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  • Wiley  (17)
  • Du, Xiaoyu  (17)
  • 1
    Online Resource
    Online Resource
    Multi‐Color Fluorescent Carbon Dots: Graphitized sp 2 Conjugated Domains and Surface State Energy Level Co‐Modulate Band Gap Rather Than Size Effects
    Wiley ; 2020
    In:  Chemistry – A European Journal Vol. 26, No. 36 ( 2020-06-26), p. 8129-8136
    Details
    In: Chemistry – A European Journal, Wiley, Vol. 26, No. 36 ( 2020-06-26), p. 8129-8136
    Abstract: Four types of carbon dots (CDs) with various color (blue, green, yellow, and red) emissions have been synthesized under solvent‐free conditions from citric acid and different nitrogen sources (DMF, urea, ethanamide, and formamide). By detailed characterization and comparison, it is confirmed that the graphitized sp 2 conjugated domain and surface functional groups such as C−O and C=N play synergetic roles in adjusting the fluorescence properties. Notably, the size effect is not the dominant mechanism to achieve multi‐color fluorescence emissions in this work. The structural configuration of the carbon dots further influences the energy band structure, as demonstrated in simplified energy level diagrams. An absorption peak at approximately 560 nm appears in the visible light region for red‐emitting CDs, assigned to an n→π* transition of the aromatic structure, thus introducing a new surface state energy level, resulting in a reduction in the energy of electron transition and the expansion into the visible region of the UV/Vis spectrum. Taking advantage of the diverse absorption and emission properties, different CDs/TiO 2 binary composites are obtained for photocatalytic degradation of organic dyes, and it is found that the absorption range in terms of visible light and the band gap of the carbon dots make a difference to the photocatalytic performance of the composites.
    Type of Medium: Online Resource
    ISSN: 0947-6539 , 1521-3765
    URL: Issue
    URL: Article
    DOI: 10.1002/chem.v26.36
    DOI: 10.1002/chem.202000763
    RVK:
    VA 1120 ; VA 3507
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 1478547-X
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  • 2
    Online Resource
    Online Resource
    A 3D‐Printed Assemblable Bespoke Scaffold as a Versatile Microcryogel Carrier for Site‐Specific Regenerative Medicine
    Wiley ; 2023
    In:  Advanced Materials
    Details
    In: Advanced Materials, Wiley
    Abstract: Advances in additive manufacturing have led to diverse patient‐specific implant designs utilizing computed tomography, but this requires intensive work and financial implications. Here, Digital Light Processing is used to fabricate a hive‐structured assemblable bespoke scaffold (HIVE). HIVE can be manually assembled in any shape/size with ease, so a surgeon can create a scaffold that will best fit a defect before implantation. Simultaneously, it can have site‐specific treatments by working as a carrier filled with microcryogels (MC) incorporating different biological factors in different pockets of HIVE. After characterization, possible site‐specific applications are investigated by utilizing HIVE as a versatile carrier with incorporated treatments such as growth factors (GF), bioceramic, or cells. HIVE as a GF‐carrier shows a controlled release of bone morphogenetic protein/vascular endothelial growth factor (BMP/VEGF) and induced osteogenesis/angiogenesis from human mesenchymal stem cells (hMSC)/human umbilical vein endothelial cells (HUVECs). Furthermore, as a bioceramic‐carrier, HIVE demonstrates enhanced mineralization and osteogenesis, and as a HUVEC carrier, it upregulates both osteogenic and angiogenic gene expression of hMSCs. HIVE with different combinations of MCs yields a distinct local effect and successful cell migration is confirmed within assembled HIVEs. Finally, an in vivo rat subcutaneous implantation demonstrates site‐specific osteogenesis and angiogenesis.
