CO2 bioconversion using carbonic anhydrase (CA): Effects of PEG rigidity on the structure of bio-mineralized crystal composites

Ee Taek Hwang; Haemin Gang; Man Bock Gu

doi:10.1016/j.jbiotec.2013.06.024

CO₂ bioconversion using carbonic anhydrase (CA): Effects of PEG rigidity on the structure of bio-mineralized crystal composites

Ee Taek Hwang, Haemin Gang, Man Bock Gu

Department of Biotechnology

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The combined effect of both carbonic anhydrase (CA) and the rigidity of polyethylene glycol (PEG) were found to assist the bio-mineralized crystallization behavior of CO₂ differentially. In this study, different forms of magnetically responsive calcium carbonate (CaCO₃) crystal composites were successfully formed from gaseous CO₂ by using the different forms of polyethylene glycols (PEGs) in a constant CO₂ pressure controlled chamber. Polygonal particles were produced with more rigid polymer chains (branched PEG), whereas less rigid polymer chains (PEG) induced the formation of ellipsoidal particles. However, no morphological changes occurred without the presence of CA.

Original language	English
Pages (from-to)	208-211
Number of pages	4
Journal	Journal of Biotechnology
Volume	168
Issue number	2
DOIs	https://doi.org/10.1016/j.jbiotec.2013.06.024
Publication status	Published - 2013 Oct

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (MEST) ” ( NRF-C1ABA001-2010-0020501 ). We appreciate Mr. Jinyang Chung in Korea University for his help in this work.

Keywords

Biomineralization
Calcium carbonate
Carbon dioxide
Carbonic anhydrase
Polymer

ASJC Scopus subject areas

Biotechnology
Bioengineering
Applied Microbiology and Biotechnology

Access to Document

10.1016/j.jbiotec.2013.06.024

Cite this

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title = "CO2 bioconversion using carbonic anhydrase (CA): Effects of PEG rigidity on the structure of bio-mineralized crystal composites",

abstract = "The combined effect of both carbonic anhydrase (CA) and the rigidity of polyethylene glycol (PEG) were found to assist the bio-mineralized crystallization behavior of CO2 differentially. In this study, different forms of magnetically responsive calcium carbonate (CaCO3) crystal composites were successfully formed from gaseous CO2 by using the different forms of polyethylene glycols (PEGs) in a constant CO2 pressure controlled chamber. Polygonal particles were produced with more rigid polymer chains (branched PEG), whereas less rigid polymer chains (PEG) induced the formation of ellipsoidal particles. However, no morphological changes occurred without the presence of CA.",

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note = "Funding Information: This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (MEST) ” ( NRF-C1ABA001-2010-0020501 ). We appreciate Mr. Jinyang Chung in Korea University for his help in this work. ",

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