NEOHELICON
·
2026
·
IF 0.2
Zhou Chenglong
In this study, I investigate the literary variation of Mulan’s tale within digital fandom, focusing on queer fanarts of Disney’s Mulan (1998) collected from American social media platform Pinterest. Drawing on a hybrid framework of fandom and queer theories, I argue that these fan generated works constitute a legitimate and transformative layer of the story’s literary variation. Specifically, lesbian, transgender, and gay rewritings introduce queer heterogeneity that challenges heteronormativity by offering positive representations of gender minorities. Yet these subversive rewritings also reproduce racialized stereotypes of Asian masculinity, revealing the limitations of grassroots political imagination in digital art. Extending beyond this single case, I conclude this essay by reevaluating digital fandom’s position within Pierre Bourdieu’s literary field. I contend that radical media change has inverted its traditional hierarchy: commercial media adapters and fans now challenge the positional authority once held by elites, making grassroots digital creation a vital yet contested force in contemporary literary production.
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高影响因子
IONICS
·
2026
·
IF 3.4
Luo Zhangyang,Yuan Mao,Zhao Peng,Yang Xulin,Zhang Qian
Electrochemical water electrolysis has become a prominent strategy to produce H2 and O2 from renewable sources. Herein, the unique CeO2/Fe3O4-0.2 composite with spindle morphology was synthesized through a hydrothermal and high-temperature calcination method. The CeO2 exhibit a variable chemical valence of Ce4+/Ce3+ and generate much oxygen vacancies through redox reactions. The synergy effect between Fe3O4 and CeO2 leads to increase the number of active sites, accelerate the charge transfer process, and enhance the interface between the electrode and electrolyte. The CeO2/Fe3O4-0.2 displays a low overpotential of 305 mV for oxygen evolution reaction (OER) and 73 mV for the hydrogen evolution reaction (HER) at 10 mA cm-2 in 1 M KOH. Additionally, this composite catalyst exhibits outstanding durability and only a slight potential change observed over 100 h for OER. The cell voltage of electrolysis electrolyzer using CeO2/Fe3O4-0.2 as both anode and cathode is 1.56 V to drive 10 mA cm-2. This research effort delivers a complete advantage for the development of cost-effective and highly active bifunctional catalysts for overall water splitting.
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高影响因子
Food Analytical Methods
·
2026
·Vol. 19
·期 12
·407
·
IF 3
Chen Qiming,Zhang Hua,Duan Ke,Gao Qinghua,Frango Alberto,Liu Zhanmin
CRISPR/Cas9 genome editing is increasingly used in crop improvement, creating a need for practical tools to screen plant-derived materials for retained editing components. We developed a probe-free fluorescent loop-mediated isothermal amplification (LAMP) assay that uses thioflavin T (ThT) to detect the Cas9 coding sequence in genome-edited tomato materials. Under the tested conditions, the fluorescence calibration yielded an operational plasmid-based threshold estimate of 4.34 copies/μL; this value is not a validated limit of detection, and additional low-copy replicates are required. Cas9-positive tomato DNA was distinguished from wild-type tomato, four tested non-target plant DNA samples, and a no-template control, and four independent Cas9-positive tomato lines generated positive signals. Analysis of G-rich amplicon motifs and sequence-matched oligonucleotides suggested sequence-dependent contributions to ThT fluorescence, although G-quadruplex formation in LAMP products was not directly confirmed. The assay uses the same Cas9 target and primer framework as a previous HNB-based colorimetric method; its contribution is an instrument-recorded, probe-free fluorescence readout rather than broader target coverage or demonstrated superiority over existing fluorescent chemistries. The method is therefore a proof-of-concept approach for preliminary screening. Validation in processed foods, formal threshold development, low-copy replication, and closed-tube implementation remain necessary before routine use.
