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To observe FRET, the following conditions must be met:
1) Donor and acceptor must have strong electronic transitions in the UV, visible, or IR.
2) Spectral overlap must exist between donor emission and acceptor absorbance
(see Section 3.5).
3) Donor and acceptor must be close, but not too close (see Sections 3.6 and 3.7).
4) The orientation factor should not be too small (see Section 3.8).
5) The donor emission should have a reasonably high quantum yield (see Equation 3.3 and also data in Chapter 14) |
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