Organized assemblies and heterogeneous systems

Radiolysis was found to be a useful tool in the synthesis of nanoparticles. Henglein and coworkers and Belloni and coworkers prepared many metallic (and pre-metallic) particles of a large variety of compositions over the last two decades. Both groups were able to show size dependence of the redox potential of the metallic ion/metallic atom (or cluster) couples from single atoms to relatively large clusters (94-97). Commonly the synthesis involves radiolytic reduction of metal ions in aqueous solutions but radiolytic production of silver particles was recently achieved in supercritical fluids as well (98). The particles produced by radiolytic reduction of the ions can be designed to assume a variety 

The fundamental nature of the studies described above find applications in many other technologies. To cite a few examples, the growth of silver seeds 

Acknowledgement This work is supported by the US Department of Energy, Office of Basic Energy Sciences. This is contribution NDRL No. 4272 from The Notre Dame Radiation Laboratory. 

Radiation Chemistry Present Status and Future Trends 2001 Elsevier Science B.V. 

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