Preparation of a carbon doped tissue-mimicking material with high dielectric properties for microwave imaging application

Siang Wen Lan, Min Hang Weng, Ru Yuan Yang, Shoou-Jinn Chang, Yaoh Sien Chung, Tsung Chih Yu, Chun Sen Wu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this paper, the oil-in-gelatin based tissue-mimicking materials (TMMs) doped with carbon based materials including carbon nanotube, graphene ink or lignin were prepared. The volume percent for gelatin based mixtures and oil based mixtures were both around 50%, and the doping amounts were 2 wt %, 4 wt %, and 6 wt %. The effect of doping material and amount on the microwave dielectric properties including dielectric constant and conductivity were investigated over an ultra-wide frequency range from 2 GHz to 20 GHz. The coaxial open-ended reflection technology was used to evaluate the microwave dielectric properties. Six measured values in different locations of each sample were averaged and the standard deviations of all the measured dielectric properties, including dielectric constant and conductivity, were less than one, indicating a good uniformity of the prepared samples. Without doping, the dielectric constant was equal to 23 ± 2 approximately. Results showed with doping of carbon based materials that the dielectric constant and conductivity both increased about 5% to 20%, and the increment was dependent on the doping amount. By proper selection of doping amount of the carbon based materials, the prepared material could map the required dielectric properties of special tissues. The proposed materials were suitable for the phantom used in the microwave medical imaging system.

Original languageEnglish
Article number559
JournalMaterials
Volume9
Issue number7
DOIs
Publication statusPublished - 2016 Jan 1

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Dielectric properties
Carbon
Microwaves
Tissue
Imaging techniques
Doping (additives)
Permittivity
Gelatin
Oils
Carbon Nanotubes
Graphite
Lignin
Medical imaging
Ink
Imaging systems
Graphene
Carbon nanotubes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Lan, Siang Wen ; Weng, Min Hang ; Yang, Ru Yuan ; Chang, Shoou-Jinn ; Chung, Yaoh Sien ; Yu, Tsung Chih ; Wu, Chun Sen. / Preparation of a carbon doped tissue-mimicking material with high dielectric properties for microwave imaging application. In: Materials. 2016 ; Vol. 9, No. 7.
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abstract = "In this paper, the oil-in-gelatin based tissue-mimicking materials (TMMs) doped with carbon based materials including carbon nanotube, graphene ink or lignin were prepared. The volume percent for gelatin based mixtures and oil based mixtures were both around 50{\%}, and the doping amounts were 2 wt {\%}, 4 wt {\%}, and 6 wt {\%}. The effect of doping material and amount on the microwave dielectric properties including dielectric constant and conductivity were investigated over an ultra-wide frequency range from 2 GHz to 20 GHz. The coaxial open-ended reflection technology was used to evaluate the microwave dielectric properties. Six measured values in different locations of each sample were averaged and the standard deviations of all the measured dielectric properties, including dielectric constant and conductivity, were less than one, indicating a good uniformity of the prepared samples. Without doping, the dielectric constant was equal to 23 ± 2 approximately. Results showed with doping of carbon based materials that the dielectric constant and conductivity both increased about 5{\%} to 20{\%}, and the increment was dependent on the doping amount. By proper selection of doping amount of the carbon based materials, the prepared material could map the required dielectric properties of special tissues. The proposed materials were suitable for the phantom used in the microwave medical imaging system.",
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Preparation of a carbon doped tissue-mimicking material with high dielectric properties for microwave imaging application. / Lan, Siang Wen; Weng, Min Hang; Yang, Ru Yuan; Chang, Shoou-Jinn; Chung, Yaoh Sien; Yu, Tsung Chih; Wu, Chun Sen.

In: Materials, Vol. 9, No. 7, 559, 01.01.2016.

Research output: Contribution to journalArticle

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