Synthesis of PVA-Gold and Silver Nanoparticles via PLAL to Improve the Performance of the PCF-SPR Glucose Sensor

IF 3.3 4区物理与天体物理 Q2 CHEMISTRY, PHYSICAL

Plasmonics Pub Date : 2024-08-06 DOI:10.1007/s11468-024-02434-x

Makram A. Fakhri, Bassam G. Rasheed, Malik J. Abd-Alhussain, Evan T. Salim, Ahmad S. Azzahrani, Ali Basem, Subash C. B. Gopinath

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Abstract

This study proposes a photonic crystal fiber (PCF) biosensor using the surface plasmon resonance (SPR) phenomenon. Active plasmonic nanomaterials, consisting of gold (Au) and silver (Ag) nanoparticles, were prepared via the pulsed laser ablation in liquids (PLAL) method, characterized using different techniques. These nanoparticles were subsequently mixed with a polyvinyl alcohol (PVA) solution to enhance sensitivity and compatibility for sensor applications. The PVA-Au/Ag nanoparticles were coated on the outer surface of the PCF for a simplified sensor configuration. The results showed that the sensitivities for PCF coated with PVA-gold and PVA-silver NPs are 1927 and 1397 nm/RIU with a maximum resolution of 2.51 × 10⁻⁵ RIU for samples with glucose concentration in water ranging from 80 to 600 mg/dl and maximum FOM are 853 and 855 for PCF coated with gold and silver NPs, respectively. Notably, this innovative sensor design, coupled with comprehensive nanoparticle characterization and PVA integration, holds great promise for precise and real-time glucose monitoring in many practical applications.

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通过 PLAL 合成 PVA-金和银纳米粒子以提高 PCF-SPR 葡萄糖传感器的性能

本研究提出了一种利用表面等离子体共振（SPR）现象的光子晶体光纤（PCF）生物传感器。研究人员通过液体脉冲激光烧蚀法（PLAL）制备了由金（Au）和银（Ag）纳米粒子组成的活性等离子体纳米材料，并利用不同的技术对其进行了表征。这些纳米粒子随后与聚乙烯醇（PVA）溶液混合，以提高传感器应用的灵敏度和兼容性。PVA-Au/Ag 纳米粒子被涂覆在 PCF 的外表面，以简化传感器配置。结果表明，在水中葡萄糖浓度为 80 至 600 mg/dl 的样品中，涂有 PVA 金纳米粒子和 PVA 银纳米粒子的 PCF 的灵敏度分别为 1927 和 1397 nm/RIU，最大分辨率为 2.51 × 10-5 RIU；涂有金纳米粒子和银纳米粒子的 PCF 的最大 FOM 分别为 853 和 855。值得注意的是，这种创新的传感器设计，加上全面的纳米粒子表征和 PVA 集成，为许多实际应用中的精确和实时葡萄糖监测带来了巨大的希望。

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来源期刊

Plasmonics 工程技术-材料科学：综合

CiteScore

5.90

自引率

6.70%

发文量

164

审稿时长

2.1 months

期刊介绍： Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons. Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.