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  • Wiley  (47)
  • 1
    In: Polymer Composites, Wiley, Vol. 43, No. 6 ( 2022-06), p. 3846-3857
    Abstract: Hexagonal boron nitride (h‐BN) micro‐platelets were surface‐functionalized by sulfuric acid (SA). Such modified h‐BN powders were mixed with thermoplastic polyether imide (PEI) to prepare flexible composite films using a solution casting method. After surface modification, the h‐BN powders were uniformly dispersed in the PEI matrix. The thermal conductivity of the flexible composite materials was significantly improved, with a 60% increase over that of pure PEI. The mechanical properties of the composites were also measured and discussed. The Young's modulus of the h‐BN/PEI composites was increased from 1.15 GPa for pure PEI to 1.62 GPa for the h‐BN/PEI composite with a filling ratio 10 vol%. As compared to pure PEI film, the electrical breakdown strength of the composites with 5 vol% h‐BN increased from 45.3 to 55.3 kV/mm. Our results show that the surface‐modified h‐BN filler is effective in improving the thermal conductivity and insulation performance of PEI‐based composites.
    Type of Medium: Online Resource
    ISSN: 0272-8397 , 1548-0569
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 1475935-4
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  • 2
    In: Small, Wiley, Vol. 15, No. 3 ( 2019-01)
    Abstract: A significant development in the design of a NiCo 2 S 4 3D hierarchical hollow nanoarrow arrays (HNA)‐based supercapacitor binder free electrode assembled by 1D hollow nanoneedles and 2D nanosheets on a Ni foam collector through controlling ionic liquid 1‐octyl‐3‐methylimidazolium chloride ([OMIm]Cl) concentration is reported. The unique NiCo 2 S 4 ‐HNA electrode acquires high specific capacity (1297 C g −1 at 1 A g −1 , 2.59 C cm −2 at 2 mA cm −2 ), excellent rate capability (maintaining 73.0% at 20 A g −1 ), and long operational life (maintaining 92.4% after 10 000 cycles at 5 A g −1 ), which are superior to those for 1D hollow nanoneedle arrays (HNN) and 2D porous nanoflake arrays (PNF). The outstanding electrochemical performance is attributed to the novel 3D structure with large specific surface, hollow cores, high porosity as well as stable architecture. In addition, a hybrid supercapacitor applying 3D NiCo 2 S 4 ‐HNA as the positive electrode and active carbon as the negative electrode exhibits a high energy density of 42.5 Wh kg −1 at a power density of 2684.2 W kg −1 in an operating voltage of 1.6 V. Robust cycling stability is also expressed with 84.9% retention after repeating 10 000 cycles at 5 A g −1 , implying their great potential in superior‐performance supercapacitors.
    Type of Medium: Online Resource
    ISSN: 1613-6810 , 1613-6829
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2168935-0
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  • 3
    In: Advanced Functional Materials, Wiley, Vol. 30, No. 52 ( 2020-12)
    Abstract: Due to the potential applications in optoelectronic memories, optical control of ferroelectric domain walls has emerged as an intriguing and important topic in modern solid‐state physics. However, its device implementation in a single ferroelectric, such as conventional BaTiO 3 or PZT ceramics, still presents huge challenges in terms of the poor material conductivity and the energy mismatch between incident photons and ferroelectric switching. Here, using the generation of photocurrent in conductive α‐In 2 Se 3 (a van der Waals ferroelectric) with a two‐terminal planar architecture, the first demonstration of optical‐engineered ferroelectric domain wall in a non‐volatile manner for optoelectronic memory application is reported. The α‐In 2 Se 3 device exhibits a large optical‐writing and electrical‐erasing (on/off) ratio of 〉 10 4 , as well as multilevel current switching upon optical excitation. The narrow direct bandgap of the multilayer α‐In 2 Se 3 ferroelectric endows the device with broadband optical‐writing wavelengths greater than 900 nm. In addition, photonic synapses with approximate linear weight updates for neuromorphic computing are also achieved in the ferroelectric devices. This work represents a breakthrough toward technological applications of ferroelectric nanodomain engineering by light.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    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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  • 4
    In: Advanced Materials, Wiley, Vol. 31, No. 28 ( 2019-07)
    Abstract: The ability to pattern natural polymers at different scales is extremely important for many research areas, such as cell culture, regenerative medicine, bioelectronics, tissue engineering, degradable implants, and photonics. For the first time, the use of wool keratin (WK) as a structural biomaterial for fabricating precise protein microarchitectures is presented. Through straightforward biochemical processes, modified WK proteins become intrinsically photoreactive without significant changes in protein structure or function. Under light irradiation, intermolecular chemical crosslinking between WK molecules can be successfully initiated by using commercially available photoinitiators. As a result, high‐performance WK patterning on the micrometer scale (µm) can be achieved through a combination of water‐based photolithography techniques. By simply mixing with nanoparticles, enzymes, and other dopants, various “functional WK resists” can be generated. In addition, without the addition of any cell‐adhesive ligands, these patterned protein microstructures are demonstrated as bio‐friendly cellular substrates for the spatial guidance of cells on their surface. Furthermore, periodic microfabricated WK structures in complex patterns that display typical iridescent behavior can be designed and formed over macroscale areas (cm).
