wang
- School of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, P. R. China
| | - Mingyong Wang
- Sinopec Chongqing SVW Chemical Co., Ltd, Chongqing 400044, P. R. China
| | - Qiuchi Li
- School of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, P. R. China
| | - Xinrong Yao
- School of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, P. R. China
| | - Weigen Chen
- School of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, P. R. China
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Ge H, Kong W, Wang R, Zhao G, Ma W, Chen W, Wan F. Simple technique of coupling a diode laser into a linear power buildup cavity for Raman gas sensing. Opt Lett 2023; 48:2186-2189. [PMID: 37058673 DOI: 10.1364/ol.486417] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 03/19/2023] [Indexed: 06/19/2023]
Abstract
We report a novel, to the best of our knowledge, and simple technique to lock a 642 nm multi-quantum well diode laser to an external linear power buildup cavity by directly feeding the cavity reflected light back to the diode laser for enhancement of gas Raman signals. The dominance of the resonant light field in the locking process is achieved by reducing the reflectivity of the cavity input mirror and thus making the intensity of the directly reflected light weaker than that of the resonant light. Compared with traditional techniques, stable power buildup in the fundamental transverse mode TEM00 is guaranteed without any additional optical elements or complex optical arrangements. An intracavity exciting light of 160 W is generated with a 40 mW diode laser. Using a backward Raman light collection geometry, detection limits at the ppm level are achieved for ambient gases (N2, O2) with an exposure time of 60 s.
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Bonura E, Mehegan M, Wan F, Hahn LRG, Mokshagundam D, Scheel J, Ybarra A, Gazit A, Miller J, Nath D, Eghtesady P, Canter C. Ventricular Assist Device (VAD) Support Leads to Different Outcomes in Infants with Single Ventricle (SVAD) vs Two Ventricle (2VAD) Anatomy with Severe Heart Failure. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1352] [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: 04/05/2023] Open
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Wan F, Sumption MD, Collings EW. Mechanism of enhanced critical fields and critical current densities of MgB 2 wires with C/Dy 2O 3 co-additions. J Appl Phys 2023; 133:023905. [PMID: 36643867 PMCID: PMC9836725 DOI: 10.1063/5.0130589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
A series of monofilamentary powder-in-tube MgB2 wires were fabricated with 2 mol. % C doping and co-additions of 0-3 wt. % Dy2O3. Irreversibility fields (μ 0 Hirr ), upper critical fields (μ 0 Hc 2), and transport critical currents were measured, and from these quantities, anisotropies ( γ ) and electronic diffusivities ( D π , σ ) were estimated. The addition of 1 wt. % Dy2O3 to already optimally C-doped MgB2 wires produced higher Hc 2//ab , Hc 2//c , and Hirr values at 4.2 K. In addition, the critical current density, Jc , increased with Dy2O3 concentration up to 1 wt. % where non-barrier Jc reached 4.35 × 104 A/cm2 at 4.2 K, 10 T. At higher temperatures, for example, 20 K and 5 T, co-additions of 2 mol. % C and 2 wt. % Dy2O3 improved non-barrier Jc by 40% and 93% compared to 2 and 3 mol. % C doping, respectively. On the other hand, measurements of Tc showed that C/Dy2O3 co-additions increase interband scattering rates at a lower rate than C doping does (assuming C doping levels giving similar levels of low-T μ 0 Hc 2 increase as co-addition). Comparisons to a two-band model for μ 0 Hc 2 in MgB2 allowed us to conclude that the increases in Hc 2//ab , Hc 2//c , and Hirr (as well as concomitant increases in high-field Jc ) with Dy2O3 addition are consistent with increases primarily in intraband scattering. This suggests C/Dy2O3 co-addition to be a more promising candidate for improving non-barrier Jc of MgB2 at temperatures above 20 K.
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Affiliation(s)
- F. Wan
- Author to whom correspondence should be addressed:
| | - M. D. Sumption
- Center for Superconducting and Magnetic Materials, Department of Materials Science and Engineering, The Ohio State University, Columbus, Ohio 43210, USA
| | - E. W. Collings
- Center for Superconducting and Magnetic Materials, Department of Materials Science and Engineering, The Ohio State University, Columbus, Ohio 43210, USA
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Wan F, Kang T, Liu A, Zhou C, Liu S, Xu Y, Si S. Salt induced phase separation extraction of 2,3-Butanediol from aqueous solutions: Recovery and recycling of potassium triphosphate. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.12.028] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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11
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Dong ZC, Wang Y, Yang F, Wan F. A brief introduction to chemical proteomics for target deconvolution. Eur Rev Med Pharmacol Sci 2022; 26:6014-6026. [PMID: 36111901 DOI: 10.26355/eurrev_202209_29616] [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: 06/15/2023]
Abstract
OBJECTIVE Drug-target relationships provide the basis for network-based polypharmacology, and target deconvolution is a key step in phenotypic-screening based drug discovery. Due to the complexity of the mammalian proteomics and the often-limited affinity of the lead compound, it is challenging to identify the drug targets, especially when the goal is to identify all targets. This paper attempts to provide a brief and comprehensive introduction to the various methods in chemical proteomics for target deconvolution by categorizing them into two groups: the biochemical enrichment and the proteomics-screening methods. Moreover, a brief introduction of related Mass Spectrometry techniques is also provided, together with recent progress. MATERIALS AND METHODS The data for this review were queried from Web of Science and PubMed, the keywords used were Drug targets, Target deconvolution, and Chemical Proteomics. A total of over 500 relevant articles, with a time limit from 1953 to 2022, were identified according to search strategy. Duplicate records and review articles were excluded by their titles and abstracts. Finally, we found about 120 articles matching our inclusion criteria, which covered representative research and reviews of various target discovery methods. RESULTS Existing target discovery methods can be grouped into either biochemical enrichment or the proteomics-screening methods, with the recent emergence of a hybrid method combining these two such as lysine reactivity profiling. The advantage of the biochemical enrichment method is the ease of operation and the comprehensive target coverage. However, most biochemical enrichment methods require a high-affinity binding of the drug to the target proteins and cannot differentiate direct/indirect targets. The proteomics-screening methods do not require drug modification but have limited protein coverage, and most of them cannot differentiate direct/indirect targets. CONCLUSIONS Although existing target discovery methods have greatly facilitated pharmacological research, each of these methods has advantages and disadvantages. New strategies/methods are needed to further improve both the coverage of the proteosome and the specificity.
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Affiliation(s)
- Z-C Dong
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China.
