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2024-11-23 17:51

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Conference: Bucharest University Faculty of Physics 2022 Meeting

Section: Solid State Physics and Materials Science, Optics, Spectroscopy, Plasma and Lasers

Title:

Cadmium ions (cd2+) detection using a portable plasmonic based optical fiber sensor

Authors:

Bianca-Georgiana ȘOLOMONEA(1,2), Luiza-Izabela JINGA(1), Vlad-Andrei ANTOHE(2,3), Gabriel SOCOL(1), Iulia ANTOHE(1)

Affiliation:

1) National Institute for Lasers, Plasma and Radiation Physics (INFLPR), Atomiştilor 409, 077125, Măgurele, Ilfov, Romania.

2) University of Bucharest, Faculty of Physics, Research and Development Center for Materials and Electronic & Optoelectronic Devices (MDEO), Atomiştilor 405, 077125 Măgurele, Ilfov, Romania.

3) Université catholique de Louvain, Institute of Condensed Matter and Nanosciences (IMCN), Place Croix du Sud 1, 1348 Louvain-la-Neuve, Belgium.

E-mail

iulia.antohe@inflpr.ro, biancasolomonea@yahoo.com

Keywords:

Cadmium ions, fiber optic (FO) technology based on surface plasmon resonance (SPR) phenomenon, bovine serum albumin(BSA), polyaniline(PANI), X-ray photoelectron spectroscopy (XPS)

Abstract:

Cadmium is one of the most studied nonessential heavy metal nowadays. It is found on Earth’s crust in significant quantities and is used industrially for batteries and pigments manufacturing [1]. This heavy metal proved to be very harmful for the ecosystem and people’s health, therefore, the amount of cadmium allowed in water is 0.005 ppm [2]. There are several sources that bring cadmium into organism such as: air and cigarette smoke and food (mushrooms, cereals, cocoa powder) [3]. Unfortunately, cadmium ions (Cd2+) can cause multiple system disorders such as cancer, heart diseases, muscular and bones problems and gastrointestinal diseases [4, 5]. There are some traditional methods for Cd2+ detection, such as the spectrometric and the chromatographic methods, but they require expensive and complex instruments, costly maintenance and highly qualified personnel to handle the equipment [6]. Distinct than the detection techniques mentioned above, fiber optic (FO) technology based on surface plasmon resonance (SPR) phenomenon is relatively new and offers many advantages such as simplicity, portability, viability, low cost and possibility for miniaturization. Two strategies for cadmium ions Cd2+ detection in water samples were used in this study: using a gold coated fiber optic- surface plasmon resonance sensor (FO-SPR) functionalized with bovine serum albumin (BSA) protein and polyaniline (PANI) conductive polymer, respectively. The two Cd2+ detection methods were analysed and compared. The BSA functionalized FO-SPR sensor indicated better sensitivity and limit of detection (LOD) for Cd2+ down to nanomolar level. Using the X-ray photoelectron spectroscopy (XPS) technique, one could confirm the presence of Cd2+ on the fiber optic sensor surface and also to determine the atomic percentage of absorbed Cd2+. Concluding, the FO-SPR sensors have indicated good sensitivity for Cd2+. Moreover, the proposed FO-SPR sensor is also low-cost and easy to manufacture and could be used for in-situ environmental monitoring and drinking water quality control.

References:

[1] Paul B Tchounwou, Clement G Yedjou, Anita K Patlolla, and Dwayne J Sutton, Heavy metal toxicity and the environment. Molecular, clinical and environmental toxicology, 133-164., 2012.

[2]Jagna Chmielowska-Bak, Jaroslaw Gzyl, Renata Rucinska-Sobkowiak, Magdalena Arasimowicz-Jelonek, and Joanna Deckert. The new insights into cadmium sensing.

Frontiers in plant science, 5:245, 2014.

[3] Sabine Martin and Wendy Griswold. Human health effects of heavy metals. Environmental Science and Technology briefs for citizens, 15:1–6, 2009.

[4] Ya-nan Zhang, Yang Sun, Lu Cai, Yiping Gao, and Yi Cai. Optical fiber sensors for measurement of heavy metal ion concentration: A review. Measurement, 158:107742, 2020.

[5] Reena Singh, Neetu Gautam, Anurag Mishra, and Rajiv Gupta. Heavy metals and living systems: An overview. Indian journal of pharmacology, 43(3):246, 2011.

[6] James D Winefordner and Robert C Elser. Atomic fluorescence spectrometry. Analytical Chemistry, 43(4):24A–42a, 1971.

Acknowledgement:

This work was financially supported by the National Authority for Research and Innovation in the frame of Nucleus Programme - LAPLAS VI (contract 16N/08.02.2019) and by the Executive Agency for Higher Education, Research, Development and Innovation (UEFISCDI) funding, Project PD 195/2020 (PN-III-P1-1.1-PD-2019-0466) and Project TE 115/2020 (PN-III-P1-1.1-TE-2019-0868).