Chemistry

荧光共振能量转移

Fluorescence Resonance Energy Transfer

A non-radiative energy transfer process where excitation energy is transferred from an excited donor fluorophore to an acceptor molecule via dipole-dipole coupling. / 一种非辐射能量转移过程，激发能通过偶极-偶极耦合从激发的供体荧光团转移到受体分子。

Knowledge type: 自然理论
First proposed or discovered
Proposer: Turkey Farm member
Creator: 农场主
Last updated: 2026-10-22 16:01:40

Sub-knowledge points

Dipole-dipole coupling mechanismSpectral overlap integralOrientation factor (κ²)

Higher-order knowledge points

Molecular FRETBimolecular FRETFRET-based biosensing

Main parameters and performance indicators

Förster radius (R0): The distance at which energy transfer efficiency is 50%.Donor-acceptor distance: Typically effective within 1-10 nm.Spectral overlap: Integral of donor emission and acceptor absorption spectra.

Open problems

Precise control of distance and orientation in complex biological environments.Minimizing non-specific interactions in heterogeneous sensing platforms.

Related literature

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Modulating excited-state dynamics in RhB@Cd-MOF composites: spectroscopic elucidation of PET-driven quenching and ACQ- suppressed radiative enhancement for differential fluorescence sensingOpen source

荧光共振能量转移

Sub-knowledge points

Higher-order knowledge points

Main parameters and performance indicators

Open problems

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