753 images for scanning electron microscope

  • 679-08425083

    Streptococcus bacteria. Coloured scanning electron micrograph (SEM) of chains of Streptococcus bacteria with Streptomyces coelicoflavus bacteria in the background. Streptococcus bacteria are an example of cocci (round bacteria) that form chains. There are over 50 species of Streptococcus bacteria, some of which cause disease in humans. Streptomyces coelicoflavus is a filamentous soil bacterium.

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  • 679-09244349

    Blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes, red), white blood cells (leukocytes, blue), and platelets (thrombocyte, orange). The disc-shaped, biconcave erythrocytes transport oxygen to the body's cells and remove carbon dioxide to the lungs. Leukocytes are part of the immune system, defending the body against infection by ingesting pathogens by

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  • 649-07063300

    Blue dragonfly wing, SEM, color enhanced

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  • 679-08008793

    Mycobacterium smegmatis bacteria. Coloured scanning electron micrograph (SEM) of Mycobacterium smegmatis bacteria. These bacteria feed on dead or decaying material. They are found in soil or in smegma (secretions from genital glands of animals). Most Mycobacteria are harmless, but a few are pathogenic, such as Mycobacterium tuberculosis, the cause of the lung disease tuberculosis. M. smegmatis is

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  • 679-08425099

    Streptomyces coelicoflavus bacteria. Coloured scanning electron micrograph (SEM) of strands of Streptomyces coelicoflavus bacteria. Streptomyces coelicoflavus is a filamentous soil bacterium.

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  • 679-09200669

    Tongue bacteria. Coloured scanning electron micrograph (SEM) of bacteria on the surface of a human tongue. Large numbers of bacteria can form a visible layer on the surface of the tongue. The mouth contains a large number of bacteria, most of which are harmless or even beneficial. However, some bacteria can cause throat infections or cause the formation of plaque deposits on the teeth, which may l

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  • 679-08425091

    Streptomyces coelicoflavus bacteria. Coloured scanning electron micrograph (SEM) of strands of Streptomyces coelicoflavus bacteria. Streptomyces coelicoflavus is a filamentous soil bacterium.

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  • 679-08425167

    Coloured scanning electron micrograph (SEM) of rod-shaped (bacillus) bacteria. The tubes connecting the bacteria are pili, which are used to transfer genetic material between bacteria in a process known as conjunction.

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  • 679-09184285

    Dendritic cell. Coloured scanning electron micrograph (SEM) of a protective cell of the human immune system known as a dendritic cell. The long projections seen on the cell's surface are "feet" to help it move. These cells process foreign antigens which then act like an alarm signal, alerting other immune cells of the body to the infection. Dendritic cells found in the upper layer of the skin (the

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  • 679-08425079

    MRSA bacteria. Coloured scanning electron micrograph (SEM) of methicillin-resistant Staphylococcus aureus (MRSA) bacteria (round). MRSA is a Gram-positive, round (coccus) bacterium that is resistant to many commonly prescribed antibiotics. It is carried by around a third of the population without causing any symptoms. However, in vulnerable people, such as those that have recently had surgery, it

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  • 679-08425090

    Streptomyces coelicoflavus bacteria. Coloured scanning electron micrograph (SEM) of strands of Streptomyces coelicoflavus bacteria. Streptomyces coelicoflavus is a filamentous soil bacterium.

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  • 679-08425092

    Oral bacteria. Coloured scanning electron micrograph (SEM) of mixed oral bacteria (Streptococcus, round) with some bacilli bacteria (rod-shaped).

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  • 679-08425100

    Oral bacteria. Coloured scanning electron micrograph (SEM) of mixed oral bacteria, consisting mostly of rod-shaped bacteria (bacilli) and filamentous bacteria.

