Disciplines
Medical-Theoretical Sciences, Pharmacy (100%)
Keywords
Sepsis,
Diagnostic,
Blood,
Bacterial Culture,
Rapid Test
Abstract
Sepsis is a life-threatening condition that causes 11 million deaths worldwide annually. In
sepsis, an infectious pathogen most commonly bacteria - triggers the immune system to
react inappropriately. A rapid diagnosis of the presence of a pathogen(s) and identification of
its specific type(s) facilitates an early initiation of antibiotic treatment and allows an
administration of the most appropriate ones. The current diagnostic standard is a low-efficacy
and slow bacteriological culture, which typically requires a 24-72h to receive results, of which
approximately 80% are negative.
In this cooperative project, the research team of Marcin Osuchowski, from the Ludwig
Boltzmann Institute for Traumatology together with Klemens Wassermann and Terje
Wimberger from the CellEctric Company, Vienna, investigate a faster and more efficient
method for bacteria detection in the whole blood of septic patients using novel bio-
electrodynamic filters. Lysis of the full blood samples will be performed via an exposure to
electric fields, producing a mixture of destroyed non-bacterial cells and non-damaged and
viable bacteria. Through a special filtration, a purified sample containing concentrated
pathogenic bacteria will be further used for their more specific identification and
characterization. This will be performed via the so-called on-filter cultivation and exposing the
bacteria to different kinds of enzymes, with which the pathogens will react in very characteristic
ways depending on their type. If successful, this approach will minimize the pathogen detection
time to approximately 6 hours. At the end of this project, there will be a ready-to-use and simple
diagnostic workflow waiting to be verified in a prospective clinical study.