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高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-8
·
IF 16.6
Wang Xiaohan,Wang Hao,Ma Liang,Zhang Labao,Yang Zhuolin,Dong Daxing,Chen Xi,Li Haochen,Guan Yanqiu,Zhang Biao,Chen Qi,Shi Lili,Li Hui,Qin Zhi,Tu Xuecou,Zhang Lijian,Jia Xiaoqing,Chen Jian,Kang Lin,Wu Peiheng
Superconducting nanocircuits, which are usually fabricated from superconductor films, are the core of superconducting electronic devices. While emerging transition-metal dichalcogenide superconductors (TMDSCs) with exotic properties show promise for exploiting new superconducting mechanisms and applications, their environmental instability leads to a substantial challenge for the nondestructive preparation of TMDSC nanocircuits. Here, we report a universal strategy to fabricate TMDSC nanopatterns via a topotactic conversion method using prepatterned metals as precursors. Typically, robust NbSe 2 meandering nanowires can be controllably manufactured on a wafer scale, by which a superconducting nanowire circuit is principally demonstrated toward potential single photon detection. Moreover, versatile superconducting nanocircuits, e.g ., periodical circle/triangle hole arrays and spiral nanowires, can be prepared with selected TMD materials (NbS 2 , TiSe 2 , or MoTe 2 ). This work provides a generic approach for fabricating nondestructive TMDSC nanocircuits with precise control, which paves the way for the application of TMDSCs in future electronics.
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PubMed
高影响因子
Microbial Cell Factories
·
2021
·Vol. 20
·期 1
·1-11
·
IF 5.328
Wan Yupeng,Liu Hongchen,Xian Mo,Huang Wei
Background 1-Hydroxyphenazine (1-OH-PHZ) is a phenazine microbial metabolite with broad-spectrum antibacterial activities against a lot of plant pathogens. However, its use is hampered by the low yield all along. Metabolic engineering of microorganisms is an increasingly powerful method for the production of valuable organisms at high levels. Pseudomonas chlororaphis is recognized as a safe and effective plant rhizosphere growth-promoting bacterium, and faster growth rate using glycerol or glucose as a renewable carbon source. Therefore, Pseudomonas chlororaphis is particularly suitable as the chassis cell for the modification and engineering of phenazines. Results In this study, enzyme PhzS (monooxygenase) was heterologously expressed in a phenazine-1-carboxylic acid (PCA) generating strain Pseudomonas chlororaphis H18, and 1-hydroxyphenazine was isolated, characterized in the genetically modified strain. Next, the yield of 1-hydroxyphenazine was systematically engineered by the strategies including (1) semi-rational design remodeling of crucial protein PhzS, (2) blocking intermediate PCA consumption branch pathway, (3) enhancing the precursor pool, (4) engineering regulatory genes, etc. Finally, the titer of 1-hydroxyphenazine reached 3.6 g/L in 5 L fermenter in 54 h. Conclusions The 1-OH-PHZ production of Pseudomonas chlororaphis H18 was greatly improved through systematically engineering strategies, which is the highest, reported to date. This work provides a promising platform for 1-hydroxyphenazine engineering and production. Graphical Abstract
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PubMed
高影响因子
Advanced Composites and Hybrid Materials
·
2022
·Vol. 5
·期 3
·2051-2065
·
IF 11.806
Feng Yu,Li Yingchun,Almalki Abdulraheem S. A.,Meng Xiangning,Alhadhrami A.,Ye Xinming,Ibrahim Mohamed M.,Guo Xin,Algadi Hassan,Huang Mina,Winchester William,Wang Zhe
A PBSeT copolyester was synthesized by introducing a polar amide unit into the molecular chain, coordinating with decyldiamine through hydrogen bonds between the amide groups and hydrogen atoms on the chains. Two-step esterification and one-step polycondensation melt polymerization were adopted. ATR-FTIR and HNMR demonstrated the successful introduction of the amide unit. The effect of adding an amide unit on many properties was also discussed. Due to the formation of hydrogen bonds, both the force of molecular chain and the crystallinity increased by 5.91%. Consequently, yield and tear strength increased by 40.7% and 74.8%, respectively. The addition of 1,10-decyldiamine has no significant effect on the glass transition temperature and thermal stability of polyester. The introduction of an amide unit decreased free volume and increased combined crystallinity, which also increased the water vapor barrier. At the same time, PBSeT copolyester still maintained its biodegradability under hydrolysis and enzymatic hydrolysis. Addtionally, the change of surface morphology upon the degradation was examed by AFM. This work discussesed a synthesis method of PBSeT copolyester strengthened by the hydrogen bond. The modified material has higher crystallinity, better mechanical properties, and a better water vapor barrier while maintaining certain biodegradation ability. It can be used in disposable products, food packaging, and other fields.