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  • 679-08008799

    Blood cells. Coloured scanning electron micrograph (SEM) of human blood showing a red and white cell ( lymphocyte). Red blood cells (erythrocytes) have a characteristic biconcave-disc shape and are numerous. These large cells contain haemoglobin, a red pigment by which oxygen is transported around the body. They are more numerous than white blood cells, one of which is visible in this sample (blue

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  • 679-07962140

    March fly. Scanning electron micrograph (SEM) of a female march fly (family Bibionidae). A member of a family of stout insects in the fly order, Diptera, that are commonly seen around flowers during spring and early summer. The larvae feed on the roots of plants and on decaying vegetation and may occasionally become plant pests. March flies show sexual dimorphism or visual difference between the s

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  • 649-06113276

    Scientist working on computer in lab

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  • 649-08562199

    High vacuum SEM image of plant lice face to face

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  • 649-08562200

    High vacuum SEM image of plant lice

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  • 679-08026645

    Fat tissue, SEM

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  • 679-08536304

    Bone tissue. Coloured scanning electron micrograph (SEM) of cancellous (spongy) bone. Bone tissue can be either cortical (compact) or cancellous. Cortical bone usually makes up the exterior of the bone, while cancellous bone is found in the interior. Cancellous bone is characterised by a honeycomb arrangement, comprising a network of trabeculae (rod-shaped tissue). These structures provide support

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  • 679-08008803

    Clostridium phytofermentans bacteria. Coloured scanning electron micrograph (SEM) of Clostridium phytofermentans bacteria A gram-positive, anaerobic, rod shaped prokaryote (bacterium). C. phytofermentans is a spore-forming bacterium that naturally occurs amongst decomposing plant and animal matter. Strains of this species appear able to produce ethanol, acetate, carbon dioxide, and hydrogen gas by

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  • 649-08180572

    Complexity of human sadness teardrop imaged in a scanning electron microscope

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  • 679-06780907

    Athlete's foot fungus. Coloured scanning electron micrograph (SEM) of Malassezia sp. yeast cells on the skin of a human foot. This fungus can cause the condition known as athlete's foot. Magnification: x10,000, when printed 10cm wide.

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  • 679-08425168

    Coloured scanning electron micrograph (SEM) of rod-shaped (bacillus) bacteria. The tubes connecting the bacteria are pili, which are used to transfer genetic material between bacteria in a process known as conjunction.

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  • 679-09184283

    Blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes, red), white blood cells (leukocytes, pink and cyan), and platelets (thrombocytes, yellow). The disc-shaped, biconcave erythrocytes transport oxygen to the body's cells and remove carbon dioxide to the lungs. Leukocytes are part of the immune system, defending the body against infection by ingesting pat

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  • 679-08518500

    Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (RBCs, erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells. They circulate in the blood and also remove carbon dioxide to the lungs for exhalation. Their red colour is due to the oxygen-carrying protein haemoglobin. Red blood cells, the most abundant cell i

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  • 679-08518505

    Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (RBCs, erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells. They circulate in the blood and also remove carbon dioxide to the lungs for exhalation. Their red colour is due to the oxygen-carrying protein haemoglobin. Red blood cells, the most abundant cell i

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  • 679-08518496

    Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (RBCs, erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells. They circulate in the blood and also remove carbon dioxide to the lungs for exhalation. Their red colour is due to the oxygen-carrying protein haemoglobin. Red blood cells, the most abundant cell i

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  • 679-08026643

    Fat tissue, SEM

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  • 679-09244352

    Plaque-forming bacteria, coloured scanning electron micrograph (SEM). Plaque consists of a film of bacteria embedded in a glycoprotein matrix. The matrix is formed from bacterial secretions and saliva. Plaque is the main cause of tooth decay. The bacteria feed on sugars in food, producing acid as a waste product. This acid corrodes the teeth's enamel coating, resulting in dental caries. A build-up

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  • 679-08425077

    MRSA bacteria. Coloured scanning electron micrograph (SEM) of methicillin-resistant Staphylococcus aureus (MRSA) bacteria (round). MRSA is a Gram-positive, round (coccus) bacterium that is resistant to many commonly prescribed antibiotics. It is carried by around a third of the population without causing any symptoms. However, in vulnerable people, such as those that have recently had surgery, it

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  • 679-08425087

    Streptomyces coelicoflavus bacteria. Coloured scanning electron micrograph (SEM) of Streptomyces coelicoflavus bacteria (strands) and chains of Streptococcus bacteria (round). Streptomyces coelicoflavus is a filamentous soil bacterium. Streptococcus bacteria are an example of cocci (round bacteria) that form chains.

