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Revista mexicana de ingeniería química

versão impressa ISSN 1665-2738


MENDOZA-MADRIGAL, A.G. et al. Mechanical biosensors in biological and food area: A review. Rev. Mex. Ing. Quím [online]. 2013, vol.12, n.2, pp.205-225. ISSN 1665-2738.

A review of state the art about the structure, classification and operation of biosensors applied in food and biological areas is presented. This review is focused to mechanical biosensors that use mili, micro and nanocantilevers. Basic concepts of atomic force microscopy and optical systems, used as testing platform of biosensors are described. The most funcionalized strategies and geometrical configurations are also explained. Mathematical methods for evaluating the performance in static and dynamic mode of the mechanical biosensors are reviewed and examples of application in biological and food areas are provided. An overall description of the operational effect of operation conditions and design variables on the sensitivity devices is also proposed. A brief description of the design processes and manufacturing of cantilevers based silicon technology as well as information about BioMEMS and BioNEMS are provided. Finally, overall trends in research, development and commercialization of biosensors are described briefly as well as probable areas of development in food biosensors. Thereby, this review provides an overall view of biosensors, as an exploratory guide to identify the most important aspects of this technology.

Palavras-chave : biosensors; cantilever; atomic force microscopy; foods.

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