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  • 1
    Online Resource
    Online Resource
    Herbivore grazing mitigates the negative effects of nitrogen deposition on soil organic carbon in low‐diversity grassland
    Wiley ; 2022
    In:  Journal of Applied Ecology Vol. 59, No. 2 ( 2022-02), p. 483-491
    Details
    In: Journal of Applied Ecology, Wiley, Vol. 59, No. 2 ( 2022-02), p. 483-491
    Abstract: Changes in soil carbon (C) sequestration in grassland ecosystems have important impacts on the global C cycle. As such, it is important that researchers better understand the underlying mechanisms affecting soil C. Increasing evidence has shown that atmospheric nitrogen (N) deposition can cause dramatic changes in grassland soil C. It remains unclear whether herbivore grazing, a primary means to manage and utilize grassland resources, can regulate the effects of N deposition on soil C, and whether these effects are dependent on plant community diversity. Here, we examined the joint effects of herbivore grazing and N‐addition on soil organic C (SOC) stocks in two types of communities with low and high plant diversity respectively. Our results showed that the effects of N‐addition and its combination with herbivore grazing on grassland SOC were inconsistent in the two types of communities. In the low‐diversity community, N‐addition greatly decreased SOC stocks, while grazing significantly increased it. Additionally, the grazing‐induced increase in soil C stocks in the presence of N‐addition was so great that it completely counteracted the significant decline in SOC induced by N‐addition. However, in the high‐diversity community, we observed no effects of N‐addition on SOC and grazing increased SOC only in the absence of N‐addition and had no significant effect in the presence of N‐addition. Synthesis and applications . Our study suggests that increased N deposition can trigger a remarkable reduction in soil C sequestration in grasslands with low plant diversity, but that herbivore grazing can offset this decline, which may help to mitigate greenhouse gas emissions caused by atmospheric N deposition. As a result, we suggest that moderate herbivore grazing should be considered as an effective grassland management measure for maintaining and improving grassland soil C sequestration as the increasing global changes such as elevated atmospheric carbon dioxide, N deposition and biodiversity losses threat.
    Type of Medium: Online Resource
    ISSN: 0021-8901 , 1365-2664
    URL: Issue
    URL: Article
    DOI: 10.1111/jpe.v59.2
    DOI: 10.1111/1365-2664.14066
    Language: English
    Publisher: Wiley
    Publication Date: 2022
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    SSG: 12
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  • 2
    Online Resource
    Online Resource
    Direct detection of isoprene photooxidation products by using synchrotron radiation photoionization mass spectrometry
    Wiley ; 2012
    In:  Rapid Communications in Mass Spectrometry Vol. 26, No. 2 ( 2012-01-30), p. 189-194
    Details
    In: Rapid Communications in Mass Spectrometry, Wiley, Vol. 26, No. 2 ( 2012-01-30), p. 189-194
    Abstract: We report the combination of a vacuum ultraviolet photoionization mass spectrometer, operating on the basis of synchrotron radiation, with an environmental reaction smog chamber for the first time. The gas‐ and pseudo‐particle‐phase products of OH‐initiated isoprene photooxidation reactions were measured on‐line and off‐line, respectively, by mass spectrometry. It was observed that aldehydes, methacrolein, methyl vinyl ketone, methelglyoxal, formic acid, and similar compounds are the predominant gas‐phase photooxidation products, whereas some multifunctional carbonyls and acids mainly exist in the particle phase. This finding is reasonably consistent with results of studies conducted in other laboratories using different methods. The results indicate that synchrotron radiation photoionization mass spectrometry coupled with a smog chamber is a potentially powerful tool for the study of the mechanism of atmospheric oxidations and the formation of secondary organic aerosols. Copyright © 2011 John Wiley & Sons, Ltd.
