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Zorlu T, Puértolas B, Becerril-Castro IB, Guerrini L, Giannini V, Correa-Duarte MA, Alvarez-Puebla RA. Optical Quantification of Metal Ions Using Plasmonic Nanostructured Microbeads Coated with Metal-Organic Frameworks and Ion-Selective Dyes. ACS NANOSCIENCE AU 2023; 3:222-229. [PMID: 37360844 PMCID: PMC10288605 DOI: 10.1021/acsnanoscienceau.2c00063] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 06/28/2023]
Abstract
Herein, we designed and synthesized a hybrid material comprising polystyrene submicrobeads coated with silver nanospheres. This material provides a dense collection of electromagnetic hot spots upon illumination with visible light. The subsequent coating with a metal-framework and the adsorption of bathocuproine on it yield an optical sensor for SERS that can specifically detect Cu(II) in a variety of aqueous samples at the ultratrace level. Detection limits with this method are superior to those of induced coupled plasma or atomic absorption and comparable with those obtained with induced coupled plasma coupled with a mass detector.
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Affiliation(s)
- Tolga Zorlu
- Department
of Physical and Inorganic Chemistry, Universitat
Rovira i Virgili, Carrer de Marcel·lí Domingo s/n, 43007 Tarragona, Spain
- Department
of Physical Chemistry, Center for Biomedical Research (CINBIO), Southern
Galicia Institute of Health Research (IISGS) and Biomedical Research
Networking Center for Mental Health (CIBERSAM), Universidade de Vigo, 36310 Vigo, Spain
| | - Begoña Puértolas
- Department
of Physical Chemistry, Center for Biomedical Research (CINBIO), Southern
Galicia Institute of Health Research (IISGS) and Biomedical Research
Networking Center for Mental Health (CIBERSAM), Universidade de Vigo, 36310 Vigo, Spain
| | - I. Brian Becerril-Castro
- Department
of Physical and Inorganic Chemistry, Universitat
Rovira i Virgili, Carrer de Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Luca Guerrini
- Department
of Physical and Inorganic Chemistry, Universitat
Rovira i Virgili, Carrer de Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Vincenzo Giannini
- Technology
Innovation Institute, Masdar City, 9639 Abu Dhabi, United Arab Emirates
- Centre
of Excellence ENSEMBLE3 sp. z o.o., Wolczynska 133, 01-919 Warsaw, Poland
| | - Miguel A. Correa-Duarte
- Department
of Physical Chemistry, Center for Biomedical Research (CINBIO), Southern
Galicia Institute of Health Research (IISGS) and Biomedical Research
Networking Center for Mental Health (CIBERSAM), Universidade de Vigo, 36310 Vigo, Spain
| | - Ramon A. Alvarez-Puebla
- Department
of Physical and Inorganic Chemistry, Universitat
Rovira i Virgili, Carrer de Marcel·lí Domingo s/n, 43007 Tarragona, Spain
- ICREA, Passeig Lluís Companys 23, 08010 Barcelona, Spain
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