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This book provides an overview of the design, synthesis, and characterization of different photoactive hybrid organic-inorganic materials, based on the combination of mainly organic molecules and inorganic nanostructures, tackling their uses in different scientific fields from photonics to biomedicine. There are many examples extensively describing how the confinement of organic compounds (i.e. chromophores, photochromic molecules or photoreactants), or other photoactive compounds (i.e.metal clusters) into several microporous systems can modulate the photophysical properties and photochemical reactions leading to interesting applications. Among (ordered)-hosts, different systems of diverse nature are widely used, such as the, the 1D- or 3D- channels of zeolitic frameworks, interlayer space of 2D-clays, the organic nanospace of curcubituril and cyclodextrins or the organo-inorganic porous crystalline MOFs systems. This volume highlights the advances of these photoactive materials and aims to be an inspiration for researchers working in materials science and photochemistry, including chemists, material engineers, physicists, biologists, and medical researchers.
Nitrosoureas: Current Status and New Developments covers the preclinical and clinical status of nitrosoureas. The book presents preclinical studies on the development of the nitrosoureas; combination chemotherapy with nitrosoureas plus other anticancer drugs against animal tumors; EORTC studies with novel nitrosoureas; and chemical decomposition of chloroethylnitrosoureas. The text also includes preclinical studies on the metabolism of nitrosoureas; DNA crosslinking and the origin of sensitivity to chloroethylnitrosoureas; modification of DNA and RNA bases; and carbamoylating activity of nitrosoureas. Clinical studies on subacute and chronic toxicities associated with nitrosourea therapy; th...
Icons in Time, Persons in Eternity presents a critical, interdisciplinary examination of contemporary theological and philosophical studies of the Christian image and redefines this within the Orthodox tradition by exploring the ontological and aesthetic implications of Orthodox ascetic and mystical theology. It finds Modernist interest in the aesthetic peculiarity of icons significant, and essential for re-evaluating their relationship to non-representational art. Drawing on classical Greek art criticism, Byzantine ekphraseis and hymnography, and the theologies of St. Maximus the Confessor, St. Symeon the New Theologian and St. Gregory Palamas, the author argues that the ancient Greek conce...