Sol-gel glasses, organically modified

Schmidt H., Philip G., Patzelt H., Scholze H. Glass sealings by sol-gel derived organically modified silicate. In Collected Papers XTV Int. Congr. on Glass, Vol. 2. Indian Ceramic Society, 1986, pp. 429 36... 

In recent years, silica sol-gel-based inorganic-organic hybrid materials have also been reported. The introduction of various functional groups into organic alkoxide has led to organically modified sol-gel glasses (ormosils). Some of the ormosil monomers and ormosil formations can be found in Fig. 16.3. Redox molecules can be coupled with the ormosil monomer functional group. The immobilized redox molecules can... 

Remarkably analogous findings have been established in recent years from the study of a number of catalytic species entrapped in sol-gel glasses. In particular, molecular entrapment in hybrid organic-inorganic ceramic matrices such as organically modified silicates resulted in... 

The spectral behavior and quantum yields of an ESDPT molecule [2,2 -bipyridyl]-3,3 -diol [BP(OH)2] (54) in sol-gel glasses modified by organic side groups were studied with the properties of BP(OH)2 in solutions, in a plain sol-gel glass and in PMMA [148], The fluorescence intensity of the dye in a fresh sol-gel glass is similar to that in water, whereas the corresponding blue shift is smaller and... 

Randey R. C., Upadhyay S., Rathak H. C., Randey C. M. D., and Tiwari I., Acetylthiocholine/acetylcholine and thiocholine/choline electrochemical biosensors/ sensors based on an organically modified sol-gel glass enzyme reactor and graphite paste electrode. Sens. Actuators B, 62(2), 109-116, 2000. 

Research is gradually shifting to more complex systems. For instance, very few studies on lanthanide complexes doped into pure silica sol gel glasses are still appearing, whereas present work is more concentrated on lanthanide complexes in organically modified silicates and especially on complexes covalently hnked to the host matrix. But the control of the lanthanide quantity inside the host matrices remains a challenge. 

New Organically Modified Sol-Gel Glasses and Their Applications in Sensors Construction... 

Another unique aspect of the sol-gel process in this context is the synthesis of Ormo-cers (organically modified ceramics)111. Different organic-inorganic sol-gel precursors have been used for this purpose for the development of new glasses with second-order nonlinearities257-261. In these materials, organic chromophores are chemically bonded... 

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