A method of increasing gene expression by manipulating the circadian clock is described that includes transforming a photosynthetic organism to include an expression control sequence that modulates the expression of a clock gene to increase expression of a target gene. Photosynthetic organism having a modified circadian cycle reflecting this method are also described.

A method of increasing gene expression by manipulating the circadian clock is described that includes transforming a photosynthetic organism to include an expression control sequence that modulates the expression of a clock gene to increase expression of a target gene. Photosynthetic organism having a modified circadian cycle reflecting this method are also described.

The present invention generally relates to photocatalytic systems comprising graphene and associated methods. Some embodiments are directed to systems comprising one or more layers of graphene having a first surface and a second, opposed surface. A light-absorbing complex may be associated with the first surface of the one or more graphene layers, and an electron donor complex may be associated with the light-absorbing complex. A catalytic complex may be associated with the first surface or the second surface of the one or more graphene layers. For example, the catalytic complex may catalyze the formation of hydrogen gas, NADH, and/or NADPH.

Methods which utilize a self-assembled structure formed of a plurality of peptides being of from 2 to 6 amino acids in length, and comprising at least one aromatic amino acid residue, wherein the self-assembled structure is capable of interacting with oxygen, are provided herewith. The methods may be for controlling (e.g., reducing) a concentration of free oxygen in an environment, and/or for transporting oxygen from a first environment to a second environment. Further described herein is a self-assembled structure as described herein having oxygen interacted therewith. Further described herein is a composition comprising the self-assembled structure and substance which is oxygen-sensitive and/or participates in an oxygen-sensitive reaction incorporated in the self-assembled structure, systems comprising such a composition and methods employing the composition or system. Further described herein are articles-of-manufacturing comprising any of the self-assembled structures or compositions as described herein and an oxygen-sensitive substance and uses thereof.

The present invention generally relates to photocatalytic systems comprising graphene and associated methods. Some embodiments are directed to systems comprising one or more layers of graphene having a first surface and a second, opposed surface. A light-absorbing complex may be associated with the first surface of the one or more graphene layers, and an electron donor complex may be associated with the light-absorbing complex. A catalytic complex may be associated with the first surface or the second surface of the one or more graphene layers. For example, the catalytic complex may catalyze the formation of hydrogen gas, NADH, and/or NADPH.

Provided herein is a method of producing a functional group in a target compound using a biocatalyst as described in more detail herein. Also provided are related systems and compositions.