    Type of Medium: Online Resource
    ISSN: 0935-9648 , 1521-4095
    URL: Article
    DOI: 10.1002/adma.202302008
    RVK:
    UA 1538
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 1474949-X
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  • 3
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    Online Resource
    Overexpression of ZAC impairs glucose-stimulated insulin translation and secretion in clonal pancreatic beta-cells : ZAC and Insulin Secretion
    Wiley ; 2012
    In:  Diabetes/Metabolism Research and Reviews Vol. 28, No. 8 ( 2012-11), p. 645-653
    Details
    In: Diabetes/Metabolism Research and Reviews, Wiley, Vol. 28, No. 8 ( 2012-11), p. 645-653
    Type of Medium: Online Resource
    ISSN: 1520-7552
    URL: Issue
    URL: Article
    DOI: 10.1002/dmrr.v28.8
    DOI: 10.1002/dmrr.2325
    Language: English
    Publisher: Wiley
    Publication Date: 2012
    detail.hit.zdb_id: 2001565-3
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  • 4
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    A Nanopore‐Based Saccharide Sensor
    Wiley ; 2022
    In:  Angewandte Chemie International Edition Vol. 61, No. 33 ( 2022-08-15)
    Details
    In: Angewandte Chemie International Edition, Wiley, Vol. 61, No. 33 ( 2022-08-15)
    Abstract: Saccharides play critical roles in many forms of cellular activities. Saccharide structures are however complicated and similar, setting a technical hurdle for direct identification. Nanopores, which are emerging single molecule tools sensitive to minor structural differences between analytes, can be engineered to identity saccharides. A hetero‐octameric Mycobacterium smegmatis porin A nanopore containing a phenylboronic acid was prepared, and was able to clearly identify nine monosaccharide types, including D‐fructose, D‐galactose, D‐mannose, D‐glucose, L‐sorbose, D‐ribose, D‐xylose, L‐rhamnose and N‐acetyl‐D‐galactosamine. Minor structural differences between saccharide epimers can also be distinguished. To assist automatic event classification, a machine learning algorithm was developed, with which a general accuracy score of 0.96 was achieved. This sensing strategy is generally suitable for other saccharide types and may bring new insights to nanopore saccharide sequencing.
    Type of Medium: Online Resource
    ISSN: 1433-7851 , 1521-3773
    URL: Issue
    URL: Article
    DOI: 10.1002/anie.v61.33
    DOI: 10.1002/anie.202203769
    RVK:
    VA 2100
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2011836-3
    detail.hit.zdb_id: 123227-7
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  • 5
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    Online Resource
    Direct Laser Etching Free‐Standing MXene‐MoS 2 Film for Highly Flexible Micro‐Supercapacitor
    Wiley ; 2019
    In:  Advanced Materials Interfaces Vol. 6, No. 22 ( 2019-11)
    Details
    In: Advanced Materials Interfaces, Wiley, Vol. 6, No. 22 ( 2019-11)
    Abstract: Micro‐supercapacitors (MSCs) with excellent flexibility and high electrochemical performance are essential for portable and miniaturized electronics. In this paper, a laser etching technology with advantages of simple process, low cost, and high machining accuracy is used to directly etch the free‐standing MXene‐molybdenum disulfide (MoS 2 ) film for MSC. As adding MoS 2 in MXene effectively improves the electrochemical performance, such as a higher specific capacitance (about 60% higher than pure MXene). Eventually, the maximum specific capacitance of this MSC (based on the total volume of positive and negative electrodes) is 173.6 F cm −3 (1 mV s −1 ), and the maximum energy density and maximum power density are 15.5 mWh cm −3 and 0.97 W cm −3 , respectively. In addition, the MSC also shows the excellent cycle stability and flexibility, e.g., after 6000 charge–discharge cycles and bending up to 150°, the capacitances of the MSC still retain about 98% and 89% of its initial capacitance, respectively. The laser‐etched MSC based on MXene‐MoS 2 offers a new idea for future high‐performance micro energy storage devices.
