Artificial Photosynthesis

  • Author: ChemViews
  • Published Date: 22 April 2011
  • Source / Publisher: ChemSusChem/Wiley-VCH
  • Copyright: WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: Artificial Photosynthesis

Related Societies

Many efforts have been made towards mimiking photosynthesis and making use of the practically unlimited supply of solar energy, and its conversion to chemical energy in different forms. Chan Beum Park, Korea Advanced Institute of Science and Technology, Daejeon, and colleagues provide the first report on light-harvesting synthetic wood (LSW) for biomimetic artificial photosynthesis.

During natural photosynthesis the energy of excited electrons, obtained from photons, generates a reducing power in the form of pyridine nucleotide cofactor, NAD(P)H. This photochemically regenerated NAD(P)H is consumed by redox enzymes during the reduction of CO2 to organic compounds. In the LSW system, the same mechanism takes place, allowing the production of fine chemicals by NAD(P)H-dependent enzymes.

Similar to the natural light-harvesting by chloroplasts, waterinsoluble porphyrins encapsulated in a lignocellulosic matrix enabled the utilization of light energy (see picture). Encapsulation was achieved through simultaneous lignocellulose coagulation and porphyrin reprecipitation. This porous lignocellulosic support (SW), a composite of the structural components of plant cells: cellulose, hemicellulose, and lignin, provides a microenvironment for porphyrin encapsulation and also allows an effective photosynthesis because of the inclusion of the redox-active lignin component.

Image: (C) Wiley-VCH

This work hints at a rational design of an artificial photosynthetic system by allowing the use of renewable natural biopolymers, facile fabrication under mild conditions, and an environmentally friendly process.

Article Views: 6815

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH