Lo scienziato uomo concentrato esamina il liquido chimico nel pallone, seduto al tbale in laboratorio, soddisfatto del risultato dell'esperimento. Lo scienziato valuta la reazione chimica avvenuta - Foto e immagini stock

Mature Caucasian male doctor researcher carrying out scientific research in a lab, purifying red liquid from test tube into glass flask, using a microscope, laptop, sitting at the table.

Smiling Caucasian mature man scientist or doctor testing new drugs to prevent and destroy new strains of the virus or bacteria, holds glass flask. Pharmaceutical research and medicine concept

Caucasian concentrated male scientist doctor working in lab, doing research and making experiment, holding test tube with new vaccine sample or drug, looking at tube. Virology, biology, medicine.

Senior doctor man scientist virologist researcher, analyzing chemistry flask with new substance, vaccine, evaluating results. Professor discovered a new formula for treating disease in laboratory

Male doctor chemist examining drug or vaccine samples at lab, sitting at the table, while holding glass flask and making notes. Medical science research, medicines development, genetics concept

Handsome bearded male senior professional scientist sitting at the table and working on laptop, test tubes, glass flasks and microscope on the table at modern laboratory. Medicine, chemistry, biology.

Male senior scientist chemist, conducts experiments by synthesising new compounds, vaccines, drugs in modern laboratory. Portrait of scientist in lab making notes and holding glass flask.

Senior man, research scientist writes notes, lab observations. Male researcher carrying out scientific research, sitting at the table, holding test tube, using laptop and microscope, in a lab.

Happy Asian man scientist in white coat, mask and blue gloves, types on laptop the results of research, and shows his thumb up. Synthesis of new drugs, cancer treatment, medicine, biochemistry

Female scientist doctor researcher conducting an experiment in a laboratory, examining a new substance, medicine, looking at the flask in hand. Science, medicine, chemistry concept.

Discovering of new medicine, vaccine. Concentrated young female scientist, doctor, biotechnologist, holding test tube and looking at it while sitting at her working place in modern lab. Focus on hand.

Smart pretty Caucasian young lady scientist shows glass flask with liquid inside, sitting at the table with microscope and test tubes in the laboratory. Human skeleton on background. Science concept.

Portrait of Asian scientist doctor man sitting at the table and making notes on laptop, working with microscope and test tubes in laboratory. Medical, healthcare and pharmaceutical research concept

Male and female medical specialist using tablet while standing near glass flip chart and examining x ray scan. Two colleagues discussing results of clinical studies.

Young Caucasian female doctor, chemist or scientist loads liquid sample into flask from test tube. Science and chemistry concept. Focus on the hands.

Focus on skeleton model on stand being placed in doctors office while young physician providing check-up of patient. Orthopedist diagnosing medical condition of male wheelchair user in hospital.