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 Indian J Med Microbiol  
 

Figure 2: Important milestones in the history of water purification (1800-2007) from the perspective of Noble metal nanoparticles in water treatment (compiled from multiple sources in World Wide Web)

Figure 2: Important milestones in the history of water purification (1800-2007) from the perspective of Noble metal nanoparticles in water treatment (compiled from multiple sources in World Wide Web)