Search Results - "Stephen, R. Meech"

Ultrafast Excimer Formation and Solvent Controlled Symmetry Breaking Charge Separation in the Excitonically Coupled Subphthalocyanine Dimer by Roy, Palas, Bressan, Giovanni, Gretton, Jacob, Cammidge, Andrew N., Meech, Stephen R.

“…Knowledge of the factors controlling excited state dynamics in excitonically coupled dimers and higher aggregates is critical for understanding natural and…”
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Ultrafast motion in a third generation photomolecular motor by Roy, Palas, Browne, Wesley R., Feringa, Ben L., Meech, Stephen R.

“…Controlling molecular translation at the nanoscale is a key objective for development of synthetic molecular machines. Recently developed third generation…”
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Low-Frequency Modes of Aqueous Alkali Halide Solutions: Glimpsing the Hydrogen Bonding Vibration by Heisler, Ismael A, Meech, Stephen R

“…The solvation of ions in aqueous media is a fundamental process in biology and chemistry. Here, we report direct time-domain observations of the hydrogen bond…”
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Ultrafast Dynamics in Light-Driven Molecular Rotary Motors Probed by Femtosecond Stimulated Raman Spectroscopy by Hall, Christopher R, Conyard, Jamie, Heisler, Ismael A, Jones, Garth, Frost, James, Browne, Wesley R, Feringa, Ben L, Meech, Stephen R

“…Photochemical isomerization in sterically crowded chiral alkenes is the driving force for molecular rotary motors in nanoscale machines. Here the excited-state…”
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Chemically Optimizing Operational Efficiency of Molecular Rotary Motors by Conyard, Jamie, Cnossen, Arjen, Browne, Wesley R, Feringa, Ben L, Meech, Stephen R

“…Unidirectional molecular rotary motors that harness photoinduced cis–trans (E–Z) isomerization are promising tools for the conversion of light energy to…”
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Ultrafast dynamics in the power stroke of a molecular rotary motor by Conyard, Jamie, Addison, Kiri, Heisler, Ismael A., Cnossen, Arjen, Browne, Wesley R., Feringa, Ben L., Meech, Stephen R.

“…Light-driven molecular motors convert light into mechanical energy through excited-state reactions. Unidirectional rotary molecular motors based on chiral…”
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A new twist in the photophysics of the GFP chromophore: a volume-conserving molecular torsion couple by Conyard, Jamie, Heisler, Ismael A, Chan, Yohan, Bulman Page, Philip C, Meech, Stephen R, Blancafort, Lluís

“…The simple structure of the chromophore of the green fluorescent protein (GFP), a phenol and an imidazolone ring linked by a methyne bridge, supports an…”
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Photoactivation of the BLUF Protein PixD Probed by the Site-Specific Incorporation of Fluorotyrosine Residues by Gil, Agnieszka A, Laptenok, Sergey P, Iuliano, James N, Lukacs, Andras, Verma, Anil, Hall, Christopher R, Yoon, Grace E, Brust, Richard, Greetham, Gregory M, Towrie, Michael, French, Jarrod B, Meech, Stephen R, Tonge, Peter J

“…The flavin chromophore in blue-light-using FAD (BLUF) photoreceptors is surrounded by a hydrogen bond network that senses and responds to changes in the…”
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THz Spectra and Dynamics of Aqueous Solutions Studied by the Ultrafast Optical Kerr Effect by Mazur, Kamila, Heisler, Ismael A, Meech, Stephen R

“…The nature and extent of the effects that hydrophilic and hydrophobic solutes have on the dynamics of water molecules continues to be an area of intense…”
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Proteins in Action: Femtosecond to Millisecond Structural Dynamics of a Photoactive Flavoprotein by Brust, Richard, Lukacs, Andras, Haigney, Allison, Addison, Kiri, Gil, Agnieszka, Towrie, Michael, Clark, Ian P, Greetham, Gregory M, Tonge, Peter J, Meech, Stephen R

