GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Wiley  (26)
  • Zhang, Liang  (26)
  • 1
    Online Resource
    Online Resource
    Enhanced Dual‐Directional Sulfur Redox via a Biotemplated Single‐Atomic Fe–N 2 Mediator Promises Durable Li–S Batteries
    Wiley ; 2022
    In:  Advanced Materials Vol. 34, No. 28 ( 2022-07)
    Details
    In: Advanced Materials, Wiley, Vol. 34, No. 28 ( 2022-07)
    Abstract: The lithium–sulfur (Li–S) battery is considered as an appealing candidate for next‐generation electrochemical energy storage systems because of high energy and low cost. Nonetheless, its development is plagued by the severe polysulfide shuttling and sluggish reaction kinetics. Although single‐atom catalysts (SACs) have emerged as a promising remedy to expedite sulfur redox chemistry, the mediocre single‐atom loading, inferior atomic utilization, and elusive catalytic pathway handicap their practical application. To tackle these concerns, in this work, unsaturated Fe single atoms with high loading capacity (≈6.32 wt%) are crafted on a 3D hierarchical C 3 N 4 architecture (3DFeSA‐CN) by means of biotemplated synthesis. By electrokinetic analysis and theoretical calculations, it is uncovered that the 3DFeSA‐CN harnesses robust electrocatalytic activity to boost dual‐directional sulfur redox. As a result, S@3DFeSA‐CN can maintain a durable cyclic performance with a negligible capacity decay rate of 0.031% per cycle over 2000 cycles at 1.0 C. More encouragingly, an assembled Li–S battery with a sulfur loading of 5.75 mg cm −2 can harvest a high areal capacity of 6.18 mAh cm −2 . This work offers a promising solution to optimize the carbonaceous support and coordination environment of SACs, thereby ultimately elevating dual‐directional sulfur redox in pragmatic Li–S batteries.
    Type of Medium: Online Resource
    ISSN: 0935-9648 , 1521-4095
    URL: Issue
    URL: Article
    DOI: 10.1002/adma.v34.28
    DOI: 10.1002/adma.202202256
    RVK:
    UA 1538
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 1474949-X
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Microbial production of small peptide: pathway engineering and synthetic biology
    Wiley ; 2021
    In:  Microbial Biotechnology Vol. 14, No. 6 ( 2021-11), p. 2257-2278
    Details
    In: Microbial Biotechnology, Wiley, Vol. 14, No. 6 ( 2021-11), p. 2257-2278
    Abstract: Small peptides are a group of natural products with low molecular weights and complex structures. The diverse structures of small peptides endow them with broad bioactivities and suggest their potential therapeutic use in the medical field. The remaining challenge is methods to address the main limitations, namely (i) the low amount of available small peptides from natural sources, and (ii) complex processes required for traditional chemical synthesis. Therefore, harnessing microbial cells as workhorse appears to be a promising approach to synthesize these bioactive peptides. As an emerging engineering technology, synthetic biology aims to create standard, well‐characterized and controllable synthetic systems for the biosynthesis of natural products. In this review, we describe the recent developments in the microbial production of small peptides. More importantly, synthetic biology approaches are considered for the production of small peptides, with an emphasis on chassis cells, the evolution of biosynthetic pathways, strain improvements and fermentation.
