bioactive food components (such as phenolic compounds, carotenoids, anthocyanins, tochopherols, ascorbic acid, flavonoids, minerals, enzymes and pectin) are active ingredients in food or dietary supplements, which proven to have an important role in health, and are safe for human consumption. these compounds exert their antioxidant effects by different mechanisms such as single electron transfe...

Nowadays carbon nanoparticles are applied on the island of single electron transistor and Nano-transistors. The basis of single electron devices (SEDs) is controllable single electron transfer between small conducting islands. Based on the important points in quantum mechanics, when a wave passes through several spatial regions with different boundaries, the wave function of the first region di...

the binding, release and oxidation of oxygen occur at the heme group iron ion. hemoglobinoxidation-reduction studies have been previously performed using spectroelectrochemistry (sec) andhave provided insight into the hemoglobin electron transfer process and more specifically, into theheme group electronic factor and subunit interaction influences. in this study, the number of fullerenecarbon a...

Measurements of single-molecule chemical reaction kinetics are demonstrated for interfacial electron transfer from excited cresyl violet molecules to the conduction band of indium tin oxide (ITO) or energetically accessible surface electronic states under ambient conditions by using a far-field fluorescence microscope. In this system, each single molecule exhibits a single-exponential electron ...

Electrochemical electron transfer reactions are reviewed, starting with the works of Marcus and Hush, who evolved the concept of solvent reorganization. The resulting equations for the electrochemical rate constants are derived, and interpreted within the Gerischer formulation. A quantum mechanical version points out the importance of the electronic interaction between reactant and electrode, a...

Monolayer-protected nanoparticles exhibit unique electronic conductivity properties, which can be tailored by the combined effects of the conductive inorganic cores and the insulating organic shells. In scanning tunneling spectroscopic (STS) studies of isolated particles, the resulting current– potential (I–V) profile generally exhibits a Coulomb blockade in the central region, beyond which a C...