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12
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Wan F, Liu S, Wang L, Si S. A novel salting-out extraction system for determination of ethylene glycol and diethylene glycol in liquid samples followed by GC-FID. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107491] [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: 11/26/2022]
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13
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Majoros M, Sumption MD, Parizh M, Wan F, Rindfleisch MA, Doll D, Tomsic M, Collings EW. Magnetic, Mechanical and Thermal Modeling of Superconducting, Whole-body, Actively Shielded, 3 T MRI Magnets Wound Using MgB 2 Strands for Liquid Cryogen Free Operation. IEEE Trans Appl Supercond 2022; 32:4400104. [PMID: 36245846 PMCID: PMC9563318 DOI: 10.1109/tasc.2022.3147137] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
we present magnetic, mechanical and thermal modeling results for a 3 Tesla actively shielded whole body MRI (Magnetic Resonance Imaging) magnet consisting of coils with a square cross section of their windings. The magnet design was a segmented coil type optimized to minimize conductor length while hitting the standard field quality and DSV (Diameter of Spherical Volume) specifications as well as a standard, compact size 3 T system. It had an overall magnet length and conductor length which can lead to conduction cooled designs comparable to NbTi helium bath cooled 3 T MRI magnets. The design had a magnetic field homogeneity better than 10 ppm (part-per-million) within a DSV (Diameter of Spherical Volume) of 48 cm and the total magnet winding length of 1.37 m. A new class of MgB2 strand especially designed for MRI applications was considered as a possible candidate for winding such magnets. This work represents the first magnetic, mechanical and thermal design for a whole-body 3 T MgB2 short (1.37 m length) MRI magnet based on the performance parameters of existing MgB2 wire. 3 Tesla MRI magnet can operate at 20 K at 67 % of its critical current.
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Affiliation(s)
- M Majoros
- Ohio State University, Columbus, OH 43210, USA
| | | | - M Parizh
- General Electric Global Reseach, Niskayuna, NY, USA
| | - F Wan
- FermiLab, Batavia, IL, USA
| | | | - D Doll
- Hyper Tech Research, Inc., Columbus, OH, USA
| | - M Tomsic
- Hyper Tech Research, Inc., Columbus, OH, USA
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14
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Wang P, Chen W, Wang J, Lu Y, Tang Z, Wan F. Dense-pattern multi-pass cavity based on spherical mirrors in a Z-shaped configuration for Raman gas sensing. Opt Lett 2022; 47:2466-2469. [PMID: 35561377 DOI: 10.1364/ol.458602] [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: 03/22/2022] [Accepted: 04/19/2022] [Indexed: 06/15/2023]
Abstract
We report a dense-pattern multi-pass cavity (MPC) based on four spherical mirrors placed in a Z-shaped cavity configuration for improving the Raman signals from gases. The folding structure of the cavity causes dense patterns of spots, and at least 420 beams are reflected in the cavity. Raman spectra of ambient air, methane, and ethylene are recorded to demonstrate the performance of our apparatus. At atmospheric pressure, ppm-level detection limits of the gases are achieved with 10 s of exposure time. The Raman signal intensities of the gases show excellent linearity with the gases' partial pressures, which means that high-accuracy detection is also feasible.
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Wan F, Lei Y, Wang C, Zhang X, He H, Jia L, Wang T, Chen W. Highly sensitive and reproducible CNTs@Ag modified Flower-Like silver nanoparticles for SERS situ detection of transformer Oil-dissolved furfural. Spectrochim Acta A Mol Biomol Spectrosc 2022; 273:121067. [PMID: 35228084 DOI: 10.1016/j.saa.2022.121067] [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: 12/01/2021] [Revised: 02/17/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Accurately evaluating the aging state of oil paper insulation in electrical equipment is a key to ensure the safe operation of the power transformer. For achieving highly sensitive in-situ detection of dissolved furfural in transformer oil with good reproducibility, flower-like silver nanoparticles modified with carbon nanotubes (CNTs@Ag-F-AgNPs) was synthesized by a combination of electroless silver plating and redox method. The large specific surface area and strong adsorption capacity of CNTs@Ag promoted the formation of more "hot spots". CNTs@Ag-F-AgNPs were adsorbed on Si-Au substrate via mercapto groups on the coupling agent 1'4 phenyldimercaptan molecule (BDT). Using rhodamine 6G (R6G) as probe molecule, the enhanced factor reached 6.96 × 109. Then, the substrate was used for in-situ SERS detection of transformer oil-dissolved furfural at different concentrations and the detection limit was 2.25 mg/L at 1703 cm-1 (Stretching vibration of C = O in furfural molecule), fulfilling requirements of furfural content detection after severe aging of transformer (4 mg/L). Besides, the relative standard deviation (RSD) of characteristic peak intensity at ten different positions was only 1.74%. These results exhibite that three-dimensional nanostructure with high sensitivity and good reproducibility exhibited a wide application range for in situ detection of dissolved trace furfural in transformer oil.
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Affiliation(s)
- Fu Wan
- School of Electrical Engineering, Chongqing University, Chongqing 400044, PR China; State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing 400044, PR China.
| | - Yu Lei
- School of Electrical Engineering, Chongqing University, Chongqing 400044, PR China; State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing 400044, PR China.
| | - Changding Wang
- School of Electrical Engineering, Chongqing University, Chongqing 400044, PR China
| | - Xinyuan Zhang
- School of Electrical Engineering, Chongqing University, Chongqing 400044, PR China
| | - Honglin He
- School of Electrical Engineering, Chongqing University, Chongqing 400044, PR China
| | - Lei Jia
- China Southern Power Grid Research Institute Co., LTD, Guangzhou 510663, China; National Engineering Laboratory for UHV Engineering Technology (Kunming, Guangzhou), Guangzhou 510663, China
| | - Tingting Wang
- China Southern Power Grid Research Institute Co., LTD, Guangzhou 510663, China; National Engineering Laboratory for UHV Engineering Technology (Kunming, Guangzhou), Guangzhou 510663, China
| | - Weigen Chen
- School of Electrical Engineering, Chongqing University, Chongqing 400044, PR China; State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing 400044, PR China
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16
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Li Q, Wan F, Zhao M. Distinct soil microbial communities under Ageratina adenophora invasions. Plant Biol (Stuttg) 2022; 24:430-439. [PMID: 35050505 DOI: 10.1111/plb.13387] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 12/19/2021] [Indexed: 06/14/2023]
Abstract
Ageratina adenophora is one of the most hazardous invasive weeds in China. It can form a single species community quickly and cause extensive ecological harm. The belowground microbial community can participate in nutrient transformation in soil and plays an important role in the invasiveness of exotic plant species. We selected sampling sites with different invasion levels of A. adenophora. The soil property and soil biogeochemical activity were measured in both bulk and rhizosphere soil under the aggressive weed A. adenophora and under adjacent native plants. The composition of bacterial communities was investigated using high-throughput 16S rRNA gene sequencing. We found that the rhizosphere habitat selectively accumulated Sphingomonas and Steroidobacter and reduced the abundance of Gaiella and Gp6 regardless of plant host. The presence of A. adenophora caused a switch in microbial composition from Aeromicrobium and Marmoricola to Reyranella and Bradyrhizobium in the bulk soil, and from Gp4, Pirellula, Lysobacter and Aridibacterrae to Reyranella and Streptomyces in the rhizosphere soil. We also revealed specific microbes that closely related with N-cycling processes. In addition, soil pH was the main factor affecting microbial communities in both bulk and rhizosphere soil. Our study confirmed that the rhizosphere environment imposed homogenous microbial communities. The invasion of A. adenophora selected specialized bacterial communities in soils and specific microbes that potentially mediated soil nutrition cycling. Our findings provide ecological explanation to explain how the underground microbes help A. adenophora invasive.
