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Proceedings Paper

Study of R-group positively charged amino acids' UV
Author(s): Teng fei Tian; Gui zhong Liu; Xian hui Meng; Xiao qian Tan; Yong liang Liu
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Paper Abstract

In this paper, we study the change mechanism of UV of three amino acids with positively charged R-group, which are processed under alternating electric field. We prepared 0.01mol/L aqueous solution of lysine(K), arginine(R), histidine(H) respectively, then disposed them at different frequency electric field for 5 minutes, scanning UV spectrum finally. As a result, red/blue shift and hyperchromic/hypochromic effect arise in spectrums of these three amino acids. Compared with control group, ΔλKmax is between -0.4nm and 0.8nm, ΔλRmax between -0.4nm and 0.8nm, ΔλHmax between -2.2nm and -0.6nm; ΔεKmax is between -2.657% and 2.143%, ΔεRmax between -4.997% and -1.581%, ΔεHmax between -2.098% and 0.314%. The levels of the amino acid molecules and the energy levels difference are affected by the excitation of alternating electric field. The changes of energy level difference result in the occurrence of UV spectrum red/blue shift. There is reduced trend of Δλmax along with increasing frequency. The number of molecules, which meet the energy levels in the conditions of transition, is changed by the changes of molecular levels, so comes changes of hyperchromic/hypochromic effect and the changes decrease with increasing frequency.

Paper Details

Date Published: 10 July 2009
PDF: 7 pages
Proc. SPIE 7490, PIAGENG 2009: Intelligent Information, Control, and Communication Technology for Agricultural Engineering, 74900V (10 July 2009); doi: 10.1117/12.836869
Show Author Affiliations
Teng fei Tian, Dezhou Univ. (China)
Gui zhong Liu, Dezhou Univ. (China)
Shandong Univ. (China)
Xian hui Meng, Dezhou Univ. (China)
Xiao qian Tan, Dezhou Univ. (China)
Yong liang Liu, Dezhou Univ. (China)
Shandong Univ. (China)

Published in SPIE Proceedings Vol. 7490:
PIAGENG 2009: Intelligent Information, Control, and Communication Technology for Agricultural Engineering
Honghua Tan; Qi Luo, Editor(s)

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