eppendorf tube with blue liquid in the hand of scientist on the background of petri dishes for microchemical analysis

chemistry analytic bacterium technology bacteriology hand microorganism microbiology scientific analysis experiment lab antimicrobial liquid virus glass science health microbe background colony biology medicine microchemical culture test sterile eppendorf focus research glassware pharmacy dishes biochemistry hygiene pharmaceutical blue study bacterial petri agar selective disease scientist laboratory chemical dish medical plate analyzing tube biotechnology genetics biologist