Stabilization effect of single-walled carbon nanotubes on the functioning of photosynthetic reaction centers

Article Abstract:

An investigation on the interaction between single-walled carbon nanotubes and photosynthetic reaction centers purified from purple bacterium Rhodobacter sphaeroides R-26 is conducted. Light-induced absorption change measurements point to the stabilization of the [P.sup.+]([Q.sub.A][Q.sub.B])- charge pair, which is formed after single saturating light excitation after the attachment to nanotubes.

Usage, Photosynthesis research, Bacterial proteins, Atomic force microscopy

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Physical adsorption strength in open systems

Article Abstract:

The distance dependence of the physisorption strength and effective adsorption capacity is characterized by using a simple analytical procedure. It is concluded that the adsorption energy at short and long distances is not changed and is most affected at intermediate distances.

Report

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Precise electronic chi(super 2) spectra of molecules adsorbed at an interface measured by multiplex sum frequency generation

Article Abstract:

A new technique to obtain a second-order nonlinear [chi (super 2)] electronic spectrum of molecules adsorbed at an interface is developed. The technique is based on multiplex sum frequency generation that utilizes femtosecond near-infrared pulses and white light continuum.

Near infrared spectroscopy

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