Efficient Near-Infrared Response Antibacterial Ceramics Based on the Method of Facile In Situ Etching Upconversion Glass-Ceramics.

As the world is faced with the coronavirus disease 2019 (COVID-19) pandemic, photocatalytic antibacterial ceramics can reduce the consumption of disinfectants and improve the safety of the public health environment. However, these antibacterial ceramics are often limited by poor stability and low light utilization efficiency. Herein, an antibacterial ceramic was developed via the method of facile in situ etching of upconversion glass-ceramics (UGC) (FIEG) with HCl, in which the BiOCl nanosheets were in situ grown on the surface of GC to improve its stability and antibacterial activity. The results suggest that the upconversion antibacterial ceramics can harvest and utilize near-infrared (NIR) photons efficiently, which display notable antibacterial activity for Escherichia coli (E. coli) under NIR (≥780 nm) and visible light (420-780 nm) irradiation, with a maximum inactivation rate of 7.5 log in 30 min. Meanwhile, in the cycle experiment, more than 6 log inactivation of E. coli was achieved using an antibacterial ceramic sheet after 2-h NIR light irradiation, and the stability of the antibacterial ceramic was discussed. Furthermore, the reactive species, fluorescence-based live/dead cells, and cell structure of bacteria were analyzed to verify the antibacterial mechanism. This study provides a promising strategy for the construction of efficient and stable antibacterial ceramics.

Teacher Entrepreneurship, Co-Creation Strategy, and Medical Student Entrepreneurship for Sustainability: Evidence from China

The volatile and changing healthcare landscape, heavily influenced by the COVID-19 pandemic and other contemporary crises, poses challenges to the sustainable development of medical education, and integrating innovation and entrepreneurship into medical education is the avenue by which to address the current and future medical challenges. Medical student entrepreneurship education (MSEE) contributes to the individual and social sustainable development of students in terms of their future careers. To investigate the effect of teacher entrepreneurship on MSEE, a hypothesis model of MSEE that includes teachers' entrepreneurial competence (TEC), teachers' entrepreneurial behaviors (TEB), and co-creation strategy (CCS) was constructed on the basis of symbolic interactionism. A total of 714 samples were collected from entrepreneurial teachers in Chinese medical universities for quantitative analysis. This study confirmed our hypothesis that TEC and TEB have a positive and statistically significant direct impact on MSEE. As demonstrated in the mediation effect test, when CCS was added as the mediating variable, TEC and TEB had a statistically significant indirect effect on MSEE. With empirical evidence from China, the study provided a new perspective for deepening the research on MSEE and laid the foundation for interdisciplinary research on medical education and entrepreneurship education. The findings contribute to entrepreneurial learning and pedagogical practices in medical education for the sustainable development of medical students.