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|Table of Contents|

叶绿素的太赫兹光谱特性(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2015年06期
Page:
181-184
Column:
研究简报
publishdate:
2015-11-30

Article Info:/Info

Title:
Investigation of terahertz spectra of chlorophyll
Article ID:
1000-2006(2015)06-0181-04
Author(s):
JIANG Ling1 YU Jiangping1 XU Yutian1 LI Chun1 SUN Haijun2 XU Li2 LIU Yunfei1*
1.College of Information Science and Technology, Nanjing Forestry University, Nanjing 210037, China;
2. Advanced Analysis and Testing Center, Nanjing Forestry University, Nanjing 210037, China
Keywords:
terahertz spectra pine chlorophyll FTIR DFT
Classification number :
O433
DOI:
10.3969/j.issn.1000-2006.2015.06.032
Document Code:
A
Abstract:
This paper presents the investigation of the THz spectra of chlorophyll of masson pine leaf, chlorophyll a and b standard sample by using Fourier transform infrared spectroscopy(FTIR)and density functional theory(DFT), in order to study the vibration and rotation of chemical bonds in chlorophyll molecule at THz frequencies, which will be used to identify the components in mixing biological samples. The frequency shift characteristic of THz spectra of chlorophyll due to the change of molecular structure will efficiently detect the development of pine wilt disease. The THz spectra of the extracted chlorophyll of masson pine leaf display a strong absorption at 2.86 THz, and weak absorption at the same frequency occurs for chlorophyll a standard sample, and chlorophyll b standard sample, which originates from porphyrin ring and phytol in the chlorophyll structure. In the other frequencies, the absorptions were not distinct. Based on the absorption performance of chlorophyll, we can identify the mixing biological samples. We studied the theoretical mechanism of absorption frequencies for chlorophyll by terms of DFT. The calculated results indicate the vibration and rotation originated from intermolecular interactions have more important effect on the THz absorption spectra compared with intramolecular interactions.

References

[1] Sakai K. Terahertz optoelectronics: topics in applied physics [M]. Berlin: Springer, 2005: 97.
[2] Nagel M, Richter F, Haring-Bolivar P,et al. A functionalized THz sensor for marker-free DNA analysis [J]. Physics in Medicine and Biology, 2003, 48(22):3625-3636.
[3] Woodward R M, Wallace V P, Pye R J, et al. Terahertz pulse imaging of ex vivo basal cell carcinoma [J]. Journal of Investigative Dermatology, 2003, 120(1):72-78.
[4] Falconder R J, Markelz A G. Terahertz spectroscopic analysis of peptides and proteins [J]. Journal of Infrared, Millimeter, and Terahertz Waves, 2012, 33(10):973-988.
[5] Jiang L, Li M, Li C,et al. Terahertz spectra of L-ascorbic acid and thiamine hydrochloride studied by terahertz spectroscopy and density functional theory [J]. Journal of Infrared, Millimeter, and Terahertz Waves, 2014, 35(10):871-880.
[6] Shafri M, Zulhaidi H, Salleh M, et al. Hyperspectral remote sensing of vegetation using red edge position techniques [J]. American Journal of Applied Sciences, 2006, 3(6):1864-1871.
[7] Jago R A, Cutler M E J, Curran P J. Estimating canopy chlorophyll concentration from field and airborne spectra [J]. Remote Sensing of Environment, 1999, 68(3):217-224.
[8] Dawson T P, Curran P J. A new technique for interpolating the reflectance red edge position [J]. International Journal of Remote Sensing, 1998, 19(11):2133-2139.
[9] 杜华强,葛宏立,范文义,等. 马尾松针叶光谱特征与其叶绿素含量间关系研究[J]. 光谱学与光谱分析, 2009, 29(11):3033-3037. Du H Q, Ge H L, Fan W Y, et al. Study on relationships between total chlorophyll with hyperspectral features for leaves ofPinus massoniana forest [J]. Spectroscopy and Spectral Analysis, 2009, 29(11):3033-3037.
[10] 徐华潮,骆有庆,张廷廷,等. 松材线虫自然侵染后松树不同感病阶段针叶光谱特征变化 [J]. 光谱学与光谱分析, 2011, 31(5):1352-1356. Xu H C, Luo Y Q, Zhang T T, et al. Changes of reflectance spectra of pine needles in different stage after being infected by pine wood nematode [J]. Spectroscopy and Spectral Analysis, 2011, 31(5):1352-1356.
[11] Bruker Corporation. Bruker Vertex 80v specification.
[2005-05-10]. http://www.bruker.com/products/infrared-and-raman-spectroscopy /ft-ir-research-spectrometers/vertex-series/vertex-8080v/overview.html.
[12] Xu J, Plaxco K W, Allen S J. Absorption spectra of liquid water and aqueous buffers between 0.3 and 3.72 THz[J]. The Journal of Chemical Physics, 2006, 124(3):36101.
[13] 李春,李淼,蒋玲. 基于宽频段太赫兹光谱技术的抗坏血酸和硫胺素研究 [J] 光谱学与光谱分析,2015, 35(4):595-598. Li C, Li M, Jiang L. Research on L-ascorbid acid and thiamine based on wide-band terahertz spectroscopy technique [J]. Spectroscopy and Spectral Analysis, 2015, 35(4):595-598.
[14] Thomas K O, Rafal W, Frank R. Probing noncovalent interaction in biomolecular crystals with terahertz spectroscopy [J]. Chem Phys Chem, 2008, 9(4):544-547.
[15] Matthew D K, Timothy M K. Noncovalent interactions between modified cytosine and Guanine DNA base pair mimics investigated by terahertz spectroscopy and solid-state density functional theory [J]. Journal of Physical Chemistry: A, 2011, 115(50):14391-14396.

Last Update: 2015-11-30