Cross-linking
Cross-linking
Cross-linking (pronunciation: /ˈkrɔːs lɪŋkɪŋ/) is a process in chemistry and biology where two or more polymers are linked together, creating a more complex structure. This process is often used in the medical field, particularly in ophthalmology and biochemistry.
Etymology
The term "cross-linking" is derived from the English words "cross" and "link", referring to the process of linking different polymers together. The term was first used in the context of chemistry in the early 20th century.
Related Terms
- Polymer: A large molecule composed of repeating subunits. In the context of cross-linking, polymers are the structures that are linked together.
- Ophthalmology: The branch of medicine that deals with the diagnosis and treatment of eye disorders. Cross-linking is often used in ophthalmology to treat conditions such as keratoconus.
- Biochemistry: The study of chemical processes within and relating to living organisms. Cross-linking is a common process studied in biochemistry, particularly in relation to protein structure and function.
- Keratoconus: A degenerative disorder of the eye in which the cornea becomes thin and changes shape. Cross-linking is a common treatment for keratoconus.
Medical Application
In the field of medicine, cross-linking is often used in the treatment of certain eye conditions. For example, in ophthalmology, a procedure known as corneal cross-linking is used to treat keratoconus. This procedure involves using ultraviolet light and a photosensitizer to strengthen the cornea by creating new links between collagen fibers.
In biochemistry, cross-linking is used to study the structure and function of proteins. By creating links between different parts of a protein, scientists can gain insight into how the protein folds and functions.
See Also
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