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ISSN: 2327-5073
Clinical Microbiology: Open Access
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Laser Interferometric Method in the Measurement of Lipopolisaccharides Interactions with Antibacterial Compounds

Michal Arabski*

Department of Microbiology, Jan Kochanowski University, Poland

*Corresponding Author:
Michal Arabski
Department of Microbiology
Jan Kochanowski University
Swietokrzyska, Poland
E-mail: [email protected]

Received date: January 24, 2013; Accepted date: January 25, 2013; Published date: January 28, 2013

Citation: Arabski M (2013) Laser Interferometric Method in the Measurement of Lipopolisaccharides Interactions with Antibacterial Compounds. Clin Microbial 2:e108. doi: 10.4172/2327-5073.1000e108

Copyright: © 2013 Arabski M. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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The aim of my investigations is novel applications of modified laser interferometry method in microbiological, biophysical and biochemical analysis. The measurement system consists of Mach-Zehnder interferometer with a He-Ne laser, a TV-CCD camera and a computer with a system for the acquisition and processing of interference images. The method is based on the phenomenon of diffusion process and linear dependence of the refractive index of the solution concentration. The interference images depend on the refraction coefficient of the solute, which in turn depends on the substance concentration. Laser interferometry might be useful technique in quantitative analysis of antibiotics diffusion (in real time), like ampicilin, ciprofloxacin, streptomycin or colistin, through cellulose and nucleopore membranes (using in clinical practice) as well as in determination of drugs releasing from polymers using as drugs careers [1]. This method was using in the investigation, important from clinical point of view, like the measurement of liposomes diffusion through artificial skin material and cellulose-based wound dressing to optimalization of therapy using liposome encapsulated drugs [2]. Laser interferometry system might be use in analysis of biologically active heteropolymers interactions with biomolecules, like lipopolysaccharides (endotoxin, LPS) with colistin, chitosans or saponins [3-5]. Moreover, I used this technique in verification of ELISA test for the determination of anti-LPS P. mirabilis antibody levels in human sera [6]. The results of investigations obtained by the laser interferometry were verified by cultivation methods using in microbiology, immunoserological assays (dot blot techniques, LAL assay, ELISA), bioinformatics tools, electron microscopy, sucrose gradient centrifugation or in vivo toxicity tests. I concluded that interdisciplinary investigations based on stand art techniques using in microbiology or biochemistry as well as laser interferometry method might give a broad insight to clinical applications of tested drugs.

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