Independent emission spectra of different fluorescent dyes based quasi-distributed polymer optical fiber surface plasmon resonance sensors

IF 4.3 2区化学 Q1 SPECTROSCOPY

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Pub Date : 2025-03-25 DOI:10.1016/j.saa.2025.126112

Azween Hadiera Hishamuddin , Ahmad Sabirin Zoolfakar , Nur Hidayah Azeman , Mohd Hafiz Abu Bakar , Fairuz Abdullah , Wan Mohd Ebtisyam Mustaqim Mohd Daniyal , Ahmad Ashrif A. Bakar , Maizatul Zolkapli

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Abstract

This study explores the development of quasi-distributed polymer optical fiber (POF) surface plasmon resonance (SPR) sensors, leveraging independent emission spectra for enhanced oxygen (O₂) detection. By integrating the strengths of SPR, POF, and fluorescence-based sensing techniques, this research addresses the limitations of traditional O₂ sensors. The sensors utilized platinum octaethylporphyrin (PtOEP), 5,10,15,20-tetrakis(pentafluorophenyl)-21H,23H-porphine palladium (II) (PdTFPP), and tris(4,7-diphenyl-1,10-phenanthroline) ruthenium (II) dichloride ([Ru(dpp)₃]²⁺), fluorescence dyes, providing distinct and independent emission spectra at 646 nm for Ag/PtOEP, 669 nm for Ag/PdTFPP and 520 nm for Ag/[Ru(dpp)₃]²⁺, enable multiplexing and spatially resolved measurements. It was demonstrated that Ag/PtOEP, Ag/PdTFPP and Ag/[Ru(dpp)₃]²⁺ coatings yield high sensitivity and linearity in O₂ detection. Specifically, the sensitivity values achieved are 0.048 nm/% for the Ag/PtOEP coating, 0.1317 nm/% for the Ag/PdTFPP coating, and 0.0191 nm/% for the Ag/[Ru(dpp)₃]²⁺ coating. The sensors exhibit a coefficient of determination (R²) of 0.9702, 0.9893 and 0.9337 for Ag/PtOEP, Ag/PdTFPP, and Ag/[Ru(dpp)₃]²⁺, respectively, highlighting their accuracy and reliability. The quasi-distributed POF SPR sensors have the potential to deliver precise, reliable, and real-time O₂ monitoring across various applications, including environmental monitoring, medical diagnostics, and industrial safety.

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本研究探讨了准分布式聚合物光纤（POF）表面等离子体共振（SPR）传感器的开发，利用独立发射光谱增强氧气（O2）检测。通过整合 SPR、POF 和荧光传感技术的优势，这项研究解决了传统氧气传感器的局限性。传感器采用了八乙基卟啉铂（PtOEP）、5,10,15,20-四（五氟苯基）-21H,23H-卟吩钯（II）（PdTFPP）和三（4,7-二苯基-1,10-菲罗啉）二氯化钌（II）（[Ru(dpp)3]2+）、荧光染料在 Ag/PtOEP 的 646 纳米、Ag/PdTFPP 的 669 纳米和 Ag/[Ru(dpp)3]2+的 520 纳米波长处提供了不同且独立的发射光谱，从而实现了多路复用和空间分辨测量。研究表明，Ag/PtOEP、Ag/PdTFPP 和 Ag/[Ru(dpp)3]2+涂层在检测氧气方面具有高灵敏度和线性度。具体来说，Ag/PtOEP 涂层的灵敏度值为 0.048 nm/%，Ag/PdTFPP 涂层的灵敏度值为 0.1317 nm/%，Ag/[Ru(dpp)3]2+ 涂层的灵敏度值为 0.0191 nm/%。Ag/PtOEP、Ag/PdTFPP 和 Ag/[Ru(dpp)3]2+传感器的判定系数 (R2) 分别为 0.9702、0.9893 和 0.9337，显示了其准确性和可靠性。准分布式 POF SPR 传感器有望在环境监测、医疗诊断和工业安全等各种应用中提供精确、可靠和实时的氧气监测。

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来源期刊

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 物理-光谱学

CiteScore

8.40

自引率

11.40%

发文量

1364

审稿时长

40 days

期刊介绍： Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (SAA) is an interdisciplinary journal which spans from basic to applied aspects of optical spectroscopy in chemistry, medicine, biology, and materials science. The journal publishes original scientific papers that feature high-quality spectroscopic data and analysis. From the broad range of optical spectroscopies, the emphasis is on electronic, vibrational or rotational spectra of molecules, rather than on spectroscopy based on magnetic moments. Criteria for publication in SAA are novelty, uniqueness, and outstanding quality. Routine applications of spectroscopic techniques and computational methods are not appropriate. Topics of particular interest of Spectrochimica Acta Part A include, but are not limited to: Spectroscopy and dynamics of bioanalytical, biomedical, environmental, and atmospheric sciences, Novel experimental techniques or instrumentation for molecular spectroscopy, Novel theoretical and computational methods, Novel applications in photochemistry and photobiology, Novel interpretational approaches as well as advances in data analysis based on electronic or vibrational spectroscopy.