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Energy dissipations in chlorosomes: Emission from the Q(sub y) state following singlet-singlet and triplet-triplet annihilation reactions in the cylindrical aggregate and its reversible dissociation into the piggy-back dimers

Article Abstract:

The excited-state dynamics of chlorosomes from Chlorobium tepidum, upon excitation above the Soret state, was examined by pump-and-probe time-resolved absorption spectroscopy in the subpicosecond to millisecond time region. It is observed that the relaxation processes that accompany the dissipation of the excited-state and the thermal energies vary depending on the time range and the amount of photons supplied.

Excited state chemistry, Absorption spectra, Reversible processes (Thermodynamics)

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Single-molecule study of protein-protein interaction dynamics in a cell signaling system

Article Abstract:

A study on protein-protein noncovalent interaction in an intracellular signaling protein complex, using single-molecule spectroscopy and molecular dynamics simulations is reported. The findings indicate static and dynamic inhomogeneous conformational fluctuations of the protein complex that involve bound and loosely bound states.

Proteins, Molecular dynamics, Chemistry, Physical and theoretical, Physical chemistry, Structure, Chemical properties, Atomic properties

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