    Type of Medium: Online Resource
    ISSN: 0935-9648 , 1521-4095
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 1474949-X
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  • 5
    In: Advanced Functional Materials, Wiley, Vol. 33, No. 38 ( 2023-09)
    Abstract: LiF‐rich solid‐electrolyte‐interphase (SEI) can suppress the formation of lithium dendrites and promote the reversible operation of lithium metal batteries. Regulating the composition of naturally formed SEI is an effective strategy, while understanding the impact and role of fluorine (F)‐based Li‐salts on the SEI characteristics is unavailable. Herein, LiFSI, LiTFSI, and LiPFSI are selected to prepare solid polymer electrolytes (SPEs) with poly(ethylene oxide) and polyimide, investigating the effects of molecular size, F contents and chemical structures (F‐connecting bonds) of Li‐salts and revealing the formation of LiF in the SEI. It is shown that the F‐connecting bond is more significant than the molecular size and F element contents, and thus the performances of cells using LiPFSI are slightly better than LiTFSI and much better than LiFSI. The SPE containing LiPFSI can generate a high amount of LiF, and SPEs containing LiPFSI and LiTFSI can generate Li 3 N, while there is no Li 3 N production in the SEI for the SPE containing LiFSI. The preferential breakage bonds in LiPFSI are related to its position to Li anode, where Li‐metal as the anode is important in forming LiF, and consequently the LiPFSI reduction mechanism is proposed. This study will boost other energy storage systems beyond Li‐ion chemistries.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2029061-5
    detail.hit.zdb_id: 2039420-2
    SSG: 11
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  • 6
    In: ChemCatChem, Wiley, Vol. 15, No. 1 ( 2023-01-09)
    Type of Medium: Online Resource
    ISSN: 1867-3880 , 1867-3899
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2501161-3
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  • 7
    In: Advanced Healthcare Materials, Wiley, Vol. 11, No. 13 ( 2022-07)
    Abstract: Artificial construction from tendon to bone remains a formidable challenge in tissue engineering owing to their structural complexity. In this work, bioinspired calcium silicate nanowires and alginate composite hydrogels are utilized as building blocks to construct multiscale hierarchical bioactive scaffolds for versatile tissue engineering from tendon to bone. By integrating 3D printing technology and mechanical stretch post‐treatment in a confined condition, the obtained composite hydrogels possess bioinspired reinforcement architectures from nano‐ to submicron‐ to microscale with significantly enhanced mechanical properties. The biochemical and topographical cues of the composite hydrogel scaffolds provide much more efficient microenvironment to the rabbit bone mesenchymal stem cells and rabbit tendon stem cells, leading to ordered alignment and improved differentiation. The composite hydrogels markedly promote in vivo tissue regeneration from bone to tendon, especially fibrocartilage transitional tissue. Therefore, such calcium silicate nanowires/alginate composite hydrogels with multiscale hierarchical structures have potential application for tissue regeneration from tendon to bone. This work provides an innovative strategy to construct multiscale hierarchical architecture‐based scaffolds for tendon/bone engineering.
