封面圖片

Development of films based on tapioca starch/gold nanoparticles for the detection of organophosphorus pesticides

Organophosphorus pesticides (OPs) are used in crops to eradicate pests, but are of concern to the public, attributable to their potential toxicity to human health. In the present study, a biodegradable composite film containing citrate-stabilized gold nanoparticles (AuNPs) was developed to detect pe...

全面介紹

Saved in:
書目詳細資料
Main Authors: Rovina Kobun, Sylvester Mantihal, Juanita Joseph, Nur Fatihah Abd Halid, Joseph Merillyn Vonnie
格式: Article
語言:English
出版: Springer 2021
主題:
T Technology (General)
在線閱讀:https://eprints.ums.edu.my/id/eprint/29371/1/Development%20of%20films%20based%20on%20tapioca%20starch%20gold%20nanoparticles%20for%20the%20detection%20of%20organophosphorus%20pesticides.pdf
https://eprints.ums.edu.my/id/eprint/29371/
https://link.springer.com/article/10.1007/s00003-021-01321-5#citeas
https://doi.org/10.1007/s00003-021-01321-5
標簽: 添加標簽
沒有標簽, 成為第一個標記此記錄!
id my.ums.eprints.29371
record_format eprints
spelling my.ums.eprints.293712021-07-27T09:21:41Z https://eprints.ums.edu.my/id/eprint/29371/ Development of films based on tapioca starch/gold nanoparticles for the detection of organophosphorus pesticides Rovina Kobun Sylvester Mantihal Juanita Joseph Nur Fatihah Abd Halid Joseph Merillyn Vonnie T Technology (General) Organophosphorus pesticides (OPs) are used in crops to eradicate pests, but are of concern to the public, attributable to their potential toxicity to human health. In the present study, a biodegradable composite film containing citrate-stabilized gold nanoparticles (AuNPs) was developed to detect pesticides. The proposed composite film has distinctive structural and functional characteristics as a colorimetric recognition indicator for detecting OPs (malathion, fenthion, dimethoate, and chlorpyrifos). The developed film was morphologically and spectroscopically characterized through electron microscopy and UV–Vis spectrometry, respectively. The spherical-shaped and monodispersed AuNPs were obtained with an average particle size of 20 nm. The aggregation of the AuNPs composite film in the presence of pesticides led to a change in color from red to blueish purple, which could be visually observed on the surface of the vegetables. Under optimum conditions, the detection limit was 2.02 μM, 1.33 μM, 2.27 μM, and 11.77 μM for malathion, fenthion, dimethoate, and chlorpyrifos, respectively. The developed films demonstrated good biodegradability, and excellent storage stability, sensitivity and selectivity, with recovery values ranging from 99.60 to 103.68%, and relative standard deviation (RSD) values from 0.56 to 5.76%. The findings indicate a sensitive and selective sensing biodegradable colorimetric film, which is eco-friendly, biodegradable, considered to have promising low-costs, and a renewable source material for detecting pesticide residues. Springer 2021 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/29371/1/Development%20of%20films%20based%20on%20tapioca%20starch%20gold%20nanoparticles%20for%20the%20detection%20of%20organophosphorus%20pesticides.pdf Rovina Kobun and Sylvester Mantihal and Juanita Joseph and Nur Fatihah Abd Halid and Joseph Merillyn Vonnie (2021) Development of films based on tapioca starch/gold nanoparticles for the detection of organophosphorus pesticides. Journal of Consumer Protection and Food Safety, 16. pp. 143-152. ISSN 1661-5751 https://link.springer.com/article/10.1007/s00003-021-01321-5#citeas https://doi.org/10.1007/s00003-021-01321-5
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
topic T Technology (General)
spellingShingle T Technology (General)
Rovina Kobun
Sylvester Mantihal
Juanita Joseph
Nur Fatihah Abd Halid
Joseph Merillyn Vonnie
Development of films based on tapioca starch/gold nanoparticles for the detection of organophosphorus pesticides
description Organophosphorus pesticides (OPs) are used in crops to eradicate pests, but are of concern to the public, attributable to their potential toxicity to human health. In the present study, a biodegradable composite film containing citrate-stabilized gold nanoparticles (AuNPs) was developed to detect pesticides. The proposed composite film has distinctive structural and functional characteristics as a colorimetric recognition indicator for detecting OPs (malathion, fenthion, dimethoate, and chlorpyrifos). The developed film was morphologically and spectroscopically characterized through electron microscopy and UV–Vis spectrometry, respectively. The spherical-shaped and monodispersed AuNPs were obtained with an average particle size of 20 nm. The aggregation of the AuNPs composite film in the presence of pesticides led to a change in color from red to blueish purple, which could be visually observed on the surface of the vegetables. Under optimum conditions, the detection limit was 2.02 μM, 1.33 μM, 2.27 μM, and 11.77 μM for malathion, fenthion, dimethoate, and chlorpyrifos, respectively. The developed films demonstrated good biodegradability, and excellent storage stability, sensitivity and selectivity, with recovery values ranging from 99.60 to 103.68%, and relative standard deviation (RSD) values from 0.56 to 5.76%. The findings indicate a sensitive and selective sensing biodegradable colorimetric film, which is eco-friendly, biodegradable, considered to have promising low-costs, and a renewable source material for detecting pesticide residues.
format Article
author Rovina Kobun
Sylvester Mantihal
Juanita Joseph
Nur Fatihah Abd Halid
Joseph Merillyn Vonnie
author_facet Rovina Kobun
Sylvester Mantihal
Juanita Joseph
Nur Fatihah Abd Halid
Joseph Merillyn Vonnie
author_sort Rovina Kobun
title Development of films based on tapioca starch/gold nanoparticles for the detection of organophosphorus pesticides
title_short Development of films based on tapioca starch/gold nanoparticles for the detection of organophosphorus pesticides
title_full Development of films based on tapioca starch/gold nanoparticles for the detection of organophosphorus pesticides
title_fullStr Development of films based on tapioca starch/gold nanoparticles for the detection of organophosphorus pesticides
title_full_unstemmed Development of films based on tapioca starch/gold nanoparticles for the detection of organophosphorus pesticides
title_sort development of films based on tapioca starch/gold nanoparticles for the detection of organophosphorus pesticides
publisher Springer
publishDate 2021
url https://eprints.ums.edu.my/id/eprint/29371/1/Development%20of%20films%20based%20on%20tapioca%20starch%20gold%20nanoparticles%20for%20the%20detection%20of%20organophosphorus%20pesticides.pdf
https://eprints.ums.edu.my/id/eprint/29371/
https://link.springer.com/article/10.1007/s00003-021-01321-5#citeas
https://doi.org/10.1007/s00003-021-01321-5
_version_ 1760230682716536832
score 13.251813

相似書籍