“…Living systems are fundamentally dependent on the ability of proteins to respond to external stimuli. The mechanism, the underlying structural dynamics, and…”
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Water Dynamics at Protein Interfaces: Ultrafast Optical Kerr Effect Study by Mazur, Kamila, Heisler, Ismael A, Meech, Stephen R

“…The behavior of water molecules surrounding a protein can have an important bearing on its structure and function. Consequently, a great deal of attention has…”
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Ultrafast dynamics in complex fluids observed through the ultrafast optically-heterodyne-detected optical-Kerr-effect (OHD-OKE) by Hunt, Neil T, Jaye, Andrew A, Meech, Stephen R

“…The ultrafast molecular dynamics of complex fluids have been recorded using the optically-heterodyne-detected optical-Kerr-effect (OHD-OKE). The OHD-OKE method…”
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Ultrafast Excited State Dynamics in Molecular Motors: Coupling of Motor Length to Medium Viscosity by Conyard, Jamie, Stacko, Peter, Chen, Jiawen, McDonagh, Sophie, Hall, Christopher R, Laptenok, Sergey P, Browne, Wesley R, Feringa, Ben L, Meech, Stephen R

“…Photochemically driven molecular motors convert the energy of incident radiation to intramolecular rotational motion. The motor molecules considered here…”
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Reactive Dynamics in Confined Liquids: Ultrafast Torsional Dynamics of Auramine O in Nanoconfined Water in Aerosol OT Reverse Micelles by Heisler, Ismael A, Kondo, Minako, Meech, Stephen R

“…The effects of confinement on the ultrafast torsional reaction of auramine O in aqueous solution are investigated through ultrafast fluorescence up-conversion…”
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Functional dynamics of a single tryptophan residue in a BLUF protein revealed by fluorescence spectroscopy by Karadi, Kristof, Kapetanaki, Sofia M., Raics, Katalin, Pecsi, Ildiko, Kapronczai, Robert, Fekete, Zsuzsanna, Iuliano, James N., Collado, Jinnette Tolentino, Gil, Agnieszka A., Orban, Jozsef, Nyitrai, Miklos, Greetham, Greg M., Vos, Marten H., Tonge, Peter J., Meech, Stephen R., Lukacs, Andras

“…Blue Light Using Flavin (BLUF) domains are increasingly being adopted for use in optogenetic constructs. Despite this, much remains to be resolved on the…”
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Time-Resolved Twisting Dynamics in a Porphyrin Dimer Characterized by Two-Dimensional Electronic Spectroscopy by Camargo, Franco V. A, Anderson, Harry L, Meech, Stephen R, Heisler, Ismael A

“…Molecular conformational changes in electronic excited states play a key role in numerous light-activated processes. In the case of porphyrin oligomers…”
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Excited state reactions in fluorescent proteins by Meech, Stephen R

“…The green fluorescent protein is a key technology in bioimaging. In this critical review, we consider how its various applications can be tailored from…”
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Complete Proton Transfer Cycle in GFP and Its T203V and S205V Mutants by Laptenok, Sergey P., Lukacs, Andras, Gil, Agnieszka, Brust, Richard, Sazanovich, Igor V., Greetham, Gregory M., Tonge, Peter J., Meech, Stephen R.

“…Proton transfer is critical in many important biochemical reactions. The unique three‐step excited‐state proton transfer in avGFP allows observations of…”
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Excited-State Dynamics in the Green Fluorescent Protein Chromophore by Mandal, Debabrata, Tahara, Tahei, Meech, Stephen R

“…The remarkable suppression of radiationless decay by the green fluorescent protein (GFP) is investigated through ultrafast fluorescence spectroscopy of its…”
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Full Characterization of Vibrational Coherence in a Porphyrin Chromophore by Two-Dimensional Electronic Spectroscopy by Camargo, Franco V. A, Anderson, Harry L, Meech, Stephen R, Heisler, Ismael A

“…In this work we present experimental and calculated two-dimensional electronic spectra for a 5,15-bisalkynyl porphyrin chromophore. The lowest energy…”
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