Presentation Title

Paper-Based Enzymatic Assay using Benign Indium Phosphide Quantum Dots

Faculty Mentor

David Bwambok

Start Date

23-11-2019 8:00 AM

End Date

23-11-2019 8:45 AM

Location

197

Session

poster 1

Type of Presentation

Poster

Subject Area

interdisciplinary

Abstract

Quantum dots (QDs) are semiconductor nanoparticles with size-dependent optical and electronic properties. Due to their nanometer-scale size, the properties of quantum dots are different from those of larger particles as a result of quantum confinement. When QDs absorb UV light, the electrons are excited to higher states and then relax by emitting light. Indium phosphide (InP) quantum dots (QDs) are emerging as environmentally benign alternatives to toxic cadmium-based QDs for use as fluorescent sensors. This study explored the fluorescence resonance energy transfer (FRET) between InP/ZnS QDs and an amine red dye for use as donor and acceptor pairs. The fluorescence resonance energy transfer between the amine dye and the InP/ZnS QDs was used to develop an enzymatic assay for the detection of plasmodium lactate dehydrogenase (pLDH), a biomarker for malaria.

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Nov 23rd, 8:00 AM Nov 23rd, 8:45 AM

Paper-Based Enzymatic Assay using Benign Indium Phosphide Quantum Dots

197

Quantum dots (QDs) are semiconductor nanoparticles with size-dependent optical and electronic properties. Due to their nanometer-scale size, the properties of quantum dots are different from those of larger particles as a result of quantum confinement. When QDs absorb UV light, the electrons are excited to higher states and then relax by emitting light. Indium phosphide (InP) quantum dots (QDs) are emerging as environmentally benign alternatives to toxic cadmium-based QDs for use as fluorescent sensors. This study explored the fluorescence resonance energy transfer (FRET) between InP/ZnS QDs and an amine red dye for use as donor and acceptor pairs. The fluorescence resonance energy transfer between the amine dye and the InP/ZnS QDs was used to develop an enzymatic assay for the detection of plasmodium lactate dehydrogenase (pLDH), a biomarker for malaria.