What is phase contrast microscopy? Okay, so picture this: back in the 1930s, scientists were struggling to study things like living cells or bacteria under a microscope. Why? Because those tiny critters are practically see-through! You couldn’t get a clear look without dunking them in harsh dyes—which, you know, kinda killed them. Not exactly helpful if you … Read more
Confocal microscopy offers some pretty cool perks compared to regular optical microscopes. For starters, it gives you a razor-thin focus depth, cuts out that annoying blurry background glow, and lets you snap crisp, detailed “slices” of thick samples—one after another. This makes it a go-to tool in biomedicine, especially for studying cells and tissues, whether … Read more
What is a Dissecting microscope or a Stereo microscope? A dissecting microscope—also known as a stereo microscope—is an optical microscope study apparatus that enables the observation of an object at low to moderate magnification (typically 5x to 250x) through reflective light versus transmitted light. Thus, it’s a microscope made for viewing little details that could … Read more
Designed to enlarge things too tiny for the human eye to see, a microscope is a tool. It provides a portal to the hidden world of minute structures, allowing medical practitioners, teachers, and researchers to examine materials, cells, and creatures in until unheard-of clarity. Microscopes range significantly in kind, from simple to very sophisticated models. … Read more
Little, single-celled creatures living practically everywhere are bacteria. They’re prokaryotic, meaning they lack a real nucleus. They differ from eukaryotic cells in that they lack membrane-bound organelles. Shapes vary; spherical (cocci), rod-like (bacilli), spiral (spirilla), or comma-shaped (vibrios). Their survival in hostile environments depends on this diversity. Some twist like corkscrews, designated as spirochaetes. There … Read more
What is Semiconductor Sequencing? Semiconductor sequencing is the integration of microchip technology with DNA sequencing where electrical signals replace the detection of light. This sequencing method is unique because it uses complementary metal-oxide semiconductor chips associated with sequencing by synthesis chemistry; so, in this respect, it opens up opportunities to make DNA analysis quicker and … Read more
What is Trinocular Microscope? Principle of Trinocular Microscope A trinocular microscope is similar to a binocular microscope but has an additional third eyepiece for a camera. It shines an LED light on the specimen and projects it onto a computer screen through a digital camera. The trinocular microscope is essentially a binocular microscope that focuses … Read more
What is Rickettsia? Small-sized intracellular bacteria with a 0.3 to 2 µm range make up the genus Rickettsia. Rickettsia’s tiny scale made it first confused as a virus. Having DNA and RNA as their genetic material, these bacteria reproduce via binary fission within the cytoplasm of eukaryotic cells. Gram-negative rickettsia bacteria abound in the digestive … Read more
What is Urinary Tract Infection (UTI)? An illness affecting a portion of the urinary tract—that which comprises the kidneys, ureters, bladder, and urethral—is known as a urinary tract infection (UTI). Following are some salient features of urinary tract infections: Types of Urinary Tract Infection (UTI) UTIs can attack various urinary system segments, causing varied symptoms. … Read more
An electron microscope is an instrument which produces an image of a sample by means of a beam of electrons. Optical microscopes use light to form an image, electron microscopes have greater resolution, and can be used to observe objects that are too small to be seen with an optical microscope. In a large variety … Read more
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