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  • 1
    Online Resource
    Online Resource
    Facile synthesis and antibacterial evaluation of poly(acrylamide‐ co ‐(β‐cyclodextrin))/silver nanocomposite
    Wiley ; 2016
    In:  Polymer Composites Vol. 37, No. 5 ( 2016-05), p. 1480-1487
    Details
    In: Polymer Composites, Wiley, Vol. 37, No. 5 ( 2016-05), p. 1480-1487
    Abstract: Hydrogel/silver nanocomposites have shown immense potential in many biological applications. In this article, a facile method to synthesize poly(acrylamide‐ co ‐(β‐cyclodextrin))/silver nanocomposites is reported. The silver nanoparticles were in situ synthesized accompanying with the formation of poly(acrylamide‐ co ‐(β‐cyclodextrin)) hydrogel by gamma irradiation without additional reducing and stabilizing agents. In addition, the nanocomposites were prepared under ambient conditions. The formation of silver nanoparticles was confirmed by ultraviolet used to characterize the structure and composition of the synthetic nanocomposites. Transmission electron microscope verified the formation and homogeneous distribution of silver nanoparticles in the hydrogel matrix. The hybrid hydrogel exhibited excellent water‐swelling properties, which could be controlled by varying the mass ratio of acrylamide (AM) to β‐cyclodextrin (β‐CD) in the hydrogel. Furthermore, the poly(acrylamide‐co‐(β‐cyclodextrin))/silver nanocomposites were found to be effective in inhibiting the growth of both Gram‐negative Escherichia coli and Gram‐positive Staphylococcus aureus . POLYM. COMPOS., 37:1480–1487, 2016. © 2014 Society of Plastics Engineers
    Type of Medium: Online Resource
    ISSN: 0272-8397 , 1548-0569
    URL: Issue
    URL: Article
    DOI: 10.1002/pc.v37.5
    DOI: 10.1002/pc.23317
    Language: English
    Publisher: Wiley
    Publication Date: 2016
    detail.hit.zdb_id: 1475935-4
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  • 2
    Online Resource
    Online Resource
    Electron‐Selective Strontium Oxide Contact for Crystalline Silicon Solar Cells with High Fill Factor
    Wiley ; 2023
    In:  Solar RRL Vol. 7, No. 9 ( 2023-05)
    Details
    In: Solar RRL, Wiley, Vol. 7, No. 9 ( 2023-05)
    Abstract: Extensive efforts have been made to develop wide‐bandgap metal compound‐based carrier‐selective contacts to improve the performance of crystalline silicon (c‐Si) solar cells, by mitigating the deleterious effects of metal–Si contact directly. Herein, thermally evaporated wide‐bandgap strontium oxide (SrO x ) is exploited as an electron‐selective contact for c‐Si solar cells. Benefiting from a lower work function (3.1 eV) of SrO x , a strong downward band‐bending is achieved at the n‐type c‐Si/SrO x interface, enabling the electron‐selective transport characteristic. Thin SrO x films simultaneously provide moderate surface passivation after annealing and enable a low contact resistivity on c‐Si surfaces. By the implementation of a single‐dielectric‐layer SrO x ‐based rear contact, a champion power conversion efficiency of 20.0% is realized on the n‐type c‐Si solar cell featuring an intriguing fill factor of 82.8%. Moreover, electron‐selective SrO x contact is demonstrated to show high thermal stability up to 500 °C. The SrO x layer formed by a facile thermal evaporation process presents a unique opportunity to develop highly efficient and low‐cost c‐Si solar cells.
    Type of Medium: Online Resource
    ISSN: 2367-198X , 2367-198X
    URL: Issue
    URL: Article
    DOI: 10.1002/solr.v7.9
    DOI: 10.1002/solr.202201100
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2882014-9
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  • 3
    Online Resource
    Online Resource
    Preparation of W 1 /O/ W 2 emulsion to limit the diffusion of Fe 3+ in the Fricke gel 3D dosimeter
    Wiley ; 2020
    In:  Polymers for Advanced Technologies Vol. 31, No. 10 ( 2020-10), p. 2127-2135
    Details
    In: Polymers for Advanced Technologies, Wiley, Vol. 31, No. 10 ( 2020-10), p. 2127-2135
    Abstract: The irradiation of tumors in radiotherapy requires accurate 3D dosimetry. The Fricke 3D dosimeters, which were considered to be high potential of application in 3D dosimetry, suffer from a reduced temporal integrity of dose distribution caused by Fe 3+ ions diffusion. To overcome the drawback, we firstly synthesized a kind of amphiphilic molecules with critical micelle concentration of 0.45 g/L and hydrophile‐lipophile balance value of 10, then prepared multiple emulsions by self‐assembling those molecules in Fricke solution under liquid paraffin, and finally obtained Fricke hydrogel embedded with the multiple emulsions. The diffusion coefficient of Fe 3+ ions in the embedded Fricke hydrogel was measured to be 0.17 mm 2 /h. The hydrogel dosimeter exhibits considerable potential for use in dose verification applications.
    Type of Medium: Online Resource
    ISSN: 1042-7147 , 1099-1581
    URL: Issue
    URL: Article
    DOI: 10.1002/pat.v31.10
    DOI: 10.1002/pat.4934
    RVK:
    VA 6586
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 1481102-9
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  • 4
    Online Resource
    Online Resource
    Radiation‐sensitive nanogel‐incorporated Fricke hydrogel dosimeters with reduced diffusion rates
    Wiley ; 2023
    In:  Polymers for Advanced Technologies Vol. 34, No. 2 ( 2023-02), p. 539-548
    Details
    In: Polymers for Advanced Technologies, Wiley, Vol. 34, No. 2 ( 2023-02), p. 539-548
    Abstract: Fricke gel dosimeters have great potential for three‐dimensional (3D) dose verification in radiation therapy; however, they suffer from time‐dependent ion diffusion after irradiation, severely affecting their stability and reliability. In this work, a pullulan‐based amphiphilic molecule was synthesized, characterized, and self‐assembled into nanogels. Nanogel structures were embedded into gel dosimeters to reduce the diffusion rates, and radiation‐sensitive nanogel‐incorporated Fricke hydrogel nanocomposites were prepared successfully. The results demonstrated that the diffusion coefficient of improved dosimeters was reduced to 0.125 ± 0.001 mm 2  h −1 , while maintaining the high optical dose sensitivity (0.0410 ± 0.0004 Gy −1  cm −1 ). It provides a powerful tool toward the practical application of 3D dosimeters.
    Type of Medium: Online Resource
    ISSN: 1042-7147 , 1099-1581
    URL: Issue
    URL: Article
    DOI: 10.1002/pat.v34.2
    DOI: 10.1002/pat.5904
    RVK:
    VA 6586
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 1481102-9
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  • 5
    Online Resource
    Online Resource
    Carbon Nanotubes with Cobalt Corroles for Hydrogen and Oxygen Evolution in pH 0–14 Solutions
    Wiley ; 2018
    In:  Angewandte Chemie International Edition Vol. 57, No. 46 ( 2018-11-12), p. 15070-15075
    Details
    In: Angewandte Chemie International Edition, Wiley, Vol. 57, No. 46 ( 2018-11-12), p. 15070-15075
    Abstract: Water splitting is promising to realize a hydrogen‐based society. The practical use of molecular water‐splitting catalysts relies on their integration onto electrode materials. We describe herein the immobilization of cobalt corroles on carbon nanotubes (CNTs) by four strategies and compare the performance of the resulting hybrids for H 2 and O 2 evolution. Co corroles can be covalently attached to CNTs with short conjugated linkers (the hybrid is denoted as H1 ) or with long alkane chains ( H2 ), or can be grafted to CNTs via strong π–π interactions ( H3 ) or via simple adsorption ( H4 ). An activity trend H1 ≫ H3 〉 H2 ≈ H4 is obtained for H 2 and O 2 evolution, showing the critical role of electron transfer ability on electrocatalysis. Notably, H1 is the first Janus catalyst for both H 2 and O 2 evolution reactions in pH 0–14 aqueous solutions. Therefore, this work is significant to show potential uses of electrode materials with well‐designed molecular catalysts in electrocatalysis.
    Type of Medium: Online Resource
    ISSN: 1433-7851 , 1521-3773
    URL: Issue
    URL: Article
    DOI: 10.1002/anie.v57.46
    DOI: 10.1002/anie.201807996
    RVK:
    VA 2100
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2011836-3
    detail.hit.zdb_id: 123227-7
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  • 6
    Online Resource
    Online Resource
    Carbon Nanotubes with Cobalt Corroles for Hydrogen and Oxygen Evolution in pH 0–14 Solutions
    Wiley ; 2018
    In:  Angewandte Chemie Vol. 130, No. 46 ( 2018-11-12), p. 15290-15295
    Details
    In: Angewandte Chemie, Wiley, Vol. 130, No. 46 ( 2018-11-12), p. 15290-15295
    Abstract: Water splitting is promising to realize a hydrogen‐based society. The practical use of molecular water‐splitting catalysts relies on their integration onto electrode materials. We describe herein the immobilization of cobalt corroles on carbon nanotubes (CNTs) by four strategies and compare the performance of the resulting hybrids for H 2 and O 2 evolution. Co corroles can be covalently attached to CNTs with short conjugated linkers (the hybrid is denoted as H1 ) or with long alkane chains ( H2 ), or can be grafted to CNTs via strong π–π interactions ( H3 ) or via simple adsorption ( H4 ). An activity trend H1 ≫ H3 〉 H2 ≈ H4 is obtained for H 2 and O 2 evolution, showing the critical role of electron transfer ability on electrocatalysis. Notably, H1 is the first Janus catalyst for both H 2 and O 2 evolution reactions in pH 0–14 aqueous solutions. Therefore, this work is significant to show potential uses of electrode materials with well‐designed molecular catalysts in electrocatalysis.