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Affiliation(s)
- Q Li
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan, China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - F Wan
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan, China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - M Zhao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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17
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Wang Z, Song R, Chen W, Wang J, Wang P, Zhang Z, Zhang X, Wan F. Vibrational Spectra and Molecular Vibrational Behaviors of Dibenzyl Disulfide, Dibenzyl Sulphide and Bibenzyl. Int J Mol Sci 2022; 23:ijms23041958. [PMID: 35216075 PMCID: PMC8874789 DOI: 10.3390/ijms23041958] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/02/2022] [Accepted: 02/05/2022] [Indexed: 11/18/2022] Open
Abstract
The vibration spectroscopy (Raman and infrared) of widely concerned molecules in sulfur corrosion phenomenon (Dibenzyl Disulfide, Dibenzyl Sulphide, and Bibenzyl) is detailedly analyzed based on density functional theory and experimental measurement. The dominant conformations of these molecules are determined according to Boltzmann distribution in relative Gibbs free energy. Additionally, noncovalent interaction analysis is conducted to indicate intramolecular interaction. Vibration normal mode is assigned based on potential energy distribution, which comprehensively reveals the molecular vibrational behaviors. Conformations weighted spectra are obtained and compared with experimentally measured spectra. We found that experimental spectra are in good agreement with the theoretical spectra in B3LYP-D3(BJ)/6-311G** level with a frequency correction factor. Furthermore, the divergence among these molecules is discussed. The vibrational behavior of the methylene group in the molecule shows a trend with the presence of the sulfur atom.
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18
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Wang P, Chen W, Wang J, Zhou F, Hu J, Zhang Z, Wan F. Hazardous Gas Detection by Cavity-Enhanced Raman Spectroscopy for Environmental Safety Monitoring. Anal Chem 2021; 93:15474-15481. [PMID: 34775758 DOI: 10.1021/acs.analchem.1c03499] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We demonstrate the practicability of cavity-enhanced Raman spectroscopy (CERS) with a folded multipass cavity as a unique tool for the detection of hazardous gases in the atmosphere. A four-mirror Z-sharped multipass cavity results in a greatly extended laser-gas interaction length to improve the Raman signal intensity of gases. For Raman intensity maximization, the optimal number of intracavity beams of a single reflection cycle is calculated and then the cavity parameters are designed. A total of 360 intracavity beams are realized, which are circulated four times in the cavity based on the polarization. ppb-Level Raman gas sensing at atmospheric pressure for several typical explosive gases and toxic gases in ambient air, including hydrogen (H2), methane (CH4), carbon monoxide (CO), hydrogen sulfide (H2S), and chlorine (Cl2), is achieved at 300 s exposure time. Our CERS apparatus, which can detect multiple gases simultaneously with ultrahigh sensitivity and high selectivity, is powerful for detecting hazardous gases in the atmosphere, and it has excellent potential for environmental safety monitoring.
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Affiliation(s)
- Pinyi Wang
- Chongqing University State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing 400044, China
| | - Weigen Chen
- Chongqing University State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing 400044, China
| | - Jianxin Wang
- Chongqing University State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing 400044, China
| | - Feng Zhou
- Chongqing University State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing 400044, China.,State Grid Jiangsu Electric Power Company Changzhou Power Supply Company, Jiangsu, Nanjing 213000, China
| | - Jin Hu
- Chongqing University State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing 400044, China.,Electric Power Research Institute of Yunnan Power Grid Company Limited, Yunnan, Kunming 650217, China
| | - Zhixian Zhang
- Chongqing University State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing 400044, China
| | - Fu Wan
- Chongqing University State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing 400044, China
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Wang J, Chen W, Wang P, Zhang Z, Wan F, Zhou F, Song R, Wang Y, Gao S. Fiber-enhanced Raman spectroscopy for highly sensitive H 2 and SO 2 sensing with a hollow-core anti-resonant fiber. Opt Express 2021; 29:32296-32311. [PMID: 34615304 DOI: 10.1364/oe.437693] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
An innovative fiber-enhanced Raman gas sensing system with a hollow-core anti-resonant fiber is introduced. Two iris diaphragms are implemented for spatial filtering, and a reflecting mirror is attached to one fiber end that provides a highly improved Raman signal enhancement over 2.9 times than the typical bare fiber system. The analytical performance for multigas compositions is thoroughly demonstrated by recording the Raman spectra of carbon dioxide (CO2), oxygen (O2), nitrogen (N2), hydrogen (H2), and sulfur dioxide (SO2) with limits of detection down to low-ppm levels as well as a long-term instability < 1.05%. The excellent linear relationship between Raman signal intensity (peak height) and gas concentrations indicates a promising potential for accurate quantification.
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20
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Meagher M, Hakimi K, Soliman S, Yuan J, Patil D, Saito K, Javier-Desolges J, Yasuda Y, Wan F, Fujii Y, Master V, Derweesh I. Impact of post-operative proteinuria on development of CKD: Analysis of functional outcomes post nephrectomy. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00999-4] [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: 11/24/2022]
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21
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Wan F, Ge Z. [Textual research on lost ancient Chinese medical books in Bencao Tujing]. Zhonghua Yi Shi Za Zhi 2021; 51:24-27. [PMID: 33794580 DOI: 10.3760/cma.j.cn112155-20201229-00204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Bencao Tujing(, Illustration Classics for Materia Medica) occupies an irreplaceable academic position in the academic history of Chinese Materia Medica. It was written in the early Song Dynasty. The contents of Chinese medical books before Song Dynasty have not been revised by Song Dynasty officials, and the original appearance of earlier documents have been preserved. Domestic and foreign scholars mainly focus on the textual research of Chinese Materia medica patterns, and academic value research. The special research on the Lost ancient Chinese medical books were relatively rare. According to the names of"XX Fang"or"Someone Fang"in Bencao Tujing, about 46 kinds of Lost ancient Chinese medical books have been found. Taking Wei Zhou's Du Xing Fang, Liu Yuxi's Chuan Xin Fang, Tian Bao Dan Fang Tu (Tian Bao Dan Xing Fang) as examples, it is found that Lost ancient Chinese medical books recorded in Bencao Tujing have abundant materials and clear clues, which have further exploration space for the research and collection of Chinese medical books.
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Affiliation(s)
- F Wan
- China Institute for History of Medicine and Medical Literature, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Z Ge
- Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China
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22
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Yang T, Chen W, Zhang Z, Lei J, Wan F, Song R. Multiple reflections enhanced fiber-optic photoacoustic sensor for gas micro-leakage. Opt Express 2021; 29:2142-2152. [PMID: 33726415 DOI: 10.1364/oe.415607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 12/26/2020] [Indexed: 06/12/2023]
Abstract
A multiple reflections-enhanced fiber-optic photoacoustic (PA) gas sensor for gas micro-leakage is introduced. Multiple reflections of the excitation laser occur on the inner surface of a reflective ring to enhance the PA signal. The PA signal is obtained by measuring the deflection of the gold-coated poly (phenylene sulfide) (PPS) diaphragm with a Fabry-Perot interferometer (FPI). The second harmonic wavelength modulation spectrum (2f-WMS) technology can essentially eliminate the fundamental frequency noise generated by the wavelength-independent absorption of the reflective ring. Experimental results show that the PA signal can be effectively enhanced 11.7 times by the multiple reflections optical path compare with the double-pass optical path. The minimum detection limit of the system is achieved to be 23.6 ppb. The designed PA gas sensor is suited for remote detection of gas micro-leakage.
