Papers by Keyword: Silver Halides

Abstract: The paper presents a set of methods developed for properties control of new optical crystals based on solid solutions of silver and thallium (I) halides. Crystals and optical products based on them are used for optical and optoelectronic systems in the middle and far infrared range. In this regard, to analyze the properties of new infrared materials, new analysis methods are required, which provide high accuracy and repeatability of the results. The authors have developed methods for studying the optical, mechanical and electrical properties of materials. The studies’ results carried out by these methods for various systems of silver and thallium (I) halides solid solutions are presented.

Abstract: Silver halides represent a yet unexplored avenue for imparting antimicrobial activity in calcium phosphates. Silver halide colloids were added to calcium phosphate. Concurrent melting of silver halides and crystallization of carbonated apatite was achieved by heating to increase the silver halide surface area available to bacteria.Pseudomonas aeruginosa were more sensitive to silver iodide and silver bromide than Staphylococcus aureus. Silver iodide demonstrated greater activity than silver bromide. Silver chloride did not produce an antibacterial response. Both amorphous calcium phosphate and carbonated apatite displayed similar antibacterial activity when accompanied by silver halides. It is thought that amorphous calcium phosphate dissolves more readily and increases the bioavailability of the silver halide particles. Silver iodide displays a greater antibacterial response of all silver halides, with a response that is improved in a more resorbable matrix.