ArticleScientific reports2026
Rapid detection of airborne fungal contamination using a molecularly imprinted polymer approach for ergosterol.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Fungi are major biological contaminants in indoor air, and their concentration is typically assessed using the culture-based CFU method, which is labor-intensive and time-consuming. Ergosterol, a major fungal cell membrane component, has emerged as a preferred target for alternative analytical approaches. However, ergosterol is highly hydrophobic, and specific affinity probes such as antibodies or aptamers have not yet been successfully developed. In this study, we fabricated ergosterol-specific probes using molecularly imprinted polymers (MIPs) immobilized on carbon nanotubes (CNTs) and integrated them into a screen-printed electrode (SPE) platform. Surface polymerization was initiated through a thiol-ene click reaction using pentaerythritol tetrakis(3-mercaptopropionate) (PETMP) and glyoxal bis(diallyl acetal) (GO), which were selected based on predicted stable conformations for MIP synthesis. The resulting MIP@CNT sensor achieved an imprinting factor (IF) of 19.26 and a limit of detection (LOD) of 0.22 pM for ergosterol. Ergosterol levels in indoor air samples collected on PVC filters were quantified using the MIP@CNT sensor and showed significant correlation with GC/MS measurement (R
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