Luminous materials

For the purposes of the present book, we have chosen to speak of atomically luminous, material dust, so precious it seems to us. It is the material frame of beings and structured things, of flesh, birds and stars. Let us not yet provoke the incomprehensible darkness as it lies sleeping in its den. Let us leave in shadow this matter which does not speak the language of light. 

Some technologies for nanocrystalline photonic materials have been introduced, some in detail. One of the attractive points of nanocrystals in other fields of materials is that the resultant optical properties are very predictable. This enables us further to design new luminous materials. 

In view of these facts it is perhaps not so surprising that many organisms have mastered the ability to channel the energy released in an oxygenation reaction into light emission. Attempts to extract luminous materials from organisms date from the last century when the French physiologist, DuBois, in 1887 prepared both a cold-water extract and a hot-water... 

Moghissi, A.A, Carter, M.W., Simpson, R.E. et al.. Evaluation of public health implications of radio-luminous materials. In Radioactivity in Consumer Products, pp. 256-276. NUREG/CP-001, 1978. 

Two mechanisms have been proposed to explain the transport of phospholipids from the ER to other cellular membranes protein-mediated transfer and a vesicular process. Several experiments have demonstrated that water-soluble proteins, known as phospholipid exchange proteins, can bind to specific phospholipid molecules and transfer them to another bilayer. Vesicular transport of phospholipids and membrane proteins in structures known as transition vesicles from the ER to the Golgi complex is not clearly understood. However, evidence of transfer of luminal material from the ER to the Golgi cistemae clearly supports vesicular transport. 

Systems that enhance drug absorption do not always contain ingredients that act on the epithelial membrane (increased membrane permeability) but act by other mechanisms, such as by increasing the solubility, changing pH at the absorption site or decreasing the binding to luminal material. The result of the enhancement is then an increased force in the absorption process, i.e., the effective concentration at the absorption site. Some examples in the literature of enhancers can be seen in Table 4.9. 

J. F. Dryer, USA, develops a luminous material suitable for use in instrument boards of automobiles, airplanes, etc., made by adding fluorescent dye to a urea-formaldehyde varnish and impregnating the fabric body sheet with it. 

Chromaticity diagram n. CIK A two-dimensional graph of the chromaticity coordinates, x as the abscissa and y as the ordinate, which shows the spectrum locus (chromaticity coordinates of monochromatic light, 380-770 nm). It has many useful properties for comparing colors of both luminous and non-luminous materials. 

The luminous materials contain a large number of molecules, atoms, or ions forming a regular lattice structure. Thus, the electrons are located in a periodic... 

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