absorption peak

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Related to Fluorophore: fluorescein

absorption peak

[əb′sȯrp·shən ‚pēk]
(spectroscopy)
A wavelength of maximum electromagnetic absorption by a chemical sample; used to identify specific elements, radicals, or compounds.
References in periodicals archive ?
The present work is a follow-up investigation on the practical use of Molecules of Equivalent Soluble Fluorophore values, MESF, defined and published earlier (6).
Our observations may also prove important in using GFP and related compounds in the application of FRET (fluorescence resonance energy transfer) and other measurements of molecular distances and orientations, because the interpretation of these measurements relies on the knowledge, or assumptions, of the orientation-dependent polarizability of the fluorophores.
For example, specific DNA sequences are detected through hybridization to complementary strands that carry the coding information (different fluorophore labels), whereas specific proteins are detected by using antibodies that target different epitopes on the surface of the protein target.
In such cases the molar extinction and quantum yield of the fluorophore is the same for the analyte and the reference material and the fluorescence radiance from both is proportional to the relative number of fluorophores.
Past research in the Bellarmine Laboratory used the predictable spectroscopic character of natural fluorophore mixtures that are observed on serial dilution to characterize petroleum-contaminated samples.
That question starts with whether UV light can penetrate ice to reach the water below where it's available to "excite" the fluorophore in a lure's coating.
The skin chromophore maps are calculated from the four spectral images, and the perfusion map and fluorophore distribution map--from the video-images taken at green and ultraviolet illumination of the skin, respectively.
The lack of fluorophore leakage from FF beads during magnetic separation indicates that all fluorophores are retained firmly inside the polymer of the beads.
3), the relative QY of QD605 modified with CD14 was measured using fluorescein as the reference fluorophore with a known quantum yield of 0.
Due to the release of the fluorophore, initially linked to the protein, the fluorescent signal is enhanced after protein cleavage.
The principle of operation is to trap an oxygen-sensitive fluorophore or pH indicator dye in a sol-gel host matrix that can be applied to the tip of a fibre, an adhesive membrane such as a patch or a flat substrate such as a cuvette.