Tag Archives: definitions+principles

Direct optical sensors: principles and selected applications

Abstract In the field of bio and chemosensors a large number of detection principles has been published within the last decade. These detection principles are based either on the observation of fluorescence-labelled systems or on direct optical detection in the heterogeneous phase…Here, an overview of methods of microrefractometric and microreflectometric principles is given and benefits [...]

Microbial biosensors: A review

Abstract A microbial biosensor is an analytical device which integrates microorganism(s) with a physical transducer to generate a measurable signal proportional to the concentration of analytes. In recent years, a large number of microbial biosensors have been developed for environmental, food, and biomedical applications. Starting with the discussion of various sensing techniques commonly used in [...]

Review of analytical figures of merit of sensors and biosensors in clinical applications

Abstract …Health care appears to provide the best opportunity for sensor development. Among the wide range of different sensors and biosensors, electrochemical biosensors are the most common in the clinical field, due to their high sensitivity and selectivity, portability, rapid response time and low cost. This article provides an up-to-date overview of the analytical performance [...]

Immobilization of biomolecules on nanostructured films for biosensing

Abstract This paper brings an overview of the use of nanostructured films in several types of biosensors, with emphasis on the advantageous control of molecular architecture…Important contributions in the literature in biosensors based on electrochemical and optical measurements are highlighted. Furthermore, a discussion is presented on how the concept of electronic tongues has been extended [...]

Electrochemical biosensors: recommended definitions and classification

Abstract …An electrochemical biosensor is a self-contained integrated device, which is capable of providing specific quantitative or semi-quantitative analytical information using a biological recognition element (biochemical receptor) which is retained in direct spatial contact with an electrochemical transduction element. Because of their ability to be repeatedly calibrated, we recommend that a biosensor should be clearly [...]