Novel Hyphenated Techniques of Atomic Spectrometry for Metal Species Interaction with Biomolecules
LI Yan1, YAN Xiu-ping2
1. Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecule, College of Chemistry, Tianjin Normal University, Tianjin 300387, China 2. State Key Laboratory of Medicinal Chemical Biology (Nankai University), Research Center for Analytical Science, College of Chemistry, Nankai University, Tianjin 300071, China
Abstract：Trace metals may be adopted by biological systems to assist in the syntheses and metabolic functions of genes (DNA and RNA) and proteins in the environment. These metals may be beneficial or may pose a risk to humans and other life forms. Novel hybrid techniques are required for studies on the interaction between different metal species and biomolecules, which is significant for biology, biochemistry, nutrition, agriculture, medicine, pharmacy, and environmental science. In recent years, our group dwells on new hyphenated techniques based on capillary electrophoresis (CE), electrothermal atomic absorption spectrometry (ETAAS), and inductively coupled plasma mass spectroscopy (ICP-MS), and their application for different metal species interaction with biomolecules such as DNA, HSA, and GSH. The CE-ETAAS assay and CE-ICP-MS assay allow sensitively probing the level of biomolecules such as DNA damage by different metal species and extracting the kinetic and thermodynamic information on the interactions of different metal species with biomolecules, provides direct evidences for the formation of differentmetal species - biomolecule adducts. In addition, the consequent structural information were extracted from circular dichroism (CD) and X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and Fourier transform infrared (FTIR) spectroscopy. The present works represent the most complete and extensive study to date on the interactions between different metal species with biomolecules, and also provide new evidences for and insights into the interactions of different metal species with biomolecules for further understanding of the toxicological effects of metal species.
李 妍1，严秀平2 . 毛细管电泳-原子光(质)谱联用技术在金属形态与生物分子相互作用研究中的应用 [J]. 光谱学与光谱分析, 2015, 35(09): 2397-2400.
LI Yan1, YAN Xiu-ping2 . Novel Hyphenated Techniques of Atomic Spectrometry for Metal Species Interaction with Biomolecules . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(09): 2397-2400.
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