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23
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Wang Y, Xie Y, Dong ZC, Jiang XJ, Gong P, Lu J, Wan F. Levels of sgRNA as a Major Factor Affecting CRISPRi Knockdown Efficiency in K562 Cells. Mol Biol 2021. [DOI: 10.1134/s0026893321010143] [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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24
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Wang Y, Xie Y, Dong ZC, Jiang XJ, Gong P, Lu J, Wan F. [Levels of sgRNA as a Major Factor Affecting CRISPRi Knockdown Efficiency in K562 Cells]. Mol Biol (Mosk) 2021; 55:86-95. [PMID: 33566028 DOI: 10.31857/s0026898421010146] [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: 02/10/2020] [Accepted: 04/27/2020] [Indexed: 11/24/2022]
Abstract
To determine how nuclease deactivated Cas9 (dCas9) or single-guide RNA (sgRNA) expression levels affect the knockdown efficiency of CRISPRi, we created K562 cell clones expressing KRAB-dCas9 protein either with the inducible Tet-on system or with the constitutive SFFV promotor. Single clones were selected by fluorescence-activated cell sorting (FACS) for further study. Six genes with various expression levels were targeted using lentiviral sgRNA from two libraries in four cell clones with various KRAB-dCas9 expression levels. The expression level of dCas9 protein/sgRNA levels and the knockdown efficiency were determined by flow cytometry. The cell clone with the highest KRAB-dCas9 expression level achieved effective CRISPRi knockdown. The data describing this clone were statistically different from that on other clones, indicating the strong KRAB-dCas9 expression might be a prerequisite for CRISPRi. By adopting different multiplicity of infection (MOI) in lentiviral transduction of this clone, we modified the expression level of sgRNA and found that the knockdown efficiency was neither affected by the target gene expression level nor correlated with KRAB-dCas9 levels, which remained relatively constant across all knockdown experiments (coefficient of variation = 2.2%). As an example, the following levels of the knockdowns: 74.72, 72.28 and 39.08% for mmadhc, rpia and znf148 genes, respectively, were achieved. These knockdown efficiencies correlated well with the respective sgRNA expression levels. Linear regression models built using this data indicate that the knockdown efficiency may be significantly affected by the levels of both KRAB-dCas9 and sgRNA. Notably, the sgRNA levels have greater impact, being a major factor affecting CRISPRi efficiency.
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Affiliation(s)
- Y Wang
- College of Life Sciences, Inner Mongolia Agricultural University, Inner Mongolia, 010010 China
| | - Y Xie
- College of Science, Inner Mongolia Agricultural University, Inner Mongolia, 010010 China
| | - Z C Dong
- College of Life Sciences, Inner Mongolia Agricultural University, Inner Mongolia, 010010 China
| | - X J Jiang
- College of Life Sciences, Inner Mongolia Agricultural University, Inner Mongolia, 010010 China
| | - P Gong
- College of Life Sciences, Inner Mongolia Agricultural University, Inner Mongolia, 010010 China
| | - J Lu
- College of Life Sciences, Inner Mongolia Agricultural University, Inner Mongolia, 010010 China
| | - F Wan
- College of Life Sciences, Inner Mongolia Agricultural University, Inner Mongolia, 010010 China
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25
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Dutt R, Meagher M, Patil D, Saito K, Patel D, Ghali F, Keiner C, Miller N, Bradshaw A, Wan F, Yasuda Y, Fujii Y, Master V, Derweesh I. Impact of diabetes mellitus on functional and survival outcomes in renal cell carcinoma: An international multicenter study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32709-9] [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: 10/23/2022] Open
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26
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Wan F, Sumption MD, Rindfleisch MA, Collings EW. The Role of CHPD and AIMI processing on enhancing J C and transverse connectivity of in-situ MgB 2 strand. IOP Conf Ser Mater Sci Eng 2020; 756:012018. [PMID: 34584538 PMCID: PMC8475811 DOI: 10.1088/1757-899x/756/1/012018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Research into in-situ MgB2 strand has been focused on improvements in J C through reduction of porosity. Both of cold-high-pressure-densification (CHPD) and advanced-internal-magnesium-infiltration (AIMI) techniques can effectively remove the voids in in-situ MgB2 strands. This study shows the nature of the reduced porosity for in-situ MgB2 strands lies on increases in transverse grain connectivity as well as longitudinal connectivity. The CHPD method bi-axially applying 1.0 GPa and 1.5 GPa yielded 4.2 K J CM∥s of 9.6 × 104 A/cm2 and 8.5 × 104 A/cm2 at 5 T, respectively, with compared with 6.0 × 104 A/cm2 for typical powder-in-tube (PIT) in-situ strand. Moreover, AIMI-processed monofilamentary MgB2 strand obtained even higher J Cs and transverse grain connectivity than the CHPD strands.
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Affiliation(s)
- F Wan
- Center for Superconductor and Magnetic Materials, Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - M D Sumption
- Center for Superconductor and Magnetic Materials, Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | | | - E W Collings
- Center for Superconductor and Magnetic Materials, Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
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Abstract
We demonstrate the utility of cavity-enhanced Raman spectroscopy (CERS) as a unique multigas analysis tool for power transformer diagnosis. For this purpose, improvements have been added to our recently introduced CERS apparatus. Based on optical feedback frequency-locking, laser radiation is coupled into a high-finesse optical cavity, thus resulting in huge intracavity laser power. With 20 s exposure time, ppm-level gas sensing at 1 bar total pressure is achieved, including carbon dioxide (CO2), carbon monoxide (CO), hydrogen (H2), methane (CH4), ethane (C2H6), ethylene (C2H4), acetylene (C2H2), nitrogen (N2), and oxygen (O2). By using the internal standard gas (sulfur hexafluoride, SF6), the quantification of multigas with high accuracy is also realized, which is confirmed by the measurement of calibration gases. For fault diagnosis, transformer oil is sampled from a 110 kV power transformer in service. Dissolved gases are extracted and analyzed by the CERS apparatus. Then the transformer is diagnosed according to the measurement results. CERS has the ability to analyze multigas with high selectivity, sensitivity, and accuracy, it has great potential in gas sensing fields.