    Type of Medium: Online Resource
    ISSN: 1751-7915 , 1751-7915
    URL: Issue
    URL: Article
    DOI: 10.1111/mbt2.v14.6
    DOI: 10.1111/1751-7915.13743
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2406063-X
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    Enzymatic characterization and crystal structure analysis of the D-alanine-D-alanine ligase from Helicobacter pylori
    Wiley ; 2008
    In:  Proteins: Structure, Function, and Bioinformatics Vol. 72, No. 4 ( 2008-03-04), p. 1148-1160
    Details
    In: Proteins: Structure, Function, and Bioinformatics, Wiley, Vol. 72, No. 4 ( 2008-03-04), p. 1148-1160
    Type of Medium: Online Resource
    ISSN: 0887-3585
    URL: Article
    DOI: 10.1002/prot.22009
    RVK:
    WA 15000
    Language: English
    Publisher: Wiley
    Publication Date: 2008
    detail.hit.zdb_id: 1475032-6
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    Effects of Al and Y Addition on Microstructures and Mechanical Properties of As‐Cast Mg–14Li Based Alloy
    Wiley ; 2019
    In:  Advanced Engineering Materials Vol. 21, No. 2 ( 2019-02)
    Details
    In: Advanced Engineering Materials, Wiley, Vol. 21, No. 2 ( 2019-02)
    Abstract: In this study, effects of Al and Y contents on microstructural evolutions and mechanical properties of the as‐cast Mg–14Li alloy are investigated. The results show that Mg–14Li– x Al ( x  = 1, 2, 3 wt%) alloys are characterized by predominantly single β –Li and MgLiAl 2 phases. Slight refinement of β –Li grains is obtained with the increasing of Al content. The increased Al addition greatly improves the hardness, ultimate tensile strength, and yield strength of the Mg‐14 base alloy, accompanied by a significant reduction in ductility. Meanwhile, with addition of minor Y (0.5 wt%) addition leads to the introduction of homogeneous distribution of Al 2 Y particles in the Mg–14Li–3Al alloy, which plays a positive role in the strength enhancement. However, the uneven distribution of apparently coarsed Al 2 Y particles contributes to a significant reduction in tensile strength as the Y content is increased up to 1 wt%.
    Type of Medium: Online Resource
    ISSN: 1438-1656 , 1527-2648
    URL: Issue
    URL: Article
    DOI: 10.1002/adem.v21.2
    DOI: 10.1002/adem.201800755
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2016980-2
    detail.hit.zdb_id: 1496512-4
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    Facile Zn 2+ Desolvation Enabled by Local Coordination Engineering for Long‐Cycling Aqueous Zinc‐Ion Batteries
    Wiley ; 2023
    In:  Advanced Functional Materials Vol. 33, No. 32 ( 2023-08)
    Details
    In: Advanced Functional Materials, Wiley, Vol. 33, No. 32 ( 2023-08)
    Abstract: Aqueous zinc‐ion batteries (AZIBs) have aroused continuously increasing attention for grid‐scale energy storage applications. However, the progress of AZIBs is largely plagued by their sluggish reaction kinetics and poor structural reversibility, which are closely related to the desolvation process of hydrated Zn 2+ . Herein, a strategy of local coordination engineering is proposed to modulate both surface and bulk structure of a conventional α‐MnO 2 cathode to overcome these issues. Theoretical simulations and experimental characterizations reveal that the surface F coordinations effectively adjust the absorption strength toward H 2 O and Zn, which facilitates the desolvation of hydrated Zn 2+ and thus improves the interfacial ion diffusion rate and reaction kinetics. Meanwhile, the structural integrity is largely enhanced with suppressed irreversible phase evolution over cycling benefiting from the presence of robust MnF bonds in the bulk lattice. As a consequence, the achieved cathode exhibits almost no capacity degradation after 400 cycles at a low current density of 0.5 A g ‐1 and long‐term durability over 3500 cycles at a high current density of 5 A g ‐1 . The proposed modulation strategy provides new opportunities for designing long‐cycling and high‐energy cathodes for AZIBs and beyond.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    URL: Article
    DOI: 10.1002/adfm.v33.32
    DOI: 10.1002/adfm.202301648
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2029061-5
    detail.hit.zdb_id: 2039420-2
    SSG: 11
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 6
    Online Resource
    Online Resource
    MicroRNA‐21 and microRNA‐214 play important role in reproduction regulation during porcine estrous
    Wiley ; 2018
    In:  Animal Science Journal Vol. 89, No. 10 ( 2018-10), p. 1398-1405
    Details
    In: Animal Science Journal, Wiley, Vol. 89, No. 10 ( 2018-10), p. 1398-1405
    Abstract: Normal estrous cycle is crucial for porcine reproduction, and microRNA is closely related to regulation of estrous cycle in porcine ovaries. In this study, we found that the expression of miR‐214 in porcine ovaries was higher than in many other tissues, and miR‐21 expression in ovaries was significantly higher than in the uterus and pituitary. Meanwhile, miR‐21 was upregulated and miR‐214 was downregulated in the ovaries of high litter size (YH) pigs compared with low litter size (YL) pigs. Moreover, the lowest expression of miR‐21 and miR‐214 occurred on Days 14 and 7 of the estrous cycle and was expressed at greater levels in the granulosa cells of subordinate follicles than in dominant follicles on Day 3 of the estrous cycle. Bioinformatics analysis showed that miR‐21 and miR‐214 might target several genes that involved in the mTOR signaling, apoptosis, and steroid biosynthesis pathways, and they play important roles in maintaining the porcine estrous cycle. The qPCR and western blot analysis indicated that miR‐214 inhibited the expression of SCARB1 gene in the transcriptional level, but not affected the SCARB1 gene's protein level. Our research findings indicated that miR‐21 and miR‐214 played important roles in reproduction regulation during porcine estrous.
