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Detection of dangerous pathogens (CAT#: STEM-ST-0360-WXH)
Introduction
Pathogens are defined as organisms that can cause diseases in their hosts. They are taxonomically widely diverse, and include bacteria, viruses, unicellular and multicellular eukaryotes, and are prevalent in the environment. Many pathogens can be transmitted from the environment to the human population, cause outbreaks, and become a threat to public health. One example is Vibrio cholerae, a natural inhabitant of aquatic ecosystems transmitted by contaminated water or food, causing cholera.
Principle
The principle of this technique is to apply an AC signal of small amplitude to an electrode immersed into an electrolyte. The initial disturbance (applied) and the response of the electrode is compared by measuring the phase shift of the current and voltage components and by the measurements of their amplitudes.
Applications
Used to study the response of a sample subjected to an applied electric field of fixed or changing frequency. DS describes the dielectric properties of a material as a function of frequency.
Materials
Dielectric spectrometer
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Wide range of applications
For various laboratory needs
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