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  • 1
    In: Energy Technology, Wiley, Vol. 8, No. 6 ( 2020-06)
    Abstract: A facile method to prepare Fe–N–C catalysts with a 3D porous structure is reported, where melamine foam is used as the self‐sacrificed template, and citric acid (CA) and iron salts are used as the precursors. The morphology and chemical valence state of the surface elements of the catalyst are characterized. Cyclic voltammetry (CV), liner scanning voltammetry (LSV), and electrochemical impedance spectroscopy (EIS) are used to evaluate the catalytic performance on the oxygen reduction reaction (ORR). The catalyst CA‐Fe/MF‐N900 (calcinated at 900 °C) exhibits the best ORR performance. In alkaline electrolyte, the ORR current starts at 0.98 V versus reversible hydrogen electrode (RHE). The half‐wave potential (E 1/2 ) is 0.83 V versus RHE, and the limiting current density reaches 5.3 mA cm −2 . After 1000 cycles, E 1/2 merely shifts negatively by 7 mV. The Zn–air battery fabricated with the CA‐Fe/MF‐N900 as the cathode catalyst displays outstanding discharging performance with peak power density of 158 mW cm −2 and long‐term stability. The enhanced catalytic activity can be attributed to the advanced 3D interconnected porous architecture of the Fe–N–C catalyst, which can not only accommodate abundant active sites but also significantly reduce the mass/charge transfer resistance.
    Type of Medium: Online Resource
    ISSN: 2194-4288 , 2194-4296
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2700412-0
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  • 2
    In: International Journal of Immunogenetics, Wiley, Vol. 47, No. 2 ( 2020-04), p. 169-174
    Abstract: Endometrial cancer (EC) is one of the most common malignant tumours of the female genital tract, and it has become a serious malignant disease of the female genital tract in China. Existing researches have revealed the association between polymorphisms of IL‐1A and several gynaecological diseases. In this research, we analysed the association between IL‐1A gene polymorphisms and endometrial cancer susceptibility in Chinese female population. A total of 81 patients and 198 healthy people were selected. Odds ratio (OR) and 95% confidence intervals (CIs) were calculated using unconditional logistic regression. Genetic models and analyses showed that IL‐1A rs3783550 TT and rs3783546 CC increased the risk of endometrial cancer under the recessive model, respectively (rs3783550: OR = 2.80, 95%CI: 1.32–5.92, p  = .008; rs3783546: OR = 2.79, 95%CI: 1.32–5.89, p  = .008). In the recessive model, we also found that both IL‐1A rs1609682 and IL‐1A rs3783521 increased the risk of endometrial cancer, respectively (rs1609682: OR = 2.79, 95%CI: 1.32–5.89, p  = .0081; rs3783521: OR = 2.80, 95%CI: 1.32–5.92, p  = .008). Haplotype analysis was performed that did not reveal any significant results. In summary, IL‐1A rs3783550, rs3783546, rs1609682 and rs3783521 polymorphisms may be associated with an increased risk of endometrial cancer in Chinese female populations.
    Type of Medium: Online Resource
    ISSN: 1744-3121 , 1744-313X
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2179530-7
    SSG: 12
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  • 3
    In: Small, Wiley, Vol. 16, No. 34 ( 2020-08)
    Abstract: From manufacture to disposal, the interaction of graphdiyne based nanomaterials with living organisms is inevitable and crucial. However, the cytotoxic properties of this novel carbon nanomaterial are rarely investigated, and the mechanisms behind their cytotoxicity are totally unknown. In this study, the antibacterial activity of graphdiyne (GDY) and graphdiyne oxide (GDYO) is reported. GDY is capable of inhibiting broad‐spectrum bacterial growth while exerting moderate cytotoxicity on mammalian cells. In comparison, GDYO exhibits lower antibacterial activity than that of GDY. Then an alterable, synergetic antibacterial mechanism of GDY, involving wrapping bacterial membrane, membrane insertion and disruption, and reactive oxygen species generation is demonstrated, while the differential gene expression analysis indicates that GDY could only alter the bacterial metabolism slightly and the oxidative stress route may be a minor bactericidal factor. The investigation of the antibacterial behaviors of GDY based nanomaterials may provide useful guidelines for the future design and application of this novel molecular allotrope of carbon.
