Ultrasensitive Detection and Wide Dynamic Range Pyrene Quantification Based on Luminescence Restoration of β-Cyclodextrin-Functionalized Silicon Nanowires

Regina Maria Chiechio; Antonio Alessio Leonardi; Fausto Puntoriero; Rosaria Anna Picca; Alessia Irrera; Federica Scollo; Riccardo Reitano; Annalinda Contino; Francesco Priolo; Giuseppe Maccarrone; Paolo Musumeci

doi:10.1021/acsanm.3c06151

journal article·2024-10-11

Ultrasensitive Detection and Wide Dynamic Range Pyrene Quantification Based on Luminescence Restoration of β-Cyclodextrin-Functionalized Silicon Nanowires

Regina Maria Chiechio, Antonio Alessio Leonardi, Fausto Puntoriero, Rosaria Anna Picca, Alessia Irrera, Federica Scollo, Riccardo Reitano, Annalinda Contino, Francesco Priolo, Giuseppe Maccarrone, Paolo Musumeci

ACS Applied Nano Materials· Volume 7· Issue 19

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Source abstract

Abstract

This study presents a breakthrough in the detection of polycyclic aromatic hydrocarbons (PAHs), particularly pyrene, recognized as persistent organic pollutants (POPs) with significant bioaccumulation and cancer risks. An optical sensor based on silicon nanowires (Si NWs) is presented, leveraging an approach that combines silane treatment and functionalization with 6-monodeoxy-6-monoamino-β-cyclodextrin. This method innovatively utilizes the quantum-confinement properties of Si NWs and noncovalent interactions for molecular recognition, enabling highly sensitive pyrene detection in water without prior treatment. The anchoring of β-CD quenches the optical emission of quantum-confined carriers in Si NWs, whereas the inclusion of pyrene in the receptor cavity restores the luminescence of the system, producing a disruption of luminescence quenching induced by the analyte. The sensor achieves a limit of detection (LoD) of 2 × 10 –4 ppb and a limit of quantification (LoQ) of 0.01 ppb, covering a dynamic range over 6 orders of magnitude. This advancement integrates nanophotonics and supramolecular chemistry, marking a significant leap in environmental monitoring methodologies.

Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Analytical Chemistry and Sensors · Luminescence and Fluorescent Materials · Carbon Nanotubes in Composites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Dipartimento di Fisica e Astronomia “Ettore Majorana”, Università di Catania, Via Santa Sofia 64, Catania 95123, Italy

Institut des Sciences Chimiques de Rennes, CNRS UMR 6226, Université Rennes 1, Avenue du général Leclerc, Rennes 35042, France

Consiglio Nazionale delle Ricerche, Istituto per la Microelettronica e i Microsistemi (CNR-IMM), Via S. Sofia 64, Catania 95123, Italy

CNR URT Lab SENS, Beyond NANO, Viale Ferdinando Stagno d’Alcontres 31, Messina 98166, Italy

Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, via F. Stagno d’Alcontres 31, Messina 98166, Italy

Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona,4, Bari, BA 70125, Italy

CSGI (Center for Colloid and Surface Science) Bari Unit, University of Bari Aldo Moro, Via E. Orabona, 4, Bari , BA 70125, Italy

Department of Biophysical Chemistry, J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Prague 18200, Czech Republic

Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, Catania 95125, Italy

Funding

European Commission · Ministero dell'Universit? e della Ricerca

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