Fig. 3From: Experimental and visual research on the microbial induced carbonate precipitation by Pseudomonas aeruginosa a Raman spectra of biomineralized calcium carbonate minerals in a P. aeruginosa biofilm. The highest Raman shift intensity appears at 1088 cm−1, indicating the presence of carbonate minerals. The primary peaks match those in a calcite standard spectrum (shown in b), indicating that the biomineralized deposits are calcite and not aragoniteBack to article page