The IHS monogram as a symbol of Catholic resistance in 17th century Ireland

It has been suggested that the presence of religious images and scenes in secular buildings of sixteenth-century date can be viewed as an expression of resistance by the native Irish to English colonial activity in the aftermath of the Munster Plantation (J. A. Delle, 1999, International Journal of Historical Archaeology 3: 11–35). Such images, however, may merely represent a continuation into the early modern period of a Medieval tradition of adorning secular houses with devotional images. If a religious symbol of native Catholic resistance to English colonization and Protestantism in Munster is to be sought then perhaps a more appropriate image would be the I.H.S. monogram—a symbol associated with the Counter Reformation and the Jesuits. The paper presents an example of the monogram located within a tower house at Gortnetubbrid in County Limerick, Ireland.

One-Pot, High-Yield Synthesis of Convex Au Octahedra by H2O2 - Mediated Process In Solution Phase

A simple, non-seeding and high-yield synthesis of convex gold octahedra with size of ca. 50 nm in aqueous solution is described. The octahedral nanoparticles were systematically prepared by reduction of HAuCl4 using ascorbic acid (AA) in the presence of cetyltrimethylammonium bromide (CTAB) as the stabilizing surfactant while concentrations of Au3+ were fixed. The synthesizing process is especially different to other wet synthesis of metallic nanoparticles because it is mediated by H2O2. Mechanism of the H2O2 – mediated process will be described in details. The gold octahedra were shown to be single crystals with all 8 faces belonging to {111} family. Moreover, the single crystalline particles also showed attractive optical properties towards LSPR that should find uses as labels for microscopic imaging, materials for colorimetric biosensings, or nanosensor developments.