    Type of Medium: Online Resource
    ISSN: 0951-4198 , 1097-0231
    URL: Issue
    URL: Article
    DOI: 10.1002/rcm.v26.2
    DOI: 10.1002/rcm.5295
    Language: English
    Publisher: Wiley
    Publication Date: 2012
    detail.hit.zdb_id: 2002158-6
    detail.hit.zdb_id: 58731-X
    SSG: 11
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  • 3
    Online Resource
    Online Resource
    Frenkel Defect‐modulated Anti‐thermal Quenching Luminescence in Lanthanide‐doped Sc 2 (WO 4 ) 3
    Wiley ; 2023
    In:  Angewandte Chemie Vol. 135, No. 27 ( 2023-07-03)
    Details
    In: Angewandte Chemie, Wiley, Vol. 135, No. 27 ( 2023-07-03)
    Abstract: Although large amount of effort has been invested in combating thermal quenching that severely degrades the performance of luminescent materials particularly at high temperatures, not much affirmative progress has been realized. Herein, we demonstrate that the Frenkel defect formed via controlled annealing of Sc 2 (WO 4 ) 3 :Ln (Ln=Yb, Er, Eu, Tb, Sm), can work as energy reservoir and back‐transfer the stored excitation energy to Ln 3+ upon heating. Therefore, except routine anti‐thermal quenching, thermally enhanced 415‐fold downshifting and 405‐fold upconversion luminescence are even obtained in Sc 2 (WO 4 ) 3 :Yb/Er, which has set a record of both the Yb 3+ ‐Er 3+ energy transfer efficiency ( 〉 85 %) and the working temperature at 500 and 1073 K, respectively. Moreover, this design strategy is extendable to other hosts possessing Frenkel defect, and modulation of which directly determines whether enhanced or decreased luminescence can be obtained. This discovery has paved new avenues to reliable generation of high‐temperature luminescence.
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v135.27
    DOI: 10.1002/ange.202303482
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2023
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    detail.hit.zdb_id: 506609-8
    detail.hit.zdb_id: 514305-6
    detail.hit.zdb_id: 505872-7
    detail.hit.zdb_id: 1479266-7
    detail.hit.zdb_id: 505867-3
    detail.hit.zdb_id: 506259-7
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  • 4
    Online Resource
    Online Resource
    Polyphenol‐Sensitized Atomic Layer Deposition for Membrane Interface Hydrophilization
    Wiley ; 2020
    In:  Advanced Functional Materials Vol. 30, No. 15 ( 2020-04)
    Details
    In: Advanced Functional Materials, Wiley, Vol. 30, No. 15 ( 2020-04)
    Abstract: Improvements in energy–water systems will necessitate fabrication of high‐performance separation membranes. To this end, interface engineering is a powerful tool for tailoring properties, and atomic layer deposition (ALD) has recently emerged as a promising and versatile approach. However, most non‐polar polymeric membranes are not amenable to ALD processing due to the absence of nucleation sites. Here, a sensitization strategy for ALD‐coating is presented, illustrated by membrane interface hydrophilization. Facile dip‐coating with polyphenols effectively sensitizes hydrophobic polymer membranes to TiO 2 ALD coating. Tannic acid‐sensitized ALD‐coated membranes exhibit outstanding underwater crude oil repulsion and rigorous mechanical stability through bending and rinsing tests. As a result, these membranes demonstrate outstanding crude oil‐in‐water separation and reusability compared to untreated membranes or those treated with ALD without polyphenol pretreatment. A possible polyphenol‐sensitized ALD mechanism is proposed involving initial island nucleation followed by film intergrowth. This polyphenol sensitization strategy enriches the functionalization toolbox in material science, interface engineering, and environmental science.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    URL: Article
    DOI: 10.1002/adfm.v30.15
    DOI: 10.1002/adfm.201910062
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2029061-5
    detail.hit.zdb_id: 2039420-2
    SSG: 11
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  • 5
    Online Resource
    Online Resource
    FBXW7 induces apoptosis in glioblastoma cells by regulating HDAC7
    Wiley ; 2021
    In:  Cell Biology International Vol. 45, No. 10 ( 2021-10), p. 2150-2158
    Details
    In: Cell Biology International, Wiley, Vol. 45, No. 10 ( 2021-10), p. 2150-2158
    Abstract: Glioblastoma is an aggressive type of brain cancer with an extremely poor prognosis. Additionally, the F‐box WD repeat‐containing protein 7 (FBXW7) is a component of the ubiquitin‐proteasome system that has been widely implicated in human cancers. In this study, we investigated the role and mechanism of FBXW7 in glioblastoma. FBXW7 expression was analyzed in normal and glioblastoma tissue samples using The Cancer Genome Atlas Glioblastoma Multiforme (TCGA‐GBM) database. Then, quantitative reverse transcription‐polymerase chain reaction (RT‐PCR) was used to examine mRNA expression, whereas, western blot analysis was conducted to determine protein levels of the samples. Furthermore, cell apoptosis was assessed using the Annexin V staining method, followed by flow cytometry analysis. Immunoprecipitation (IP) assay was conducted as well to test protein–protein interactions. Lastly, protein expression in tissues was examined by conducting immunohistochemistry (IHC). Results showed that the glioblastoma tissue samples displayed an FBXW7 downregulation compared with normal tissues. In vitro, the overexpression of FBXW7 in glioblastoma cells induced apoptosis, whereas, its knockdown displayed the opposite effect. Mechanistically, FBXW7 interacted with HDAC7 to promote HDAC7 ubiquitination, however, the overexpression of HDAC7 in glioblastoma cells blocked FBXW7‐induced apoptosis. Finally, FBXW7 and HDAC7 displayed an inverse correlation in glioblastoma tissues in vivo. Therefore, our data demonstrated an important function of FBXW7 in promoting glioblastoma apoptosis by interacting with HDAC7 and promoting HDAC7 ubiquitination.
