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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Synthesis of NIR Reductive Probes to Monitor Hypoxia During Fungal Infection
 Kárníková, Tereza ; Baszczyňski, Ondřej (advisor) ; Míšek, Jiří (referee)
Invasive fungal infections represent a significant problem, resulting in approximately 1.5 million deaths worldwide annually. Among the most common invasive fungal infections are aspergillosis and candidiasis. Both opportunistic infections have a high mortality rate (50% and 27%, respectively). The diagnosis of these infections is often complex, leading to delayed detection and an increased risk of complications. Recently, near-infrared (NIR) hypoxia probes have been investigated for the diagnosis and monitoring of fungal infections. These probes enable non-invasive measurement of tissue oxygen concentration and can contribute to early diagnosis of fungal infections. Hypoxia can also be a relevant target for the delivery of antifungal agents. For this reason, a series of hypoxia-selective probes has been developed. These probes contain N-methyl-2-nitroimidazole and a fluorophore that absorbs in the near-infrared spectrum. We anticipate that probes will function as follows: the reducible breakdown of N- methyl-2-nitroimidazole in a hypoxic environment will activate the probe, leading to the release of the fluorophore, which absorbs in the near-infrared spectrum. Confocal microscopy will be used to observe whether the fluorophore is selectively released in the hypoxic environment or at the site of...
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