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  • 679-08425086

    Streptomyces coelicoflavus bacteria. Coloured scanning electron micrograph (SEM) of Streptomyces coelicoflavus bacteria (strands) and chains of Streptococcus bacteria (round). Streptomyces coelicoflavus is a filamentous soil bacterium. Streptococcus bacteria are an example of cocci (round bacteria) that form chains.

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  • 679-05992379

    Ruptured venule. Coloured scanning electron micrograph (SEM) of a ruptured venule running through fatty tissue. Stacked red blood cells (rouleaux formation) and white blood cells are seen within the venule. Magnification: x1050 when printed at 10 centimetres wide.

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  • 679-08518253

    Tongue bacteria. Coloured scanning electron micrograph (SEM) of bacteria on the surface of a human tongue. Large numbers of bacteria can form a visible layer on the surface of the tongue. The mouth contains a large number of bacteria, most of which are harmless or even beneficial. However, some bacteria can cause throat infections or cause the formation of plaque deposits on the teeth, which may l

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  • 679-03681362

    Water bear. Coloured scanning electron micrograph (SEM) of a water bear (Macrobiotus sp.), or tardigrade. This tiny invertebrate lives in aquatic and semi-aquatic habitats such as lichen and damp moss. Magnification: x250 when printed at 10 centimetres wide.

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  • 679-08425093

    Oral bacteria. Coloured scanning electron micrograph (SEM) of mixed oral bacteria (Streptococcus, round) with some bacilli bacteria (rod-shaped).

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  • 649-06113277

    Scientists working with equipment in lab

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  • 679-08425081

    Oral bacteria. Coloured scanning electron micrograph (SEM) of mixed oral bacteria (Streptococcus, round) and bacilli bacteria, with the intercellular strands being eDNA (extracellular deoxyribonucleic acid).

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  • 679-07813892

    Neurone, SEM

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  • 679-07764665

    Coloured scanning electron micrograph (SEM) of Schizosaccharomyces pombe yeast. S. pombe is a single-celled fungus that is studied widely as a model organism for eukaryotic cell division. It is a rod-shaped yeast that grows by elongation at its ends. It replicates by binary fission. Magnification: x6500 when printed at 10 centimetres wide.

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  • 679-09160304

    Activated T lymphocytes and red blood cells (RBCs). Coloured scanning electron micrograph (SEM) of activated T lymphocytes and RBCs from a human blood sample. T lymphocytes, or T cells, are a type of white blood cell and components of the body's immune system. They mature in the thymus. T lymphocytes recognise a specific site on the surface of pathogens or foreign objects (antigens), bind to it, a

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  • 679-08425084

    Streptococcus bacteria. Coloured scanning electron micrograph (SEM) of chains of Streptococcus bacteria with Streptomyces coelicoflavus bacteria in the background. Streptococcus bacteria are an example of cocci (round bacteria) that form chains. There are over 50 species of Streptococcus bacteria, some of which cause disease in humans. Streptomyces coelicoflavus is a filamentous soil bacterium.

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  • 679-08425078

    MRSA bacteria. Coloured scanning electron micrograph (SEM) of methicillin-resistant Staphylococcus aureus (MRSA) bacteria (round). MRSA is a Gram-positive, round (coccus) bacterium that is resistant to many commonly prescribed antibiotics. It is carried by around a third of the population without causing any symptoms. However, in vulnerable people, such as those that have recently had surgery, it

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  • 679-05992371

    Heart strings, coloured scanning electron micrograph (SEM). The heart strings, chordae tendineae, are cord-like tendons that connect the papillary muscles on the internal heart wall to the heart valves. Magnification: x90 when printed at 10 centimetres wide.

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  • 679-08173224

    Coloured scanning electron micrograph (SEM) of breast cancer cells growing in culture. These are from the MCF-7 cell line. Magnification: x280 when printed at 10 centimetres tall.

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  • 649-07063295

    3D SEM image of crystal, 8 degree tilt

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  • 679-03680589

    Uterus lining, coloured scanning electron micrograph (SEM). At centre is the opening of a secretory gland. The epithelial cells are covered in uniform short microvilli. Magnification: x3250 when printed at 10 centimetres wide.

