Baker N, Harbinson J and Kramer DM (2007) Determining the limitations and regulation of photosynthetic energy transduction in leaves. Plant, Cell & Environment 30: 1107–1125.
Struggling but pondering minds of naturalists have discovered a very unique approach to optimize energy needs of future. The concept is not much newer but getting famous now because of some breakthroughs in the field. The mystery of Artificial Photosynthesis is very simple in terms of scientific understanding but very tough in terms of taking form of technology.
a case study in artificial photosynthesis technology …
THE ROOTS of human evolution are closely linked with plant existence. The most important chemical process running in biological regimes is photosynthesis. The significance of this process can be assessed by the fact that biggest machinery providing food and oxygen to the world is dependent on this particular phenomenon. Each year green plants use to produce about one thousand billion metric tons of organic matter and over 700 billion metric tons of oxygen by using carbon dioxide. That organic matter is used as food by each and every secondary consumer including human beings. And oxygen is the only source for the process of breathing on planet. In this way photosynthesis is guarantor of survival and food security. Food production is the biggest attribute of this particular process. In this century energy crisis has emerged as one of the biggest conundrums along with food security, climate change and eco-degradation. We have to feed more number of mouths, have to run more number of vehicles, have to produce more electricity, have to explore more sources of fuel and surely have to find alternative energy options. Present scenario of energy worldwide is very alarming as the biggest hub in the form of fossil fuels (petroleum and gas) is depleting and nothing is there to replenish it. Scientists have tried a lot to discover renewable and non-conventional resources of energy to fulfill needs of modern era. But the problems associated to all such options are of critical nature limiting their feasibility and sustainability. For example wind or water energy requires large scale and complex installments and is not feasible everywhere in the world. Similarly the nuclear energy has wide range of environmental hazards and social concerns. Meanwhile solar energy has come up as a pragmatic option but still not much adaptable and practical. So, an energy source is required which will be more natural and long lasting.
Getting to the origins of photosynthesis -- ScienceDaily
For the artificial photosynthesis technology, they succeeded in forming a "CO2-formic acid conversion device" powered by solar power on a metal-oxide substrate by using pigments, viologen and formic acid dehydratase. They found that, by using titanium oxide as metal oxide, the efficiency of generating formic acid is improved about six times, eliminating the need for formic acid dehydratase. After that, by using an appropriate viologen, the efficiency was further improved about two times.
Below are relevant articles that ..
Kramer DM, Avenson TJ and Edwards GE (2004) Dynamic flexibility in the light reactions of photosynthesis governed by both electron and proton transfer reactions. Trends in Plant Science 9: 349–335.
Tiny 'forest' advances artificial photosynthesis - Futurity
This time, Iida GHD and the university developed two kinds of technologies. One is an artificial photosynthesis technology that uses solar energy to generate/store formic acid with a high efficiency and uses it to generate hydrogen. The other is a technology to use the generated hydrogen to generate electricity with a high efficiency.
03/01/2018 · Photosynthesis: Photosynthesis ..
Zhu XG, Long SP and Ort DR (2008) What is the maximum efficiency with which photosynthesis can convert solar energy into biomass? Current Opinion in Biotechnology 19: 153–159.