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v130.46
    DOI: 10.1002/ange.201807996
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    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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  • 7
    Online Resource
    Online Resource
    Physiochemical Coupled Dynamic Nanosphere Lithography Enabling Multiple Metastructures from Single Mask
    Wiley ; 2024
    In:  Advanced Materials
    Details
    In: Advanced Materials, Wiley
    Abstract: Metastructures are widely used in photonic devices, energy conversion, and biomedical applications. However, to fabricate multiple patterns continuously in single etching protocol with highly tunable photonic properties is challenging. Here, a simple and robust dynamic nanosphere lithography is proposed by inserting a spacer between the nanosphere assembly and the wafer. The nanosphere diameter decrease and uneven penetration of the spacer during etching lead to a dynamic masking process. Coupled anisotropic physical ion sputtering and ricocheting with isotropic chemical radical etching achieve highly tunable structures with various 3D patterns continuously forming through a single etching process. Specifically, the nanosphere diameters define the periodicity, the etched spacer forms the upper parts, and the wafer forms the lower parts. Each part of the structure is highly tunable through changing nanosphere diameter, spacer thickness, and etch conditions. Using this protocol, numerous structures of varying sizes including nanomushrooms, nanocones, nanopencils, and nanoneedles with diverse shapes are realized as proof of concepts. The broadband antireflection ability of the nanostructures and their use in surface‐enhanced Raman spectroscopy are also demonstrated for practical application. This method substantially simplifies the fabrication procedure of various metastructures, paving the way for its application in multiple disciplines especially in photonic devices.
    Type of Medium: Online Resource
    ISSN: 0935-9648 , 1521-4095
    URL: Article
    DOI: 10.1002/adma.202310469
    RVK:
    UA 1538
    Language: English
    Publisher: Wiley
    Publication Date: 2024
    detail.hit.zdb_id: 1474949-X
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  • 8
    Online Resource
    Online Resource
    Intracellular Expression of Antifreeze Peptides in Food Grade Lactococcus lactis and Evaluation of Their Cryoprotective Activity
    Wiley ; 2018
    In:  Journal of Food Science Vol. 83, No. 5 ( 2018-05), p. 1311-1320
    Details
    In: Journal of Food Science, Wiley, Vol. 83, No. 5 ( 2018-05), p. 1311-1320
    Abstract: Antifreeze peptides can protect living organisms from low temperatures by preventing damage or killing due to ice crystal formation between cells. Therefore, antifreeze peptides can be used as a low temperature protectant for cryopreservation of cells and tissues, and also in food production. In this study, a recombinant SF‐P gene was constructed and inserted into pNZ8149 to construct a food grade expression vector, which was then electroporated into Lactococcus lactis NZ3900. The expression of the target protein was induced using Nisin, and the optimal expression condition was determined to be a pH of 6.0, Nisin concentration of 25 ng/mL, temperature of 37 °C, and incubation time of 6 hr. Compared to the strain NZ3900 and the recombinant strain SF‐P 1 without addition of Nisin, the recombinant strain SF‐P 2 showed the highest cell survival and thermal hysteresis activity, and had a reduction in the changes of activities of extracellular and intracellular lactate dehydrogenase and β‐galactosidase after freezing. Moreover, analysis by SEM showed that SF‐P 2 cells were more completely and regularly shaped than other strains, displayed no obvious leakage of cell contents, and had an intact boundary between cells after freezing. These results indicate that the recombinant strain SF‐P 2 has a protective effect against freezing. This paper presents a food grade expression system for an antifreeze peptide SF‐P using L. lactis as a host, and shows that the intracellular expression of antifreeze peptide could protect the cellular integrity and physiological functions of L. lactis . Practical Application The recombinant Lactococcus lactis with intracellular expression of antifreeze peptides SF‐P could reduce the damage of bacteria cells induced by freezing or freeze drying, so, it could be applied in the process of freezing food without separation, such as the manufacture of yoghurt ice cream, frozen dough, and so on.
