Electrochemical behaviour of real-time sensor for determination mercury in cosmetic products based on PANI/MWCNTs/AuNPs/ITO
Mercury is a common ingredient found in skin lightening soaps, creams, and makeup-cleansing products. It may cause skin rashes, skin discolouration, and scarring, as well as a reduction in the skin’s resistance to bacterial and fungal infections. By looking at this scenario, developing a sensor that...
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my.ums.eprints.308912021-10-29T03:08:56Z https://eprints.ums.edu.my/id/eprint/30891/ Electrochemical behaviour of real-time sensor for determination mercury in cosmetic products based on PANI/MWCNTs/AuNPs/ITO Noor Aini Bohari Shafiquzzaman Siddiquee Suryani Saallah Mailin Misson Sazmal Effendi Arshad QD450-801 Physical and theoretical chemistry Mercury is a common ingredient found in skin lightening soaps, creams, and makeup-cleansing products. It may cause skin rashes, skin discolouration, and scarring, as well as a reduction in the skin’s resistance to bacterial and fungal infections. By looking at this scenario, developing a sensor that involved a simple procedure and fasts for real-time detection without affecting mercury sensitivity is urgently needed. For that reason, a fast and sensitive electrochemical method was developed to determine mercury in cosmetic products with the composition of polyaniline/multi-walled carbon nanotubes/gold nanoparticles/indium tin oxide sheet using methylene blue as a redox indicator. The significantly enhanced electrochemical performance was observed using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). In order to detect mercury qualitatively and quantitatively, deposition potential and deposition time were respectively optimised to be 0.10 V and 70 s. The modified sensor was revealed a wide detection range of mercury from 0.01 to 10.00 ppm with a limit of detection of 0.08 ppm. The modified sensor towards mercury with a correlation coefficient (r2 ) was of 0.9948. Multiple cycling, reproducibility, and consistency of different modified sensors were investigated to verify the modified sensor’s performance. The developed sensing platform was highly selective toward mercury among the pool of possible interferents, and the stability of the developed sensor was ensured for at least 21 days after 10 repeated uses. The proposed method is a fast and simple procedure technique for analysing the mercury levels in cosmetic products. MDPI AG 2021 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/30891/1/Electrochemical%20behaviour%20of%20real-time%20sensor%20for%20determination%20mercury%20in%20cosmetic%20products_ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/30891/2/Electrochemical%20behaviour%20of%20real-time%20sensor%20for%20determination%20mercury%20in%20cosmetic%20products.pdf Noor Aini Bohari and Shafiquzzaman Siddiquee and Suryani Saallah and Mailin Misson and Sazmal Effendi Arshad (2021) Electrochemical behaviour of real-time sensor for determination mercury in cosmetic products based on PANI/MWCNTs/AuNPs/ITO. Cosmetics, 8. pp. 1-15. ISSN 2079-9284 https://www.mdpi.com/2079-9284/8/1/17/htm https://doi.org/10.3390/cosmetics8010017 |
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QD450-801 Physical and theoretical chemistry Noor Aini Bohari Shafiquzzaman Siddiquee Suryani Saallah Mailin Misson Sazmal Effendi Arshad Electrochemical behaviour of real-time sensor for determination mercury in cosmetic products based on PANI/MWCNTs/AuNPs/ITO |
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Mercury is a common ingredient found in skin lightening soaps, creams, and makeup-cleansing products. It may cause skin rashes, skin discolouration, and scarring, as well as a reduction in the skin’s resistance to bacterial and fungal infections. By looking at this scenario, developing a sensor that involved a simple procedure and fasts for real-time detection without affecting mercury sensitivity is urgently needed. For that reason, a fast and sensitive electrochemical method was developed to determine mercury in cosmetic products with the composition of polyaniline/multi-walled carbon nanotubes/gold nanoparticles/indium tin oxide sheet using methylene blue as a redox indicator. The significantly enhanced electrochemical performance was observed using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). In order to detect mercury qualitatively and quantitatively, deposition potential and deposition time were respectively optimised to be 0.10 V and 70 s. The modified sensor was revealed a wide detection range of mercury from 0.01 to 10.00 ppm with a limit of detection of 0.08 ppm. The modified sensor towards mercury with a correlation coefficient (r2 ) was of 0.9948. Multiple cycling, reproducibility, and consistency of different modified sensors were investigated to verify the modified sensor’s performance. The developed sensing platform was highly selective toward mercury among the pool of possible interferents, and the stability of the developed sensor was ensured for at least 21 days after 10 repeated uses. The proposed method is a fast and simple procedure technique for analysing the mercury levels in cosmetic products. |
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Article |
author |
Noor Aini Bohari Shafiquzzaman Siddiquee Suryani Saallah Mailin Misson Sazmal Effendi Arshad |
author_facet |
Noor Aini Bohari Shafiquzzaman Siddiquee Suryani Saallah Mailin Misson Sazmal Effendi Arshad |
author_sort |
Noor Aini Bohari |
title |
Electrochemical behaviour of real-time sensor for determination mercury in cosmetic products based on PANI/MWCNTs/AuNPs/ITO |
title_short |
Electrochemical behaviour of real-time sensor for determination mercury in cosmetic products based on PANI/MWCNTs/AuNPs/ITO |
title_full |
Electrochemical behaviour of real-time sensor for determination mercury in cosmetic products based on PANI/MWCNTs/AuNPs/ITO |
title_fullStr |
Electrochemical behaviour of real-time sensor for determination mercury in cosmetic products based on PANI/MWCNTs/AuNPs/ITO |
title_full_unstemmed |
Electrochemical behaviour of real-time sensor for determination mercury in cosmetic products based on PANI/MWCNTs/AuNPs/ITO |
title_sort |
electrochemical behaviour of real-time sensor for determination mercury in cosmetic products based on pani/mwcnts/aunps/ito |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://eprints.ums.edu.my/id/eprint/30891/1/Electrochemical%20behaviour%20of%20real-time%20sensor%20for%20determination%20mercury%20in%20cosmetic%20products_ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/30891/2/Electrochemical%20behaviour%20of%20real-time%20sensor%20for%20determination%20mercury%20in%20cosmetic%20products.pdf https://eprints.ums.edu.my/id/eprint/30891/ https://www.mdpi.com/2079-9284/8/1/17/htm https://doi.org/10.3390/cosmetics8010017 |
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13.18916 |