Dennis Kunkel Microscopy, Inc.

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<i>Escherichia coli</i> - carbapenem resistant (CRE) bacterium
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Scientific stock photography library of light microscope pictures and electron microscopy images featuring science and biomedical microscopy photos

• Scientific Image Library - over 5,080 light microscopy and electron microscopy images of Algae, Arachnids, Bacteria, Crystals, Fungi, Insects, Invertebrates, Medical, Miscellaneous, Plants, Protozoa, Vertebrates, and Viruses. Biological, medical and general sciences images are available for licensed, rights-managed, non-exclusive use.
• Contact us if you can't find an image. Our archives contain thousands of black & white micrographs (colorizations available).
• Assignment Photography - Contact us for custom scientific imaging of samples and products. Dennis Kunkel Ph.D has over 40 years of microscopy expertise in biological and medical sciences.

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Below you will find 14 categories in our scientific stock photography library. Click on the category to see light microscope and electron microscopy images. Included are biomedical microscopy photos and microscopic pictures of biology.

Algae Electron Microscopy Images

Algae are aquatic photosynthetic organisms. Microscopic algae are a component of plankton. See - single celled (Euglena); diatom; dinoflagellate, toxic (Gambierdiscus); colonial (Volvox, Synura); and filamentous (Spirogyra, Zygnema).


Arachnids have chelicerae mouthparts. See dust mite (allergen), chigger, bird, Varroa bee, and rabbit ear mite. See a spider silk gland (spinneret), a garden and jumping spider and the brown recluse. The tick is an ectoparasite including deer, lone star, American and brown dog tick.


Archaea is a kingdom of single-celled microbes that are prokaryotes (like bacteria). Archaea prokaryotes have unique properties that separate them from bacteria. These archeon prokaryotes can be found in many environments including: human intestine, thermophilic methane producers, and aquatic halophiles.

Bacteria SEM Images

Bacteria have rod, coccoid and spiral shapes. Bacteria are associated with food poisoning (Salmonella, Clostridium); intestinal infection; (E.coli 0157); skin infection (Staphylococcus, Streptococcus) and oral infection (Porhyromonas). We have biomedical photos of antibiotic resistant forms (MRSA and VRE).

Crystals Light Microscope Photographs

Crystals include microscopic details of: antibiotics (streptomycin, penicillin); drugs (aspirin, methamphetamine, caffeine, nicotine); vitamins, hormones (insulin, testosterone, progesterone, adrenalin); neurotransmitters (dopamine, GABA, serotonin); insecticides and herbicides (DDT, Diazinon, Malathion).


Fungi are heterotrophic and form either a single cell, or hyphae that are multicellular and/or filamentous (yeast, mushroom, mold). Allergenic mold and toxic mold cause human disease (asthma, lung infection, skin infection, and athlete's foot).


Insects (invertebrates) exist in most environments – see microscope photos of: bee, butterfly, beetle, wasp. Some insects are destructive pests: weevil, ant, louse, termite, cockroach – or are disease vectors: mosquito (malaria) and flea (plague).

Medical Biomedical Microscopy Photos

Medical includes red blood cell, white blood cell, clot, T lymphocyte, platelet, heart muscle, capillary, small intestine, microvilli, liver cell, nose, lung, stem cell, tendon, muscle cell, skeletal muscle, kidney, collagen, neuron, neurotransmitter, human sperm, human egg, bone, hair, tooth, nucleus, mitochondria and other electron microscopy biomedical images.

Misc. Invertebrates

Misc. Invertebrates are animals without spines. See mollusc (octopus, snail), worm, flatworm (tapeworm), roundworm, fluke, jellyfish. Cestodes and trematodes are parasites that carry disease. The nematode (Caenorhabditis) is a soil organism.

Misc. Vertebrates

Misc. Vertebrates include: tadpole, frog skin, frog breathing spiracle, frog foot, fish skin, fish neuromast, fish sensory cell, shark skin (denticle); gecko (foot hairs); cat tongue (papillae, taste bud).

Miscellaneous Microscopy Pictures

Miscellaneous includes natural and manmade objects. See watch cog, needle, razor blade, carbon nanotube, asbestos, dust, fabric, kitchen sponge, feather, pet dander, lichen, salt, sugar, cat hair, and sand.


Plants include trees, grasses, ferns, mosses. Leaf surfaces often have trichomes that protect the plant (lavender, nettle). Stomata in the leaf surface facilitate gas exchange. Cellulose in plant cell walls is used to produce paper. Other images include: seeds – germination and surfaces, root hairs, petals, and pollen.


Protozoa can be heterotrophic or autotrophic, are motile and single-celled. Paramecium is a ciliated protozoan. Plasmodium is a parasite (malaria). Trypanosoma (trypanosome) causes trypanosomiasis. Leishmania causes human disease (leishmaniasis). Other parasites include: Giardia, Entamoeba and Trichomonas. Enterocytozoon bieneusi causes intestinal infections in AIDS patients.

Viruses TEM Photos

Viruses are submicroscopic particles that must use a host cell to replicate. A virus that infects a bacterium is a bacteriophage (T4, Listeria). Viruses cause human disease such as AIDS, herpes, influenza, hepatitis, small pox and the common cold. See also – polio, rotavirus, HIV, rhinovirus, tobacco mosaic, HTLV-1 and rhabdovirus.