The Optimization Team of the Bioarchitect Research Group studies integrated biological systems that have probably been optimized during evolution. Approaches toward the creation of novel biological functions on the basis of understanding optimized systems are characteristic of this team. As one of the optimized systems, symbiosis within the gut microbial community of termites has been studied, ...

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For the first time, the hydrogen evolution reaction (HER) electrocatalytic performances of incompressible γ-Mo0.5W0.5C, prepared by high-pressure, high-temperature (HPHT) synthesis, were investigated in the electrolyte. The polarization curve of the γ-Mo0.5W0.5C cathode exhibits the current density of 50 mA·cm−2 at an overpotential value of 320 mV. The corresponding Tafel slope of the incompres...

Persistent oxidative stress is one of the major causes of most lifestyle-related diseases, cancer and the aging process. Acute oxidative stress directly causes serious damage to tissues. Despite the clinical importance of oxidative damage, antioxidants have been of limited therapeutic success. We have proposed that molecular hydrogen (H(2)) has potential as a "novel" antioxidant in preventive a...

Beta-sheet protein domains are stabilized by weak hydrogen bonds, yet materials such as silk--whose ultimate tensile strength is controlled primarily by this secondary structure--can exceed the ultimate tensile strength of steel. Earlier work has suggested that this is because hydrogen bonds deform cooperatively within small protein domains to reach the maximum strength. Here we study the atomi...

■ This paper offers an overview of the technologies for hydrogen production. The technologies discussed are reforming of natural gas; gasification of coal and biomass; and the splitting of water by water-electrolysis, photo-electrolysis, photo-biological production and hightemperature decomposition. For all hydrogen production processes, there is a need for significant improvement in plant effi...

Recent studies have indicated that peroxidase might function in the biological synthesis of thyroxine by the thyroid gland. Johnson and Tewkesbury (1) believed that thyroxine might be formed by the oxidative coupling of 2 molecules of diiodotyrosine. Westerfeld and Lowe (2) studied the oxidative condensation of p-cresol by hydrogen peroxide and peroxidase and suggested that peroxidase might be ...

The program HBexplore is a new tool for identifying and analyzing hydrogen bonding patterns in biological macromolecules. It selects all potential hydrogen bonds according to geometrical criteria. The hydrogen bond table can then be subjected to further automatic or interactive analysis tools. These tools include the calculation of mean values and distributions of geometrical hydrogen bond para...

Recent studies have indicated that peroxidase might function in the biological synthesis of thyroxine by the thyroid gland. Johnson and Tewkesbury (1) believed that thyroxine might be formed by the oxidative coupling of 2 molecules of diiodotyrosine. Westerfeld and Lowe (2) studied the oxidative condensation of p-cresol by hydrogen peroxide and peroxidase and suggested that peroxidase might be ...

Recent studies have indicated that peroxidase might function in the biological synthesis of thyroxine by the thyroid gland. Johnson and Tewkesbury (1) believed that thyroxine might be formed by the oxidative coupling of 2 molecules of diiodotyrosine. Westerfeld and Lowe (2) studied the oxidative condensation of p-cresol by hydrogen peroxide and peroxidase and suggested that peroxidase might be ...