In Situ Synthesis of Silver Nanoparticles on Cellulose Fibers Using D-Glucuronic Acid and Its Antibacterial Application.

The development of ecofriendly procedures to avoid the use of toxic chemicals for the synthesis of stable silver nanoparticles (AgNPs) is highly desired. In the present study, we reported an eco-friendly and green technique for in situ fabrication of AgNPs on bleached hardwood pulp fibers (bhpFibers) using D-glucuronic acid as the only reducing agent. Different amounts of D-glucuronic acid were introduced and its effect on the size and distribution of AgNPs on the bhpFibers was discussed. The morphology and structures of bhpFibers@AgNPs were proved by electron microscope-dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS). Then, a series of bhpFibers@AgNPs with different AgNPs loadings were also prepared by adjusting the concentration of the AgNO3 solution. After a papermaking process via vacuum filtration, the prepared papers displayed an outstanding antibacterial performance against Escherichia coli (gram -negative) and Staphylococcus aureus (gram-positive). It is foreseeable that the bhpFibers@AgNPs have a promising application in the field of biomedical.

Factors associated with the attitudes of oncology nurses toward hospice care in China.

OBJECTIVE: To examine factors that are associated with the apprehension levels of oncology nurses toward hospice care. Factors examined in this study included demographics, nursing experience, education levels, title and post, personal experiences, and attitudes toward end-of-life care. METHODS: Questionnaires were provided to nurses (n=201) from three first-tier hospitals in China. A quantitative scale, Professional End-of-life Care Attitude Scale (PEAS), was used to assess personal and professional apprehension levels toward hospice care. The PEAS was translated to Chinese with terms adapted to the cultural environment in China. Statistical analyses were performed to examine the relationships between the apprehension levels and various factors. RESULTS: The total PEAS scores exhibited internal consistency and reliability, with a Cronbach α=0.897 and Pearson's r=0.9030. Of the 201 nurses, 184 provided a valid response (91.5%). Education level was significantly correlated with personal (P<0.01) and professional apprehension levels (P<0.05). Higher apprehension level was found in nurses with less education. CONCLUSION: The PEAS quantitative survey is useful for evaluating apprehension levels of nurses toward hospice care. Nurses with more education experienced less anxiety when providing care for terminally ill patients. The findings suggested that education programs on hospice care could be strengthened to help nurses cope with negative attitudes toward end-of-life care.