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Affiliation(s)
- Pinyi Wang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, No. 174, Shazheng Street, Chongqing, 400044, China
| | - Weigen Chen
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, No. 174, Shazheng Street, Chongqing, 400044, China
| | - Jianxin Wang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, No. 174, Shazheng Street, Chongqing, 400044, China
| | - Jun Tang
- State Grid Sichuan Electric Power Company, No. 18, Jiaozi North Second Road, Chengdu, 610041, China
| | - Yongli Shi
- China Southern Power Grid Company Limited, No. 137, Guanshan West Road, Guiyang, 550081, China
| | - Fu Wan
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, No. 174, Shazheng Street, Chongqing, 400044, China
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Wei C, Tan X, Liu G, Wan F, Zhao H, Zhang C, You W, Liu X, Zhang X, Jin Q. β-carotene as a dietary factor affecting expression of genes connected with carotenoid, vitamin A and lipid metabolism in the subcutaneous and omental adipose tissue of beef cattle. J Anim Feed Sci 2020. [DOI: 10.22358/jafs/117866/2020] [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] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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29
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Ge Z, Wan F. [Textual research on lost articles in Mei Shi Fang]. Zhonghua Yi Shi Za Zhi 2020; 50:33-38. [PMID: 32564535 DOI: 10.3760/cma.j.issn.0255-7053.2020.01.006] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Mei Shi fang() is a lost medical prescription book. Its title came from the "book of classics and history" , a chapter of Zhenglei Bencao (, Collected Classified Materia Medica). 117 pieces of lost articles were preserved in the book. In addition to Zhenglei Bencao, a total of 50 kinds of medical books explicitly quoted some of the lost articles in Mei Shi Fang. Among them, 38 kinds of medical books did not exceed the scope of the articles of Mei Shi Fang cited in Zhenglei Bencao, 12 kinds of medical books contained the articles of Mei Shi Fang which did not quoted in Zhenglei Bencao. It is speculated that Mei Shi Fang may still exist in the Yangtze River basin from 1552 to 1578. In terms of the existing articles of Mei Shi Fang, it has academic origin with Zhouhou Beiji Fang (, Handbook of Prescriptions for Emergency).
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Affiliation(s)
- Z Ge
- China Institute for History of Medicine and Medical Literature, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - F Wan
- China Institute for History of Medicine and Medical Literature, China Academy of Chinese Medical Sciences, Beijing 100700, China
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30
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Wang P, Chen W, Wan F, Wang J, Hu J. Cavity-enhanced Raman spectroscopy with optical feedback frequency-locking for gas sensing. Opt Express 2019; 27:33312-33325. [PMID: 31878402 DOI: 10.1364/oe.27.033312] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
A cavity-enhanced Raman spectroscopy (CERS) gas-sensing method is introduced. Using optical feedback frequency-locking, laser radiation provided by a diode laser is coupled into a three-mirror V-shaped optical cavity. An intracavity laser power of 92 W is realized, yielding a power gain factor of 2200. Raman spectrums of air, carbon dioxide, and acetylene are recorded as a demonstration. Multicomponent gas mixtures including isotopic gases can be simultaneously sensed by CERS. With 200 s exposure time, detection limits of 5.35 Pa for N2, 5.07 Pa for O2, 1.74 Pa for CO2, and 0.58 Pa for C2H2 are achieved. CERS is a powerful gas-sensing method with high selectivity and sensitivity, which also has the potential for quantitative analysis of gases with high accuracy.
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Wang Y, Liu L, Wang Y, Fang L, Wan F, Zhang H. Constituent-tunable ternary CoM 2xSe 2(1-x) (M = Te, S) sandwich-like graphitized carbon-based composites as highly efficient electrocatalysts for water splitting. Nanoscale 2019; 11:6108-6119. [PMID: 30869708 DOI: 10.1039/c9nr00191c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Herein, we fabricated two groups of component-tunable sandwich-like CoTe2xSe2(1-x) and CoS2ySe2(1-y) graphitized carbon-based composites. Due to the synergistic effect between the sandwich-like structures and anion-doping, CoTe2xSe2(1-x) and CoS2ySe2(1-y) demonstrated attractive catalytic performance towards the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), respectively. After optimizing the composition, we found that sandwich-like Co(Te0.33Se0.67)2 possesses optimal OER properties, with a low Tafel slope (44 mV dec-1), a small η10 (272 mV) and eminent stability for 50 h; meanwhile, the Co(S0.72Se0.28)2 catalyst presents attractive HER performance, featuring a minimum Tafel slope (80 mV dec-1) and a low η10 (106 mV) in alkaline media. Additionally, density functional theory (DFT) calculations confirmed that ΔGH* of the Co(S0.72Se0.28)2 catalyst (0.182 eV) is closest to zero. Therefore, an alkaline electrolyzer was fabricated using Co(Te0.33Se0.67)2 as the anode and Co(S0.72Se0.28)2 as the cathode; it manifested striking catalytic activity and favorable stability for overall water splitting. This is the first time that the effects of different dopants (Te and S atoms) and doping contents on the electrocatalytic performance of CoSe2 were explored towards overall water splitting. Also, this research provides a new pathway for the fabrication of ternary dianion transition metal dichalcogenides as admirable electrocatalysts for water splitting.
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Affiliation(s)
- Yu Wang
- State Key Laboratory of Power Transmission Equipment &System Security and New Technology, School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044, P.R. China.
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Peng HS, Xie BW, Wan F. [Shang Zhijun, a famous contemporary philogist in herbal literature research]. Zhonghua Yi Shi Za Zhi 2019; 49:34-37. [PMID: 30970423 DOI: 10.3760/cma.j.issn.0255-7053.2019.01.007] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Mr. Shang is a famous herbalist in contemporary China and he devoted his life to the research of herbal literatures. During his lifetime, he has compiled and published a total 19 herbal literatures, 33 works of herbal literature, 268 academic papers, and more than 20 million words of handwritten herbal transcripts. In the field of herbal literature research, he has achieved fruitful results that are highly recognized by the academic communities. The research results can be roughly summarized as four aspects: the establishment of a two-line research network of herbal formulae, the research and collection of lost herbal works, the collation of the survived ancient herbal works and the textual research of famous herbal works. Many of his research results on herbal literature have been included in the modern higher education professional textbooks, and his outstanding academic achievements have opened the door for later scholars, influencing many scholars both home and abroad.
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Affiliation(s)
- H S Peng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - B W Xie
- China Institute for History of Medicine and Medical Literature, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - F Wan
- China Institute for History of Medicine and Medical Literature, China Academy of Chinese Medical Sciences, Beijing 100700, China
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Shi H, Chen W, Wan F, Du L, Zhang S, Zhou W, Zhang J, Huang Y, Zhu C. Application of Self-Assembled Raman Spectrum-Enhanced Substrate in Detection of Dissolved Furfural in Insulating Oil. Nanomaterials (Basel) 2018; 9:nano9010017. [PMID: 30583593 PMCID: PMC6359157 DOI: 10.3390/nano9010017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/14/2018] [Accepted: 12/19/2018] [Indexed: 11/24/2022]
Abstract
Accurate detection of dissolved aging features in transformer oil is the key to judging the aging degree of oil-paper insulation. In this work, in order to realize in situ detection of furfural dissolved in transformer oil, silver nanoparticles were self-assembled on the surface of gold film with P-aminophenylthiophenol (PATP) as a coupling agent. Rhodamine-6G (R6G) was used as the probe molecule to test the enhancement effect. By optimizing the molecular concentration, molecular deposition time, and silver sol deposition time of PATP, the nanoparticles were made more uniform and compact, and an enhanced substrate with rich hot spots was obtained. The optimum substrate was developed, and surface-enhanced Raman spectroscopy (SERS) detection of trace furfural dissolved in transformer oil was realized. The results showed that the substrate prepared under the conditions of 0.1 mol/L PATP, 5 h deposition in PATP and 12 h immersion in silver sol, had the best reinforcement effect (that is, uniform and compact particle arrangement and no particle clusters). By use of this substrate, the minimum detectable concentration of furfural in transformer oil was about 1.06 mg/L, which provides a new method for fast and nondestructive detection of transformer aging diagnosis.
