Publications by authors named "Xin-Mei Hu"

Article Synopsis
  • Blue perovskite light-emitting diodes (PeLEDs) face challenges due to difficult production of high-quality mixed-halide perovskites with wide optical bandgaps, leading to high defect density.
  • A new strategy for nondestructive in-situ halide exchange helps create high-quality blue perovskites with low trap density by using long alkyl chain chloride in chloroform post-treatment.
  • This method improves efficiency in PeLEDs across the blue spectrum, achieving external quantum efficiencies of 23.6% (sky-blue), 20.9% (pure-blue), and 15.0% (deep-blue) emissions.
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Article Synopsis
  • Efficient and stable red perovskite light-emitting diodes (PeLEDs) show potential for high-definition displays and biomedical uses, but face issues with stability and efficiency for commercial viability.
  • A new crystallization regulation method using mixed vapors improves perovskite film quality, leading to better structural alignment and reduced surface defects.
  • The resulting red PeLEDs achieve impressive peak external quantum efficiencies (EQEs) of over 30% and longer operational lifetimes, marking significant progress towards their commercialization.
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Aims: Parkinson's disease (PD) is a common neurodegenerative disease that has received widespread attention; however, current clinical treatments can only relieve its symptoms, and do not effectively protect dopaminergic neurons. The purpose of the present study was to investigate the therapeutic effects of human umbilical cord mesenchymal stem cell-derived exosomes loaded with brain-derived neurotrophic factor (BDNF-EXO) on PD models and to explore the underlying mechanisms of these effects.

Main Methods: 6-Hydroxydopamine was used to establish in vivo and in vitro PD models.

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Article Synopsis
  • Perovskite light-emitting diodes (PeLEDs) are gaining interest due to their excellent optoelectronic properties, but challenges exist in understanding how carriers move and recombine during operation.
  • The study investigates how additives and interface engineering, particularly using polyethylene glycol (PEG), enhance device performance by creating stable nanocrystals and improving fluorescence lifespan in PeLEDs.
  • An electron transport layer made of PO-T2T improves carrier mobility and lowers the turn-on voltage, yet it comes with drawbacks like short decay times and instability, while lower temperatures negatively affect carrier mobility and transient response speed.
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Purpose: In recent years, exosomes have been proved to be used to treat many diseases. However, due to the lack of uniform quality control standards for exosomes, the safety of exosomes is still a problem to be solved, especially now more and more exosomes are used in clinical trials, and its non-clinical safety evaluation is particularly important. However, there is no safety evaluation standard for exosomes at present.

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Background: Rapid wound healing remains a pressing clinical challenge, necessitating studies to hasten this process. A promising approach involves the utilization of human umbilical cord mesenchymal stem cells (hUC-MSCs) derived exosomes. The hypothesis of this study was that these exosomes, when loaded onto a gelatin sponge, a common hemostatic material, would enhance hemostasis and accelerate wound healing.

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This study aims to compare the effectiveness of video and paper materials used for teach-back education on the first insulin injection for patients with diabetes. The study enrolled 110 patients hospitalized for diabetes who had received education on their first insulin injection in the endocrinology department. The patients were divided into an intervention group ( = 55) and a control group ( = 55) using convenience sampling.

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