Cationic amino acids specific biomimetic silicification in ionic liquid: a quest to understand the formation of 3-D structures in diatoms

Ramanathan, R, Campbell, J, Soni, S, Bhargava, S and Bansal, V 2011, 'Cationic amino acids specific biomimetic silicification in ionic liquid: a quest to understand the formation of 3-D structures in diatoms', Plos One, vol. 6, no. 3, pp. 1-8.


Document type: Journal Article
Collection: Journal Articles

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Title Cationic amino acids specific biomimetic silicification in ionic liquid: a quest to understand the formation of 3-D structures in diatoms
Author(s) Ramanathan, R
Campbell, J
Soni, S
Bhargava, S
Bansal, V
Year 2011
Journal name Plos One
Volume number 6
Issue number 3
Start page 1
End page 8
Total pages 8
Publisher Public Library of Science
Abstract The intricate, hierarchical, highly reproducible, and exquisite biosilica structures formed by diatoms have generated great interest to understand biosilicification processes in nature. This curiosity is driven by the quest of researchers to understand nature's complexity, which might enable reproducing these elegant natural diatomaceous structures in our laboratories via biomimetics, which is currently beyond the capabilities of material scientists. To this end, significant understanding of the biomolecules involved in biosilicification has been gained, wherein cationic peptides and proteins are found to play a key role in the formation of these exquisite structures. Although biochemical factors responsible for silica formation in diatoms have been studied for decades, the challenge to mimic biosilica structures similar to those synthesized by diatoms in their natural habitats has not hitherto been successful. This has led to an increasingly interesting debate that physico-chemical environment surrounding diatoms might play an additional critical role towards the control of diatom morphologies. The current study demonstrates this proof of concept by using cationic amino acids as catalyst/template/scaffold towards attaining diatom-like silica morphologies under biomimetic conditions in ionic liquids.
Subject Nanobiotechnology
Keyword(s) 1 butyl 3 methylimidazolium tetrafluoroborate
arginine
cation
histidine
ionic liquid
lysine
molecular scaffold
silicon dioxide
amino acid
biomimetic material
article
biocatalyst
biomimetics
biosilification
biosynthesis
chemical analysis
chemical modification
chemical reaction
chemical structure
controlled study
diatom
three dimensional imaging
chemistry
hydrolysis
scanning electron microscopy
synthesis
X ray photoelectron spectroscopy
Bacillariophyta
Amino Acids
Biomimetic Materials
Diatoms
Hydrolysis
Ionic Liquids
Microscopy
Electron
Scanning
Photoelectron Spectroscopy
Silicon Dioxide
DOI - identifier 10.1371/journal.pone.0017707
Copyright notice © 2011 Ramanathan et al.
ISSN 1932-6203
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Citation counts: TR Web of Science Citation Count  Cited 23 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 21 times in Scopus Article | Citations
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