Publication:
A novel gold nanoparticle-based colorimetric assay for highly sensitive detection of ascorbic acid
A novel gold nanoparticle-based colorimetric assay for highly sensitive detection of ascorbic acid
| datacite.subject.fos | oecd::Engineering and technology | |
| dc.contributor.author | Thi Hong Anh Nguyen | |
| dc.contributor.author | Vu Tuyet Mai Nguyen | |
| dc.contributor.author | Van Thuan Le | |
| dc.contributor.author | Van-Dat Doan | |
| dc.contributor.author | Tan Phat Chau | |
| dc.contributor.author | Van Cuong Nguyen | |
| dc.contributor.author | Anh-Tien Nguyen | |
| dc.contributor.author | Yasser Vasseghian | |
| dc.date.accessioned | 2022-11-09T09:05:39Z | |
| dc.date.available | 2022-11-09T09:05:39Z | |
| dc.date.issued | 2022 | |
| dc.description.abstract | In this study, a novel approach for colorimetric detection of ascorbic acid (AA) was proposed based on the peroxidase-like activity of gold nanoparticles, which were synthesized using Oldenlandia corymbosa leaves extract (OC-AuNPs). The OC-AuNPs synthesis was optimized at 0.5 mM Au3+, a reaction time of 20 min, and a temperature of 60 °C. The results showed that the biogenic OC-AuNPs presented as highly-efficient peroxidase mimics for catalyzing H2O2 to oxidize 3,3′,5,5′-tetramethylbenzidine forming a typical blue product with the characteristic absorption at 654 nm. The developed colorimetric method exhibited high sensitivity for AA with a detection limit of 0.26 μM in the linear range of 0 – 100 μM. The proposed assay can be serviced as a sensitive biosensor for the determination of AA in aqueous solutions due to its simple detection procedure, fast operation, and high sensitivity. | |
| dc.identifier.doi | 10.1016/j.matlet.2021.131307 | |
| dc.identifier.uri | http://repository.vlu.edu.vn:443/handle/123456789/1089 | |
| dc.language.iso | en_US | |
| dc.relation.ispartof | Materials Letters | |
| dc.relation.issn | 0167-577X | |
| dc.subject | Oldenlandia corymbosa | |
| dc.subject | AuNPs | |
| dc.subject | Colorimetric detection | |
| dc.subject | Ascorbic acid | |
| dc.subject | Peroxidase mimic | |
| dc.title | A novel gold nanoparticle-based colorimetric assay for highly sensitive detection of ascorbic acid | |
| dc.type | journal-article | |
| dspace.entity.type | Publication | |
| oaire.citation.volume | 309 |