By Topic

Far-infrared torsional modes of DNA components studied using highly sensitive broad-band terahertz Fourier transform spectroscopy

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Tucker, C.E. ; Sch. of Phys. & Astron., Cardiff Univ., Cardiff, UK ; Weightman, P.

We demonstrate the use of broad-band low-intensity terahertz Fourier transform spectroscopy (THz-FTS) for recording the far-infrared (0.1 to 20 THz) absorption characteristics of the four nucleobases forming the building blocks of deoxyribonucleic acid (DNA) as well as presenting spectra for various DNA forms. Numerous and distinct spectral features are observed with large differences between the molecules in both frequency dependent absorption coefficient and index of refraction. These absorptions are highly conformationally dependent as a result of the differences in hydrogen bonding and their study should prove vital in the understanding of the effect of THz radiation on tissue and pave the way for quantifying biological damage thresholds resulting from THz illumination. To this end we also present initial spectroscopic results into the effects of high-intensity THz irradiation on the characteristic absorption spectra of nucleobases and DNA.

Published in:

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on

Date of Conference:

23-28 Sept. 2012