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Updated: Jun 10, 2026
DNA-magnetic Particle Binding Analysis by Dynamic and Electrophoretic Light Scattering
Published on: November 9, 2017
Study on the interaction between hematoporphyrin monomethyl ether and DNA and the determination of hematoporphyrin
Zhanguang Chen1, Tianhe Song, Xi Chen
1Department of Chemistry, Shantou University, Shantou, China. kqlu@stu.edu.cn
Abstract:
The interaction between photosensitizer anticancer drug hematoporphyrin monomethyl ether (HMME) and ctDNA has been studied based on the decreased resonance light scattering (RLS) phenomenon. The RLS, UV-vis and fluorescence spectra characteristics of the HMME-ctDNA system were investigated. Besides, the phosphodiesters quaternary ammonium salt (PQAS), a kind of new gemini surfactant synthesized recently, was used to determine anticancer drug HMME based on the increasing RLS intensity. Under the optimum assay conditions, the enhanced RLS intensity was proportional to the concentration of HMME. The linear range was 0.8-8.4microgmL(-1), with correlation coefficient R(2)=0.9913. The detection limit was 0.014microgmL(-1). The human serum samples and urine samples were determined satisfactorily, which proved that this method was reliable and applicable in the determination of HMME in body fluid. The presented method was simple, sensitive and straightforward and could be a significant method in clinical analysis.
