University of California

Marcin Majda

Jeffrey R Long

Christopher J Chang

Hemamala Indivari Karunadasa

New metal persulfido compositions of matter are described. In one embodiment the metal is molybdenum and the metal persulfido complex mimics the structure and function of the triangular active edge site fragments of MoS, a material that is the current industry standard for petroleum hydro desulfurization, as well as a promising low-cost alternative to platinum for electrocatalytic hydrogen production. This molecular [(PY5W)MoS]containing catalyst is capable of generating hydrogen from acidic-buffered water or even seawater at very low overpotentials at a turnover frequency rate in excess of 500 moles Hper mole catalyst per second, with a turnover number (over a 20 hour period) of at least 19,000,000 moles Hper mole of catalyst.

Molecular molybdenum persulfide and related catalysts for generating hydrogen from water

A method of detecting a target substance includes providing a number of molecular tethers at a channel surface of a sensor such that at least some of a plurality of beads, as a result of a biological interaction between a target substance and the tethers, are attached to the channel surface by the tethers or released from the channel's surface by cleaving the tethers. This method further includes introducing an analyte into the channel and determining the population of beads at the channel surface to indicate a presence of the target substance in the analyte.

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Berkeley, CA, United States of America

Marcin Majda