Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이은희 | * |
dc.date.accessioned | 2019-03-27T16:30:06Z | - |
dc.date.available | 2019-03-27T16:30:06Z | - |
dc.date.issued | 2019 | * |
dc.identifier.issn | 0308-8146 | * |
dc.identifier.other | OAK-24501 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/249516 | - |
dc.description.abstract | A colorimetric aptasensor was developed for the simple and rapid detection of bisphenol A (BPA). The aptasensor was designed to consist of colloidal gold nanoparticles (AuNPs) and a BPA-specific 24-bp aptamer. The AuNP-aptamer conjugates underwent an electrolyte-induced aggregation in the presence of sub-ppb levels of BPA. The surface plasmon resonance shift of AuNPs facilitated a color change from red to blue upon aggregation, which was visually observed by the naked eye. The corresponding visual limit of detection of BPA was as low as 1 pg/mL (0.004 nM). The aptasensor also achieved a selective detection of BPA over a variety of BPA analogs. The applicability of the aptasensor was verified via a successful detection of BPA in a single grain of rice. This result indicates that the colorimetric aptasensor can be used in a screening procedure for food and environmental monitoring, with reliable performance to sub-ppb levels of BPA detection. © 2019 Elsevier Ltd | * |
dc.language | English | * |
dc.publisher | Elsevier Ltd | * |
dc.subject | Aptamer | * |
dc.subject | Biosensor | * |
dc.subject | Bisphenol A | * |
dc.subject | Endocrine disruptor | * |
dc.subject | Gold nanoparticles | * |
dc.subject | Rice grain | * |
dc.title | Simple and rapid detection of bisphenol A using a gold nanoparticle-based colorimetric aptasensor | * |
dc.type | Article | * |
dc.relation.volume | 287 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 205 | * |
dc.relation.lastpage | 213 | * |
dc.relation.journaltitle | Food Chemistry | * |
dc.identifier.doi | 10.1016/j.foodchem.2019.02.079 | * |
dc.identifier.wosid | WOS:000460630600025 | * |
dc.identifier.scopusid | 2-s2.0-85062156781 | * |
dc.author.google | Lee E.-H. | * |
dc.author.google | Lee S.K. | * |
dc.author.google | Kim M.J. | * |
dc.author.google | Lee S.-W. | * |
dc.contributor.scopusid | 이은희(55773710100;56141882500) | * |
dc.date.modifydate | 20240322131733 | * |