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高影响因子
JOURNAL OF FLUORESCENCE
·
2022
·Vol. 33
·期 2
·575-586
·
IF 2.525
Zhou Boxin,Han Yunlong,Liu Jingyu,Cheng Kai,Dong Mingdong,Tang Xu
Hypochlorite is an important biological reactive oxygen species, which plays a pivotal role in various life activities. Excessive presence in the human body or excessive intake in life causes a series of diseases. To monitor the hypochlorite level in living cells, organisms and environment water samples, we herein designed and synthesized three organic small molecule fluorescent probes with different recognition sites based on nitrile biphenyl. Through performance comparison, it was found that probe A-HM exhibited the best detection performance for hypochlorite with a low detection limit of 2.47 × 10 –6 M. The introduction of hypochlorite will induce probe fluorescence A-HM to turn on, and the fluorescence colour will change from colourless to green. The application of A-HM in biological systems has been demonstrated by the imaging monitoring of hypochlorite in MCF-7, L929 cells and zebrafish. Furthermore, A-HM was also used for the accurate determination of the hypochlorite level in real water samples with high sensitivity and good recoveries.
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DOI
PubMed
高影响因子
IONICS
·
2018
·Vol. 25
·期 6
·2781-2789
·
IF 2.347
Chen Yujuan,Sun Li,Lu Zhiwei,Liu Zhaoen,Jiang Yuyang,Zhuo Kelei
In this paper, nitrogen and sulfur co-doped graphene aerogel (NS-GA) was successfully prepared using ionic liquid 1-(4-mercaptobutyl)-3-methylimidazolium bromide (HS-BMIMBr) as both reductant and dopant by a one-step hydrothermal method. The results of X-ray diffraction indicate that the doping of heteroatoms into graphene increases its degree of defects. In addition, scanning electron microscopy measurements and nitrogen adsorption–desorption analysis reveal that the as-prepared NS-GA has unique hierarchical porous nanostructures, which supply efficient networks for ionic transports and electron transfer. The symmetric electrical double-layer capacitors (EDLCs) based on the NS-GA with ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate, EMIMBF 4 ) as the electrolyte show excellent capacitive performance. And the NS-GA has a high specific capacitance of 182.3 F g −1 at a current density of 1 A g −1 . Moreover, there is a high energy density of 101 Wh kg −1 at a power density of 1 kW kg −1 . Therefore, the NS-GA can be considered as a favorable electrode material for high-performance energy storage devices.
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高影响因子
CHROMATOGRAPHIA
·
2017
·Vol. 80
·期 3
·463-471
·
IF 1.402
Xu Mei,Chen Kun,Luo Chen,Song Guoxin,Hu Yaoming,Cheng Hefa
Abstract In this paper, a simple but efficient method for the extraction and analysis of bifenthrin in water samples was proposed. The Fe 3 O 4 -based nanocomposites (Fe 3 O 4 @m-SiO 2 /PSA@Zr-MOF) were successfully synthesized and developed as adsorbents for magnetic solid-phase extraction. With the solvothermal reaction and sol–gel method, the resultant adsorbents exhibited excellent characteristics of large surface areas, homogeneous pore size, strong magnetic responsivity and high hydrophilicity. The parameters affecting the extraction performance including adsorbent amounts, adsorption time, species of eluents and desorption time were investigated. Under the optimal conditions, validation experiments such as recovery, reproducibility and limits of detection (LOD) were carried out and showed satisfactory results. The LOD of the targeted analytes was found to be 0.5 μg L −1 . The average recovery was 103.2% with the intra-day and inter-day relative standard deviations of 2.0 and 3.5%, respectively. Ultimately, the novel magnetic adsorbents were successfully applied to detect the bifenthrin compound in real water samples. Graphical Abstract
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高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2019
·Vol. 23
·期 12
·3383-3389
·
IF 2.531
Potapenko Anna V.,Wu Mengqiang,Kirillov Sviatoslav A.
