Search Results - "Caprasecca, Stefano"
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Coupling to Charge Transfer States is the Key to Modulate the Optical Bands for Efficient Light Harvesting in Purple Bacteria
Published in The journal of physical chemistry letters (06-12-2018)“…The photosynthetic apparatus of purple bacteria uses exciton delocalization and static disorder to modulate the position and broadening of its absorption…”
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2
Geometry Optimization in Polarizable QM/MM Models: The Induced Dipole Formulation
Published in Journal of chemical theory and computation (08-04-2014)“…We present the mathematical derivation and the computational implementation of the analytical geometry derivatives for a polarizable QM/MM model (QM/MMPol). In…”
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3
Shaping excitons in light-harvesting proteins through nanoplasmonics
Published in Chemical science (Cambridge) (2018)“…Nanoplasmonics has been used to enhance molecular spectroscopic signals, with exquisite spatial resolution down to the sub-molecular scale. By means of a…”
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4
Theoretical Investigation of the Mechanism and Dynamics of Intramolecular Coherent Resonance Energy Transfer in Soft Molecules: A Case Study of Dithia-anthracenophane
Published in Journal of the American Chemical Society (01-12-2010)“…A computational study is conducted on dithia-anthracenophane (DTA), for which there is experimental evidence for coherent resonance energy transfer dynamics,…”
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5
Twin-to-Twin Transfusion Syndrome: Diagnostic Imaging and Its Role in Staving Off Malpractice Charges and Litigation
Published in Diagnostics (Basel) (04-03-2021)“…The study aims to expound upon the imaging-based diagnostic methodologies aimed at identifying twin-to-twin transfusion syndrome (TTTS), a serious, somewhat…”
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Excitation Energy Transfer in Donor-Bridge-Acceptor Systems: A Combined Quantum-Mechanical/Classical Analysis of the Role of the Bridge and the Solvent
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (21-08-2014)“…The technical application of excitation energy transfer requires a fine control of the geometry of the system. This can be achieved by introducing a chemical…”
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Hybrid QM/MM Molecular Dynamics with AMOEBA Polarizable Embedding
Published in Journal of chemical theory and computation (12-09-2017)“…We present the implementation of a Born–Oppenheimer (BO) hybrid quantum mechanics/molecular mechanics (QM/MM) molecular dynamics (MD) strategy using density…”
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On the description of the environment polarization response to electronic transitions
Published in International journal of quantum chemistry (05-01-2019)“…This paper addresses the issue of accurately describing the structures and properties of electronically excited systems embedded in an environment, through…”
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A QM/MM Approach Using the AMOEBA Polarizable Embedding: From Ground State Energies to Electronic Excitations
Published in Journal of chemical theory and computation (09-08-2016)“…A fully polarizable implementation of the hybrid quantum mechanics/molecular mechanics approach is presented, where the classical environment is described…”
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Shaping excitons in light-harvesting proteins through nanoplasmonicsElectronic supplementary information (ESI) available: Discussion of the metal extrinsic effect and of the inclusion of disorder; computed exciton energies, PRs and characters with and without MNPs; dissection of metal intrinsic effect on site energies, couplings, exciton localization, absorption spectra. See DOI: 10.1039/c8sc01162a
Published 25-07-2018“…Nanoplasmonics has been used to enhance molecular spectroscopic signals, with exquisite spatial resolution down to the sub-molecular scale. By means of a…”
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Shaping excitons in light-harvesting proteins through nanoplasmonics† †Electronic supplementary information (ESI) available: Discussion of the metal extrinsic effect and of the inclusion of disorder; computed exciton energies, PRs and characters with and without MNPs; dissection of metal intrinsic effect on site energies, couplings, exciton localization, absorption spectra. See DOI: 10.1039/c8sc01162a
Published in Chemical science (Cambridge) (19-06-2018)“…Through multiscale simulations, it is shown that nanoplasmonic tips can selectively localize the excitation in LH2 light-harvesting complex, narrowing down to…”
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Control of Coherences and Optical Responses of Pigment–Protein Complexes by Plasmonic Nanoantennae
Published in The journal of physical chemistry letters (16-06-2016)“…The key for light-harvesting in pigment–protein complexes are molecular excitons, delocalized excited states comprising a superposition of excitations at…”
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Achieving Linear Scaling in Computational Cost for a Fully Polarizable MM/Continuum Embedding
Published in Journal of chemical theory and computation (10-02-2015)“…In this paper, we present a new, efficient implementation of a fully polarizable QM/MM/continuum model based on an induced-dipoles polarizable force field and…”
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14
An Ab Initio Description of the Excitonic Properties of LH2 and Their Temperature Dependence
Published in The journal of physical chemistry. B (10-11-2016)“…The spectroscopic properties of light-harvesting (LH) antennae in photosyntehtic organisms represent a fingerprint that is unique for each specific…”
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Detection of Stop Sign Violations From Dashcam Data
Published in IEEE transactions on intelligent transportation systems (01-06-2022)“…In this article we present a novel machine learning pipeline for automatic detection of stop sign violations from dashcam videos, Inertial Measurement Units…”
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Coupling Real-Time Time-Dependent Density Functional Theory with Polarizable Force Field
Published in The journal of physical chemistry letters (02-11-2017)“…Real-time time-dependent density functional theory (RT-TDDFT) is a powerful tool for obtaining spectroscopic observables and understanding complex,…”
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17
Photoprotection and triplet energy transfer in higher plants: the role of electronic and nuclear fluctuations
Published in Physical chemistry chemical physics : PCCP (28-04-2016)“…Photosynthetic organisms employ several photoprotection strategies to avoid damage due to the excess energy in high light conditions. Among these, quenching of…”
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Toward a Unified Modeling of Environment and Bridge-Mediated Contributions to Electronic Energy Transfer: A Fully Polarizable QM/MM/PCM Approach
Published in Journal of chemical theory and computation (13-11-2012)“…Recent studies have unveiled the similar nature of solvent (screening) effects and bridge-mediated contributions to electronic energy transfer, both related to…”
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A polarizable QM/MM description of environment effects on NMR shieldings: from solvated molecules to pigment–protein complexes
Published in Theoretical chemistry accounts (01-06-2018)“…We present an investigation on the role of polarization effects within hybrid QM/MM approaches in determining the nuclear magnetic shieldings of molecular…”
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Excited-State Gradients in Polarizable QM/MM Models: An Induced Dipole Formulation
Published in Journal of chemical theory and computation (08-08-2017)“…Charge and structural relaxation of electronically excited states in embedded systems are strongly affected by the environment. It is known that the largest…”
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