NDLI: Biosynthesis of Co<sub>3</sub>O<sub>4</sub> electrode materials by peptide and phage engineering: comprehension and future

Content Provider	Royal Society of Chemistry (RSC)
Author	Avalle, Bérangère Rosant, Cédric Dupont, Loïc Tarascon, Jean-Marie Friboulet, Alain Larcher, Dominique
Copyright Year	2012
Abstract	Biologically templated electrodes for Li-ion batteries are proposed. However, many questions regarding their practicality and their use on a large scale remain. Herein we revisit the phage-assisted synthesis of Co3O4 nanoparticles so as to identify the bio-chemistry/chemistry involved beyond this engineering phage synthetic approach and weigh its overall benefit. Various synthesis approaches to mimic the role of the phage which consist of using (i) wild or genetically modified phages made by insertions of specific peptides in the capsid protein, (ii) free peptides, and (iii) MWCNTs as the template were tried, and the resulting Co3O4 nanoparticles were checked for their morphology, size, organization, and electrochemical performances. We spotted the importance of a tetra-peptide motif in the Co3O4 nucleation/texturation process, whether this motif is part of the phage capsid or not, suggesting that the structure of the whole phage is not necessary for the production of the nanoparticles. In light of such findings the use of self-organized peptides or engineered bacteria for the templated synthesis of materials on a larger scale is proposed.
Starting Page	9936
Ending Page	9943
Page Count	8
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	5
Issue Number	12
Journal	Energy & Environmental Science
DOI	10.1039/c2ee22234e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Chemistry Bacteriophage Genetic engineering Capsid Protein Electrochemistry Nucleation
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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