    Type of Medium: Online Resource
    ISSN: 0022-1147 , 1750-3841
    URL: Issue
    URL: Article
    DOI: 10.1111/jfds.2018.83.issue-5
    DOI: 10.1111/1750-3841.14117
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2006705-7
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  • 9
    Online Resource
    Online Resource
    PCR detection for syphilis diagnosis: Status and prospects
    Wiley ; 2019
    In:  Journal of Clinical Laboratory Analysis Vol. 33, No. 5 ( 2019-06)
    Details
    In: Journal of Clinical Laboratory Analysis, Wiley, Vol. 33, No. 5 ( 2019-06)
    Abstract: Syphilis, a re‐emerging public health problem worldwide caused by Treponema pallidum subsp pallidum (T. pallidum ), usually induces systemic and chronic inflammation in hosts who do not receive timely therapy after exposing to high‐risk factors such as leprous sexual contact. Before the treatment, rapid and accurate detection of syphilis is essential. However, the existing detection methods, which focus on the treponemal or non‐treponemal antibody test, both have inherent limitations. For instance, both of them cannot distinguish the stage and severity of syphilis. Non‐treponemal test such as RPR, which is generally deemed to be used for assessing treatment response, is influenced by biological false positives. Therefore, it is imperative to seek out a new and effective diagnostic test. With recent advancements in molecular biology and whole‐genome sequencing, the molecular diagnosis has increased in popularity, especially the use of polymerase chain reaction (PCR). Here, we firstly present a mini‐review on the research of PCR detection methods used for syphilis diagnosis over the past decade, and we then compare these methodologies to assess their potential and the challenges faced. This information can provide a fresh perspective to help researchers address the current challenges.
    Type of Medium: Online Resource
    ISSN: 0887-8013 , 1098-2825
    URL: Issue
    URL: Article
    DOI: 10.1002/jcla.2019.33.issue-5
    DOI: 10.1002/jcla.22890
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2001635-9
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  • 10
    Online Resource
    Online Resource
    Study on the Compatibility of Tetraethylammonium Decahydrodecaborate (BHN) with some Energetic Components and Inert Materials
    Wiley ; 2013
    In:  Propellants, Explosives, Pyrotechnics Vol. 38, No. 2 ( 2013-04), p. 278-285
    Details
    In: Propellants, Explosives, Pyrotechnics, Wiley, Vol. 38, No. 2 ( 2013-04), p. 278-285
    Abstract: The compatibility of tetraethylammonium decahydrodecaborate (BHN) with some energetic components and inert materials of solid propellants was studied by DSC method, where glycidyl azide polymer (GAP), cyclotrimethylenetrinitramine (RDX), cyclotetramethylenetetranitroamine (HMX), lead 3‐nitro‐1,2,4‐triazol‐5‐onate (NTO‐Pb), hexanitrohexaazaisowurtzitane (CL‐20), 3,4‐dinitrofurzanfuroxan (DNTF), N ‐guanylurea‐dinitramide (GUDN), aluminum powder (Al, particle size=12.18 μm) and magnesium powder (Mg, particle size: 44–74 μm) were used as energetic components and polyoxytetramethylene‐co‐oxyethylene (PET), polyethylene glycol (PEG), addition product of hexamethylene diisocyanate and water (N‐100), hydroxyl terminated polybutadiene (HTPB), cupric adipate (AD‐Cu), cupric 2,4‐dihydroxy‐benzoate ( β ‐Cu), lead phthalate ( ϕ ‐Pb), carbon black (C. B.), aluminum oxide (Al 2 O 3 ), 1,3‐dimethyl‐1,3‐diphenyl urea (C 2 ), di‐2‐ethylhexyl sebacate (DOS) and potassium perchlorate (KP), were used as inert materials. It was concluded that the binary systems of BHN with NTO‐Pb, CL‐20, aluminum powder, magnesium powder, PET, PEG, N‐100, AD‐Cu, β ‐Cu, ϕ ‐Pb, C. B., Al 2 O 3 , C 2 , DOS, and KP are compatible, and systems of BHN with GAP and HMX are slightly sensitive, and with RDX, DNTF, and GUDN are incompatible. The impact and friction sensitivity data of BHN and BHN in combination with the energetic materials under present study were obtained, and there was no consequential affiliation between sensitivity and compatibility.
    Type of Medium: Online Resource
    ISSN: 0721-3115 , 1521-4087
    URL: Issue
    URL: Article
    DOI: 10.1002/prep.v38.2
    DOI: 10.1002/prep.201100109
    Language: English
    Publisher: Wiley
    Publication Date: 2013
    detail.hit.zdb_id: 1481105-4
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