    Type of Medium: Online Resource
    ISSN: 2196-7350 , 2196-7350
    URL: Issue
    URL: Article
    DOI: 10.1002/admi.v6.22
    DOI: 10.1002/admi.201901160
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2750376-8
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  • 6
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    Online Resource
    Sonochemistry‐Assembled Stimuli‐Responsive Polymer Microcapsules for Drug Delivery
    Wiley ; 2018
    In:  Advanced Healthcare Materials Vol. 7, No. 11 ( 2018-06)
    Details
    In: Advanced Healthcare Materials, Wiley, Vol. 7, No. 11 ( 2018-06)
    Abstract: Stimuli‐responsive polymer microcapsules (PMs) fabricated by the sonochemical method have emerged for developing useful drug delivery systems, and the latest developments are mainly focusing on the synthetic strategies and properties such as structure, size, stability, loading capacity, drug delivery, and release. There, the primary attribution of sonochemistry is to offer a simple and practical approach for the preparation of PMs. Structure, size, stability, and properties of PMs are designed mainly according to synthetic materials, implementation schemes, or specific demands. Numerous functionalities of PMs based on different stimuli are demonstrated: targeting motion in a magnetic field or adhering to the living cells with sensitive sites through molecular recognition, and stimuli‐triggered release including enzymatic catalysis, chemical reaction as well as physical or mechanical process. The current review discusses the basic principles and mechanisms of stimuli effects, and describes the progress in the application such as targeted drug systems and controlled drug systems, and also gives an outlook on the future challenges and opportunities for drug delivery and theranostics.
    Type of Medium: Online Resource
    ISSN: 2192-2640 , 2192-2659
    URL: Issue
    URL: Article
    DOI: 10.1002/adhm.v7.11
    DOI: 10.1002/adhm.201701326
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2645585-7
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  • 7
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    Allosteric Switching of Calmodulin in a Mycobacterium smegmatis porin A (MspA) Nanopore‐Trap
    Wiley ; 2021
    In:  Angewandte Chemie Vol. 133, No. 44 ( 2021-10-25), p. 24056-24063
    Details
    In: Angewandte Chemie, Wiley, Vol. 133, No. 44 ( 2021-10-25), p. 24056-24063
    Abstract: Recent developments concerning large protein nanopores suggest a new approach to structure profiling of native folded proteins. In this work, the large vestibule of Mycobacterium smegmatis porin A (MspA) and calmodulin (CaM), a Ca 2+ ‐binding protein, were used in the direct observation of the protein structure. Three conformers, including the Ca 2+ ‐free, Ca 2+ ‐bound, and target peptide‐bound states of CaM, were unambiguously distinguished. A disease related mutant, CaM D129G was also discriminated by MspA, revealing how a single amino acid replacement can interfere with the Ca 2+ ‐binding capacity of the whole protein. The binding capacity and aggregation effect of CaM induced by different ions (Mg 2+ /Sr 2+ /Ba 2+ /Ca 2+ /Pb 2+ /Tb 3+ ) were also investigated and the stability of MspA in extreme conditions was evaluated. This work demonstrates the most systematic single‐molecule investigation of different allosteric conformers of CaM, acknowledging the high sensing resolution offered by the MspA nanopore trap.
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v133.44
    DOI: 10.1002/ange.202110545
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 505868-5
    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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  • 8
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    Highly Flexible and Self‐Healable Zinc‐Ion Hybrid Supercapacitors Based on MWCNTs‐RGO Fibers
    Wiley ; 2020
    In:  Advanced Materials Technologies Vol. 5, No. 9 ( 2020-09)
    Details
    In: Advanced Materials Technologies, Wiley, Vol. 5, No. 9 ( 2020-09)
    Abstract: As the flexible wearable devices are developing rapidly, the requirement for energy storage devices with high energy and power density, excellent flexibility, and high reliability is increasing. Fiber‐shaped supercapacitors offering high power density and excellent flexibility have attracted widespread attention. However, the low energy density and poor reliability limit the practical application of these fiber‐shaped supercapacitors. To overcome these problems, a new zinc‐ion hybrid fiber supercapacitor (ZHFSC) is designed and realized. As both capacitor‐type and battery‐type energy storage mechanisms can be used, the energy density of ZHFSC is expected to be improved. Furthermore, the excellent self‐healability of poly(vinyl alcohol) (PVA)/Zn(CF 3 SO 3 ) 2 aqueous gel electrolyte contributes to the high reliability of the ZHFSC. As a proof of concept, the maximum power density and energy density of the ZHFSC are, respectively, as high as 1433.2 mW cm −3 and 13.1 mWh cm −3 , and the capacitance retention, respectively, has the high values of 87.8% and 70.5% under the bending degree of 150° and after the fifth self‐healing. This study offers an efficient method to realize the high‐performance supercapacitors for flexible wearable devices in the future.