    Type of Medium: Online Resource
    ISSN: 2192-2640 , 2192-2659
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2645585-7
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  • 8
    Online Resource
    Online Resource
    Wiley ; 2023
    In:  International Wound Journal Vol. 20, No. 1 ( 2023-01), p. 210-220
    In: International Wound Journal, Wiley, Vol. 20, No. 1 ( 2023-01), p. 210-220
    Abstract: Continuous sutures and interrupted sutures have been widely applied to skin closure after non‐obstetric surgery or traumatic wounds. Usually, continuous sutures were divided into transdermal or subcuticular sutures according to whether the stitches were placed through or below the epidermal layer. Interrupted sutures, on the other hand, involved penetration of the loose connective tissue beneath the skin layers, with stitches placed through the external skin layer. Complications including infection, dehiscence, and poor cosmetic appearance were not rare after suturing. Whether a suture method is a suitable option for rapid wound healing and long‐term cosmetic appearance remains controversial. To examine the potential benefits and harms of continuous skin sutures vs interrupted skin sutures in non‐obstetric surgery or traumatic wounds. Searching websites such as PubMed, the Cochrane Central Library, Web of Science and Embase, and ClinicalTrials.gov were systematically searched up to 5 January 2022 and were assessed and guided by Preferred Reporting Items for Systematic Reviews and Meta‐analysis rules as well as guidelines. All relevant randomised controlled studies comparing continuous sutures with interrupted sutures of skin closure were analysed. The suture techniques and material used in each trial were recorded. The transdermal and subcuticular continuous sutures were separately compared with interrupted sutures in the subgroup analysis of dehiscence and cosmetic appearance because the visual appearance of these two continuous suturing techniques was significantly different. Ten studies including 1181 participants were analysed. Subcuticular continuous sutures had comparatively higher visual analogue scale (VAS) scores among patients and doctors than interrupted sutures (OR = 0.27, 95% Confidence Intervals [CI] = 0. 07‐0.47, P   〈  .01). Similarly, priority was found regarding transdermal continuous sutures and interrupted sutures (OR = 0.40, 95% CI = 0.21‐0.60, P   〈  .01). Five randomised controlled trials (RCTs) demonstrated relevant data about dehiscence events. The incidence of continuous suture was significantly lesser than that of interrupted suture (OR = 0.16, 95% CI = 0.07‐0.37, P   〈  .01). There was no significant difference between the infection events rates of two suture methods (OR = 0.69, 95% CI = 0.40‐1.21, P  = .62, I 2  = 0%). This systematic review indicated the superiority of both transdermal and subcutaneous continuous sutures over interrupted sutures in skin closure in terms of wound healing and cosmetic appearance.
    Type of Medium: Online Resource
    ISSN: 1742-4801 , 1742-481X
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2152163-3
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  • 9
    In: Cancer Science, Wiley, Vol. 114, No. 9 ( 2023-09), p. 3608-3622
    Abstract: Increasing evidence has shown that circular RNAs (circRNAs) interact with RNA‐binding proteins (RBPs) and promote cancer progression. However, the function and mechanism of the circRNA/RBP complex in esophageal squamous cell carcinoma (ESCC) are still largely unknown. Herein, we first characterized a novel oncogenic circRNA, circ‐FIRRE, by RNA sequencing (Ribo‐free) profiling of ESCC samples. Furthermore, we observed marked circ‐FIRRE overexpression in ESCC patients with high TNM stage and poor overall survival. Mechanistic studies indicated that circ‐FIRRE, as a platform, interacts with the heterogeneous nuclear ribonucleoprotein C (HNRNPC) protein to stabilize GLI2 mRNA by directly binding to its 3’‐UTR in the cytoplasm, thereby resulting in elevated GLI2 protein expression and subsequent transcription of its target genes MYC , CCNE1 , and CCNE2 , ultimately contributing to ESCC progression. Moreover, HNRNPC overexpression in circ‐FIRRE knockdown cells notably abolished circ‐FIRRE knockdown‐mediated Hedgehog pathway inhibition and ESCC progression impairment in vitro and in vivo. Clinical specimen results showed that circ‐FIRRE and HNRNPC expression was positively correlated with GLI2 expression, which reveals the clear significance of the circ‐FIRRE/HNRNPC‐GLI2 axis in ESCC. In summary, our results indicate that circ‐FIRRE could serve as a valuable biomarker and potential therapeutic target for ESCC and highlight a novel mechanism of the circ‐FIRRE/HNRNPC complex in ESCC progression regulation.
    Type of Medium: Online Resource
    ISSN: 1347-9032 , 1349-7006
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2115647-5
    detail.hit.zdb_id: 2111204-6
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  • 10
    In: Angewandte Chemie International Edition, Wiley, Vol. 60, No. 44 ( 2021-10-25), p. 23713-23721
    Abstract: Biofuel production can alleviate reliance on fossil resources and thus carbon dioxide emission. Hydrodeoxygenation (HDO) refers collectively to a series of important biorefinery processes to produce biofuels. Here, well‐dispersed and ultra‐small Ru metal nanoclusters (ca. 1 nm), confined within the micropores of zeolite Y, provide the required active site intimacy, which significantly boosts the chemoselectivity towards the production of pentanoic biofuels in the direct, one‐pot HDO of neat ethyl levulinate. Crucial for improving catalyst stability is the addition of La, which upholds the confined proximity by preventing zeolite lattice deconstruction during catalysis. We have established and extended an understanding of the “intimacy criterion” in catalytic biomass valorization. These findings bring new understanding of HDO reactions over confined proximity sites, leading to potential application for pentanoic biofuels in biomass conversion.
    Type of Medium: Online Resource
    ISSN: 1433-7851 , 1521-3773
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2011836-3
    detail.hit.zdb_id: 123227-7
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