![]() ![]() 10 published a side-gated FET to detect hybridized desoxyribonucleic acid (DNA). In the last years, the amount of published extended-gate or floating-gate field-effect transistors (FET) as biosensors has seen an increase 6, 9, 10, 11, 12, 13. ![]() Fatal infections as tuberculosis or HIV can be drastically reduced in developing countries 8. Biosensors can be used at doctor’s practice and enable a fast diagnostic with a subsequent therapy. In contrast, biosensors based on bioelectronics have a fast response, improve the sensitivity, and even reduce the sample volume drastically compared to traditional sensing technologies 6, 7. PCR has a high sensitivity and accuracy but requires a large quantity of materials, educated personnel, and time 5. ELISA profits from a fast response but errors in the detection process are possible 4. Common detection methods can be enzyme-linked immunosorbent assay (ELISA) or polymerase chain reaction (PCR). Therefore, it is essential to detect pathogenic organisms at an early stage. But, as a consequence, an increase of resistant germs is observed 3. Many infections can be treated with suitable antibiotics. Escherichia coli (E. coli) or Staphylococcus aureus are causing, inter alia, diarrhea, anemia, or kidney failure. Nevertheless, the few pathogenic microorganisms can threaten human’s health dramatically 2. Bacteria are often seen as pathogenic organisms but essential functions, for instance in healthcare and food safety, cannot be solved without microorganisms 1, 2. ![]()
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