Covalent guest-framework interactions in heavy metal sodalites: structure and properties of thallium and silver sodalite

Article Abstract:

The cause of distinct structural characteristics in anhydrous sodalites Ag6(AlSiO4)6 and Tl6(AlSiO4)6 that differ greatly from their alkali metal containing analogues has been discovered to be caused by covalent bonds between the heavy metal cations and the aluminosilicate framework. Interatomic distances, shifted IR bands, and a quadrupole coupling of aluminum are some of the evidence of guest-framework bonding interactions. A reduction of the unit cell size and a locked in static disorder of the cations is a result of the bonding.

Cations, Aluminum silicates, Heavy metals, Thallium

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Patterned block-copolymer-silica mesostructure as host media for the laser dye rhodamine 6G

Article Abstract:

The development of patterned microlaser arrays formed from rhodamine 6G (R6G)-doped mesotructured silica using the amphiphilic triblock copolymer is presented. The results concluded that the high quality mesostructured waveguides can be prepared rapidly by combining soft lithographic methods with acidic solgel chemistry in the presence of structure-directing amphiphilic triblock copolymers.

Industrial sand, Silica & Silica Sand, Industrial Sand Mining, Silica, Structure, Copolymers

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Significance of charge regulation in the analysis of protein charge ladders

Article Abstract:

The analysis of protein charge ladders using capillary electrophoresis (CE) provides a method of determining charges of proteins. The difference in charge, deltaZ, between the first two rungs of ladder of bovine carbonic anhydrase I I (BCAII) as a function of pH and ionic strength using CE is examined

Science & research, Analysis, Proteins, Electrophoresis, Chemistry, Physical and theoretical, Physical chemistry, Atomic properties

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