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  • Wiley  (8)
  • 2020-2024  (8)
  • 1
    Online Resource
    Online Resource
    The Influence of Xanthan Gum on Rheological Properties and In Vitro Digestibility of Kudzu ( Pueraria lobata ) Starch
    Wiley ; 2020
    In:  Starch - Stärke Vol. 72, No. 3-4 ( 2020-03)
    Details
    In: Starch - Stärke, Wiley, Vol. 72, No. 3-4 ( 2020-03)
    Abstract: The study describes the effects of xanthan gum (0.5–2.0%) on the in vitro digestibility and rheological and pasting properties of kudzu ( Pueraria lobata ) starch pastes. The flow behavior index ( n ) shows a decrease in trends (from 0.43 to 0.31) as the xanthan gum concentration increases, indicating pseudoplastic behavior. Dynamic viscoelasticity analysis indicate that the elastic ( G ′) and viscous ( G ″) moduli increase in the presence of xanthan gum, suggesting a strong interaction between xanthan gum and kudzu starch in the composite system. All concentrations of xanthan gum result in increased elasticity ( G ′  〉   G ″). Pasting properties reveal that the peak and final viscosity of the xanthan gum–kudzu starch dispersion decreases with the increasing concentration of xanthan gum, highlighting the importance of xanthan gum in controlling overall viscosity. The addition of xanthan gum also decreases the hydrolysis of kudzu starch during in vitro digestion.
    Type of Medium: Online Resource
    ISSN: 0038-9056 , 1521-379X
    URL: Issue
    URL: Article
    DOI: 10.1002/star.v72.3-4
    DOI: 10.1002/star.201900139
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 1481133-9
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  • 2
    Online Resource
    Online Resource
    N ‐Doped Nonalternant Nanoribbons with Excellent Nonlinear Optical Performance
    Wiley ; 2023
    In:  Angewandte Chemie Vol. 135, No. 33 ( 2023-08-14)
    Details
    In: Angewandte Chemie, Wiley, Vol. 135, No. 33 ( 2023-08-14)
    Abstract: Two novel N ‐doped nonalternant nanoribbons ( NNNR‐1 and NNNR‐2 ) featuring multiple fused N ‐heterocycles and bulky solubilizing groups were prepared via bottom‐up solution synthesis. NNNR‐2 achieves a total molecular length of 33.8 Å, which represents the longest soluble N ‐doped nonalternant nanoribbon reported to date. The pentagon subunits and doping of N atoms in NNNR‐1 and NNNR‐2 have successfully regulated their electronic properties, achieving high electron affinity and good chemical stability enabled by the nonalternant conjugation and electronic effects. When applied a laser pulse of 532 nm, the 13‐rings nanoribbon NNNR‐2 shows outstanding nonlinear optical (NLO) responses, with the nonlinear extinction coefficient of 374 cm GW −1 , much higher than those of NNNR‐1 (96 cm GW −1 ) and the well‐known NLO material C 60 (153 cm GW −1 ). Our findings indicate that the N ‐doping of nonalternant nanoribbons is an effective strategy to access another type of excellent material system for high‐performance NLO applications, which can be extended to construct numerous heteroatom‐doped nonalternant nanoribbons with fine‐tunable electronic properties.
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v135.33
    DOI: 10.1002/ange.202306418
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    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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  • 3
    Online Resource
    Online Resource
    Identification and characterization of select oxysterols as ligands for GPR17
    Wiley ; 2023
    In:  British Journal of Pharmacology Vol. 180, No. 4 ( 2023-02), p. 401-421
    Details
    In: British Journal of Pharmacology, Wiley, Vol. 180, No. 4 ( 2023-02), p. 401-421
    Abstract: G‐protein coupled receptor 17 (GPR17) is an orphan receptor involved in the process of myelination, due to its ability to inhibit the maturation of oligodendrocyte progenitor cells (OPCs) into myelinating oligodendrocytes. Despite multiple claims that the biological ligand has been identified, it remains an orphan receptor. Experimental Approach Seventy‐seven oxysterols were screened in a cell‐free [ 35 S]GTPγS binding assay using membranes from cells expressing GPR17. The positive hits were characterized using adenosine 3′,5′ cyclic monophosphate (cAMP), inositol monophosphate (IP1) and calcium mobilization assays, with results confirmed in rat primary oligodendrocytes. Rat and pig brain extracts were separated by high‐performance liquid chromatography (HPLC) and endogenous activator(s) were identified in receptor activation assays. Gene expression studies of GPR17 , and CYP46A1 (cytochrome P450 family 46 subfamily A member 1) enzymes responsible for the conversion of cholesterol into specific oxysterols, were performed using quantitative real‐time PCR. Key Results Five oxysterols were able to stimulate GPR17 activity, including the brain cholesterol, 24(S)‐hydroxycholesterol (24S‐HC). A specific brain fraction from rat and pig extracts containing 24S‐HC activates GPR17 in vitro. Expression of Gpr17 during mouse brain development correlates with the expression of Cyp46a1 and the levels of 24S‐HC itself. Other active oxysterols have low brain concentrations below effective ranges. Conclusions and Implications Oxysterols, including but not limited to 24S‐HC, could be physiological activators for GPR17 and thus potentially regulate OPC differentiation and myelination through activation of the receptor.