    Type of Medium: Online Resource
    ISSN: 2365-709X , 2365-709X
    URL: Issue
    URL: Article
    DOI: 10.1002/admt.v5.9
    DOI: 10.1002/admt.202000268
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2850995-X
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  • 9
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    An Ultrahigh Energy Density Quasi‐Solid‐State Zinc Ion Microbattery with Excellent Flexibility and Thermostability
    Wiley ; 2019
    In:  Advanced Energy Materials Vol. 9, No. 37 ( 2019-10)
    Details
    In: Advanced Energy Materials, Wiley, Vol. 9, No. 37 ( 2019-10)
    Abstract: The rapid development of smart wearable and integrated electronic products has urgently increased the requirement for high‐performance microbatteries. Although few lithium ion microbatteries based on organic electrolytes have been reported so far, the problems, such as undesirable energy density, poor flexibility, inflammability, volatility toxicity, and high cost restrict their practical applications in the above‐mentioned electronic products. In order to overcome these problems, a low cost quasi‐solid‐state aqueous zinc ion microbattery (ZIMB) assembled by a vanadium dioxide (B)‐multiwalled carbon nanotubes (VO 2 (B)‐MWCNTs) cathode, a zinc nanoflakes anode, and a zinc trifluoromethanesulfonate‐polyvinyl alcohol (Zn(CF 3 SO 3 ) 2 ‐PVA) hydrogel electrolyte is exploited. As expected, the ZIMB exhibits excellent electrochemical performance, e.g., a high capacity of 314.7 µAh cm −2 , an ultrahigh energy density of 188.8 µWh cm −2 , and a high power density of 0.61 mW cm −2 . Furthermore, the ZIMB also shows high flexibility and excellent high temperature stability: the capacity has no obvious decay when the bending angle is up to 150° and the temperature reaches 100 °C. The ZIMB provides a way to develop next‐generation miniature energy storage devices with high performance.
    Type of Medium: Online Resource
    ISSN: 1614-6832 , 1614-6840
    URL: Issue
    URL: Article
    DOI: 10.1002/aenm.v9.37
    DOI: 10.1002/aenm.201901957
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2594556-7
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  • 10
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    Plasmonic Metal Nanoparticles for Artificial Photosynthesis: Advancements, Mechanisms, and Perspectives
    Wiley ; 2021
    In:  Solar RRL Vol. 5, No. 12 ( 2021-12)
    Details
    In: Solar RRL, Wiley, Vol. 5, No. 12 ( 2021-12)
    Abstract: Plasmonic metal nanoparticles (PNPs) have been proven effective in improving the performance of semiconductor photocatalysts for artificial photosynthesis (AP). It brings about more light absorption for catalysts and new pathways for chemical reactions, which shows great potential in solar energy conversion. To see the current status and possible development of this material in AP reactions, including photocatalytic water splitting and CO 2 reduction, the important advances in this field based on particulate photocatalysts containing PNPs are reviewed. Relevant mechanisms proposed in literature are also summarized. In the end, perspectives and outlook on the development of PNPs in AP are presented.
    Type of Medium: Online Resource
    ISSN: 2367-198X , 2367-198X
    URL: Issue
    URL: Article
    DOI: 10.1002/solr.v5.12
    DOI: 10.1002/solr.202100611
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2882014-9
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