Finely dispersed single-walled carbon nanotubes for polysaccharide hydrogels
Here we demonstrate a polysaccharide hydrogel reinforced with finely dispersed single-walled carbon nanotubes (SWNTs) using biocompatible dispersants O-carboxymethylchitosan (OC) and chondroitin sulfate A (CS-A) as a structural support. Both of the dispersants can disperse SWNTs in aqueous solutions...
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sg-ntu-dr.10356-962452020-03-07T11:35:33Z Finely dispersed single-walled carbon nanotubes for polysaccharide hydrogels Yan, Liang Yu Chen, Hailan Li, Peng Kim, Dong-Hwan Chan, Mary Bee Eng School of Chemical and Biomedical Engineering Here we demonstrate a polysaccharide hydrogel reinforced with finely dispersed single-walled carbon nanotubes (SWNTs) using biocompatible dispersants O-carboxymethylchitosan (OC) and chondroitin sulfate A (CS-A) as a structural support. Both of the dispersants can disperse SWNTs in aqueous solutions and hydrogel matrix as individual tubes or small bundles. Additionally, we have found that compressive modulus and strain of the hydrogels reinforced with SWNTs were enhanced as much as two times by the addition of a few weight percent of SWNTs. Moreover, the SWNT-incorporated hydrogels exhibited lower impedance and higher charge capacity than the alginate/dispersant hydrogel without SWNTs. The OC and the CS-A demonstrated much higher reinforcing enhancement than a commercially available dispersant, sodium dodecyl sulfate. Combined with the experimental data on the mechanical and electrical properties, the biocompatibility of OC and CS-A can provide the possibility of biomedical application of the SWNT-reinforced hydrogels. 2013-06-12T04:00:16Z 2019-12-06T19:27:48Z 2013-06-12T04:00:16Z 2019-12-06T19:27:48Z 2012 2012 Journal Article Yan, L. Y., Chen, H., Li, P., Kim, D.-H., & Chan-Park, M. B. (2012). Finely Dispersed Single-Walled Carbon Nanotubes for Polysaccharide Hydrogels. ACS Applied Materials & Interfaces, 4(9), 4610-4615. 1944-8244 https://hdl.handle.net/10356/96245 http://hdl.handle.net/10220/10238 10.1021/am300985p en ACS applied materials & interfaces © 2012 American Chemical Society. |
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Here we demonstrate a polysaccharide hydrogel reinforced with finely dispersed single-walled carbon nanotubes (SWNTs) using biocompatible dispersants O-carboxymethylchitosan (OC) and chondroitin sulfate A (CS-A) as a structural support. Both of the dispersants can disperse SWNTs in aqueous solutions and hydrogel matrix as individual tubes or small bundles. Additionally, we have found that compressive modulus and strain of the hydrogels reinforced with SWNTs were enhanced as much as two times by the addition of a few weight percent of SWNTs. Moreover, the SWNT-incorporated hydrogels exhibited lower impedance and higher charge capacity than the alginate/dispersant hydrogel without SWNTs. The OC and the CS-A demonstrated much higher reinforcing enhancement than a commercially available dispersant, sodium dodecyl sulfate. Combined with the experimental data on the mechanical and electrical properties, the biocompatibility of OC and CS-A can provide the possibility of biomedical application of the SWNT-reinforced hydrogels. |
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School of Chemical and Biomedical Engineering |
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School of Chemical and Biomedical Engineering Yan, Liang Yu Chen, Hailan Li, Peng Kim, Dong-Hwan Chan, Mary Bee Eng |
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Article |
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Yan, Liang Yu Chen, Hailan Li, Peng Kim, Dong-Hwan Chan, Mary Bee Eng |
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Yan, Liang Yu Chen, Hailan Li, Peng Kim, Dong-Hwan Chan, Mary Bee Eng Finely dispersed single-walled carbon nanotubes for polysaccharide hydrogels |
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Yan, Liang Yu |
title |
Finely dispersed single-walled carbon nanotubes for polysaccharide hydrogels |
title_short |
Finely dispersed single-walled carbon nanotubes for polysaccharide hydrogels |
title_full |
Finely dispersed single-walled carbon nanotubes for polysaccharide hydrogels |
title_fullStr |
Finely dispersed single-walled carbon nanotubes for polysaccharide hydrogels |
title_full_unstemmed |
Finely dispersed single-walled carbon nanotubes for polysaccharide hydrogels |
title_sort |
finely dispersed single-walled carbon nanotubes for polysaccharide hydrogels |
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2013 |
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https://hdl.handle.net/10356/96245 http://hdl.handle.net/10220/10238 |
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