En
  • En English
  • De Deutsch
  • Fr Français
  • Sp Español
  • Ru Русский
  • It Italiano
  • Pt Português
  • Ua Українська
34174194 results

    OrientationOrientation
    PeoplePeople
    CategoryCategory
    ColorColor
    EditorialEditorial
    Safe SearchSafe Search
    Clear
    Hide
    Human embryonic stem cells in Petri dish, digital illustration. — Stock Photo
    Human embryonic stem cells in Petri dish, digital illustration.
    Colored scanning electron micrograph of red blood cells. — Stock Photo
    Colored scanning electron micrograph of red blood cells.
    Brown Adenovirus particles, colored digital 3d illustration. — Stock Photo
    Brown Adenovirus particles, colored digital 3d illustration.
    Closeup of abstract background with round shaped cells of vaccine of different sizes illuminated by colorful light — Stock Photo
    Closeup of abstract background with round shaped cells of vaccine of different sizes illuminated by colorful light
    Colored scanning electron micrograph of pollen grains from Nymphaeaceae water lily flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from Nymphaeaceae water lily flower.
    Nanomachines working on red blood cells, digital illustration. — Stock Photo
    Nanomachines working on red blood cells, digital illustration.
    Cross-section through a fallopian tube — Stock Photo
    Cross-section through a fallopian tube
    Cut in an artery seen from its interior — Stock Photo
    Cut in an artery seen from its interior
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Digital illustration of shaped virus cells. — Stock Photo
    Digital illustration of shaped virus cells.
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons — Stock Photo
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons
    Cancer invasion into surrounding tissues, conceptual computer illustration. — Stock Photo
    Cancer invasion into surrounding tissues, conceptual computer illustration.
    Cancer cells and white blood cells — Stock Photo
    Cancer cells and white blood cells
    Human cell, computer illustration — Stock Photo
    Human cell, computer illustration
    Digital illustration showing vaginitis caused by Candida albicans fungus and close-up of yeast cells. — Stock Photo
    Digital illustration showing vaginitis caused by Candida albicans fungus and close-up of yeast cells.
    Illustration showing different types of lipid-based nanoparticles for drug delivery: Nanostructured Lipid Carrier (NLC) (top left), emulsion (top right), liposome (bottom left), and Solid Lipid Nanoparticle (SLN) (bottom right). — Stock Photo
    Illustration showing different types of lipid-based nanoparticles for drug delivery: Nanostructured Lipid Carrier (NLC) (top left), emulsion (top right), liposome (bottom left), and Solid Lipid Nanoparticle (SLN) (bottom right).
    Four-cell embryo — Stock Photo
    Four-cell embryo
    Pancreatic cells. Colored transmission electron micrograph (TEM) of acinar (exocrine) pancreatic cells (red) adjacent to hormone- secreting (endocrine) Islet of Langerhans cells (yellow) — Stock Photo
    Pancreatic cells. Colored transmission electron micrograph (TEM) of acinar (exocrine) pancreatic cells (red) adjacent to hormone- secreting (endocrine) Islet of Langerhans cells (yellow)
    Light microscope of a spleen. The spleen is the largest mass of lymphatic tissue in the body. Haematoxylin and eosin stain. — Stock Photo
    Light microscope of a spleen. The spleen is the largest mass of lymphatic tissue in the body. Haematoxylin and eosin stain.
    Fat (adipose) tissue, coloured scanning electron micrograph (SEM). The fat cells (adipocytes, round) are surrounded by collagen fibres. — Stock Photo
    Fat (adipose) tissue, coloured scanning electron micrograph (SEM). The fat cells (adipocytes, round) are surrounded by collagen fibres.
    3d illustration of cholera pathogens in dark polluted water. — Stock Photo
    3d illustration of cholera pathogens in dark polluted water.
    Adenocarcinoma of the sigmoid colon — Stock Photo
    Adenocarcinoma of the sigmoid colon
    Antibodies attacking virus particle, 3d illustration — Stock Photo
    Antibodies attacking virus particle, 3d illustration
    CRISPR-Cas9 gene editing complex in DNA and cells, conceptual illustration. — Stock Photo
    CRISPR-Cas9 gene editing complex in DNA and cells, conceptual illustration.
    3d illustration of blood plasma and components of blood flowing from artery. — Stock Photo
    3d illustration of blood plasma and components of blood flowing from artery.
