Nanocrystalline cellulose decorated quantum dots based tyrosinase biosensor for phenol determination
Novel biosensor architecture based on nanocrystalline cellulose (NCC)/CdS quantum dots (QDs) nanocomposite was developed for phenol determination. This nanocomposite was prepared with slight modification of nanocrystalline cellulose (NCC) with cationic surfactant of cetyltriammonium bromide (CTAB) a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier BV
2019
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| Online Access: | http://psasir.upm.edu.my/id/eprint/81450/1/Nanocrystalline%20cellulose%20decorated%20quantum%20dots%20based%20tyrosinase%20biosensor%20for%20phenol%20determination.pdf |
| _version_ | 1796980916356120576 |
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| author | Abd Manan, Fariza Aina Hong, Wai Weng Abdullah, Jaafar Yusof, Nor Azah Ahmad, Ishak |
| author_facet | Abd Manan, Fariza Aina Hong, Wai Weng Abdullah, Jaafar Yusof, Nor Azah Ahmad, Ishak |
| author_sort | Abd Manan, Fariza Aina |
| collection | UPM |
| description | Novel biosensor architecture based on nanocrystalline cellulose (NCC)/CdS quantum dots (QDs) nanocomposite was developed for phenol determination. This nanocomposite was prepared with slight modification of nanocrystalline cellulose (NCC) with cationic surfactant of cetyltriammonium bromide (CTAB) and further decorated with 3-mercaptopropionic acid (3-MPA) capped CdS QDs. The nanocomposite material was then employed as scaffold for immobilization of tyrosinase enzyme (Tyr). The electrocatalytic response of Tyr/CTAB-NCC/QDs nanocomposite towards phenol was evaluated using differential pulse voltammetry (DPV). The current response obtained is proportional to the concentration of phenol which attributed to the reduction of o-quinone produced at the surface of the modified electrode. Under the optimal conditions, the biosensor exhibits good linearity towards phenol in the concentration range of 5–40 μM (R2 = 0.9904) with sensitivity and limit of detection (LOD) of 0.078 μA/μM and 0.082 μM, respectively. |
| first_indexed | 2024-03-06T10:30:05Z |
| format | Article |
| id | upm.eprints-81450 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:30:05Z |
| publishDate | 2019 |
| publisher | Elsevier BV |
| record_format | dspace |
| spelling | upm.eprints-814502021-01-31T15:07:01Z http://psasir.upm.edu.my/id/eprint/81450/ Nanocrystalline cellulose decorated quantum dots based tyrosinase biosensor for phenol determination Abd Manan, Fariza Aina Hong, Wai Weng Abdullah, Jaafar Yusof, Nor Azah Ahmad, Ishak Novel biosensor architecture based on nanocrystalline cellulose (NCC)/CdS quantum dots (QDs) nanocomposite was developed for phenol determination. This nanocomposite was prepared with slight modification of nanocrystalline cellulose (NCC) with cationic surfactant of cetyltriammonium bromide (CTAB) and further decorated with 3-mercaptopropionic acid (3-MPA) capped CdS QDs. The nanocomposite material was then employed as scaffold for immobilization of tyrosinase enzyme (Tyr). The electrocatalytic response of Tyr/CTAB-NCC/QDs nanocomposite towards phenol was evaluated using differential pulse voltammetry (DPV). The current response obtained is proportional to the concentration of phenol which attributed to the reduction of o-quinone produced at the surface of the modified electrode. Under the optimal conditions, the biosensor exhibits good linearity towards phenol in the concentration range of 5–40 μM (R2 = 0.9904) with sensitivity and limit of detection (LOD) of 0.078 μA/μM and 0.082 μM, respectively. Elsevier BV 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/81450/1/Nanocrystalline%20cellulose%20decorated%20quantum%20dots%20based%20tyrosinase%20biosensor%20for%20phenol%20determination.pdf Abd Manan, Fariza Aina and Hong, Wai Weng and Abdullah, Jaafar and Yusof, Nor Azah and Ahmad, Ishak (2019) Nanocrystalline cellulose decorated quantum dots based tyrosinase biosensor for phenol determination. Materials Science & Engineering C, 99. pp. 37-46. ISSN 0928-4931 https://www.sciencedirect.com/science/article/abs/pii/S0928493118300572 10.1016/j.msec.2019.01.082 |
| spellingShingle | Abd Manan, Fariza Aina Hong, Wai Weng Abdullah, Jaafar Yusof, Nor Azah Ahmad, Ishak Nanocrystalline cellulose decorated quantum dots based tyrosinase biosensor for phenol determination |
| title | Nanocrystalline cellulose decorated quantum dots based tyrosinase biosensor for phenol determination |
| title_full | Nanocrystalline cellulose decorated quantum dots based tyrosinase biosensor for phenol determination |
| title_fullStr | Nanocrystalline cellulose decorated quantum dots based tyrosinase biosensor for phenol determination |
| title_full_unstemmed | Nanocrystalline cellulose decorated quantum dots based tyrosinase biosensor for phenol determination |
| title_short | Nanocrystalline cellulose decorated quantum dots based tyrosinase biosensor for phenol determination |
| title_sort | nanocrystalline cellulose decorated quantum dots based tyrosinase biosensor for phenol determination |
| url | http://psasir.upm.edu.my/id/eprint/81450/1/Nanocrystalline%20cellulose%20decorated%20quantum%20dots%20based%20tyrosinase%20biosensor%20for%20phenol%20determination.pdf |
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