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Affiliation(s)
- Haiyang Shi
- State Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Weigen Chen
- State Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Fu Wan
- State Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Lingling Du
- Chengdu Power Supply Company, Chengdu 610041, China.
| | - Shuhua Zhang
- State Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Weiran Zhou
- State Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Jiayi Zhang
- State Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Yingzhou Huang
- Soft Matter and Interdisciplinary Research Center, Chongqing University, Chongqing 400044, China.
| | - Chengzhi Zhu
- State Grid Zhejiang Electric Power Company, Zhejiang 310000, China.
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Zheng DX, Wan F. [Probe of the compiling stylistic rules and layout of Youyou Xin Shu]. Zhonghua Yi Shi Za Zhi 2018; 48:300-303. [PMID: 30646669 DOI: 10.3760/cma.j.issn.0255-7053.2018.05.007] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Youyou Xin Shu(The New Book on Juveniles)《》is a great book of pediatrics in the Southern Song Dynasty. The book quotes a lot of literature.This paper makes an overall arrangement of the citation, sums up the features of the books cited, corrects some wrong compilations from different texts in various existing versions. Therefore, we can infer the publishing ages and time of some literature related.
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Affiliation(s)
- D X Zheng
- China Institute for History of Medicine and Medical Literature, China Academy of Chinese Medical Sciences, 100700, China
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Su M, Tan X, Yang Q, Zhao C, Wan F, Zhou H. Laboratory comparison of two Aphelinus mali clades for control of woolly apple aphid from Hebei Province, China. Bull Entomol Res 2018; 108:400-405. [PMID: 28958217 DOI: 10.1017/s0007485317000906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Aphelinus mali (Haldeman) is an effective natural enemy of woolly apple aphid (WAA), Eriosoma lanigerum (Hausmann). Previous studies have found that, with WAA from Shandong Province (Qingdao) as the host, there are significant differences in various biological characteristics between a Shandong clade and Liaoning clade of A. mali. The ability of the Shandong clade to control this aphid was significantly higher than that of the Liaoning clade in Shandong Province. In order to determine whether differences were caused by better adaptation of the Shandong parasitoid clade to the population of the host in that province or if it represents a more general fitness of this clade to control the host regardless of location, we compared the same parasitoid clades with hosts from Hebei Province. We found no significant differences in the developmental threshold temperature, effective accumulated temperature, fecundity, longevity, and oviposition period of the two clades, but the duration of host searching of the Shandong clade was significantly longer than that of the Liaoning clade. The instantaneous attack rate, the control ability (a/Th), the search parameter (Q) of the Shandong clade (0.0946, 0.543, 0.0725) of A. mali were higher than that of the Liaoning clade (0.0713, 0.382, 0.0381), and therefore, with WAA from Hebei Province as the host, the host adaptability of the Shandong clade of A. mali was not worse than that of the Liaoning clade, while the pest control ability of the Shandong clade was still greater than that of the Liaoning clade.
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Affiliation(s)
- M Su
- College of Agronomy and Plant Protection, Key Lab of Integrated Crop Pest Management of Shandong Province, Qingdao Agricultural University,Qingdao 266109,China
| | - X Tan
- College of Agronomy and Plant Protection, Key Lab of Integrated Crop Pest Management of Shandong Province, Qingdao Agricultural University,Qingdao 266109,China
| | - Q Yang
- General Station of Plant Protection of Shandong Province,Jinan 250100,China
| | - C Zhao
- College of Life Science, Hebei Normal University of Science and Technology,Qinhuangdao 066004,China
| | - F Wan
- College of Agronomy and Plant Protection, Key Lab of Integrated Crop Pest Management of Shandong Province, Qingdao Agricultural University,Qingdao 266109,China
| | - H Zhou
- College of Agronomy and Plant Protection, Key Lab of Integrated Crop Pest Management of Shandong Province, Qingdao Agricultural University,Qingdao 266109,China
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Deleuze P, Loisance D, Shiiya N, Wan F, Hillion M, Benvenuti C, Heurtematte Y, Cachera J. Irreversible Drop of Systemic Vascular Resistances in Patients Implanted with a Jarvik Total Artificial Heart. Int J Artif Organs 2018. [DOI: 10.1177/039139889101400508] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- P. Deleuze
- Service de Chirurgie Cardiothoracique, Centre de Recherches Chirurgicales (CNRS URA 1431), Hôpital Henri Mondor, Creteil - France
| | - D.Y. Loisance
- Service de Chirurgie Cardiothoracique, Centre de Recherches Chirurgicales (CNRS URA 1431), Hôpital Henri Mondor, Creteil - France
| | - N. Shiiya
- Service de Chirurgie Cardiothoracique, Centre de Recherches Chirurgicales (CNRS URA 1431), Hôpital Henri Mondor, Creteil - France
| | - F. Wan
- Service de Chirurgie Cardiothoracique, Centre de Recherches Chirurgicales (CNRS URA 1431), Hôpital Henri Mondor, Creteil - France
| | - M.L. Hillion
- Service de Chirurgie Cardiothoracique, Centre de Recherches Chirurgicales (CNRS URA 1431), Hôpital Henri Mondor, Creteil - France
| | - C. Benvenuti
- Service de Chirurgie Cardiothoracique, Centre de Recherches Chirurgicales (CNRS URA 1431), Hôpital Henri Mondor, Creteil - France
| | - Y. Heurtematte
- Service de Chirurgie Cardiothoracique, Centre de Recherches Chirurgicales (CNRS URA 1431), Hôpital Henri Mondor, Creteil - France
| | - J.P. Cachera
- Service de Chirurgie Cardiothoracique, Centre de Recherches Chirurgicales (CNRS URA 1431), Hôpital Henri Mondor, Creteil - France
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Zhang LF, Ling YP, Yang H, Gong YC, Song ZM, Wan F. [Comparison of outcomes of two minimally invasive approaches for multi-vessel coronary revascularization]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:1066-1070. [PMID: 29263483] [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: 06/07/2023]
Abstract
OBJECTIVE To compare the safety and effectiveness of two minimally invasive approaches for multi-vessel coronary revascularization. METHODS From August 2014 to February 2017, 70 consecutive patients who underwent minimally invasive coronary artery bypass grafting in Peking University Third Hospital were randomly divided into two groups. In one group, 40 patients underwent staged-hybrid coronary revascularization (staged-HCR) treatment; in the other group, 30 patients underwent minimally invasive total arterial revascularization with bilateral internal thoracic artery (BITA). In staged -HCR group, the patients underwent minimally invasive direct coronary artery bypass grafting (MIDCAB) and percutaneous coronary intervention (PCI) procedure for treatment of multi-vessel disease. In BITA group, the patients underwent total arterial coronary artery bypass grafting with composite "Y" BITA graft. Preoperative and postoperative data of the two groups, including postoperative blood usage, mechanical ventilation time, domiciling duration in intensive care unit (ICU), major adverse cerebral and cardiovascular event (MACCE), and postoperative coronary angiography results were compared, in order to evaluate the safety and effectiveness of these surgical approaches. RESULTS The preoperative characteristics of 70 patients in the two groups showed no significant difference. All the patients underwent successfully, elective minimally invasive multi-vessel coronary artery bypass grafting as scheduled preoperatively. Postoperative result showed the patients in staged-HCR group took advantages in less postoperative mechanical ventilation time [Staged-HCR group (11.2±8.7) h vs. BITA group (18.3±9.1) h, P=0.013], shorter domiciling duration in ICU [Staged-HCR group (26.29±4.05) h vs. BITA group (44.74±28.75) h, P=0.022], and less total drainage [Staged-HCR group (695.57±250.46) mL vs. BITA group (1 103.26±547.44) mL, P=0.03] than the patients in the group of minimally invasive total arterial revascularization with BITA. Postoperative in hospital coronary angiography showed satisfactory graft patency rates in both groups [97.5% in Staged-HCR group vs. 97.8% in BITA group]. No MACCE occurred in both groups during hospitalization. CONCLUSION Staged-HCR is a feasible method for the treatment of multi-vessel revascularization involving right coronary artery. Minimally coronary revascularization with BITA is associated with superior long-term graft patency and it's recommended for patients who could not tolerate dual-antiplatelet therapy. This study shows that both minimally invasive surgical approaches are safe and effective for treatment of patients with multi-vessel coronary artery disease.