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  • 679-08536305

    Bone tissue. Coloured scanning electron micrograph (SEM) of cancellous (spongy) bone. Bone tissue can be either cortical (compact) or cancellous. Cortical bone usually makes up the exterior of the bone, while cancellous bone is found in the interior. Cancellous bone is characterised by a honeycomb arrangement, comprising a network of trabeculae (rod-shaped tissue). These structures provide support

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  • 679-08173225

    Coloured scanning electron micrograph (SEM) of breast cancer cells growing in culture. These are from the MCF-7 cell line. Magnification: x800 when printed at 10 centimetres wide.

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  • 679-08425097

    Streptomyces coelicoflavus bacteria. Coloured scanning electron micrograph (SEM) of Streptomyces coelicoflavus bacteria (strands) and chains of Streptococcus bacteria (round). Streptomyces coelicoflavus is a filamentous soil bacterium. Streptococcus bacteria are an example of cocci (round bacteria) that form chains.

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  • 679-02681757

    Fat (adipose) tissue, coloured scanning electron micrograph (SEM). The fat cells (adipocytes, round) are surrounded by collagen fibres. Lipid is purple. Empty cells are seen at top right. Magnification: x650 when printed at 10 centimetres wide.

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  • 679-08173215

    Coloured scanning electron micrograph (SEM) of breast cancer cells growing in culture. These are from the MCF-7 cell line. Magnification: x255 when printed at 10 centimetres wide.

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  • 679-03681309

    Orchid (Phalaenopsis sp.) petal, coloured scanning electron micrograph (SEM). Magnification: x450 when printed at 10 centimetres wide.

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  • 679-03298433

    Blood clot. Coloured scanning electron micrograph (SEM) of red blood cells (erythrocytes, red) clumped together with fibrin (grey) to form a blood clot. Magnification: x5000 when printed 10 centimetres wide.

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  • 679-09184329

    Leukaemia, conceptual composite image. Scanning electron microscopy (SEM) and computer generated image (CGI) of DNA (deoxyribonucleic acid) molecules (helices) and red and white blood cells. Leukaemia is cancer of the white blood cells. Leukemias are caused by mutations in the DNA of blood cells. These genetic mutations change the way the blood cells reproduce and can also prevent them from funct

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  • 679-08425098

    Streptomyces coelicoflavus bacteria. Coloured scanning electron micrograph (SEM) of Streptomyces coelicoflavus bacteria (strands) and chains of Streptococcus bacteria (round). Streptomyces coelicoflavus is a filamentous soil bacterium. Streptococcus bacteria are an example of cocci (round bacteria) that form chains.

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  • 679-05992377

    Dense connective tissue, coloured scanning electron micrograph (SEM). The main component of this tissue is collagen. Magnification: x1500 when printed at 10 centimetres wide.

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  • 649-07063293

    3D SEM image of chamomile pollen, 8 degree tilt

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  • 649-07063289

    Lemongrass cross section, SEM

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  • 679-03298432

    Blood clot. Coloured scanning electron micrograph (SEM) of red blood cells (erythrocytes, red) clumped together with fibrin (brown) to form a blood clot. Magnification: x5000 when printed 10 centimetres wide.

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  • 649-08565237

    Bee SEM

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  • 679-02685135

    Trachea mucous membrane. Coloured scanning electron micrograph (SEM) of a fractured mucous membrane of the trachea (wind pipe), showing the epithelium and underlying connective tissue. The upper epithelial surface is covered in a mixture of secretory cells (pale purple) and ciliated cells (pale blue). The tall columnar epithelium (dark purple) is exposed with some nuclei visible, and the underlyin

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  • 679-08173227

    Coloured scanning electron micrograph (SEM) of breast cancer cells growing in culture. These are from the MCF-7 cell line. Magnification: x800 when printed at 10 centimetres wide.

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  • 679-03681367

    Thyroid gland. Coloured scanning electron micrograph (SEM) of a fracture through the thyroid gland revealing several follicles (pink). Between the follicles is connective tissue (yellow). Magnification: x100 when printed at 10 centimetres wide.

