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Cover Glass - Amaris Medical Solutions

Cover Glass

Cover Glass

Cover glass, also known as a cover slip, is a thin and transparent piece of glass used in various scientific and medical applications. It is typically square or rectangular in shape and comes in different sizes, depending on the intended use.



Key Features:

  1. Material: Cover glasses are made from high-quality glass, such as borosilicate or soda-lime glass, which is optically clear and chemically inert.
  2. Thickness: Cover glasses are extremely thin, typically ranging from 0.13 to 0.17 millimeters, ensuring minimal distortion of light passing through them.
  3. Flat and Smooth Surface: Cover glasses have a flat and smooth surface, which is essential for creating a uniform distance between the specimen and the microscope objective, facilitating clear and sharp imaging.
  4. Multiple Sizes: Cover glasses come in various standard sizes, with 18 mm x 18 mm and 22 mm x 22 mm being the most common. However, other dimensions are available to suit different microscopy applications.


Cover glasses are widely used in microscopy, histology, and other laboratory techniques for covering and protecting microscope slides and specimens. Some common applications include:

  1. Microscopy: In light microscopy, a thin layer of mounting medium is applied to a glass microscope slide, and a specimen is placed on it. The cover glass is then gently placed on top of the specimen to flatten it and prevent damage during imaging.
  2. Histology: In histological studies, tissue sections are prepared on microscope slides, stained, and then covered with a cover glass to protect the tissue and facilitate examination under a microscope.
  3. Microbiology: Cover glasses are used to create a thin smear of microorganisms, such as bacteria or fungi, on a microscope slide for microscopic analysis.
  4. Cell Culture: In cell culture studies, cover glasses are placed at the bottom of culture dishes or plates to provide a flat surface for growing and imaging cells.
  5. Fluorescence Microscopy: Cover glasses are essential in fluorescence microscopy, where they help reduce the loss of fluorescence signals due to evaporation and improve the resolution of fluorescent images.
  6. Live Cell Imaging: For live cell imaging, cover glasses are used to create a stable and controlled environment around cells while allowing high-quality visualization under a microscope.

Cover glasses are critical components in microscopy and laboratory work, providing protection and optical clarity for various specimens and samples. Their use ensures accurate and reliable results in scientific research, medical diagnosis, and other applications in the life sciences.



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