autofluorescent

Thân thiện

The scientist examines an autofluorescent mineral under ultraviolet light.

Definition

1. Adjective:
   • Emitting light via self-induced fluorescence: Describes a substance or material that naturally fluoresces when exposed to light of a specific wavelength, without requiring the addition of external dyes or labels. This property is intrinsic to the material's molecular structure.

Usage Examples

• Adjective:
  • The chlorophyll in plant leaves is autofluorescent under ultraviolet light.
  • Researchers studied the autofluorescent properties of certain proteins to track them within living cells.
  • The mineral exhibited a bright, autofluorescent glow in the darkroom.

Advanced Usage

• Scientific Context: The term is primarily used in scientific fields like biology, microscopy, and materials science to describe inherent fluorescence.
  • Autofluorescent signals can sometimes interfere with experiments that use added fluorescent dyes.
• Technical Description: Often used to contrast with stained or labeled samples.
  • The background noise was high due to autofluorescent components in the tissue sample.

Variants and Related Words

• Autofluorescence (n): The phenomenon or property of being autofluorescent.
  • The autofluorescence of the lens in the human eye can be measured.
• Fluorescent (adj): Emitting light after absorbing radiation. (Note: This is a broader term; 'autofluorescent' specifies that the fluorescence is intrinsic, not applied).

Synonyms

• Self-fluorescent: Emitting light through its own fluorescence. (Less common technical synonym).
• Intrinsically fluorescent: Having a natural capacity for fluorescence.

Antonyms

• Non-fluorescent: Not emitting light under such conditions.
• Stained/Labeled: Referring to fluorescence that comes from an externally applied dye or tag.

Học thuật

Adjective

1. emitting light via self-induced fluorescence