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Beads, Boats And Switches: Making Things Happen With Molecular Photoswitches, Robert P. Byrne, Silvia Scaramagnani, Michael J. Higgins, Gordon G. Wallace, Dermot Diamond
Beads, Boats And Switches: Making Things Happen With Molecular Photoswitches, Robert P. Byrne, Silvia Scaramagnani, Michael J. Higgins, Gordon G. Wallace, Dermot Diamond
Faculty of Science - Papers (Archive)
In this paper we present recent results obtained with a stimulus-responsive materials based on the photo-switchable behaviour exhibited by spiro-cyclic derivatives. Our results suggest that these highly novel materials offer unique capabilities hitherto inaccessible using conventional materials. In particular, we will focus on photocontrolled guest binding and release, inherent signalling of status, photo-actuation and solvent driven motion of small structures as examples of the fascinating behaviour of these exceptional materials. Copyright 2009 IEEE NANO Organizers.
A Bio-Inspired Molecular Catalyst That Selectively Catalyzes Water Oxidation In Seawater, Without Significant Chlorine Formation, Robin Brimblecombe, G. Charles Dismukes, Gerhard F. Swiegers, Leone Spiccia
A Bio-Inspired Molecular Catalyst That Selectively Catalyzes Water Oxidation In Seawater, Without Significant Chlorine Formation, Robin Brimblecombe, G. Charles Dismukes, Gerhard F. Swiegers, Leone Spiccia
Faculty of Science - Papers (Archive)
Most transport fuels are derived from fossil fuels, generate greenhouse gases, and consume significant amounts of water in the extraction, purification, and/or burning processes. The generation of hydrogen using solar energy to split water, ideally from sea water or other non-potable sources, could potentially provide an unlimited, clean fuel for the future. Solar, electrochemical water splitting typically combines a photoanode at which water oxidation occurs, with a cathode for proton reduction to hydrogen. In recent work we have found that a bioinspired tetra-manganese cluster catalyzes water oxidation at relatively low overpotentials (0.38 V) when doped into a Nafion proton conduction …
Molecular Water Oxidation Catalysts For Photoelectrochemical Cells, Robin Brimblecombe, Charles Dismukes, Gerhard F. Swiegers, Leone Spiccia
Molecular Water Oxidation Catalysts For Photoelectrochemical Cells, Robin Brimblecombe, Charles Dismukes, Gerhard F. Swiegers, Leone Spiccia
Faculty of Science - Papers (Archive)
Photoelectrochemical cells that efficiently split water into oxygen and hydrogen, "the fuel of the future", need to combine robust water oxidation catalysts at the anode (2H(2)O -> O-2 + 4H(+) + 4e(-)) with hydrogen reduction catalysts at the cathode (2H(+) + 2e(-) -> H-2). Both sets of catalysts will, ideally, operate at low overpotentials and employ light-driven or light-assisted processes. In this Perspective article, we focus on significant efforts to develop solid state materials and molecular coordination complexes as catalyst for water oxidation. We briefly review the field with emphasis on the various molecular catalysts that have been developed and …
A Bio-Inspired Molecular Water Oxidation Catalyst For Renewable Hydrogen Generation: An Examination Of Salt Effects, Robin Brimblecombe, Miriam Rotstein, Annette Koo, G Charles Dismukes, Gerhard F. Swiegers, Leone Spiccia
A Bio-Inspired Molecular Water Oxidation Catalyst For Renewable Hydrogen Generation: An Examination Of Salt Effects, Robin Brimblecombe, Miriam Rotstein, Annette Koo, G Charles Dismukes, Gerhard F. Swiegers, Leone Spiccia
Faculty of Science - Papers (Archive)
Most transport fuels are derived from fossil fuels, generate greenhouse gases, and consume significant amounts of water in the extraction, purification, and/or burning processes. The generation of hydrogen using solar energy to split water, ideally from abundant water sources such as sea water or other non-potable sources, could potentially provide an unlimited, clean fuel for the future. Solar, electrochemical water splitting typically combines a photoanode at which water oxidation occurs, with a cathode for proton reduction to hydrogen. In recent work, we have found that a bioinspired tetra-manganese cluster catalyzes water oxidation at relatively low overpotentials (0.38 V) when doped …
Molecular And Morphological Description Of A Hepatozoon Species In Reptiles And Their Ticks In The Northern Territory, Australia, Inger-Marie E. Vilcins, Beata Ujvari, Julie M. Old, Elizabeth Deane
Molecular And Morphological Description Of A Hepatozoon Species In Reptiles And Their Ticks In The Northern Territory, Australia, Inger-Marie E. Vilcins, Beata Ujvari, Julie M. Old, Elizabeth Deane
Faculty of Science - Papers (Archive)
Ticks, representing 3 species of Amblyomma, were collected from the water python (Liasis fuscus) and 3 additional reptile species in the Northern Territory, Australia, and tested for the presence of Hepatozoon sp., the most common blood parasites of snakes. In addition, blood smears were collected from 5 reptiles, including the water python, and examined for the presence of the parasite. Hepatozoon sp. DNA was detected in all tick and reptile species, with 57.7% of tick samples (n = 187) and 35.6% of blood smears (n = 35) showing evidence of infection. Phylogenetic analysis of the 18S rRNA gene demonstrated that …
Nmr Study Of Complexes Between Low Molecular Mass Inhibitors And The West Nile Virus Ns2b-Ns3 Protease, X Su, Kiyoshi Ozawa, Hiromasa Yagi, S P. Lim, D Wen, D Ekonomiuk, D Huang, T Keller, S Sonntag, A Caflisch, S G. Vasudevan, G Otting
Nmr Study Of Complexes Between Low Molecular Mass Inhibitors And The West Nile Virus Ns2b-Ns3 Protease, X Su, Kiyoshi Ozawa, Hiromasa Yagi, S P. Lim, D Wen, D Ekonomiuk, D Huang, T Keller, S Sonntag, A Caflisch, S G. Vasudevan, G Otting
Faculty of Science - Papers (Archive)
The two-component NS2B-NS3 protease of West Nile virus is essential for its replication and presents an attractive target for drug development. Here, we describe protocols for the high-yield expression of stable isotope-labelled samples in vivo and in vitro. We also describe the use of NMR spectroscopy to determine the binding mode of new low molecular mass inhibitors of the West Nile virus NS2B-NS3 protease which were discovered using high-throughput in vitro screening. Binding to the substrate-binding sites S1 and S3 is confirmed by intermolecular NOEs and comparison with the binding mode of a previously identified low molecular mass inhibitor. Our …