Lithium-manganese-rich–lithiated nickel-manganese-cobalt oxides are advantageous for using in lithium-ion batteries due to low toxicity and high specific capacity but suffer from low high-rate capability. In this paper, characterization and electrochemical testing of 0.5Li 2 MnO 3 ·0.5LiNi 0.5 Mn 0.3 Co 0.2 O 2 (Li 1.2 Ni 0.2 Mn 0.52 Co 0.08 O 2 ) obtained by means of a citric acid–aided route is described. It demonstrates excellent electrochemical performance possessing specific capacity equal to the theoretical value (280 mAh g −1 ), being able to be discharged with currents of 2240 mA g −1 (8 C), having high coulombic efficiency (~ 99%) even after high-rate tests, and manifesting low capacity fade after high current loads and upon further cycling by 0.1 C currents (0.144 mAh g −1 per cycle).
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高影响因子
International Journal of Industrial Chemistry
·
2020
·Vol. 11
·期 2
·133-145
·
IF 0
Mpelwa Musa,Tang Shanfa,Jin Lijun
Mineral scale deposit is one of the major problems incessantly faced in the oil and gas producing wells and surface facilities, and if not well-handled can cause an unsuccessful petroleum production. To eradicate scale deposits, scale inhibitors (SIs) are commonly deployed into industrial water systems. Because of effectiveness and long squeeze lifetimes, organic phosphonate SIs are extensively used for preventing mineral scale formation in industrial water systems. However, they usually exhibit lower Ca 2+ and Mg 2+ tolerances that restrict their applications in harsh conditions where high inhibitory dosages are needed. In this paper, a multifunctional aminoalkylenephosphonate-based antiscalant having higher Ca 2+ and Mg 2+ tolerances is studied. The antiscalant was synthesized, characterized (FTIR and NMR spectroscopies), and evaluated in accordance with the NACE Standard Method (TM0374) for preventing CaSO 4 and CaCO 3 formation in the petroleum industry. The effects of inhibitory dosages, water hardness, temperature, incubation period, and pH were studied. We further tested the performance of the antiscalant in simulated field waters. Experimental results show that the multifunctional aminoalkylenephosphonate-based antiscalant has better inhibitory properties as compared to conventional aminoalkylenephosphonate-based SIs. The incorporation of the sulfonate group into the molecule significantly improved the solubility of the antiscalant and hence its tolerances to Ca 2+ and Mg 2+ ions. Also, it bolstered thermal stability of the inhibitor. The results from simulated field conditions are promising. The synthesized antiscalant performed superbly than the conventionally aminomethylenephosphonate antiscalants where Ca 2+ and Mg 2+ concentrations are challenging.
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Frontiers of Materials Science
·
2015
·Vol. 10
·期 1
·73-79
·
IF 1
Gao Rui,Ge Wen-jun,Miao Shu,Zhang Tao,Wang Xian-ping,Fang Qian-feng
The grain morphology, nano-oxide particles and mechanical properties of oxide dispersion strengthened (ODS)-316L austenitic steel synthesized by electron beam selective melting (EBSM) technique with different post-working processes, were explored in this study. The ODS-316L austenitic steel with superfine nano-sized oxide particles of 30–40 nm exhibits good tensile strength (412 MPa) and large total elongation (about 51%) due to the pinning effect of uniform distributed oxide particles on dislocations. After hot rolling, the specimen exhibits a higher tensile strength of 482 MPa, but the elongation decreases to 31.8% owing to the introduction of high-density dislocations. The subsequent heat treatment eliminates the grain defects induced by hot rolling and increases the randomly orientated grains, which further improves the strength and ductility of EBSM ODS-316L steel.
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DOI
高影响因子
危险品化学品经营许可证（带存储）