    Type of Medium: Online Resource
    ISSN: 1613-6810 , 1613-6829
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2168935-0
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  • 4
    In: Journal of Cellular Physiology, Wiley, Vol. 233, No. 6 ( 2018-06), p. 4652-4665
    Abstract: Promyelocytic leukemia zinc finger PLZF, known as ZBTB16 or ZFP145 is a critical zinc finger protein of male germline stem cells (mGSCs), it's an essential transcriptional factor for goat testis development and spermatogenesis. Loss of PLZF results in progressive depletion of SSCs after the first wave of spermatogenesis leading to eventual spermatogenic arrest, apparently the result of a shift in the balance in SSC fate away from self‐renewal and toward differentiation. Cumulating evidences have demonstrated that microRNAs are expressed in a cell‐specific or stage‐specific manner during spermatogenesis and acts as regulators on specific makers such as Stra8, ETV5, and PLZF. However, the post transcriptional function of PLZF still poorly elucidate in mGSCs. Bioinformatic analysis and dual luciferase reporter assay showed that miR‐19b‐3p binds the 3′UTR of PLZF, suggesting that PLZF is a direct target of miR‐19b‐3p. The profile of miR‐19b‐3p and PLZF analyzed in dairy goat testis at different age showed that miR‐19b‐3p was significantly up‐regulated in goat testis at 1, 3, 6 months and downregulated at 12, 18, and 24 months which was inversely correlated with PLZF in the same testis. Focusing on the role of miR‐19b‐3p, we found that miR‐19b‐3p changes c‐KIT and mTOR signaling through PLZF to promote proliferation in goat nGSCs and infertile mice testes. Over‐expression of PLZF significantly reversed miR‐19b‐3p‐mediated proliferation in mice testes. We found also that miR‐19b‐3p reduced heterochromatin‐mediated senescence through PLZF localized on HP1α. Taken together, our findings indicate that miR‐19b‐3p promotes proliferation and reduces heterochromatin‐mediated senescence through PLZF in mGSCs.
    Type of Medium: Online Resource
    ISSN: 0021-9541 , 1097-4652
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 1478143-8
    SSG: 12
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  • 5
    In: Aggregate, Wiley
    Abstract: Designing a theranostic probe for noninvasive bone imaging and bone disease therapy is both challenging and desirable. Herein, an ultrasmall Au nanocluster (NC, 〈 2 nm)‐based theranostic probe is developed to achieve highly temporospatial in vivo bone‐targeted photoluminescence (PL) imaging in the second near‐infrared window (NIR‐II) and enhanced rheumatoid arthritis (RA) therapy. The key design of the probe involves the surface phosphorylation of atomically precise NIR‐II emitting Au 44 NCs. This phosphorylation enhances the bone‐targeting ability of the probe due to the highly concentrated phosphate groups, allowing the probe to realize in vivo bone‐targeted NIR‐II PL imaging. Moreover, benefiting from the enhanced bone‐targeting ability, ultrasmall hydrodynamic diameter, and excellent anti‐inflammation and immunomodulatory effects, the probe not only demonstrates superior therapeutic efficacy for RA rats, effectively restoring the destructed cartilage to nearly normal but also exhibits good renal clearance and benign biocompatibility. These favorable attributes cannot be achieved by commercial methotrexate used for RA treatment. This study presents a new design paradigm for metal NC‐based theranostic probes, offering the potential for high‐resolution bone‐targeted PL imaging and improved RA therapy.
    Type of Medium: Online Resource
    ISSN: 2692-4560 , 2692-4560
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 3045361-6
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  • 6
    In: International Journal of Applied Ceramic Technology, Wiley
    Abstract: Mn‐doped (1‐ x )Bi 0.5 (Na 0.8 K 0.2 ) 0.5 TiO 3 ‐ x BiAlO 3 (Mn:BNKT‐ x BA) thin films were synthesized on lanthanum nickelate‐coated silicon substrates by sol‐gel method. The second phase issue of the film can be effectively addressed by optimizing the substrate, and the maximum polarization and breakdown strength can be increased by introducing the proper amount of Al 3+ , which is advantageous for the film for energy storage. The results have shown that the Mn:BNKT‐0.03BA film exhibits superior ferroelectric properties (with remanent polarization (P r ) of 23.72 µC/cm 2 , maximum polarization (P max ) of 75.37 µC/cm 2 ), which could be an excellent candidate for ferroelectric thin film capacitors.
