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- W4220674985 abstract "Biosensor-based detection of pathogenic bacteria has gained attention since it could be fast, portable, cost effective and potentially easy to use. In this study, we investigated the detection of L. pneumophila using an antimicrobial peptide (AMP) and antibody (Ab) functionalized GaAs/AlGaAs biochips. The AMP attachment on GaAs surface was evaluated using Fourier-transform infrared spectroscopy (FTIR) and atomic force microscopy (AFM). The peptide-related absorbance bands in IR (1588 cm<sup>-1</sup>, 1653 cm<sup>-1</sup>, and 1734 cm<sup>-1</sup>) suggest the successful immobilization of AMP on GaAs. The bacterial capture efficiency/affinity on GaAs surface was evaluated for several peptides such as warnericin RK, clavanin, parasin, magainin, melittin and it was observed that the warnericin RK obtained ~4 times higher capture efficiency compared to the other peptides. We successfully detected L. pneumophila using AMP, as well as Ab conjugated GaAs/AlGaAs biosensors. The AMP functionalized biosensors, however, allowed higher sensitivity compared to Ab based bioarchitecture. The proposed AMP functionalized GaAs/AlGaAs biosensor is attractive for rapid and sensitive detection of <i>L. pneumophila</i> in water samples." @default.
- W4220674985 created "2022-04-03" @default.
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- W4220674985 date "2022-03-27" @default.
- W4220674985 modified "2023-09-27" @default.
- W4220674985 title "Detection of Legionella pneumophila with antimicrobial peptide-based GaAs/AlGaAs biosensor" @default.
- W4220674985 doi "https://doi.org/10.1117/12.2626470" @default.
- W4220674985 hasPublicationYear "2022" @default.
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