Fig. 9From: Sustainable microbial cell nanofactory for zinc oxide nanoparticles production by zinc-tolerant probiotic Lactobacillus plantarum strain TA4Comparison of FT-IR spectral analysis of L. plantarum strain TA4 (c). The black vibrational lines indicate the control of cell biomass (unexposed to Zn2+) and the red line indicate the cell biomass exposed to Zn2+Back to article page