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US 7,745,023 B2Granted
Structured material for the production of hydrogen
AssigneeRegents of the University of Minnesota
InventorsMichael C. Flickinger, Caroline S. Harwood, Federico Rey
Life of this patent
Estimating the term…
Abstract
The present invention provides composite biological devices that include biological material as an integral component thereof. The devices can be used for producing hydrogen gas, for example.
Claims61
A composite biological device comprising:
- a layered biostructure comprising a first phototrophic biological material embedded in a first polymer layer, a second phototrophic biological material embedded in a second polymer layer, and at least one additional porous layer that does not contain a phototrophic biological material,
- wherein each of the first phototrophic biological material and the second phototrophic biological material are metabolically active under non-growth conditions for at least 8 hours;
- and
- wherein each of the first phototrophic biological material and the second phototrophic biological material can produce H2 gas.
1 more element
A method of making a composite biological device, the method comprising:
- depositing at least one first polymer layer comprising a first phototrophic biological material embedded in the first polymer layer onto a first porous layer that does not contain a phototrophic biological material to form a first biological material containing surface, and
- depositing at least one second polymer layer comprising a second phototrophic biological material embedded in the second polymer layer onto a second porous layer that does not contain a phototrophic biological material to form a second biostructure having a biological material containing surface,
- wherein the first polymer layer establishes non-growth conditions for the first phototrophic biological material and the second polymer layer establishes non-growth conditions for the second phototrophic biological material,
- wherein each of the first phototrophic biological material and the second phototrophic biological material is metabolically active under the non-growth condition for at least 8 hours, and
- wherein each of the first phototrophic biological material and the second phototrophic biological material can produce H2 gas.
2 more elements
A composite biological device comprising:
- a layered biostructure comprising a polymer layer comprising a first phototrophic biological material and a second phototrophic biological material embedded in the polymer layer, and at least one additional porous layer that does not contain a phototrophic biological material,
- wherein each of the first biological material and the second biological material is metabolically active under non-growth conditions for at least 8 hours;
- and
- wherein each of the first phototrophic biological material and the second phototrophic biological material can produce H2 gas.
1 more element
A method of making a composite biological device, the method comprising:
- depositing at least one polymer layer comprising a first phototrophic biological material and a second phototrophic biological material embedded in the polymer layer onto a first porous layer that does not contain a phototrophic biological material,
- wherein the polymer layer establishes non-growth conditions for the first phototrophic biological material and the second phototrophic biological material,
- wherein each of the first phototrophic biological material and the second phototrophic biological material is metabolically active under the non-growth condition for at least 8 hours, and
- wherein each of the first phototrophic biological material and the second phototrophic biological material can produce H2 gas.
1 more element
A composite biological device comprising:
- a layered biostructure comprising a first phototrophic biological material embedded in a first polymer layer, a second phototrophic biological material embedded in a second polymer layer, and at least one additional porous layer that does not contain a phototrophic biological material,
- wherein each of the first phototrophic biological material and the second phototrophic biological material are metabolically active under non-growth conditions.
Dependencies are inferred from the claim text.