Broadband Spectroscopic Thermoacoustic Characterization of Single-Walled Carbon Nanotubes
Joint Authors
Bauer, Daniel R.
Wang, Xiong
Vollin, Jeff
Xin, Hao
Witte, Russell S.
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-06-15
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Carbon nanotubes have attracted interest as contrast agents for biomedical imaging because they strongly absorb electromagnetic radiation in the optical and microwave regions.
This study applies thermoacoustic (TA) imaging and spectroscopy to measure the frequency-dependent absorption profile of single-walled carbon nanotubes (SWNT) in the ranges of 2.7–3.1 GHz and 7–9 GHz using two tunable microwave sources.
Between 7 and 9 GHz, the peak TA signal for solutions containing semiconducting and metallic SWNTs increased monotonically with a slope of 1.75 AU/GHz ( R 2 = 0.95 ) and 2.8 AU/GHz ( R 2 = 0.93 ), respectively, relative to a water baseline.
However, after compensating for the background signal from water, it was revealed that the TA signal from metallic SWNTs increased exponentially within this frequency band.
Results suggest that TA imaging and spectroscopy could be a powerful tool for quantifying the absorption properties of SWNTs and optimizing their performance as contrast agents for imaging or heat sources for thermal therapy.
American Psychological Association (APA)
Bauer, Daniel R.& Wang, Xiong& Vollin, Jeff& Xin, Hao& Witte, Russell S.. 2015. Broadband Spectroscopic Thermoacoustic Characterization of Single-Walled Carbon Nanotubes. Journal of Spectroscopy،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1070340
Modern Language Association (MLA)
Bauer, Daniel R.…[et al.]. Broadband Spectroscopic Thermoacoustic Characterization of Single-Walled Carbon Nanotubes. Journal of Spectroscopy No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1070340
American Medical Association (AMA)
Bauer, Daniel R.& Wang, Xiong& Vollin, Jeff& Xin, Hao& Witte, Russell S.. Broadband Spectroscopic Thermoacoustic Characterization of Single-Walled Carbon Nanotubes. Journal of Spectroscopy. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1070340
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1070340