In Molecular Biology
An essentially identical procedure called "silver staining" is utilized in molecular biology to visualize DNA or proteins after gel electrophoresis, usually SDS-PAGE. The latent image is formed by the DNA or protein molecules (i.e. the reduced silver selectively precipitates onto those molecules). It is known for being nearly as sensitive as autoradiography, the "gold standard" technique, but one not widely used due to the use of radioactive materials.
Read more about this topic: Gelatin Silver Process
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