A mechanical force accompanies fluorescence resonance energy transfer (FRET)

被引：22

作者：

Cohen, AE ^{[1
]}

Mukamel, S

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[2] Univ Rochester, Dept Chem, Rochester, NY 14627 USA

[3] Univ Rochester, Dept Phys, Rochester, NY 14627 USA

[4] Univ Rochester, Dept Astron, Rochester, NY 14627 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2003年 / 107卷 / 19期

关键词：

DISPERSION FORCES; MOLECULES;

D O I：

10.1021/jp022303g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We show that the coupling responsible for fluorescence resonance energy transfer (FRET) generates a mechanical force that is distinct from the van der Waals force between ground-state molecules and can be either attractive or repulsive. The underlying potential has the same 1/r(6) distance dependence as the rate of FRET, and the two are connected by a Kramers-Kronig relation. Just as the rate of FRET can be derived either classically or quantum mechanically, so too can the interaction potential. Because of the FRET force, time-resolved FRET measurements contain information on the mechanical stiffness of the matrix containing donor and acceptor.

引用

页码：3633 / 3638

页数：6

共 30 条

[1]

Agranovich V. M., 1982, Electronic Excitation Energy Transfer in Condensed Matter

[2]

Andrews D. L., 1999, Resonance Energy Transfer

[3]

[Anonymous], 1964, Introductory quantum electrodynamics

[4] Optical trapping of single fluorescent molecules at the detection spots of nanoprobes [J].

Calander, N ;

Willander, M .

PHYSICAL REVIEW LETTERS, 2002, 89 (14)

[5] EXPERIMENTAL-OBSERVATION OF OPTICALLY TRAPPED ATOMS [J].

CHU, S ;

BJORKHOLM, JE ;

ASHKIN, A ;

CABLE, A .

PHYSICAL REVIEW LETTERS, 1986, 57 (03) :314-317

[6]

Davydov A., 2013, Theory of Molecular Excitons

[7] *ZWISCHENMOLEKULARE ENERGIEWANDERUNG UND FLUORESZENZ [J].

FORSTER, T .

ANNALEN DER PHYSIK, 1948, 2 (1-2) :55-75

[8]

Freed KarlF., 1987, Renormalization Group Theory of Macromolecules

[9] DISTRIBUTION OF END-TO-END DISTANCES OF OLIGOPEPTIDES IN SOLUTION AS ESTIMATED BY ENERGY-TRANSFER [J].

HAAS, E ;

WILCHEK, M ;

KATCHALSKIKATZIR, E ;

STEINBERG, IZ .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1975, 72 (05) :1807-1811

[10] Unified treatment of asymptotic van der Waals forces [J].

Hult, E ;

Rydberg, H ;

Lundqvist, BI ;

Langreth, DC .

PHYSICAL REVIEW B, 1999, 59 (07) :4708-4713

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