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  • 679-03681345

    Gallbladder. Coloured scanning electron micrograph (SEM) of the surface of the gallbladder showing the numerous microvilli that cover the columnar epithelium. Magnification: x800 when printed at 10 centimetres wide.

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  • 649-07063286

    Pepper, SEM

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  • 679-03681310

    Phlox sp. pollen grain, coloured scanning electron micrograph (SEM). Magnification: x2000 when printed at 10 centimetres wide.

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  • 679-02685116

    Nerve fibres. Coloured scanning electron micrograph (SEM) of fractured myelinated nerve fibres. The myelin sheath is blue-green, the axoplasm is yellow and the endoneurium (connective tissue) is blue. Magnification: x800 when printed at 10 centimetres wide.

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  • 679-05992374

    Inner ear hair cells. Coloured scanning electron micrograph (SEM) of sensory hair cells in the cochlea of the inner ear. The crescent-shaped arrangements of hairs across top are the stereocilia. Each crescent lies atop a single cell. Magnification: x1000 when printed at 10 centimetres wide.

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  • 679-03681319

    Stagnant water bacteria. Coloured scanning electron micrograph (SEM) of bacteria attached to a leaf in stagnant water. Numerous proteinaceous filaments extend from the bacteria. Magnification: x8000 when printed at 10 centimetres wide.

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  • 679-03298328

    Leukaemia blood cells. Coloured scanning electron micrograph (SEM) of B lymphocyte white blood cells (round) from a patient with leukaemia. Magnification: x5000 when printed 10 centimetres wide.

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  • 679-03681321

    Bay tree anther. Coloured scanning electron micrograph (SEM) of an anther (male reproductive part) from a bay tree (Laurus nobilis) flower. Magnification: x70 when printed at 10 centimetres wide.

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  • 649-07063986

    Moth scales, SEM

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  • 679-08173223

    Coloured scanning electron micrograph (SEM) of breast cancer cells growing in culture. These are from the MCF-7 cell line. Magnification: x280 when printed at 10 centimetres wide.

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  • 649-07063290

    Lemongrass cross section, SEM

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  • 679-07813891

    Neurone, SEM

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  • 679-07764666

    Coloured scanning electron micrograph (SEM) of Schizosaccharomyces pombe yeast. S. pombe is a single-celled fungus that is studied widely as a model organism for eukaryotic cell division. It is a rod-shaped yeast that grows by elongation at its ends. It replicates by binary fission. Magnification: x6500 when printed at 10 centimetres wide.

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  • 649-07063298

    Fuzzy leaf, SEM, colored blue

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  • 679-03680588

    Uterus lining, coloured scanning electron micrograph (SEM). At centre is the opening of a secretory gland. The epithelial cells are covered in uniform short microvilli. Magnification: x3250 when printed at 10 centimetres wide.

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  • 679-03681886

    Fly larva, coloured scanning electron micrograph (SEM).

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  • 649-07063299

    Indicolite corrosion crystals, inverted color, SEM

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  • 679-06780906

    Athlete's foot fungus. Coloured scanning electron micrograph (SEM) of Malassezia sp. yeast cells on the skin of a human foot. This fungus can cause the condition known as athlete's foot. Magnification: x10,000, when printed 10cm wide.

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  • 679-07813894

    Orbulina, SEM

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  • 679-08008795

    Blood cells. Coloured scanning electron micrograph (SEM) of human blood showing a red and white cell ( lymphocyte). Red blood cells (erythrocytes) have a characteristic biconcave-disc shape and are numerous. These large cells contain haemoglobin, a red pigment by which oxygen is transported around the body. They are more numerous than white blood cells, one of which is visible in this sample (whit

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  • 679-05992380

    Sucrose crystals, coloured scanning electron micrograph (SEM). Magnification: x1250 when printed at 10 centimetres wide.

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  • 679-07813893

    Neurone, SEM

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  • 649-07063288

    Salt cube, SEM

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  • 649-07063285

    Margarita salt, SEM

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  • 679-02681755

    Fat (adipose) tissue, coloured scanning electron micrograph (SEM). The fat cells (adipocytes, round) are surrounded by collagen fibres. Magnification: x650 when printed at 10 centimetres wide.

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