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Immunosensors-The Future of Pathogen Real-Time Detection

Journal

SENSORS
Volume 22, Issue 24, Pages -

Publisher

MDPI
DOI: 10.3390/s22249757

Keywords

immunosensors; biosensors; detection; pathogens; biological agents

Funding

  1. European Union [101018596]

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Pathogens and their toxins can cause various diseases, and early diagnosis and suitable treatment are crucial. Conventional laboratory-based techniques have advantages of high sensitivity and selectivity, but also have limitations such as long experiment-time and the need for well-qualified personnel. Immunosenors offer a promising alternative with their quick, highly selective and sensitive capabilities, and have the potential to greatly improve the diagnostic processes for pathogens and toxins.
Pathogens and their toxins can cause various diseases of different severity. Some of them may be fatal, and therefore early diagnosis and suitable treatment is essential. There are numerous available methods used for their rapid screening. Conventional laboratory-based techniques such as culturing, enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR) are dominant. However, culturing still remains the gold standard for their identification. These methods have many advantages, including high sensitivity and selectivity, but also numerous limitations, such as long experiment-time, costly instrumentation, and the need for well-qualified personnel to operate the equipment. All these existing limitations are the reasons for the continuous search for a new solutions in the field of bacteria identification. For years, research has been focusing on the use of immunosensors in various types of toxin- and pathogen-detection. Compared to the conventional methods, immunosensors do not require well-trained personnel. What is more, immunosensors are quick, highly selective and sensitive, and possess the potential to significantly improve the pathogen and toxin diagnostic-processes. There is a very important potential use for them in various transport systems, where the risk of contamination by bioagents is very high. In this paper, the advances in the field of immunosensor usage in pathogenic microorganism- and toxin-detection, are described.

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