Portrait en gros plan d'un scientifique chevronné barbu travaillant au microscope et regardant la caméra - Photo & image de stock

Professional chemists in white coats working with microscopes in laboratory and looking at camera

Professional researcher testing a sample in the laboratory, he is holding a test tube, medical and scientific reasearch concept

Two scientists in white coats working together with microscope in chemical laboratory

Professional medical researcher working in the laboratory, he is examining samples

Professional researcher testing a sample in the laboratory, he is holding a test tube, medical and scientific reasearch concept

Young, microbiologist and his colleagues are sitting in a modern laboratory

Young, microbiologist and his colleagues are sitting in a modern laboratory

Professional researcher testing a sample in the laboratory, he is holding a test tube, medical and scientific reasearch concept

Smiling chemist in protective eyeglasses holding test tube with reagent in lab

Professional scientist in protective eyeglasses making experiment with reagents in test tubes

Concentrated bearded scientist working with microscope and laptop in laboratory

Concentrated bearded chemist in goggles with reagents in tubes in laboratory

Bearded teacher holding flask while little student looking in microscope

Portrait of focused scientist using microscope while working with reagents in lab

Smiling bearded teacher and serious little student making experiment in lab

Bearded chemist in goggles with reagents in tubes and tablet in laboratory

Professional scientist in protective eyeglasses making experiment with reagents in test tubes