    Type of Medium: Online Resource
    ISSN: 1546-542X , 1744-7402
    Language: English
    Publisher: Wiley
    Publication Date: 2024
    detail.hit.zdb_id: 2167226-X
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  • 7
    Online Resource
    Online Resource
    Wiley ; 2006
    In:  Crystal Research and Technology Vol. 41, No. 4 ( 2006-04), p. 323-327
    In: Crystal Research and Technology, Wiley, Vol. 41, No. 4 ( 2006-04), p. 323-327
    Type of Medium: Online Resource
    ISSN: 0232-1300 , 1521-4079
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2006
    detail.hit.zdb_id: 1480828-6
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  • 8
    In: Advanced Functional Materials, Wiley, Vol. 32, No. 20 ( 2022-05)
    Abstract: Plasmon stimulation represents an appealing way to modulate enzyme mimic functions, but utilization efficiency of plasmon excitation remains relatively low. To overcome this drawback, a heterojunction composite based on graphdiyne nanowalls wrapped hollow copper sulfide nanocubes (CuS@GDY) with strong localized surface plasmon resonance (LSPR) response in the near‐infrared (NIR) region is developed. This nanozyme can concurrently harvest LSPR induced hot carriers and produce photothermal effects, resulting in dramatically increased peroxidase‐like activity when exposed to 808 nm light. Both experimental results and theoretical calculations show that the remarkable catalytic performance of CuS@GDY is due to the unique hierarchical structure, narrow bandgap of GDY nanowalls, LSPR effect of CuS nanocages, fast interfacial electron transfer dynamics, and carbon vacancies on CuS@GDY. This plasmonic nanozyme exhibits rapid, efficient, broad‐spectrum antibacterial activity ( 〉 99.999%) against diverse pathogens (methicillin‐resistant Staphylococcus aureus , Staphylococcus aureus , and Escherichia coli ). This study not only sheds light on the mechanism of the nanozyme‐/photocatalysis coupling process, but also opens up a new avenue for engineering plasmonic NIR light driven nanozymes for rapid synergistic photothermal and photo‐enhanced nanozyme therapy.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2029061-5
    detail.hit.zdb_id: 2039420-2
    SSG: 11
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  • 9
    Online Resource
    Online Resource
    Wiley ; 2019
    In:  Journal of Cellular Physiology Vol. 234, No. 6 ( 2019-06), p. 8113-8121
    In: Journal of Cellular Physiology, Wiley, Vol. 234, No. 6 ( 2019-06), p. 8113-8121
    Abstract: LIN28A serves as a crucial marker of dairy goat male germline stem cells (GmGSCs). In our previous study, we demonstrated that LIN28A promotes proliferation, self‐renewal, and maintains the stemness of GmGSCs. Here, we found that LIN28A could activate the transcription of NANOG in a let‐7g independent manner. We cloned the 5′ upstream of two NANOG genes which were located on chromosome 15 ( NANOG‐ch15 ) and chromosome 5 ( NANOG‐ch5 ), respectively, and then examined their promoter activities and promoter methylation levels. Results showed that NANOG‐ch15 is a pseudogene whereas NANOG‐ch5 is active in Capra hircus . Bioinformatics analysis indicated that the 5′ upstream region of NANOG‐ch5 does not have typical CpG islands but contains several CG enrichment regions and several LIN28A binding sites. Deletion analysis suggested that NANOG‐ch5 promoter can be activated by LIN28A directly binding to the site ‐210 but not by the indirect effect from the inhibition of let‐7g , which is known to be downregulated by LIN28A . Mechanistically, LIN28A recruits and interacts with 5‐methylcytosine‐dioxygenase Ten‐Eleven translocation 1 (TET1) to NANOG‐ch5 gene promoter binding sites to orchestrate 5‐methylcytosine and 5‐hydroxymethylcytosine dynamics. These results revealed the role of LIN28A in NANOG transcriptional regulation via epigenetic DNA modifications to maintain the stemness of GmGSC.
    Type of Medium: Online Resource
    ISSN: 0021-9541 , 1097-4652
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 1478143-8
    SSG: 12
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  • 10
    In: Chemistry – An Asian Journal, Wiley, Vol. 14, No. 6 ( 2019-03-15), p. 765-769
    Abstract: A deep understanding on the luminescence property of aggregation‐induced emission (AIE) featured metal nanoclusters (NCs) is highly desired. This paper reports a systematic study on enhancing the luminescence of AIE‐featured Au NCs, which is achieved by Ag doping to engineer the size/structure and aggregation states of the Au I ‐thiolate motifs in the NC shell. Moreover, by prolonging the reaction time, the luminescence of the as‐synthesized AuAg NCs could be further tailored from orange to red, which is also due to the variation of the Au I ‐thiolate motifs of NCs. This study can facilitate a better understanding of this AIE‐featured luminescent probe and the design of other synthetic routes for this rising family of functional materials.
    Type of Medium: Online Resource
    ISSN: 1861-4728 , 1861-471X
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2233006-9
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