Mature laboratory scientist testing phenolphthalein chemical reaction with a beaker and pipette in ultraviolet lit lab. Serious doctor wearing protective glasses, experimenting alkaline presence test. - Filmati e video stock

Pretty doctor writing with pencil while handsome scientist holding test tube with liquid

Laboratory technician analyzing blood samples in blood bank 4k

Closeup of laboratory scientist using dropper or pipette to test plants and leaves in test tubes. Botanist checking for chemical reactions during plant genetic research. Experimenting with solution.

Closeup of a medical research experiment in a chemistry lab of color changing liquid. Pouring a chemical into test tube with blue solution to create stable reaction about acid, bases and alkaline.

Mature laboratory scientist using dropper or pipette to fill test monkeypox tubes and examine chemical reactions in ultraviolet lit lab. Biochemist, genetic engineer and doctor doing medical research.

Two scientists using a microscope and digital tablet in a laboratory while doing sample analysis. A diverse female team of specialists wearing masks, working in an advanced lab, looking for a cure.

Young scientists experimenting with petri dish in a laboratory. Diverse microbiologists examining bacteria samples in glass plates at innovative research hospital. Chemistry students testing in a lab.

Female healthcare specialist working on a vaccine cure for a virus in a research lab. Expert with medical findings at a research facility. A african american scientist using a laptop in a laboratory.