Plasmon-activated Forster energy transfer in molecular systems

نویسندگان

چکیده

To explain the experimentally observed effect of silver nanoparticles on fluorescence organic dyes and nonradiative intermolecular transfer electronic excitation energy in multilayer nanostructures, previously proposed theoretical model plasmon resonance spherical metals was used. The rates radiative (FRET) processes film structures with Ag were calculated for fluorescein rhodamine B molecules, as well two-component systems fluorescein-nile red (NR) B-NR. A version used that takes into account NPs FRET between decay donor acceptor from dye to plasmonic nanoparticles. calculation U DA rate pairs different efficiency showed a greater increase parameter pair than B-nile pair. Estimation enhancement factor molecules their insignificant contribution formation resulting presence NPs. Keywords: transfer, nanoparticles, plasmon,

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Additional correction for energy transfer efficiency calculation in filter-based Forster resonance energy transfer microscopy for more accurate results.

Forster resonance energy transfer (FRET) microscopy is commonly used to monitor protein interactions with filter-based imaging systems, which require spectral bleedthrough (or cross talk) correction to accurately measure energy transfer efficiency (E). The double-label (donor+acceptor) specimen is excited with the donor wavelength, the acceptor emission provided the uncorrected FRET signal and ...

متن کامل

Forster resonance energy transfer in liposomes: measurements of transmembrane helix dimerization in the native bilayer environment.

The lipid bilayer vesicle is a model of the cellular membrane. Even in this simple system, however, measuring the thermodynamics of membrane protein association is a challenge. Here we discuss Forster resonance energy transfer (FRET) in liposomes as a method to probe the dimerization of transmembrane helices in a membrane environment. Although the measurements are labor intensive, FRET in lipos...

متن کامل

Coherent versus incoherent excitation energy transfer in molecular systems.

We investigate the Markovian limit of a polaronic quantum master equation for coherent resonance energy transfer proposed recently by Jang et al. [J. Chem. Phys. 129, 101104 (2008)]. An expression for the rate of excitation energy transfer (EET) is derived and shown to exhibit both coherent and incoherent contributions. We then apply this theory to calculated EET rates for model dimer systems, ...

متن کامل

Tropomyosin dynamics in cardiac thin filaments: a multisite forster resonance energy transfer and anisotropy study.

Cryoelectron microscopy studies have identified distinct locations of tropomyosin (Tm) within the Ca(2+)-free, Ca(2+)-saturated, and myosin-S1-saturated states of the thin filament. On the other hand, steady-state Förster resonance energy transfer (FRET) studies using functional, reconstituted thin filaments under physiological conditions of temperature and solvent have failed to detect any mov...

متن کامل

Energy Transfer in Molecular Liquids

The existing information on the energy exchanges in molecular liquids is briefly reviewed. Main experimental methods are enumerated, and a phenomenological description of the observed material is given. The effects of various competing processes such as bond scission, conformational changes, twist-induced charge transfer, etc, are commented. Theoretical methods employed is this field, as well a...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Optics and Spectroscopy

سال: 2022

ISSN: ['0030-400X', '1562-6911']

DOI: https://doi.org/10.21883/eos.2022.05.54441.1-22