    Type of Medium: Online Resource
    ISSN: 0007-1188 , 1476-5381
    URL: Issue
    URL: Article
    DOI: 10.1111/bph.v180.4
    DOI: 10.1111/bph.15969
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2029728-2
    SSG: 15,3
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  • 4
    Online Resource
    Online Resource
    Multiway Softness Polyurethane Elastomeric Composite with Enhanced Thermal Conductivity and Application as Thermal Interface Materials
    Wiley ; 2023
    In:  Advanced Materials Technologies Vol. 8, No. 9 ( 2023-05)
    Details
    In: Advanced Materials Technologies, Wiley, Vol. 8, No. 9 ( 2023-05)
    Abstract: The ever‐increasing computing power in modern electronics comes with significant heat waste that can't be ignored. For microchips to dissipate heat efficiently, thermal interface materials (TIMs) are the most critical components in semiconductor packaging. Soft elastomer composites are often used as TIMs due to their large‐strain reversible deformability with a small external force. For TIMs to cushion between the microchip and heat spreader, they must have high thermal conductivity and temperature‐tunable softness to reduce thermal resistance and relieve the warpage failure caused by thermal stress. However, thermal conductivity and softness are interrelated and restrict each other. To address this challenge, a radical strategy of introducing dynamic covalent bonds in the polyurethane/aluminum composite is used. The reversible and low energy of dynamic imine bonds along with the lengthening of the Khun segment in the crosslinking network imbues the material with temperature‐tunable softness function while maintaining high thermal conductivity. The resulting polyurethane elastomer (PUE) composite exhibits remarkable thermal conductivity (6.90 W m −1 K −1 ), low thermal resistance (0.13 K cm 2 W −1 ), and excellent softness (elastic modulus 759.50 kPa, and stretchability 140.30%). This work provides a practical method to design thermally conductive and temperature‐tunable soft elastomer composites as TIMs in semiconductor packaging.
    Type of Medium: Online Resource
    ISSN: 2365-709X , 2365-709X
    URL: Issue
    URL: Article
    DOI: 10.1002/admt.v8.9
    DOI: 10.1002/admt.202201701
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2850995-X
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  • 5
    Online Resource
    Online Resource
    Defective Zr‐based metal–organic frameworks as sorbent for the determination of fungicides in environmental water samples by rapid dispersive micro‐solid‐phase extraction coupled to liquid chromatography/mass spectrometry
    Wiley ; 2021
    In:  Journal of Separation Science Vol. 44, No. 10 ( 2021-05), p. 2113-2120
    Details
    In: Journal of Separation Science, Wiley, Vol. 44, No. 10 ( 2021-05), p. 2113-2120
    Abstract: In this work, defective Zr‐based metal–organic framework was successfully synthesized and evaluated as a dispersive micro‐solid‐phase extraction sorbent for efficient preconcentration and determination of fungicides in complex water samples. The defective Zr‐based metal–organic framework crystal with increased adsorption capacity was successfully synthesized by employing formic acid as the modulator. The extraction conditions, including the pH, extraction time, desorption solvent and desorption time, were comprehensively investigated. Under optimum conditions, it was found that dispersive micro‐solid‐phase extraction method, coupled with liquid chromatography/mass spectrometry, exhibited a good linear relationship with correlation coefficients greater than 0.9980. The relative standard deviations of inter‐day and intra‐day precisions ranged from 2.6 to 9.2% and the limits of detection ranged from 0.004 to 0.036 μg/L. These merits, combined with their satisfactory recoveries ( 〉 80%), suggested the great potential of defective Zr‐based metal–organic framework as a new adsorbent for efficient extraction of trace fungicides. This method exhibits good application potential for the pretreatment of fungicides from environmental water samples.
    Type of Medium: Online Resource
    ISSN: 1615-9306 , 1615-9314
    URL: Issue
    URL: Article
    DOI: 10.1002/jssc.v44.10
    DOI: 10.1002/jssc.202001240
    RVK:
    VA 5450
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2047990-6
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  • 6
    Online Resource
    Online Resource
    Non‐Hermitian Topolectrical Circuit Sensor with High Sensitivity
    Wiley ; 2023
    In:  Advanced Science Vol. 10, No. 19 ( 2023-07)
    Details
    In: Advanced Science, Wiley, Vol. 10, No. 19 ( 2023-07)
    Abstract: Electronic sensors play important roles in various applications, such as industry and environmental monitoring, biomedical sample ingredient analysis, wireless networks and so on. However, the sensitivity and robustness of current schemes are often limited by the low quality‐factors of resonators and fabrication disorders. Hence, exploring new mechanisms of the electronic sensor with a high‐level sensitivity and a strong robustness is of great significance. Here, a new way to design electronic sensors with superior performances based on exotic properties of non‐Hermitian topological physics is proposed. Owing to the extreme boundary‐sensitivity of non‐Hermitian topological zero modes, the frequency shift induced by boundary perturbations can show an exponential growth trend with respect to the size of non‐Hermitian topolectrical circuit sensors. Moreover, such an exponential growth sensitivity is also robust against disorders of circuit elements. Using designed non‐Hermitian topolectrical circuit sensors, the ultrasensitive identification of the distance, rotation angle, and liquid level is further experimentally verified with the designed capacitive devices. The proposed non‐Hermitian topolectrical circuit sensors can possess a wide range of applications in ultrasensitive environmental monitoring and show an exciting prospect for next‐generation sensing technologies.
    Type of Medium: Online Resource
    ISSN: 2198-3844 , 2198-3844
    URL: Issue
    URL: Article
    DOI: 10.1002/advs.v10.19
    DOI: 10.1002/advs.202301128
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2808093-2
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  • 7
    Online Resource
    Online Resource
    N ‐Doped Nonalternant Nanoribbons with Excellent Nonlinear Optical Performance
    Wiley ; 2023
    In:  Angewandte Chemie International Edition Vol. 62, No. 33 ( 2023-08-14)
    Details
    In: Angewandte Chemie International Edition, Wiley, Vol. 62, No. 33 ( 2023-08-14)
    Abstract: Two novel N ‐doped nonalternant nanoribbons ( NNNR‐1 and NNNR‐2 ) featuring multiple fused N ‐heterocycles and bulky solubilizing groups were prepared via bottom‐up solution synthesis. NNNR‐2 achieves a total molecular length of 33.8 Å, which represents the longest soluble N ‐doped nonalternant nanoribbon reported to date. The pentagon subunits and doping of N atoms in NNNR‐1 and NNNR‐2 have successfully regulated their electronic properties, achieving high electron affinity and good chemical stability enabled by the nonalternant conjugation and electronic effects. When applied a laser pulse of 532 nm, the 13‐rings nanoribbon NNNR‐2 shows outstanding nonlinear optical (NLO) responses, with the nonlinear extinction coefficient of 374 cm GW −1 , much higher than those of NNNR‐1 (96 cm GW −1 ) and the well‐known NLO material C 60 (153 cm GW −1 ). Our findings indicate that the N ‐doping of nonalternant nanoribbons is an effective strategy to access another type of excellent material system for high‐performance NLO applications, which can be extended to construct numerous heteroatom‐doped nonalternant nanoribbons with fine‐tunable electronic properties.
    Type of Medium: Online Resource
    ISSN: 1433-7851 , 1521-3773
    URL: Issue
    URL: Article
    DOI: 10.1002/anie.v62.33
    DOI: 10.1002/anie.202306418
    RVK:
    VA 2100
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2011836-3
    detail.hit.zdb_id: 123227-7
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  • 8
    Online Resource
    Online Resource
    KLF2 / PPARγ axis contributes to trauma‐induced heterotopic ossification by regulating mitochondrial dysfunction
    Wiley ; 2023
    In:  Cell Proliferation
    Details
    In: Cell Proliferation, Wiley
    Abstract: Trauma‐induced heterotopic ossification (HO) is a complex disorder after musculoskeletal injury and characterized by aberrant extraskeletal bone formation. Recent studies shed light on critical role of dysregulated osteogenic differentiation in aberrant bone formation. Krupel‐like factor 2 (KLF2) and peroxisome proliferator‐activated receptor gamma (PPARγ) are master adapter proteins that link cellular responses to osteogenesis; however, their roles and relationships in HO remain elusive. Using a murine burn/tenotomy model in vivo, we identified elevated KLF2 and reduced PPARγ levels in tendon stem/progenitor cells (TSPCs) during trauma‐induced HO formation. Both KLF2 inhibition and PPARγ promotion reduced mature HO, whereas the effects of PPARγ promotion were abolished by KLF2 overexpression. Additionally, mitochondrial dysfunction and reactive oxygen species (ROS) production also increased after burn/tenotomy, and improvements in mitochondrial function (ROS scavenger) could alleviate HO formation, but were abolished by KLF2 activation and PPARγ suppression by affecting redox balance. Furthermore, in vitro, we found increased KLF2 and decreased PPARγ levels in osteogenically induced TSPCs. Both KLF2 inhibition and PPARγ promotion relieved osteogenesis by improving mitochondrial function and maintaining redox balance, and effects of PPARγ promotion were abolished by KLF2 overexpression. Our findings suggest that KLF2/PPARγ axis exerts regulatory effects on trauma‐induced HO through modulation of mitochondrial dysfunction and ROS production in TSPCs by affecting redox balance. Targeting KLF2/PPARγ axis and mitochondrial dysfunction can represent attractive approaches to therapeutic intervention in trauma‐induced HO.
    Type of Medium: Online Resource
    ISSN: 0960-7722 , 1365-2184
    URL: Article
    DOI: 10.1111/cpr.13521
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2019986-7
    SSG: 12
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