Ultra-Fast low concentration detection of Candida pathogens utilizing high resolution micropore chips

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Abstract

Although Candida species are the fourth most common cause of nosocomial blood stream infections in the United States, early diagnostic tools for invasive candidemia are lacking. Due to an increasing rate of candidemia, a new screening system is needed to detect the Candida species in a timely manner. Here we describe a novel method of detection using a solid-state micro-scale pore similar to the operational principles of a Coulter counter. With a steady electrolyte current flowing through the pore, measurements are taken of changes in the current corresponding to the shape of individual yeasts as they translocate or travel through the pore. The direct ultra-fast low concentration electrical addressing of C. albicans has established criteria for distinguishing individual yeast based on their structural properties, which may reduce the currently used methods’ complexity for both identification and quantification capabilities in mixed blood samples

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Mulero, R., Lee, D. H., Kutzler, M. A., Jacobson, J. M., & Kim, M. J. (2009). Ultra-Fast low concentration detection of Candida pathogens utilizing high resolution micropore chips. Sensors, 9(3), 1590–1598. https://doi.org/10.3390/s90301590

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