Fluorescent Dipyrrinone Analogues
Fluorescent Dipyrrinone Analogues - Related Videos
10:36
In Vitro Imaging and Quantification of the Drug Targeting Efficiency of Fluorescently Labeled GnRH Analogues
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Cited by 1 •
2017
Selectively labeled fluorescent GnRH-I, -II and -III derivatives are reliable tools for tracking and quantifying their cellular uptake. This manuscript introduces experiments to visualize, quantify and compare the uptake efficiency of these GnRH conjugates in various cell lines.
10:55
Immunofluorescent Detection of Two Thymidine Analogues (CldU and IdU) in Primary Tissue
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Cited by 48 •
2010
We have derived a strategy to detect sequential incorporation of thymidine analogues (CldU and IdU) into tissues of adult mice to quantify two successive rounds of cell division. This strategy is useful to detect cell turnover of long-lived tissues, oncogenic transformation, or transit-amplifying cells.
11:22
Investigations on the Ga(III) Complex of EOB-DTPA and Its 68Ga Radiolabeled Analogue
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Cited by 2 •
2016
A procedure for the isolation of EOB-DTPA and subsequent complexation with natural Ga(III) and 68Ga is presented herein, as well as a thorough analysis of all compounds and investigations on labeling efficiency, in vitro stability and the n-octanol/water distribution coefficient of the radiolabeled complex.
14:11
Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
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2021
The Claisen-Schmidt condensation reaction is an important methodology for the generation of methine-bridged conjugated bicyclic aromatic compounds. Through utilizing a base-mediated variant of the aldol reaction, a range of fluorescent and/or biologically relevant molecules can be accessed through a generally inexpensive and operationally simple synthetic approach.
09:27
Rapid One-step Enzymatic Synthesis and All-aqueous Purification of Trehalose Analogues
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Cited by 12 •
2017
Trehalose analogues are emerging as important molecules for bio(techno)logical and biomedical applications. We describe an optimized protocol for enzymatically synthesizing and purifying trehalose analogues that is simple, efficient, fast, and environmentally friendly. Its application to the rapid production and administration of a probe for the detection of mycobacteria is demonstrated.
FAQs
After light absorption, an electron in the analogue reaches an excited state rather than remaining in its lower-energy state. It can then return to a lower state while releasing light through radiative relaxation, producing fluorescence. The observed emission therefore reflects how efficiently the molecule absorbs energy and how its electronic structure supports the excited-state transition.
Changing ring substitution or extending the conjugated arrangement can shift the wavelengths at which a molecule absorbs and emits. These structural changes also influence fluorescence intensity and stability, so closely related analogues may produce different optical signatures. Comparing those signatures helps chemists connect a particular molecular modification with a measurable change in photophysical behavior.
Hydrogen bonding provides another way for the molecular environment to alter fluorescence. Interactions involving the dipyrrinone framework can change the electronic conditions experienced by the conjugated system, affecting wavelength, intensity, or stability. This sensitivity makes hydrogen bonding relevant not only to molecular structure, but also to recognizing changes in nearby chemical environments.
Researchers interpret these molecules by relating an optical response to the structural or environmental change that produced it. A shift in absorption or emission wavelength, a change in intensity, or altered stability can indicate that substitution, conjugation, or hydrogen bonding has affected the molecule. This structure-property analysis supports rational design of responsive fluorescent materials.
Design begins by selecting structural features that can tune the desired optical response. Ring substitution, the extent of conjugation, and hydrogen-bonding behavior are key variables in the provided context. Chemists compare how these features influence wavelength, intensity, and stability, using the resulting relationships to refine analogues for a particular sensing or recognition goal.
Fluorescent dipyrrinone analogues are relevant when a chemical system must be examined through an optical signal. Their responses can support chemical sensing, molecular recognition, and analytical detection, while their tunable structures make them useful for studying structure-property relationships. In chemistry, the central outcome is a connection between molecular design and a measurable fluorescence response.