Rubber gloves. Positive scientist holding pipette in left hand and dropping reagent into test tube while looking at camera - Stock Photo & Image

Concentrate on process. Delighted practitioner expressing positivity and bowing head while looking downwards, doing experiment

Professional research. Selective focus of laboratory equipment being used for doing a professional research

Using microscope. Attentive bearded man expressing positivity while working in laboratory and looking forward

Let me see. Confident male scientist sitting at a microscope and looking at a set of test tubes with different liquids while working in a lab.

Future breakthrough. Selective focus on a test tube and pipette used by a mature gentleman working in a lab and conducting an experiment.

Daily routine. Low angle shot of a mature gentleman using a pipette while mixing chemical liquids and conducting chemical experiment.

Lets do experiment. Profile picture of competent scientist that pressing lips while taking test tube

Male portrait. Handsome professor keeping smile on his face and standing in semi position while looking straight at camera

Precise glance. Serious researcher raising hands while checking reagent in test tube

Sure hand. Concentrated researcher keeping his mouth opened and sitting at workplace while doing analysis.

Pouring down. Attractive medical worker wearing white smock and blue rubber gloves bowing head while looking at test-tube

Close to hand. Delighted scientist opening his mouth and wearing protective glasses while looking at chemical reagent