A nitrocellulose paper strip for fluorometric determination of bisphenol A using molecularly imprinted nanoparticles
Üzek, Recep (Institut Català de Nanociència i Nanotecnologia)
Sari, Esma (Institut Català de Nanociència i Nanotecnologia)
Şenel, Serap (Hacettepe University. Department of Chemistry)
Denizli, Adil (Hacettepe University. Department of Chemistry)
Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia)

Date:	2019
Abstract:	The authors describe a test stripe for fluorometric determination of the endocrine disruptor bisphenol A (BPA). Graphene quantum dots (GQDs) were immobilized on molecularly imprinted nanoparticles which then were placed on nitrocellulose paper. The GQDs display blue fluorescence (with excitation/emission peaks at 350/440 nm) which is reduced in the presence of BPA. The test stripe has a 43. 9 ± 0. 8 μg. L¯¹ limit of detection in case of water samples. The stripe was applied to the determination of BPA in (spiked) tap water and sea water, and the LODs were found to be 1. 8 ± 0. 2 μg·L¯¹ and 4. 2 ± 0. 5 μg·L¯¹ , respectively. Structural analogs of BPA, such as aminophenol, phenol, hydroquinone and naphthol were found not to interfere.
Grants:	European Commission 785219 Agencia Estatal de Investigación MAT2017-87202-P Ministerio de Economía y Competitividad SEV-2017-0706
Note:	Altres ajuts: this work is also funded by the CERCA Programme / Generalitat de Catalunya.
Rights:	Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Graphene quantum dot ; Endocrine disruptor ; Fluorescence quenching ; Paper sensor ; Molecular recognition
Published in:	Mikrochimica acta, Vol. 186, issue 4 (April 2019) , art. 218, ISSN 1436-5073

DOI: 10.1007/s00604-019-3323-y

Postprint 18 p, 1.3 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles