Publications by authors named "Zhang Zequan"

Article Synopsis
  • All-inorganic metal halide perovskite shows potential for highly efficient and thermally stable light-emitting diodes, but film quality needs improvement due to issues like low coverage and high trap density.
  • The introduction of lead acetate (Pb(Ac)) into the precursor solution enhances perovskite film quality, resulting in larger surface coverage and fewer traps, which boosts photoluminescence intensity.
  • This method also improves energy level alignment with the hole-injection layer, reducing the required turn-on voltage and increasing the external quantum efficiency of sky blue PeLEDs significantly.
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Bisphenol S (BPS) is an alternative chemical to bisphenol A commonly used in food packaging materials. It raises concerns due to potential adverse effects on human health. However, limited evidence exists regarding reproductive toxicity from BPS exposure, and the mechanism of associated transgenerational toxicity remains unclear.

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Objective:: To evaluate the efficacy and safety of Shengmai Yin (生脉饮, SMY) on visual analogue scale (VAS) for cardiopulmonary symptoms in coronavirus disease 2019 (COVID-19) convalescent patients.

Methods:: In this randomized, double blind and multicenter controlled trial, a total of 200 COVID-19 convalescent patients who with cardiopulmonary symptoms were enrolled from three medical centers in Hubei, China. These patients were randomized divided into trial group and the control group, 100 patients in each one, SMY and its placebo were applied to respectively, for two weeks.

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Rationale: Schwannoma is a tumor of the peripheral nervous system that originated in the Schwann cells of the neural sheath. Esophageal schwannomas are rare esophageal submucosal tumors, comprising approximately 2% of esophageal tumors. Since the symptoms, signs, and images of esophageal schwannoma are not specific, its preoperative diagnosis remains challenging.

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Titanium (Ti) and its alloys are widely applied as orthopedic implants for hip and knee prostheses, fixation, and dental implants. However, Ti and its alloys are bioinert and susceptible to bacteria and biofilm formation. Thus, surface biofunctionalisation of Ti is essential for improving the biofunction of Ti.

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Article Synopsis
  • Biomaterial surface topography significantly influences how implants integrate with bone by affecting early cell responses and tissue development, with this study focusing on macrophage behavior rather than just osteogenic cells.
  • * The research found that macrophages on patterned titanium coatings showed a preference for the anti-inflammatory M2 polarization, leading to increased expression of anti-inflammatory genes compared to those on traditional coatings, which leaned towards the pro-inflammatory M1 polarization.
  • * Patterned titanium surfaces not only promoted better macrophage behavior but also enhanced osteogenic activity in bone marrow stem cells, suggesting that using patterned surfaces can improve the immune response and support bone healing around implants.
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Immune systems play pivotal roles in determining the in vivo osseointegration of bone implants. While much evidence has shown that hierarchical implant surfaces can exhibit excellent osteogenic ability, their immune response has not been well elucidated, which will preclude accurate knowledge of their osseointegration performance. In this study, the immunomodulatory properties of a hierarchical macropore/nanosurface as well as the detailed mechanism was investigated.

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Hierarchical structure mimicking the natural bone microenvironment has been considered as a promising platform to regulate cell functions. We have previously fabricated hierarchical macropore/nanowire structure and evidence has shown that it can better manipulate the cytoskeleton status and osteogenic performance of osteoblasts. However, how cues of hierarchical structure are translated and ultimately linked to BMSC lineage commitment have still remained elusive, which hinders the accurate knowledge and further development of the hierarchical structure.

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