Deep eutectic solvents (DESs) exhibit dynamic heterogeneity, where the intricate and dynamic hydrogen bonding within the DES mediates dynamic spatial variation in the DES local environment. The Type III DES composed of choline chloride and glycerol (ChCl:Gly) exhibits this effect prominently, and we report on the observed local organization and its dependence on system composition using the time-resolved reorientation dynamics of three illustrative chromophores of different polarities: perylene (neutral, nonpolar), oxazine 725 (cation, polar) and rose bengal (dianion, polar). Our findings demonstrate that the environments sensed by all three chromophores are markedly different than that predicted by the bulk viscosity of the DES, and that these local environments exhibit remarkably little change as the mole ratio of the DES constituents is varied.
View Article and Find Full Text PDFImprovement science has emerged as an interdisciplinary field of enquiry to provide methodological and scientific rigour to the practice and study of improvements in healthcare, and with contributions from a wide range of stakeholders and perspectives. However, compared to more well-established health-related sciences, the science of improvement remains in relative infancy. Whilst the improvement community has grown considerably, there is no existing articulation of the scope of what matters to the health and social care improvement community, and how this aligns to the enquiries of the field of improvement science.
View Article and Find Full Text PDFPyrogallol[4]arene (PgC) macrocycles, owing to their preorganized structures, are known to form dimeric (ML), hexameric (ML), and dodecameric (ML) nanocapsules, as well as coordination networks. However, the role of anions in the formation of varied geometries and stoichiometries of PgCs is understudied. In this study, we explore the assembly of pyrogallol[4]arene with strontium iodide, forming metal-organic nanotoroids (ML), and with strontium nitrate, which forms coordination networks.
View Article and Find Full Text PDFBackground: Despite active travel investment increasing, evidence of benefit is often limited to selected health outcomes and a short follow-up period, and cyclists and pedestrians are often analysed together. We aimed to examine prospective associations with multiple health outcomes over 18 years for pedestrians and cyclists separately.
Methods: The Scottish Longitudinal Study is based on census data, from which we selected 82 297 individuals aged 16-74 years.
Heavy water (DO) has found extensive application as a moderator in nuclear reactors. Additionally, it serves as a substitute for regular water (HO) in biological or spectroscopic experiments, providing a deuterium source and addressing challenges related to solvent opacity or contrast. This is particularly relevant in experiments involving neutron scattering, infrared absorption, or nuclear magnetic resonance.
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