نتایج جستجو برای: resonance energy

تعداد نتایج: 860483  

Journal: :Chemical communications 2014
Christopher M Spillmann Susan Buckhout-White Eunkeu Oh Ellen R Goldman Mario G Ancona Igor L Medintz

Photonic wires were constructed by sequentially arranging up to 7 fluorophores along a concatenated DNA scaffold. This yielded nanostructures displaying from one- to six-energy transfer steps where end-to-end efficiency reflected the multiple underlying photophysical processes and the ability of long-range interactions to compensate for localized non-ideal dye behaviour.

Journal: :Chemical communications 2011
Chenghui Liu Zhe Wang Hongxia Jia Zhengping Li

Graphene oxide can act as an ultrahighly efficient quencher for upconversion nanophosphors and thus, an extraordinarily sensitive biosensing platform is constructed.

Journal: :Chemical communications 2007
Longtian Kang Yu Chen Debao Xiao Aidong Peng Fugang Shen Xun Kuang Hongbing Fu Jiannian Yao

We successfully prepared organic core/diffuse-shell nanorods, which presents fluorescence resonance energy transfer from the core to shell components.

Journal: :Chembiochem : a European journal of chemical biology 2013
Elke Socher Barbara Imperiali

Caught in the act: The FRET-Capture approach exploits a bound solvatochromic fluorophore, 4-N,N-dimethylamino-1,8-naphthalimide, as a FRET donor in both inter- and intramolecular energy transfer. A unique feature of this method is the additional level of signal selectivity as the FRET signal is only turned on when the donor is specifically bound to the protein of interest, eliminating high back...

Journal: :Physical review letters 2011
Jan Junis Rindermann Galia Pozina Bo Monemar Lars Hultman Hiroshi Amano Pavlos G Lagoudakis

We investigate the dependence of resonance energy transfer from Wannier-Mott excitons to an organic overlayer on exciton dimensionality. We exploit the excitonic potential disorder in a single quantum well to tune the balance between localized and free excitons by scaling the Boltzmann distribution of excitons through temperature. Theoretical calculations predict the experimentally observed tem...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2011
Song Zhang Jie Ren Baowen Li

Energy transport control in low dimensional nanoscale systems has attracted much attention in recent years. In this paper, we investigate the energy transport properties of the Frenkel-Kontorova lattice subject to a periodic driving force, in particular, the resonance behavior of the energy current by varying the external driving frequency. It is discovered that, in certain parameter ranges, mu...

2013
Leonardo G. Diniz José Rachid Mohallem Alexander Alijah Michele Pavanello Ludwik Adamowicz Oleg L. Polyansky Jonathan Tennyson

Using the core-mass approach, we have generated a vibrational-mass surface for the triatomic H3+. The coordinate-dependent masses account for the off-resonance nonadiabatic coupling and permit a very accurate determination of the rovibrational states using a single potential energy surface. The new, high-precision measurements of 12 rovibrational transitions in the ν2 bending fundamental of H3+...

Ali Reza Berenji Hadi Behzadi Hossein Eshghi Maesam Raeisian Mohammad Vakili, Raheleh Afzali

Two possible isomers of some 1,3-diaryl-H-benzo[f]chromene have been studied using density functional theory. Structures of E1 and E2 isomers were optimized at the B3LYP and MP2 levels with different basis sets. The total electronic energies show that E2 isomer is about 3-5 kcal/mol more stable than E1 isomer and this energy difference is attributed to the planarity of heterocyclic ring and mor...

Ali Reza Berenji Hadi Behzadi Hossein Eshghi Maesam Raeisian Mohammad Vakili, Raheleh Afzali

Two possible isomers of some 1,3-diaryl-H-benzo[f]chromene have been studied using density functional theory. Structures of E1 and E2 isomers were optimized at the B3LYP and MP2 levels with different basis sets. The total electronic energies show that E2 isomer is about 3-5 kcal/mol more stable than E1 isomer and this energy difference is attributed to the planarity of heterocyclic ring and mor...

2010
Vinod R Challa M G Prasad Frank T Fisher

Future deployment of wireless sensor networks will ultimately require a self-sustainable local power source for each sensor, and vibration energy harvesting is a promising approach for such applications. A requirement for efficient vibration energy harvesting is to match the device and source frequencies. While techniques to tune the resonance frequency of an energy harvesting device have recen...

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