scholarly journals Photoinduced non-adiabatic energy transfer pathways in dendrimer building blocks

2019 ◽  
Vol 150 (12) ◽  
pp. 124301 ◽  
Author(s):  
V. M. Freixas ◽  
D. Ondarse-Alvarez ◽  
S. Tretiak ◽  
D. V. Makhov ◽  
D. V. Shalashilin ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Building Blocks ◽  
Adiabatic Energy

The hydrogen-bond configuration modulates the energy transfer efficiency in helical protein nanotubes

Nanoscale ◽  
2021 ◽  
Author(s):  
Jinlong He ◽  
Lin Zhang ◽  
Ling Liu
Keyword(s):  
Hydrogen Bond ◽  
Energy Transfer ◽  
Building Blocks ◽  
Energy Transfer Efficiency ◽  
Transfer Efficiency ◽  
Helical Structures ◽  
Helical Protein ◽  
Protein Nanotubes

As fundamental building blocks of proteins, helices take different forms including the 310-, α-, and π-helices that feature distinct H-bond networks. The H-bond connectivity is shown to modulate energy transfer efficiency in protein helical structures.

scholarly journals Non-adiabatic excited state molecular dynamics of phenylene ethynylene dendrimer using a multiconfigurational Ehrenfest approach

2016 ◽  
Vol 18 (15) ◽  
pp. 10028-10040 ◽  
Author(s):  
Sebastian Fernandez-Alberti ◽  
Dmitry V. Makhov ◽  
Sergei Tretiak ◽  
Dmitrii V. Shalashilin
Keyword(s):  
Molecular Dynamics ◽  
Energy Transfer ◽  
Excited State ◽  
Building Blocks ◽  
Time Dependent ◽  
Phenylene Ethynylene

Photoinduced dynamics of electronic and vibrational unidirectional energy transfer between meta-linked building blocks in a phenylene ethynylene dendrimer is simulated using a multiconfigurational Ehrenfest in time-dependent diabatic basis (MCE-TDDB) method.

Adiabatic energy transfer from a pump wave to its second harmonic

1995 ◽  
Vol 25 (7) ◽  
pp. 638-640 ◽  
Author(s):  
N B Baranova ◽  
M A Bolshtyanskii ◽  
Boris Ya Zel'dovich
Keyword(s):  
Energy Transfer ◽  
Pump Wave ◽  
Second Harmonic ◽  
Adiabatic Energy

Energy transfer within self-assembled cyclic multichromophoric arrays based on orthogonally arranged donor–acceptor building blocks

2015 ◽  
Vol 185 ◽  
pp. 433-454 ◽  
Author(s):  
Nikolaos Karakostas ◽  
Antonia Kaloudi-Chantzea ◽  
Elisabeth Martinou ◽  
Kostas Seintis ◽  
Florian Pitterl ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Building Blocks ◽  
Electronic Excitation Energy ◽  
Efficient Energy Transfer ◽  
Time Resolved ◽  
Perylene Bisimide ◽  
Polygonal Chain ◽  
Structural Deformations ◽  
Donor Acceptor

We herein present the coordination-driven supramolecular synthesis and photophysics of a [4+4] and a [2+2] assembly, built up by alternately collocated donor–acceptor chromophoric building blocks based, respectively, on the boron dipyrromethane (Bodipy) and perylene bisimide dye (PBI). In these multichromophoric scaffolds, the intensely absorbing/emitting dipoles of the Bodipy subunit are, by construction, cyclically arranged at the corners and aligned perpendicular to the plane formed by the closed polygonal chain comprising the PBI units. Steady-state and fs time-resolved spectroscopy reveal the presence of efficient energy transfer from the vertices (Bodipys) to the edges (PBIs) of the polygons. Fast excitation energy hopping – leading to a rapid excited state equilibrium among the low energy perylene-bisimide chromophores – is revealed by fluorescence anisotropy decays. The dynamics of electronic excitation energy hopping between the PBI subunits was approximated on the basis of a theoretical model within the framework of Förster energy transfer theory. All energy-transfer processes are quantitatively describable with Förster theory. The influence of structural deformations and orientational fluctuations of the dipoles in certain kinetic schemes is discussed.

Reactivity Tuning for Radical–Radical Cross-Coupling via Selective Photocatalytic Energy Transfer: Access to Amine Building Blocks

ACS Catalysis ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 10454-10463 ◽  
Author(s):  
Vineet Kumar Soni ◽  
Sumin Lee ◽  
Jihee Kang ◽  
Yu Kyung Moon ◽  
Ho Seong Hwang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Cross Coupling ◽  
Building Blocks

scholarly journals Boradiazaindacene (Bodipy)-based building blocks for the construction of energy transfer cassettes

2009 ◽  
Vol 50 (15) ◽  
pp. 1738-1740 ◽  
Author(s):  
Gokhan Barin ◽  
M. Deniz Yilmaz ◽  
Engin U. Akkaya
Keyword(s):  
Energy Transfer ◽  
Building Blocks ◽  
Energy Transfer Cassettes

scholarly journals A Versatile Multiple Target Detection System Based on DNA Nano-assembled Linear FRET Arrays

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Yansheng Li ◽  
Hongwu Du ◽  
Wenqian Wang ◽  
Peixun Zhang ◽  
Liping Xu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Target Detection ◽  
Fluorescence Spectra ◽  
Detection System ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Building Blocks ◽  
Multiple Target ◽  
Multiplex Detection ◽  
Fluorescent Resonance Energy Transfer

Abstract DNA molecules have been utilized both as powerful synthetic building blocks to create nanoscale architectures and as inconstant programmable templates for assembly of biosensors. In this paper, a versatile, scalable and multiplex detection system is reported based on an extending fluorescent resonance energy transfer (FRET) cascades on a linear DNA assemblies. Seven combinations of three kinds of targets are successfully detected through the changes of fluorescence spectra because of the three-steps FRET or non-FRET continuity mechanisms. This nano-assembled FRET-based nanowire is extremely significant for the development of rapid, simple and sensitive detection system. The method used here could be extended to a general platform for multiplex detection through more-step FRET process.

scholarly journals Manipulation of Energy Transfer Processes in Nanochannels

2009 ◽  
Vol 2009 ◽  
pp. 1-9 ◽  
Author(s):  
André Devaux ◽  
Gion Calzaferri
Keyword(s):  
Energy Transfer ◽  
Large Scale ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Building Blocks ◽  
Large Scale Structures ◽  
Zeolite L ◽  
Supramolecular Organisation ◽  
Scale Structures ◽  
Optical Applications

The realisation of molecular assemblies featuring specific macroscopic properties is a prime example for the versatility of supramolecular organisation. Microporous materials such as zeolite L are well suited for the preparation of host-guest composites containing dyes, complexes, or clusters. This short tutorial focuses on the possibilities offered by zeolite L to study and influence Förster resonance energy transfer inside of its nanochannels. The highly organised host-guest materials can in turn be structured on a larger scale to form macroscopic patterns, making it possible to create large-scale structures from small, highly organised building blocks for novel optical applications.

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