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  • IOP Publishing  (6)
  • 2020-2024  (6)
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  • IOP Publishing  (6)
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  • 2020-2024  (6)
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  • 1
    Online Resource
    Online Resource
    Effects of pressure and height on printability for soft materials
    IOP Publishing ; 2023
    In:  Journal of Physics: Conference Series Vol. 2483, No. 1 ( 2023-05-01), p. 012023-
    Details
    In: Journal of Physics: Conference Series, IOP Publishing, Vol. 2483, No. 1 ( 2023-05-01), p. 012023-
    Abstract: Extrusion-based printing with soft materials is an additive manufacturing technology, which is widely used in biomedical fields such as skin reconstruction, muscle repair, and cartilage regeneration, etc. Constructing high-precision printed structures and maintaining high cellular bioactivity are key issues in the in vitro construction of tissues and organs using extrusion bioprinting. There are some printing paraments such as pressure, height, nozzle type (eg, length and inner diameter), translational speed, etc . can have a huge influence on the structural fidelity. In this work, we put forward a quantitative test method to evaluate the printing accuracy is influenced by pressure and height. The results show that higher pressure can benefit uniformity (the filament width is equal everywhere), and higher height leads to higher uniformity only in low pressure for paste. This study can provide researchers with the tunning suggestions of printing paraments, which may promote the development of printing accuracy in the future.
    Type of Medium: Online Resource
    ISSN: 1742-6588 , 1742-6596
    URL: Article
    DOI: 10.1088/1742-6596/2483/1/012023
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2023
    detail.hit.zdb_id: 2166409-2
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Effect of microalloying with Ca and Al on the microstructure, mechanical and corrosion properties of the ZM60 alloy
    IOP Publishing ; 2020
    In:  Materials Research Express Vol. 6, No. 12 ( 2020-02-12), p. 1265j3-
    Details
    In: Materials Research Express, IOP Publishing, Vol. 6, No. 12 ( 2020-02-12), p. 1265j3-
    Type of Medium: Online Resource
    ISSN: 2053-1591
    URL: Article
    DOI: 10.1088/2053-1591/ab6da9
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2020
    detail.hit.zdb_id: 2760382-9
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Recent progress on charge-reversal polymeric nanocarriers for cancer treatments
    IOP Publishing ; 2021
    In:  Biomedical Materials Vol. 16, No. 4 ( 2021-07-01), p. 042010-
    Details
    In: Biomedical Materials, IOP Publishing, Vol. 16, No. 4 ( 2021-07-01), p. 042010-
    Abstract: Nanocarriers (NCs) for delivery anticancer therapeutics have been under development for decades. Although great progress has been achieved, the clinic translation is still in the infancy. The key challenge lies in the biological barriers which lie between the NCs and the target spots, including blood circulation, tumor penetration, cellular uptake, endo-/lysosomal escape, intracellular therapeutics release and organelle targeting. Each barrier has its own distinctive microenvironment and requires different surface charge. To address this challenge, charge-reversal polymeric NCs have been a hot topic, which are capable of overcoming each delivery barrier, by reversing their charges in response to certain biological stimuli in the tumor microenvironment. In this review, the triggering mechanisms of charge reversal, including pH, enzyme and redox approaches are summarized. Then the corresponding design principles of charge-reversal NCs for each delivery barrier are discussed. More importantly, the limitations and future prospects of charge-reversal NCs in clinical applications are proposed.
    Type of Medium: Online Resource
    ISSN: 1748-6041 , 1748-605X
    URL: Article
    DOI: 10.1088/1748-605X/abffb5
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2021
    detail.hit.zdb_id: 2233169-4
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    Online Resource
  • 4
    Online Resource
    Online Resource
    The regulation of three gorges dam on lake Poyang: an assessment of the lake water level change during the dry season
    IOP Publishing ; 2020
    In:  IOP Conference Series: Earth and Environmental Science Vol. 569, No. 1 ( 2020-09-01), p. 012065-
    Details
    In: IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 569, No. 1 ( 2020-09-01), p. 012065-
    Abstract: With a combination of field data analysis and numerical simulation on 2D river-lake hydrodynamics, this study focuses on the water level change in Lake Poyang regulated by the Three Gorges Dam (TGD) during the dry season. Based on the long-term measured water level series (1956-2012), after the completion of TGD, the dry season in Lake Poyang is promoted to start early, and its duration is extended. With the regulation of TGD during the impoundment period, more outflow from Lake Poyang pours into the Yangtze River, leading to the decrement of lake water level and an earlier occurrence (about 4-5 days forward) of the dry season. Besides, with the regulation of TGD during the flushing period, the water level in Lake Poyang is elevated, making a relief to the lake drought during the dry season.
    Type of Medium: Online Resource
    ISSN: 1755-1307 , 1755-1315
    URL: Article
    DOI: 10.1088/1755-1315/569/1/012065
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2020
    detail.hit.zdb_id: 2434538-6
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    Online Resource
  • 5
    Online Resource
    Online Resource
    The improvement of endurance characteristics in a superlattice-like material-based phase change device
    IOP Publishing ; 2023
    In:  Semiconductor Science and Technology Vol. 38, No. 4 ( 2023-04-01), p. 045008-
    Details
    In: Semiconductor Science and Technology, IOP Publishing, Vol. 38, No. 4 ( 2023-04-01), p. 045008-
    Abstract: Improvement of endurance characteristics has been a hot area of phase-change memoryresearch. The properties of a phase-change material are believed to play an important role in device endurance. Repeated SET–RESET operation always leads to material failure problems, such as composition deviation and phase separation. Moreover, the quality of the electrode and the electrode contact also determine the endurance characteristics. In this study, C nanolayers were periodically inserted into the phase-change material Ge 2 Sb 2 Te 5 (GST) to fabricate a superlattice-like (SLL) structure. Although some of C bonded with some of the Ge, Sb and Te atoms, more C atoms prefer nanometer-scale clusters at the grain boundary in the SLL film. The typical local configuration of GST was unchanged when artificial C nanolayers were inserted. Transmission electron microscopy experiments revealed that the bonded C atoms and nanometer-scale C clusters may occupy the spontaneously created holes and defects, preventing composition deviation of the phase-change material and prolonging the electrode service life. The contact surface between the phase-change material and the electrode is also improved. As a result, we found that the endurance cycle could be improved by up to 10 6 for a GST/C SLL film-based device.
    Type of Medium: Online Resource
    ISSN: 0268-1242 , 1361-6641
    URL: Article
    DOI: 10.1088/1361-6641/acba3c
    RVK:
    UA 7761
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2023
    detail.hit.zdb_id: 54647-1
    detail.hit.zdb_id: 1361285-2
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    Online Resource
  • 6
    Online Resource
    Online Resource
    Microstructure and texture evolution of ultra-thin high grade non-oriented silicon steel used in new energy vehicle
    IOP Publishing ; 2022
    In:  Materials Research Express Vol. 9, No. 9 ( 2022-09-01), p. 096515-
    Details
    In: Materials Research Express, IOP Publishing, Vol. 9, No. 9 ( 2022-09-01), p. 096515-
    Abstract: The evolutions of microstructure and texture of ultra-thin high-grade non-oriented silicon steel for new energy vehicles were investigated in this paper, and the formation mechanism of typical recrystallized α *-fiber texture was described. The results show that: The microstructure of the hot rolled plate was inhomogeneous along the thickness direction because of the shear force and temperature gradient, resulting in the texture in each layer of the hot rolled plate appearing rotational distribution around the Goss orientation. After normalizing, the fully recrystallized microstructure was obtained, and α *-fiber texture was formed. Banded structure was obtained in the cold rolled sheet, with α -fiber texture {114}〈110〉 dominated. The typical α *-fiber texture was formed after annealing recrystallization, which mainly consist of {114} 〈 481  〉  and {113} 〈 361 〉 . The {114} 〈 481  〉  oriented grains were mainly nucleated within the deformed {114} 〈 110  〉  grains and at the grain boundaries of α -fiber deformed grains, and without size, quantity and strength advantages. {111} 〈 112  〉  is dominated in the early stage of recrystallization, but {114} 〈 481  〉  became the main texture with size, strength and quantitative advantages in the late stage of recrystallization.
    Type of Medium: Online Resource
    ISSN: 2053-1591
    URL: Article
    DOI: 10.1088/2053-1591/ac9119
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2022
    detail.hit.zdb_id: 2760382-9
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    Online Resource
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