'World's first man-made leaves' could use photosynthesis to help astronauts breathe - Gadgets and Tech - Life and Style. The leaves, created by Royal College of Art student Julian Melchiorri, absorb water and carbon dioxide just like real plants but are made from tough silk proteins that could let them survive space voyages. Melchiorri, who was interviewed by design site Dezeen, explains: "NASA is researching different ways to produce oxygen for long-distance space journeys to let us live in space. This material could allow us to explore space much further than we can now. " Image credit: Julian Melchiorri The cholorplasts are extracted from real leaves and suspended in a matri of silk proteins. Image credit: Julian Melchiorri The Silk Leaf project was engineered in collaboration with Tufts University silk lab, which helped Melchiorri extract chloroplasts from real leaves and suspend them in a silk matrix.
"The material is extracted directly from the fibres of silk," explains Melchiorri. Solving Quantum Ground-State Problems with Nuclear Magnetic Resonance : Scientific Reports. State initialization In this experiment, we used a sample of the 13C-labeled Diethyl-fluoromalonate dissolved in the 2H-labeled chloroform as a three-qubit computer, where the nuclear spins of the 13C and the1H were used as the system qubits, and that of the 19F was used as the probe qubit. The structure of the molecule is shown in Fig. 1a of the main text, and the physical properties are listed in the table of Fig. 1b.
Starting from the thermal equilibrium state, we first created the pseudo-pure state (PPS) using the standard spatial average technique27. Here, ε≈10−5 quantifies the strength of the polarization of the system, and II is the 8 × 8 identity matrix. By a pseudo-Hadamard gate , where, Here, α = x, y, z, is a rotation operation applied to the qubit j. Finally, the system qubits are prepared to the initial state, by applying two single-qubit rotations and one controlled-rotation. Construction of the controlled-U(t) where (alternatively, Iz); to simulate controlled-Vyz(t), we set state. EMSL: News. Scientists at EMSL are using cryogenic NMR equipment and theory to understand the complicated workings of a set of molecules called the oxygen-evolving complex, a central part of photosynthesis.
Harnessing a synthetic photosynthesis process that splits water molecules using solar energy could help meet global energy demands with a sustainable energy source. A key to understanding and controlling such a process lies at understanding the photoactive protein complexes found in plants and algae and photosynthetic bacteria. Despite significant efforts within the scientific community, important aspects of the electronic and molecular structure of the set of atoms called the oxygen-evolving complex (OEC) within these proteins remains a mystery. A team of scientists has combined unique experimental and advanced computational methods available within EMSL to look deep inside a model version of the OEC to learn its secrets in hopes of resolving the structural questions.
Solid-state NMR of nanomachines involved in... [Annu Rev Biophys. 2013. Solid-state NMR of nanomachines involved in... [Annu Rev Biophys. 2013.