    Type of Medium: Online Resource
    ISSN: 1344-3941 , 1740-0929
    URL: Issue
    URL: Article
    DOI: 10.1111/asj.2018.89.issue-10
    DOI: 10.1111/asj.13087
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2095161-9
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 7
    Online Resource
    Online Resource
    Demystifying Activity Origin of M–N–C Single‐Atomic Mediators Toward Expedited Rate‐Determining Step in Li–S Electrochemistry
    Wiley ; 2022
    In:  Small Science Vol. 2, No. 10 ( 2022-10)
    Details
    In: Small Science, Wiley, Vol. 2, No. 10 ( 2022-10)
    Abstract: Sluggish sulfur reduction reaction (SRR) kinetics remains a formidable challenge in Li–S electrochemistry. In this sense, the rational design of single‐atom species has become a burgeoning practice to expedite sulfur redox, where the underlying catalytic mechanism otherwise remains elusive. Herein, a class of metal single‐atom modified porous carbon nanofiber films (MSA PCNFs, M = Fe, Co, or Ni), fabricated via a generic synthetic strategy, as mediators to boost SRR kinetics is reported. Throughout electrokinetic measurement and operando instrumental probing, NiSA PCNF is evidenced to harness the catalytic superiority toward the rate‐determining step (i.e., liquid–solid conversion) of the SRR process. Density functional theory (DFT) simulations further reveal that the catalytic features of M–N–C moieties in catalyzing the Li 2 S precipitation rely heavily upon the coordination environments of adjacent carbon atoms and d ‐orbital configurations of metal centers. In response, the thus‐derived S/NiSA PCNF cathode realizes an encouraging areal capacity of 14.12 mAh cm −2 under elevated sulfur loading (10.2 mg cm −2 ) and lean electrolyte usage (E/S ratio ≈ 5.5 μL mg −1 ). This work offers insight into the identification of exact catalytic moieties for different transition metal M–N–C single‐atom SRR mediators, showcasing a meaningful guidance and potential impact on Li–S catalysis.
    Type of Medium: Online Resource
    ISSN: 2688-4046 , 2688-4046
    URL: Issue
    URL: Article
    DOI: 10.1002/smsc.v2.10
    DOI: 10.1002/smsc.202200059
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 3042766-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 8
    Online Resource
    Online Resource
    Anionic Redox Activities Boosted by Aluminum Doping in Layered Sodium‐Ion Battery Electrode
    Wiley ; 2022
    In:  Small Methods Vol. 6, No. 3 ( 2022-03)
    Details
    In: Small Methods, Wiley, Vol. 6, No. 3 ( 2022-03)
    Abstract: Sodium‐ion batteries (SIBs) have attracted widespread attention for large‐scale energy storage, but one major drawback, i.e., the limited capacity of cathode materials, impedes their practical applications. Oxygen redox reactions in layered oxide cathodes are proven to contribute additionally high specific capacity, while such cathodes often suffer from irreversible structural transitions, causing serious capacity fading and voltage decay upon cycling, and the formation process of the oxidized oxygen species remains elusive. Herein, a series of Al‐doped P2‐type Na 0.6 Ni 0.3 Mn 0.7 O 2 cathode materials for SIBs are reported and the corresponding charge compensation mechanisms are investigated qualitatively and quantitatively. The combined analyses reveal that Al doping boosts the reversible oxygen redox reactions through the reductive coupling reactions between orphaned O 2p states in NaOAl local configurations and Ni 4+ ions, as directly evidenced by X‐ray absorption fine structure results. Additionally, Al doping also induces an increased interlayer spacing and inhibits the unfavorable P2 to O2 phase transition upon desodiation/sodiation, which is common in P2‐type Mn‐based cathode materials, leading to the great improvement in capacity retention and rate capability. This work provides deeper insights into the development of structurally stable and high‐capacity layered cathode materials for SIBs with anion–cation synergetic contributions.
