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@article{ART002278251},
author={Jin Hee Kim and Inkyu Rhee and Yong Chae Jung and 하수민 and Kim Yoong Ahm},
title={Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load},
journal={Carbon Letters},
issn={1976-4251},
year={2017},
volume={24},
number={1},
pages={90-96}

TY - JOUR
AU - Jin Hee Kim
AU - Inkyu Rhee
AU - Yong Chae Jung
AU - 하수민
AU - Kim Yoong Ahm
TI - Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load
JO - Carbon Letters
PY - 2017
VL - 24
IS - 1
PB - Korean Carbon Society
SP - 90
EP - 96
SN - 1976-4251
AB - We demonstrated the sensitivity of optically active single-walled carbon nanotubes (SWCNTs) with a diameter below 1 nm that were homogeneously dispersed in cement composites under a mechanical load. Deoxyribonucleic acid (DNA) was selected as the dispersing agent to achieve a homogeneous dispersion of SWCNTs in an aqueous solution, and the dispersion state of the SWCNTs were characterized using various optical tools. It was found that the addition of alarge amount of DNA prohibited the structural evolution of calcium hydroxide and calcium silicate hydrate. Based on the in-situ Raman and X-ray diffraction studies, it was evident that hydrophilic functional groups within the DNA strongly retarded the hydration reaction. The optimum amount of DNA with respect to the cement was found to be 0.05 wt%. The strong Raman signals coming from the SWCNTs entrapped in the cement composites enabled us tounderstand their dispersion state within the cement as well as their interfacial interaction. The G and G’ bands of the SWCNTs sensitively varied under mechanical compression. Our results indicate that an extremely small amount of SWCNTs can be used as an optical strain sensor if they are homogeneously dispersed within cement composites.
KW - cement composite;single walled carbon nanotube;DNA;compressive strength;Raman
DO -
UR -
ER -

Jin Hee Kim, Inkyu Rhee, Yong Chae Jung, 하수민 and Kim Yoong Ahm. (2017). Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load. Carbon Letters, 24(1), 90-96.

Jin Hee Kim, Inkyu Rhee, Yong Chae Jung, 하수민 and Kim Yoong Ahm. 2017, "Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load", Carbon Letters, vol.24, no.1 pp.90-96.

Jin Hee Kim, Inkyu Rhee, Yong Chae Jung, 하수민, Kim Yoong Ahm "Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load" Carbon Letters 24.1 pp.90-96 (2017) : 90.

Jin Hee Kim, Inkyu Rhee, Yong Chae Jung, 하수민, Kim Yoong Ahm. Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load. 2017; 24(1), 90-96.

Jin Hee Kim, Inkyu Rhee, Yong Chae Jung, 하수민 and Kim Yoong Ahm. "Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load" Carbon Letters 24, no.1 (2017) : 90-96.

Jin Hee Kim; Inkyu Rhee; Yong Chae Jung; 하수민; Kim Yoong Ahm. Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load. Carbon Letters, 24(1), 90-96.

Jin Hee Kim; Inkyu Rhee; Yong Chae Jung; 하수민; Kim Yoong Ahm. Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load. Carbon Letters. 2017; 24(1) 90-96.

Jin Hee Kim, Inkyu Rhee, Yong Chae Jung, 하수민, Kim Yoong Ahm. Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load. 2017; 24(1), 90-96.

Jin Hee Kim, Inkyu Rhee, Yong Chae Jung, 하수민 and Kim Yoong Ahm. "Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load" Carbon Letters 24, no.1 (2017) : 90-96.