Immigration and health : analysing local variations in healthcare access for immigrants in France

International audienc

Immigration and health : analysing local variations in healthcare access for immigrants in France

International audienc

«α-cyclodextrine : nouvel agent texturant pour la croissance de Zr-MOF»

National audienc

Hydrothermal synthesis of Zr-MOF : spectacular increase of the surface arrea using cyclodextrin as novel modulator

International audienc

Cyclodextrins: a New and Effective Class of Co-Modulators for Aqueous Zirconium-MOF Syntheses

Inspired by the effectiveness of cyclodextrin (CD) auxiliary agents in the design of nanocomposite materials, we hypothesized that the same approach can be employed in the controlled assembly of zirconium-based metal–organic frameworks (Zr-MOFs) of the UiO-66-X topology, in aqueous media. Native CDs (α-CD, β-CD and γ-CD) in different proportions were initially applied as co-modulators to the reaction mixture of the Zr6O4(OH)4(CH3COO)12 cluster zirconium precursor and the 2-aminoterephtalic acid linker, to assess their influence on the porous properties of the Zr-MOFs. Crystallinity and textural characteristics of the so-obtained materials were determined by means of X-ray diffraction and N2-sorption analysis. Even at low concentrations, γ-CD was shown to have a deleterious effect on the Zr-MOFs' specific surface area and their overall N2 sorption properties. Conversely, α-CD and β-CD aided synthesis of Zr-MOFs resulted in superior textural properties outperforming those obtained with classical hydrothermal syntheses, yielding a record surface area of SBET = 1451 m2 g−1, suggesting that these co-modulators efficiently participate in the growth of UiO-66-NH2. This effect is hereby rationalized through the different roles played by the CDs towards the reagents in the UiO-66-NH2 reaction mixture, and a reaction mechanism is proposed

Indigenous Narratives of Health: (Re)Placing Folk-Medicine within Irish Health Histories

With the increased acceptance of complementary and alternative medicine (CAM) within society, new research reflects deeper folk health histories beyond formal medical spaces. The contested relationships between formal and informal medicine have deep provenance and as scientific medicine began to professionalise in the 19th century, lay health knowledges were simultaneously absorbed and disempowered (Porter 1997). In particular, the ‘medical gaze’ and the responses of informal medicine to this gaze were framed around themes of power, regulation, authenticity and narrative reputation. These responses were emplaced and mobile; enacted within multiple settings by multiple agents and structures over time. The work is drawn from secondary material from Ireland, which identify more indigenous narratives of health and act as potential sources for medical humanities. While assumptions have been made as to the place of folk-medicine being essentially rural, evidence will be presented which shows a more complex network of health beliefs and practices. The narratives of informal practice and folk-medicine drawn from evidence from Ireland point to more fluid and hybrid relations with formal medicine and suggest that the complementary nature of the two models reflected wider cultural debates and models of belief (Del Casino Jnr., Health & Place 10:59-73, 2004)