Sentences with phrase «reaction sites»

In light of the results of synthetic organic chemistry and the ability of molecular machines to make reactions site specific, it seems difficult to maintain that nonprotein machine components can not be built and assembled.

Regardless, the result is a satisfying full - circuit ride for Solomon, who in 1986 led the study that first identified stratospheric clouds as the chlorine reaction sites, and who played important roles in the scientific assessments for the Montreal Protocol and subsequent status reports.

The most important breakthrough, says Fréchet, has been to make dual reaction sites that are self - generating as the structure grows, so the process is a chain reaction.

In the hybrid system the conductive carbon incorporated into SnS2 provides the opportunities for fast charge transport in the nanostructure with an interconnected planar structure, thus shortening the diffusion time from semiconductor interior to surface reaction sites.

Also, there are new kinds of freedom that traditional chemistry doesn't have, including freedom to select from nearly identical reaction sites, and freedom to keep very reactive molecules from touching anything until you're ready.

Just as important, both of the reaction sites attract the next monomer equally, ensuring that the tree grows in a highly random way.

In this work, we propose an in - situ carbon doped SnS2 nanostructure system with limited average lifetime of photo - generated electrons and holes by shortening the diffusion time so that they can reach the reaction sites before losing their energy.

These light - harvesting «antennae» transmit this photonic energy as excitations of electrons through a series of quantum mechanically linked chlorophyll molecules to a reaction site where the trapped energy catalyzes the manufacture of energy - storing sugars.

«With both this performance and the atomic visualization of the reaction sites, we are closing the gap to replace platinum with a high - performance catalyst poised to be scaled up for potential application in fuel cells for automotive applications,» said Karren More, ORNL microscopy team lead.

Indeed, as tool - wielding protein systems can control the chemical environment of a reaction site completely, they should be able, at a minimum, to duplicate the full range of moderate - temperature synthetic steps achieved by organic chemists.

By the time Yucca would be filled to capacity in 2036, there will still be at least the same amount of spent fuel still stored at the reaction sites, even if no new plants are built.