Sensitivity-enhanced plasmonic sensor modified with ZIF-8

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2024-10-09 DOI:10.1016/j.optlastec.2024.111885

Yanpei Xu, Yutong Song, Haixing Hao, Zhimeng Zhao, Yong Jin, Qi Wang

引用次数: 0

Abstract

ZIF-8 is a typical metal–organic framework (MOF) material, which has great potential for sensor improvement. In this paper, we prepared a high sensitivity surface plasmon resonance (SPR) sensor based on ZIF-8/Au and described the preparation process of the sensor and characterized the samples in detail. The results showed that the synthesized ZIF-8 nanoparticles were uniform with an average diameter of about 50 nm. The performance of the sensor was related to the amount of ZIF-8, which could be controlled by adjusting the number of spin-coating cycles. When the refractive index ranged from 1.3335 to 1.3635, the maximum sensitivity of the sensor reached 3961.36nm/RIU with one cycle of spin-coating, which was 74.05% higher than that of pure Au single-layer film sensor. Furthermore, the feasibility of the proposed sensor for biological sensing was demonstrated by detecting bovine serum albumin (BSA).

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用 ZIF-8 改性的灵敏度增强型等离子传感器

ZIF-8 是一种典型的金属有机框架 (MOF) 材料，在改进传感器方面具有巨大潜力。本文制备了一种基于 ZIF-8/Au 的高灵敏度表面等离子体共振（SPR）传感器，详细描述了传感器的制备过程并对样品进行了表征。结果表明，合成的 ZIF-8 纳米粒子均匀一致，平均直径约为 50 nm。传感器的性能与 ZIF-8 的含量有关，可以通过调节旋涂次数来控制。当折射率在 1.3335 至 1.3635 之间时，传感器的最大灵敏度在旋涂一次后达到 3961.36nm/RIU，比纯金单层薄膜传感器的灵敏度高 74.05%。此外，通过检测牛血清白蛋白（BSA），证明了所提出的传感器在生物传感方面的可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems