Egg Yolk Powder Carbon Quantum Dots as a Potential Detection Probe for Malathion in Eggplant (Solanum melongena)/ Ron Olive B. Alforte, Mariel Aquino, Bryan John A. Enoceña, and Eduardo A. Soriano II

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Alforte, Ron Olive B [author ]

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Material type: Text

TextPublication details: Manila: Technological University of the Philippines, 2023Description: vi, 92pages: 29cm. +1 CD ROM (3/4in.)Content type:

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BTH RB 37 A44 2023

Dissertation note: College of Science .-- Bachelor of Science major in Laboratory Technology: Technological University of the Philippines, 2023. Summary: Pesticide residues are distinguished by high levels of environmental persistence and toxicity to both humans and animals. Several farmers utilize various pesticides, including organophosphate insecticides, and malathion is among the most used pesticides. In this study, the researchers used egg yolk powder carbon quantum dots (EYP CQDs) to detect pesticide residues in eggplant fruit by synthesizing a commercially available egg yolk powder using a hydrothermal method, water extraction, dialysis, and filtration. The prepared nanomaterial was chara.cterized based on their morphology, chemical and optical properties, and stability using microscopy and spectrophotometry equipment. The EYP CQDs showed bright blue fluorescence under UV light at 350 nm wavelength and were used to detect trace concentrations of malathion pesticides by its fluorescence quenching. In a small amount of volume, EYP CQDs showed fluorescence quenching properties in different malathion concentrations, which proved that the synthesized nano-sensor is sensitive. Furthermore, it can be a good sensor for environmental and food safety monitoring.

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Thesis (undergraduate)

College of Science .-- Bachelor of Science major in Laboratory Technology: Technological University of the Philippines, 2023.

Includes bibliography:

Pesticide residues are distinguished by high levels of environmental persistence and
toxicity to both humans and animals. Several farmers utilize various pesticides, including
organophosphate insecticides, and malathion is among the most used pesticides. In this
study, the researchers used egg yolk powder carbon quantum dots (EYP CQDs) to detect
pesticide residues in eggplant fruit by synthesizing a commercially available egg yolk
powder using a hydrothermal method, water extraction, dialysis, and filtration. The
prepared nanomaterial was chara.cterized based on their morphology, chemical and optical
properties, and stability using microscopy and spectrophotometry equipment. The EYP
CQDs showed bright blue fluorescence under UV light at 350 nm wavelength and were
used to detect trace concentrations of malathion pesticides by its fluorescence quenching.
In a small amount of volume, EYP CQDs showed fluorescence quenching properties in
different malathion concentrations, which proved that the synthesized nano-sensor is
sensitive. Furthermore, it can be a good sensor for environmental and food safety
monitoring.

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