2003-06-28
... ? Guardian Unlimited | Arts news | Bacterium restores glue-hidden frescoArt restorers in Pisa have found that a bacterium can do the job no chemical has managed to achieve: reveal part of a vast medieval fresco which was covered with a layer of glue during an unfortunate restoration attempt half a century ago. Scientists from Milan University have shown that the bacterium Pseudomonas stutzeri, applied with water on cotton wool, can eat through 80% of the glue in about 10 hours.