    Type of Medium: Online Resource
    ISSN: 1065-6995 , 1095-8355
    URL: Issue
    URL: Article
    DOI: 10.1002/cbin.v45.10
    DOI: 10.1002/cbin.11668
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 1462519-2
    SSG: 12
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  • 6
    Online Resource
    Online Resource
    Langmuir–Blodgett Nanowire Devices for In Situ Probing of Zinc‐Ion Batteries
    Wiley ; 2019
    In:  Small Vol. 15, No. 30 ( 2019-07)
    Details
    In: Small, Wiley, Vol. 15, No. 30 ( 2019-07)
    Abstract: In situ monitoring the evolution of electrode materials in micro/nano scale is crucial to understand the intrinsic mechanism of rechargeable batteries. Here a novel on‐chip Langmuir–Blodgett nanowire (LBNW) microdevice is designed based on aligned and assembled MnO 2 nanowire quasimonolayer films for directly probing Zn‐ion batteries (ZIBs) in real‐time. With an interdigital device configuration, a splendid Ohmic contact between MnO 2 LBNWs and pyrolytic carbon current collector is demonstrated here, enabling a small polarization voltage. In addition, this work reveals, for the first time, that the conductance of MnO 2 LBNWs monotonically increases/decreases when the ZIBs are charged/discharged. Multistep phase transition is mainly responsible for the mechanism of the ZIBs, as evidenced by combined high‐resolution transmission electron microscopy and in situ Raman spectroscopy. This work provides a new and adaptable platform for microchip‐based in situ simultaneous electrochemical and physical detection of batteries, which would promote the fundamental and practical research of nanowire electrode materials in energy storage applications.
    Type of Medium: Online Resource
    ISSN: 1613-6810 , 1613-6829
    URL: Issue
    URL: Article
    DOI: 10.1002/smll.v15.30
    DOI: 10.1002/smll.201902141
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2168935-0
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  • 7
    Online Resource
    Online Resource
    Superior Hydrogen Evolution Reaction Performance in 2H‐MoS 2 to that of 1T Phase
    Wiley ; 2019
    In:  Small Vol. 15, No. 31 ( 2019-08)
    Details
    In: Small, Wiley, Vol. 15, No. 31 ( 2019-08)
    Abstract: In the hydrogen evolution reaction (HER), energy‐level matching is a prerequisite for excellent electrocatalytic activity. Conventional strategies such as chemical doping and the incorporation of defects underscore the complicated process of controlling the doping species and the defect concentration, which obstructs the understanding of the function of band structure in HER catalysis. Accordingly, 2H‐MoS 2 and 1T‐MoS 2 are used to create electrocatalytic nanodevices to address the function of band structure in HER catalysis. Interestingly, it is found that the 2H‐MoS 2 with modulated Fermi level under the application of a vertical electric field exhibits excellent electrocatalytic activity (as evidenced by an overpotential of 74 mV at 10 mA cm −2 and a Tafel slope of 99 mV per decade), which is superior to 1T‐MoS 2 . This unexpected excellent HER performance is ascribed to the fact that electrons are injected into the conduction band under the condition of back‐gate voltage, which leads to the increased Fermi level of 2H‐MoS 2 and a shorter Debye screen length. Hence, the required energy to drive electrons from the electrocatalyst surface to reactant will decrease, which activates the 2H‐MoS 2 thermodynamically.
    Type of Medium: Online Resource
    ISSN: 1613-6810 , 1613-6829
    URL: Issue
    URL: Article
    DOI: 10.1002/smll.v15.31
    DOI: 10.1002/smll.201900964
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2168935-0
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  • 8
    Online Resource
    Online Resource
    A Powder Self‐Healable Hydrogel Electrolyte for Flexible Hybrid Supercapacitors with High Energy Density and Sustainability
    Wiley ; 2021
    In:  Small Vol. 17, No. 10 ( 2021-03)
    Details
    In: Small, Wiley, Vol. 17, No. 10 ( 2021-03)
    Abstract: Ionic conductive hydrogel electrolyte is considered to be an ideal electrolyte candidate for flexible supercapacitor due to its flexibility and high conductivity. However, due to the lack of effective recycling methods, a large number of ineffective flexible hydrogel supercapacitors caused by some irreversible damages and dryness of hydrogel electrolyte are abandoned, which would induce heavy economic and environmental protection problems. Herein,a smart ionic conductive hydrogel (SPMA‐Zn: ZnSO 4 /sodium alginate/polymethylacrylic acid) is developed for flexible hybrid supercapacitor (SPMA‐ZHS). The SPMA‐Zn exhibits an excellent self‐healing ability and can recover its electrochemical performance after multiple mechanical damages. More importantly, it possesses an outstanding powder self‐healable property, which could easily regenerate the hydrogel electrolyte after powdering, and maintain stable electrochemical performance of SPMA‐ZHS. Besides, the SPMA‐ZHS displays excellent electrochemical performance with a wide and stable working voltage range of 0–2.2 V, high energy density of 164.13 Wh kg −1 at the power density of 1283.44 Wh kg −1 and good stability with a capacity retention of 95.3% after 5000 charge/discharge cycles at 10 A g −1 . The strategy in this work would provide a new insight in exploring flexible hydrogel electrolyte‐based supercapacitor with good sustainability and high energy density for flexible wearable electronic devices.
    Type of Medium: Online Resource
    ISSN: 1613-6810 , 1613-6829
    URL: Issue
    URL: Article
    DOI: 10.1002/smll.v17.10
    DOI: 10.1002/smll.202006807
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2168935-0
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  • 9
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    Online Resource
    Thermadapt Shape Memory Polymers with Predictable and Arbitrary Shape Shifting
    Wiley ; 2019
    In:  Macromolecular Chemistry and Physics Vol. 220, No. 2 ( 2019-01)
    Details
    In: Macromolecular Chemistry and Physics, Wiley, Vol. 220, No. 2 ( 2019-01)
    Abstract: The development of shape memory polymers (SMPs) with a better linear relationship between the shape retention ratio ( R ret ) and the corresponding stress relaxation ( R σ ) can address scientific challenges, such that the arbitrary shape shifting can be realized and a desired and accurate strain can be obtained during the procedure of stress relaxation. This method is predictable, accurate, time‐saving, and can prevent the deterioration of materials. However, almost no attention is paid to the predictable and arbitrary shape‐shifting phenomenon. Here, a new phenomenon that the materials exhibit a relatively better linear relationship and the major factor behind the phenomenon—there is a better linear relationship with the decrease in the molecular weight between the cross‐linking points ( M c )—are found. Such a one shape memory network with combined catalyst‐free, arbitrary shape shifting, and reprocessability without sacrificing the outstanding shape memory performance, is expected to have a significant and positive impact on the medical device industry, and provides a new strategy for the design of thermadapt SMPs.
    Type of Medium: Online Resource
    ISSN: 1022-1352 , 1521-3935
    URL: Issue
    URL: Article
    DOI: 10.1002/macp.v220.2
    DOI: 10.1002/macp.201800390
    RVK:
    VA 5810
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 1475026-0
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  • 10
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    Field Effect Enhanced Hydrogen Evolution Reaction of MoS 2 Nanosheets
    Wiley ; 2017
    In:  Advanced Materials Vol. 29, No. 7 ( 2017-02)
    Details
    In: Advanced Materials, Wiley, Vol. 29, No. 7 ( 2017-02)
    Type of Medium: Online Resource
    ISSN: 0935-9648 , 1521-4095
    URL: Issue
    URL: Article
    DOI: 10.1002/adma.v29.7
    DOI: 10.1002/adma.201604464
    RVK:
    UA 1538
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 1474949-X
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