    Type of Medium: Online Resource
    ISSN: 2366-9608 , 2366-9608
    URL: Issue
    URL: Article
    DOI: 10.1002/smtd.v6.3
    DOI: 10.1002/smtd.202101524
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2884448-8
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 9
    Online Resource
    Online Resource
    Low‐field nuclear magnetic resonance analysis of the effects of heating temperature and time on braised beef
    Wiley ; 2017
    In:  International Journal of Food Science & Technology Vol. 52, No. 5 ( 2017-05), p. 1193-1202
    Details
    In: International Journal of Food Science & Technology, Wiley, Vol. 52, No. 5 ( 2017-05), p. 1193-1202
    Abstract: We investigated the characteristics of water mobility and distribution in Chinese braised beef after treatment at different temperatures for different times using low‐field nuclear magnetic resonance ( LF ‐ NMR ). The beef was heated at 45, 55, 65, 75, 85 or 95 °C for 30, 60, 90 and 120 min. Results showed that T 2 changed significantly with heating temperature. T 21 and A 21 decreased significantly with increasing temperature below 65 °C, with a steady phase from 75 to 95 °C, which agreed with cooking loss. Inversely, T 22 had no changes below 65 °C and changed apparently from 75 to 95 °C. The change in T 21 below 65 °C may be related to proteins denaturation and shrinkage and, above 65 °C, T 22 possibly induced by the dissolution of connective tissue. The characteristics of braised beef at 65 °C were different from those at other temperatures in T 2 distributions. The findings could provide a theoretical basis for the processing of Chinese braised beef.
    Type of Medium: Online Resource
    ISSN: 0950-5423 , 1365-2621
    URL: Issue
    URL: Article
    DOI: 10.1111/ijfs.2017.52.issue-5
    DOI: 10.1111/ijfs.13384
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 2016518-3
    detail.hit.zdb_id: 2401430-8
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 10
    Online Resource
    Online Resource
    Residues Asp164 and Glu165 at the substrate entryway function potently in substrate orientation of alanine racemase from E. coli : Enzymatic characterization with crystal structure analysis
    Wiley ; 2008
    In:  Protein Science Vol. 17, No. 6 ( 2008-06), p. 1066-1076
    Details
    In: Protein Science, Wiley, Vol. 17, No. 6 ( 2008-06), p. 1066-1076
    Abstract: Alanine racemase (Alr) is an important enzyme that catalyzes the interconversion of L‐alanine and D‐alanine, an essential building block in the peptidoglycan biosynthesis. For the small size of the Alr active site, its conserved substrate entryway has been proposed as a potential choice for drug design. In this work, we fully analyzed the crystal structures of the native, the D‐cycloserine‐bound, and four mutants (P219A, E221A, E221K, and E221P) of biosynthetic Alr from Escherichia coli (EcAlr) and studied the potential roles in substrate orientation for the key residues involved in the substrate entryway in conjunction with the enzymatic assays. Structurally, it was discovered that EcAlr is similar to the Pseudomonas aeruginosa catabolic Alr in both overall and active site geometries. Mutation of the conserved negatively charged residue aspartate 164 or glutamate 165 at the substrate entryway could obviously reduce the binding affinity of enzyme against the substrate and decrease the turnover numbers in both D‐ to L‐Ala and L‐ to D‐Ala directions, especially when mutated to lysine with the opposite charge. However, mutation of Pro219 or Glu221 had only negligible or a small influence on the enzymatic activity. Together with the enzymatic and structural investigation results, we thus proposed that the negatively charged residues Asp164 and Glu165 around the substrate entryway play an important role in substrate orientation with cooperation of the positively charged Arg280 and Arg300 on the opposite monomer. Our findings are expected to provide some useful structural information for inhibitor design targeting the substrate entryway of Alr.
    Type of Medium: Online Resource
    ISSN: 0961-8368 , 1469-896X
    URL: Article
    DOI: 10.1110/ps.083495908
    RVK:
    WA 15000
    Language: English
    Publisher: Wiley
    Publication Date: 2008
    detail.hit.zdb_id: 2000025-X
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...