An in situ study on the coalescence of monolayer-protected Au-Ag nanoparticle deposits upon heating

The structural evolution of thiolate-protected nanoparticles of gold, silver, and their alloys with various Au/Ag ratios (3:1, 1:1, and 1:3) upon heating was investigated by means of in situ synchrotron radiation X-ray diffraction. The relationships between the coalescence and composition of nanoparticles, as well as the surfactant reactions, were clarified. Experimental results show that there existed a critical temperature ranging from 120°C to 164°C, above which the tiny broad X-ray diffraction peaks became sharp and strong due to particle coalescence. The coalescence temperatures for alloy nanoparticle deposits were clearly lower than those for pure metals, which can be ascribed to the rivalry between the thermodynamic effect due to alloying and the interactions between surface-assembled layers and the surface atoms of the nanoparticles. The strong affinity of thiolates to Ag and thus complex interactions give rise to a greater energy barrier for the coalescence of nanoparticles into the bulk and subsequent high coalescence temperature. The influences of particle coalescence on the optical and electrical properties of the nanoparticle deposits were also explored

Health-related quality of life and its related factors in patients with diabetes

Session presented on Sunday, July 26, 2015: Purpose: The purpose of this study was to explore the quality of life and its related factors in individuals with DM. Methods: A cross-sectional correlational study design was used. Using a purposive sampling approach, adult individuals with DM were invited to participate at this study. Participants were interviewed using the Taiwan-version Diabetes-39 questionnaire to assess their health-related quality of life. Demographic data were also collected. In addition, chart reviews were conducted to collect other disease-related information. Measures of central tendency were used to describe the profiles of participants; t-test Aone-way ANOVA and regression analyses were used to test hypotheses of this study. Results: Study found that the quality of life of participants were related to (a) age, (b) duration of DM, (c) level of education, (d)marital status, (e) living situation, (f) job status, (g) income status, (h) HBA1C, (i) treatment modalities and (j) complications. These factors explained 60.7% variance of DM related quality of life. Conclusion: The results of this study can provide health professionals to leaRNore about individuals with DM, their health-related quality of life and its related factors. Healthcare professionals may base on these understanding to provide holistic care to individuals with DM

Potassium {4-[(3S,6S,9S)-3,6-dibenzyl-9-isopropyl-4,7,10-trioxo-11–oxa-2,5,8-triazadodecyl]phenyl}trifluoroborate

[[abstract]]The reported compound 4 was synthesized and fully characterized by 1H NMR, 13C NMR, 11B NMR, 19F NMR, and high resolution mass spectrometry.[[booktype]]電子版[[countrycodes]]CH