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Symbolic illustration of infectious viruses under the microscope, for example influenza viruses, smallpox, measles or similar. Medical research and investigation of diseases and healthcare concept.
plant Stem-Collenchyma C.S. under light mircoscope with white background
The plant roots under the microscope
Squash preparation of  onion root tip cells stained to reveal chromosomes,  Bright field illumination, light microscopy.  This image was taken with the X40 objective lens.  Depth of focus is extremely low at this magnification.  Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced.  The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Epithelial Cells in urine sediment.
Microscopic image of blood
Gram stain of the bacterium, Staphylococcus aureus. This bacteria is gram positive, as such it appears purple after staining due to the thick peptidoglycan. The round cells are also seen in clusters.
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
Yeast cells, whole mount, 80X light micrograph. Stained smear of Saccharomyces cerevisiae, brewers or bakers yeast, Eukaryotic, single-celled microorganisms classified as members of fungus kingdom.
Trematode parasite under a microscope
Candida spp, fungi, emerging multidrug fungus. Candida albicans, C. auris and other yeast fungi. Close up micrograph
Squash preparation of stained onion root tip cells showing various stages of mitosis. Differential interference contrast optics on a Leica microscope, Image taken with the X40 objective lens.  Depth of focus is extremely shallow (just a few microns).  Differential interference contrast results in an optical slice horizontally through the specimen providing maximum possible resolution at this magnification and good contrast. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Moderate Red cell on center Mycobacterium Tuberculosis bacteria.
A micrograph of nanoparticles made of lipids containing an anticancer drug. Modern biomedical applications and cancer treatments
stx2a is a subtype of Shiga toxin-producing E. coli (STEC) linked to Hemolytic Uremic Syndrome (HUS), a severe condition impacting kidney function and blood clotting. STEC poses a significant risk of foodborne illness and can spread within communities including family members.
Candida spp, fungi, emerging multidrug fungus. Candida albicans, C. auris and other yeast fungi. Close up micrograph
Microscopic image of blood
Yeast Infection; Budding yeast and pseudohyphae of Candida albicans, gram's stain. This fungus commonly affects vagina and vulva, oral (thrush) and diaper rash.
Urothelial carcinoma, high grade.  High-grade tumors have an aggressive appearance under a microscope and are assumed invasive in the kidney or ureter.
Gram positive cocci in chain.
DNA code with tapeworm egg under microscopy
Abstract designed black, gray and white wallpaper background image for computer desktops.
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
Microscopic 100x show small red rod of Mycobacterium tuberculosis and Blue background of other cells after sputum smear staining with Ziehl–Neelsen stain.
Photomicrograph of one celled amoeba. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
Antimicrobial susceptibility testing in culture plate. Drug sensitivity test, disk drug, antibiotic sensitivity, Ciprofloxacin resistance.
Squash preparation of stained onion root tip cells showing late telophase and metaphase stages of mitosis. Bright field illumination on a Leica microscope, Image taken with the X100 objective lens.  Depth of focus is extremely shallow (less than one micron).  Optimum setting of the aperture for maximum resolution and good contrast. Chromatic aberation is inevitable in light microscopy, especially at this scale of magnification, but has been kept to a minimum in this image.
A micrograph of nanoparticles made of lipids containing an anticancer drug. This drug appears as a crystal inside of the spherical liposomes
Speech Bubbles
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