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This article reports the theory and analytical applications of thin lipid films. Recent advances of electrochemical devices based on lipid membranes have lead to reports of construction of biosensors for environmental and food applications, and may provide opportunities for commercial fabrication. The methods of formation of lipid membranes on various supports including metals (silver, gold, stainless steel), agar, conducting polymers and ultrafiltration membranes have provided stabilization of lipid films with a diversity of analytical applications in real samples. Methods of immobilization and incorporation of various functional macromolecules are summarized. Several examples of the application of various methods for study of physical properties of supported bilayer lipid membranes are described. Applications of lipid-based biosensors in analytical chemistry for determination of compounds are demonstrated, including a diversity of chemical compounds such as environmental pollutants (ammonia and carbon dioxide, cyanide ions, etc.) and food toxins (aflatoxin M1and direct detection of toxin in real samples such as milk and milk preparations). Methods for application of liposomes as a sensing system are also summarized.
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Nikolelis et al. (1999) studied this question.
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