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Affiliation(s)
- L F Zhang
- Department of Cardiac Surgery, Peking University Third Hospital, Beijing 100191, China
| | - Y P Ling
- Department of Cardiac Surgery, Peking University Third Hospital, Beijing 100191, China
| | - H Yang
- Department of Cardiac Surgery, Peking University Third Hospital, Beijing 100191, China
| | - Y C Gong
- Department of Cardiac Surgery, Peking University Third Hospital, Beijing 100191, China
| | - Z M Song
- Department of Cardiac Surgery, Peking University Third Hospital, Beijing 100191, China
| | - F Wan
- Department of Cardiac Surgery, Peking University Third Hospital, Beijing 100191, China
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Wan F, Shi H, Chen W, Gu Z, Du L, Wang P, Wang J, Huang Y. Charge Transfer Effect on Raman and Surface Enhanced Raman Spectroscopy of Furfural Molecules. Nanomaterials (Basel) 2017; 7:nano7080210. [PMID: 28767053 PMCID: PMC5575692 DOI: 10.3390/nano7080210] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 07/19/2017] [Accepted: 07/21/2017] [Indexed: 11/30/2022]
Abstract
The detection of furfural in transformer oil through surface enhanced Raman spectroscopy (SERS) is one of the most promising online monitoring techniques in the process of transformer aging. In this work, the Raman of individual furfural molecules and SERS of furfural-Mx (M = Ag, Au, Cu) complexes are investigated through density functional theory (DFT). In the Raman spectrum of individual furfural molecules, the vibration mode of each Raman peak is figured out, and the deviation from experimental data is analyzed by surface charge distribution. In the SERS of furfural-Mx complexes, the influence of atom number and species on SERS chemical enhancement factors (EFs) are studied, and are further analyzed by charge transfer effect. Our studies strengthen the understanding of charge transfer effect in the SERS of furfural molecules, which is important in the online monitoring of the transformer aging process through SERS.
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Affiliation(s)
- Fu Wan
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Haiyang Shi
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Weigen Chen
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Zhaoliang Gu
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Lingling Du
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Pinyi Wang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Jianxin Wang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Yingzhou Huang
- Soft Matter and Interdisciplinary Research Center, College of Physics, Chongqing University, Chongqing 400044, China.
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Wan F, Sumption MD, Rindfleisch MA, Tomsic MJ, Collings EW. Architecture and Transport Properties of Multifilamentary MgB 2 Strands for MRI and Low AC Loss Applications. IEEE Trans Appl Supercond 2017; 27:6200105. [PMID: 28827975 PMCID: PMC5562374 DOI: 10.1109/tasc.2016.2632419] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Standard in-situ type MgB2 strands manufactured by Hyper Tech Inc have 19 - 36 subelements, a monel outer sheath, and a Cu interfilamentary matrix. Typical transport Jc s of the strands are 2×105 A/cm2 with n-values of 20 - 30 at 4.2 K and 5 T. This work introduces two new MgB2 conductor designs. First, a new class of MgB2 strand is designed for magnetic resonance imaging applications. This type has a higher Cu content designed to enhance protection of a magnet wound with it, and a larger diameter to increase the critical current. Second, a new class of low AC loss MgB2 strand with high filament count and a high resistance matrix is discussed. Transport properties at 4.2 K and fields up to 10 T are reported. Optical techniques are used to study the macro- and micro-structures of these MgB2 strands.
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Affiliation(s)
- F Wan
- Center for Superconducting and Magnetic Materials (CSMM), Dept. of Materials Science and Engineering, The Ohio State University, Columbus, OH, USA
| | - M D Sumption
- Center for Superconducting and Magnetic Materials (CSMM), Dept. of Materials Science and Engineering, The Ohio State University, Columbus, OH, USA
| | | | | | - E W Collings
- Center for Superconducting and Magnetic Materials (CSMM), Dept. of Materials Science and Engineering, The Ohio State University, Columbus, OH, USA
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Ma T, Xu L, Wang H, Guo X, Li Z, Wan F, Chen J, Liu L, Liu X, Chang G, Chen G. Identification of the crucial genes in the elimination and survival process of Salmonella enterica ser. Pullorum in the chicken spleen. Anim Genet 2017; 48:303-314. [PMID: 28176342 DOI: 10.1111/age.12533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2016] [Indexed: 12/11/2022]
Abstract
Salmonella enterica ser. Pullorum is one of the most easily re-infecting pathogens in poultry production because of its mechanism of escaping from immune elimination. We used the transcriptome method to investigate the variation in gene expression in chicken spleen resulting from the interaction between hosts and S. Pullorum in the survival process. The expression of various genes related to the maturation and activation of B cells was activated before S. Pullorum was eliminated, which might help S. Pullorum escape from the elimination process. The suppression of some genes involved in the fusion of autophagosomes and lysosomes, such as MYO6, was identified and may be regulated by the secretion systems of S. Pullorum. In addition, a large proportion of these differentially expressed genes could be localized in the identified quantitative trait loci regions associated with the antibody response to bacteria. Collectively, these identified genes provided an outline for further understanding the interaction between chicken immune cells and S. Pullorum in chicken spleen.
