Question

define photosensitization and quenching​

Answer 1

Answer:

Quenching: When the excited foreign substance collides with another substance it gets converted into some other product due to the transfer of its energy to the colliding substance. This process is known as quenching. Mechanism of Photosensitization and Quenching can be explained by considering a general.

Answer 2

PHOTOSENSITIZATION

• Photosensitization is the process of commencing a reaction through the use of a substance which is capable of consuming light and transmitting the energy to the specified reactants.
• The method is commonly utilized in photochemical work, especially for reactions expecting light sources of specific wavelengths that are not easily available.
• Photosensitization is also a condition in which there is an increased vulnerability of skin to damage.
• Photosensitization is caused by the ultraviolet light from the sunlight.
• It causes skin damage to a variety of plants and animals.
• It is caused by the accumulation of Photodynamic Agent in the skin that makes the skin it to ultraviolet radiation

QUENCHING

• Quenching is the process which reduces the fluorescence intensity of a given substance.
• Quenching occurs during the process of Photosensitization.
• The molecule begins to divide itself and endures a change in spin to its singlet ground state.
• Many different processes result in quenching, such as transfer of energy, complex formation, excited state reactions and collision quenching.

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