Enzymatic formation of carbohydrate rings catalyzed by single-walled carbon nanotubes

Moon Seop Hyun; Jong Pil Park; Dongkyun Seo; Sung Jin Chang; Seok Jae Lee; Sang Yup Lee; Kyungwon Kwak; Tae Jung Park

doi:10.1007/s00449-016-1553-5

Enzymatic formation of carbohydrate rings catalyzed by single-walled carbon nanotubes

Moon Seop Hyun
, Jong Pil Park
, Dongkyun Seo
, Sung Jin Chang
, Seok Jae Lee
, Sang Yup Lee
, Kyungwon Kwak
, Tae Jung Park^*

^*Corresponding author for this work

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

Abstract

Macrocyclic carbohydrate rings were formed via enzymatic reactions around single-walled carbon nanotubes (SWNTs) as a catalyst. Cyclodextrin glucanotransferase, starch substrate and SWNTs were reacted in buffer solution to yield cyclodextrin (CD) rings wrapped around individual SWNTs. Atomic force microscopy showed the resulting complexes to be rings of 12–50 nm in diameter, which were highly soluble and dispersed in aqueous solution. They were further characterized by Raman and Fourier transform infrared spectroscopy and molecular simulation using density functional theory calculation. In the absence of SWNT, hydrogen bonding between glucose units determines the structure of maltose (the precursor of CD) and produces the curvature along the glucose chain. Wrapping SWNT along the short axis was preferred with curvature in the presence of SWNTs and with the hydrophobic interactions between the SWNTs and CD molecules. This synthetic approach may be useful for the functionalization of carbon nanotubes for development of nanostructures.

Original language	English
Pages (from-to)	725-733
Number of pages	9
Journal	Bioprocess and Biosystems Engineering
Volume	39
Issue number	5
DOIs	https://doi.org/10.1007/s00449-016-1553-5
Publication status	Published - 2016 May 1

Bibliographical note

Funding Information:
This study was conducted with the support of the Korea Food Research Institute (Project No. E0152200; T. J. Park). K. Kwak thanks for the support from Basic Science Research Program through the NRF funded by the MSIP of Korea (2009-0093817). The work of S. Y. Lee was also supported by the Technology Development Program to Solve Climate Changes on Systems Metabolic Engineering for Biorefineries from the Ministry of Science, ICT and Future Planning (MSIP) through the National Research Foundation (NRF) of Korea (NRF-2012-C1AAA001-2012M1A2A2026556).

Publisher Copyright:
© 2016, Springer-Verlag Berlin Heidelberg.

Keywords

Cyclodextrin-ring
Nanocomposite
Single-walled carbon nanotubes
Surface functionalization

ASJC Scopus subject areas

Biotechnology
Bioengineering

Access to Document

10.1007/s00449-016-1553-5

Cite this

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title = "Enzymatic formation of carbohydrate rings catalyzed by single-walled carbon nanotubes",

abstract = "Macrocyclic carbohydrate rings were formed via enzymatic reactions around single-walled carbon nanotubes (SWNTs) as a catalyst. Cyclodextrin glucanotransferase, starch substrate and SWNTs were reacted in buffer solution to yield cyclodextrin (CD) rings wrapped around individual SWNTs. Atomic force microscopy showed the resulting complexes to be rings of 12–50 nm in diameter, which were highly soluble and dispersed in aqueous solution. They were further characterized by Raman and Fourier transform infrared spectroscopy and molecular simulation using density functional theory calculation. In the absence of SWNT, hydrogen bonding between glucose units determines the structure of maltose (the precursor of CD) and produces the curvature along the glucose chain. Wrapping SWNT along the short axis was preferred with curvature in the presence of SWNTs and with the hydrophobic interactions between the SWNTs and CD molecules. This synthetic approach may be useful for the functionalization of carbon nanotubes for development of nanostructures.",

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note = "Funding Information: This study was conducted with the support of the Korea Food Research Institute (Project No. E0152200; T. J. Park). K. Kwak thanks for the support from Basic Science Research Program through the NRF funded by the MSIP of Korea (2009-0093817). The work of S. Y. Lee was also supported by the Technology Development Program to Solve Climate Changes on Systems Metabolic Engineering for Biorefineries from the Ministry of Science, ICT and Future Planning (MSIP) through the National Research Foundation (NRF) of Korea (NRF-2012-C1AAA001-2012M1A2A2026556). Publisher Copyright: {\textcopyright} 2016, Springer-Verlag Berlin Heidelberg.",

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AU - Lee, Sang Yup

AU - Kwak, Kyungwon

AU - Park, Tae Jung

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N2 - Macrocyclic carbohydrate rings were formed via enzymatic reactions around single-walled carbon nanotubes (SWNTs) as a catalyst. Cyclodextrin glucanotransferase, starch substrate and SWNTs were reacted in buffer solution to yield cyclodextrin (CD) rings wrapped around individual SWNTs. Atomic force microscopy showed the resulting complexes to be rings of 12–50 nm in diameter, which were highly soluble and dispersed in aqueous solution. They were further characterized by Raman and Fourier transform infrared spectroscopy and molecular simulation using density functional theory calculation. In the absence of SWNT, hydrogen bonding between glucose units determines the structure of maltose (the precursor of CD) and produces the curvature along the glucose chain. Wrapping SWNT along the short axis was preferred with curvature in the presence of SWNTs and with the hydrophobic interactions between the SWNTs and CD molecules. This synthetic approach may be useful for the functionalization of carbon nanotubes for development of nanostructures.

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Enzymatic formation of carbohydrate rings catalyzed by single-walled carbon nanotubes

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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