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Affiliation(s)
- T Ma
- Animal Genetic Resources Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - L Xu
- Animal Genetic Resources Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - H Wang
- Animal Genetic Resources Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - X Guo
- Animal Genetic Resources Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Z Li
- Animal Genetic Resources Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - F Wan
- Animal Genetic Resources Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - J Chen
- Animal Genetic Resources Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - L Liu
- Animal Genetic Resources Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - X Liu
- Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou, Jiangsu, 225125, China
| | - G Chang
- Animal Genetic Resources Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - G Chen
- Animal Genetic Resources Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
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Affiliation(s)
- W. Liu
- University of Southampton; UK
| | | | - F. Bretz
- Novartis Pharma; Basel Switzerland
- Shanghai University of Finance and Economics; People's Republic of China
| | | | - P. Yang
- Chinese University of Hong Kong; People's Republic of China
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Gong X, Liu Y, Yao S, Zheng J, Wan F, Xiang X, Chai X. Correlation between adiponectin and hemorrhagic shock in mice. Genet Mol Res 2016; 15:gmr7037. [DOI: 10.4238/gmr.15017037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Long JP, Wan F, Zhang F, Zhou J, Don LF. DTC chemotherapy regimen is associated with higher incidence of premature ovarian failure in women of reproductive age with breast cancer. Eur Rev Med Pharmacol Sci 2016; 20:1087-1092. [PMID: 27049261] [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: 06/05/2023]
Abstract
OBJECTIVE Different chemotherapy regimens may contribute differently to the development of Premature Ovarian Failure (POF) in women of reproductive age with breast cancer. Here we evaluated how two different chemotherapy regimens, CAF (tegafur + pirarubicin + ifosfamide) and DTC (docetaxel + pirarubicin + ifosfamide), affect the development of POF. PATIENTS AND METHODS We enrolled 164 women of reproductive age with breast cancer (mean ± SD age of 34.56 ± 9.48 years). The patients were divided into two groups, which were respectively treated with CAF (n = 89) or DTC (n = 75) chemotherapy regimen. Both study groups were comparable in all analyzed characteristics at baseline. Patients were treated with respective chemotherapy regimen for 6 months and followed up for over 12 months after completion of chemotherapy. Study outcomes were occurrence rates of POF, menstrual status and recovery after completion of chemotherapy, and serum levels of follicle stimulating hormone (FSH), luteinizing hormone (LH), and oestradiol (E2). RESULTS At 6 months after completion of chemotherapy, POF incidence rates were significantly lower in the CAF group. Furthermore, the proportion of patients with eumenorrhea, menstrual disorders or chemotherapy-induced amenorrhea in this study group was also significantly different from the DTC group. Similarly, adverse changes of serum levels of FSH, LH and E2 were less pronounced in the CAF group. CONCLUSIONS Both tested chemotherapy regimens can cause POF; however, adverse effects of DCT chemotherapy regimen on ovarian function are more pronounced than those by CAF chemotherapy regimen.
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Affiliation(s)
- J-P Long
- Department of General Surgery, The Women's Hospital, School of Medicine, Zhejiang University, HangZhou, Zhejiang Province, China.
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Qiu L, Xu L, Guo X, Li Z, Wan F, Liu X, Chen G, Chang G. Gene expression changes in chicken NLRC5 signal pathway associated with in vitro avian leukosis virus subgroup J infection. Genet Mol Res 2016; 15:gmr7640. [DOI: 10.4238/gmr.15017640] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wang HZ, Ma T, Chang GB, Wan F, Liu XP, Lu L, Xu L, Chen J, Chen GH. Single nucleotide polymorphism screening, molecular characterization, and evolutionary aspects of chicken Piwi genes. Genet Mol Res 2015; 14:14802-10. [PMID: 26600541 DOI: 10.4238/2015.november.18.45] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The P-element-induced wimpy testis (Piwi) gene is involved in germline stem cell self-renewal, meiosis, RNA silencing, and transcriptional regulation. Piwi genes are relatively well conserved in many species, but their function in poultry species is unclear. In this study, Piwi genes were sequenced using a target-sequence capture assay in quail and 28 breeds of chicken. Single nucleotide polymorphisms (SNPs) and evolutionary aspects of these chicken breeds were then analyzed. We found that SNP sites existed mainly in the introns of a few chicken breeds, and we selected an SNP on intron 4 for further verification by Sanger sequencing, the results of which were similar to those obtained by the target-capture sequencing assay. The evolutionary analysis revealed that there were more mutations in the Chahua and Leghorn breeds than in the other breeds, and that the phylogenetic tree was divided into four main categories that suggested that Piwi is evolutionarily conserved, and mutations in the introns might be associated with gametogenesis. The screened SNPs can be used as candidate markers for Piwi, and our results provide basic information for the further study of Piwi function in poultry.
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Affiliation(s)
- H Z Wang
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - T Ma
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - G B Chang
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - F Wan
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - X P Liu
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - L Lu
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - L Xu
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - J Chen
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - G H Chen
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Wan F, Chen WG, Gu ZL, Zou JX, DU LL, Qi W, Zhou Q. [Measurement of Trace C2H6 Based on Optical-Feedback Cavity-Enhanced Absorption Spectroscopy]. Guang Pu Xue Yu Guang Pu Fen Xi 2015; 35:2792-2796. [PMID: 26904820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Ethane is one of major fault characteristic gases dissolved in power transformer, the detection of Ethane with high accuracy and sensitivity is the key of dissolved gas analysis. In this paper, based on optical feedback theory and cavity-enhanced absorption spectroscopy, combined with quantum cascade laser, a detection system for dissolved gas C2 H6 in transformer oil was built up. Based on the symmetry of the individual cavity modes, the phase matching of returning light in resonance with the cavity was achieved through LabVIEW codes. The optical feedback effect that the emitted light return to the laser cavity after a small delay time and lock to the resonance frequency of cavity, even and odd modes effect that the higher modes and lower modes structure will build up alternatively, and threshold current lowering effect of about 1.2 mA were studied and achieved. By cavity ring-down spectroscopy, the effective reflectivity of 99.978% and cavity finesse of 7 138.4 is obtained respectively. The frequency selectivity is 0.005 2 cm(-1). With an acquisition time of 1s, this optical system allows detection for the PQ3 band of C2 H6 with high accuracy of 95.72% ± 0.17% and detection limit of (1.97 ± 0.06) x 10(-3) μL x L(-1) at atmospheric pressure and temperature of 20 degrees C, which lays a foundation for fault diagnose from dissolved gas analysis.
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Abid S, Boiron E, Tissot C, Houssaini A, Czibik G, Sawaki D, Marcos E, Wan F, Dubois-Randé J, Hamon M, Derumeaux G, Adnot S. The role of 5-HT2B receptors in development of valvulopathy, cardiomyopathy, and pulmonary hypertension in Fawn-Hooded rats. Rev Mal Respir 2015. [DOI: 10.1016/j.rmr.2015.02.059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wan F, Houssaini A, Abid S, Mouraret N, Rideau D, Gellen B, Marcos E, Amsellem V, Derumeaux G, Dubois-Rande J, Letavernier E, Baud L, Adnot S. Extracellular calpastatin protects against hypoxia-induced pulmonary hypertension (PH) in mice and is elevated in human PH. Rev Mal Respir 2015. [DOI: 10.1016/j.rmr.2015.02.014] [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: 11/30/2022]
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Parpaleix A, Houssaini A, Latiri M, Abid S, Wan F, Amsellem V, Ryffel B, Marcos E, Couillin I, Adnot S. Involvement of interleukin-1 receptor (IL1R1) and myeloid differentiation primary response gene 88 (MyD88) signaling in pulmonary hypertension (PH). Rev Mal Respir 2015. [DOI: 10.1016/j.rmr.2015.02.056] [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: 11/28/2022]
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Houssaini A, Abid S, Wan F, Rideau D, Mouraret N, Breau M, Marcos E, Dubois-Rande J, Derumeaux G, Pende M, Adnot S. Selective TSC1 deletion in smooth muscle results in mTOR signaling activation and development of pulmonary hypertension that can be reversed by rapamycin. Rev Mal Respir 2015. [DOI: 10.1016/j.rmr.2015.02.055] [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: 10/23/2022]
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