Publications by authors named "The Huy Bui"

Dipicolinic acid (DPA) is a key biomarker of bacterial spores. In this study, we present a novel distance-based paper analytical device (d-PAD) for the fluorescence sensing of DPA. The detection mechanism relies on the complexation of ofloxacin (OFL) with Cu ions, where Cu quenches the fluorescence of OFL static quenching.

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Article Synopsis
  • Microfluidic paper-based analytical devices (μPADs) are praised for being affordable and portable tools for point-of-care testing, but traditional fabrication methods can be complex and costly, particularly in low-resource environments.
  • This research presents a new fabrication method for μPADs using 3D-printed chambers and super glue vapor, allowing for quick and easy production, effective in just 5 minutes without specialized training.
  • The study's significance lies in its introduction of a simplified way to create μPADs for detecting various analytes, including glucose and heavy metals, potentially broadening their use in diagnostics.
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We developed a facile detection method of spermine based on the fluorescence (FL) quenching of the ciprofloxacin-Tb3+ complex, which shows astrong green emission. Ciprofloxacin (CP) makes efficient bondings to Tb3+ ion as a linker molecule through carboxylic and ketone groups to form a kind of lanthanide coordination polymer. The addition of spermine that competes with Tb3+ ions for the interaction with CP due to its positive charge brings about weakened coordination linkage of CP and Tb3+.

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A novel procedure for the optosensing of clenbuterol and melamine was developed using molecularly imprinted polymer-capped CdTe quantum dots (MIP-CdTe QDs). The MIP-CdTe QDs were synthesized by a radical polymerization process among CdTe QDs, a template, 3-aminopropyltriethoxysilane (APTES) and tetraethoxysilane (TEOS). The sizes of the MIP-CdTe particles were controlled by the speed of polymerization, concentration of the template, concentration of the quantum dots, and the ratio of template, monomer and cross-linker.

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