Biomolecular Photonic Device Consisting of Chl a/Chl b/Phycoerythrin/Phycocyanin Hetero Structure
In living organisms the photosynthesis involves the absorption of light by the light-harvesting (LH) antenna complexes. By mimicking the photosynthesis process the artificial photonic device composed of bio-molecular hetero structure is developed. The proposed photonic device is composed
of Chl a, Chl b, phycoerythrin and phycocyanin. To fabricate the highly ordered structure of biomolecules, the deposition of ordered Chl a/Chl b molecules onto solid substrates was done by the Langmuir-Blodgett (LB) technique, and the self-assembly technique was
used for the deposition of phycocyanin molecule. To optimize the photocurrent generation, the photoelectric response characteristics of Chl a and Chl b LB films were measured according to the number of deposition layers, and effects of phycocyanin layer and various phycoerythrin
concentrations on the photocurrent generation were analyzed. The biophotonic device was fabricated by the combination of the hetero biofilms and the photocurrent generation of the proposed device was observed. It was observed that the photocurrent generation of the proposed biodevice was improved
by using the appropriate biopigments to be selected. The proposed artificial biophotonic device consisting of biopigments can be used to generate photocurrent by mimikng the photosynthesis in living system.
Keywords: BIOPHOTONIC DEVICE; BIOPIGMENT; LANGMUIR-BLODGETT FILM; PHOTOCURRENT; SELF-ASSEMBLY
Document Type: Research Article
Publication date: 01 November 2006
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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