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Q
which process generates polymers quizlet
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
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The term "emulsion" typically refers to a mixture of two or more liquids that are normally immiscible (unmixable or unblendable), with one liquid containing a dispersion of the other in small droplets. An emulsion itself does not have a specific color as it depends on the properties of the liquids involved. For instance, milk is a common example of an emulsion, where fat droplets are dispersed in water, giving it a white appearance. Paint is another example, often white or tinted with pigments for various colors. The diversity in emulsion applications from food products, cosmetics, to industrial chemicals means emulsions can appear transparent, opaque, or take on any color depending on their composition and the light scattering effects of the particles within them.
Preparing gelatin-coated plates involves a straightforward process often used in cell culture to improve cell adherence to the substrate. First, dissolve gelatin (typically at 0.1 to 2% w/v concentration) in sterile water or PBS by heating. After cooling to around 37°C, sterile-filter the solution to remove undissolved particles. Then, add enough gelatin solution to cover the surface of each plate, ensuring a uniform layer. Incubate the plates at room temperature for 1 to 2 hours or at 4°C overnight to allow the gelatin to settle and form a coating. Before seeding cells, aspirate the excess gelatin solution and let the plates air-dry in a sterile environment (e.g., a biosafety cabinet) to ensure the surface is not overly wet, which could affect cell adherence. Some protocols might require crosslinking the gelatin to the surface with a brief exposure to UV light or glutaraldehyde, but this is optional and depends on your specific application.
Anti-reflective (AR) coating improves vision through eyeglasses by reducing glare, but it might not always be suitable. Situations where AR coating might not be an option include when glasses have deep scratches or other surface damage, as the coating requires a smooth surface to adhere properly. Additionally, very low-quality lenses might not be compatible with AR treatments due to material constraints. In some cases, individuals working in environments with high exposure to dirt and debris might opt out, as AR coatings can require more maintenance to keep clean. However, most modern glasses can benefit from AR coating, and these instances are relatively rare. Opting for AR coating is largely dependent on the lens material, condition, and user lifestyle.
[AR coating isn't suitable for scratched lenses, low-quality materials, or in environments with high dirt exposure. Most glasses, however, can benefit from it, depending on the lens condition and user lifestyle.]
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