XPost: sci.chem   
   From: a202010@lycos.com-   
      
   Salmon Egg wrote:   
      
   >  Timothy Sutter wrote:   
      
   > > whereas, you wouldn't say that there was anything   
   > > about the -cloth- that comntributed to the color   
   > > of the dye, at all.   
      
   > > so, any analogy would probably be centered around   
   > > the case of a sensitizer/activator where the sensitizer   
   > > could be said to be behaving somewhat like an auxochrome   
   > > in the overall crystal system.   
      
   > > if you just have an activator and no sensitizer,   
   > > there doesn't seem to be any real similarity at all.   
      
   > This whole subject may be very complex. As a kid I was greatly impressed   
   > at the New York World Fair when a Dupont scientist dipped a piece of   
   > cloth into a dye solution and took out a multicolored flag.   
      
   i'm betting the cloth was treated beforehand.   
      
      
   > There also is a strong interaction of stains with the structures of cell.   
   <...>   
   > Such energy transfer may also have something> to do with initiating cancer.   
      
   yeah, and someone would probably like to get a peculiar stain   
    that sought out peculiar structures, like, say, a cancerous   
   region and carry a cancer anihilating sidekick along for the ride.   
      
   so, the stain seeks out the cancer, and the sidekick   
   chops up the cancer, and only the cancer, and doesn't   
   chop  up 'healthy' cells.   
      
      
   > Dyes are   
   > used to make photographic emulsion sensitive to longer wavelengths than   
   > the would be without them. Somehow infrared energy absorbed by the dye   
   > gets transferred to the silver halide. That would make the dye the   
   > sensitizer and the halide crystal the activator in fairly close analogy   
   > with luminescent crystals.   
      
   > I think there may be an underlying similarity that I do not know but   
   > which could be userful.   
      
      
   like somehow the conjugated pi cloud is mimicking   
   the behavior of metallic d and f orbital transitions.   
      
   attenuate and antenna are related somehow   
      
   and attenuating the 'homo/lumo gap' is probably   
   quite simiar to the bahavior of rabbit ears   
      
      
   it could be...   
      
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