    Illustration of group of cells in blood clot. — Stock Photo
    Illustration of group of cells in blood clot.
    Computer illustration of unicellular fungus (yeast) Candida auris — Stock Photo
    Computer illustration of unicellular fungus (yeast) Candida auris
    Anthrax bacteria, illustration. Anthrax bacteria (Bacillus anthracis) are the cause of the disease anthrax in humans and livestock. They are gram-positive spore producing bacteria arranged in chains (streptobacilli). — Stock Photo
    Anthrax bacteria, illustration. Anthrax bacteria (Bacillus anthracis) are the cause of the disease anthrax in humans and livestock. They are gram-positive spore producing bacteria arranged in chains (streptobacilli).
    3d illustration of a cross section of skin with melanoma in bloodstream and lymphatic tract. — Stock Photo
    3d illustration of a cross section of skin with melanoma in bloodstream and lymphatic tract.
    Red blood cells in blood stream — Stock Photo
    Red blood cells in blood stream
    Top view of microbes growing on agar plate on plain background. — Stock Photo
    Top view of microbes growing on agar plate on plain background.
    3d illustration of synapse structure of human neurons while passing electrical signal. — Stock Photo
    3d illustration of synapse structure of human neurons while passing electrical signal.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Zika virus particles transmitted by mosquito bite, digital illustration. — Stock Photo
    Zika virus particles transmitted by mosquito bite, digital illustration.
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer illustration.
    PC12 neurone in culture — Stock Photo
    PC12 neurone in culture
    Closeup of Amoeba, computer illustration — Stock Photo
    Closeup of Amoeba, computer illustration
    Kidney glomerulus and podocyte cells — Stock Photo
    Kidney glomerulus and podocyte cells
    Flu viruses, computer illustration — Stock Photo
    Flu viruses, computer illustration
    Simple columnar epithelium, light micrograph — Stock Photo
    Simple columnar epithelium, light micrograph
    Illustration of cell membrane with embedded proteins, molecules and T-cell receptor. — Stock Photo
    Illustration of cell membrane with embedded proteins, molecules and T-cell receptor.
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Cancer cells, computer illustration — Stock Photo
    Cancer cells, computer illustration
    Interaction between virus and dendritic cell, computer illustration. Dendritic cells play a crucial role in initiating immune responses against viruses — Stock Photo
    Interaction between virus and dendritic cell, computer illustration. Dendritic cells play a crucial role in initiating immune responses against viruses
    Illustration of transparent cells with splitting nucleus, cell membrane and visible chromosomes. — Stock Photo
    Illustration of transparent cells with splitting nucleus, cell membrane and visible chromosomes.
    Illustration of dividing cancer cell on blue background. — Stock Photo
    Illustration of dividing cancer cell on blue background.
    Illustration of clot of human blood cells. — Stock Photo
    Illustration of clot of human blood cells.
    Cancer cell with T-cell, — Stock Photo
    Cancer cell with T-cell,
    Illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Illustration of cancer cell being attacked by white blood cells.
    Locker room with open and closed cells and keys — Stock Photo
    Locker room with open and closed cells and keys
    Nerve cells on blue background, digital illustration. — Stock Photo
    Nerve cells on blue background, digital illustration.
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration. — Stock Photo
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration.
    Amyloid precursor protein of cell membrane, digital illustration. — Stock Photo
    Amyloid precursor protein of cell membrane, digital illustration.
    Polycythemia vera, illustration. Polycythemia vera is a rare slow-growing blood cancer in which bone marrow makes too many red blood cells. These excess cells thicken blood, slowing its flow — Stock Photo
    Polycythemia vera, illustration. Polycythemia vera is a rare slow-growing blood cancer in which bone marrow makes too many red blood cells. These excess cells thicken blood, slowing its flow
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals. — Stock Photo
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals.
    Digital illustration and light micrograph of squamous cell carcinoma of lung. — Stock Photo
    Digital illustration and light micrograph of squamous cell carcinoma of lung.
    Molecular structure illustrating pure research. — Stock Photo
    Molecular structure illustrating pure research.
    Healthy Red blood cells — Stock Photo
    Healthy Red blood cells
    Brain-eating amoeba Naegleria fowleri protozoans in trophozoite form, digital illustration. — Stock Photo
    Brain-eating amoeba Naegleria fowleri protozoans in trophozoite form, digital illustration.
    Human blood cells — Stock Photo
    Human blood cells