Plasmonic Porous ZIF-8/Au NPs Platforms: A Complex Matrix Enhances SERS Substrate for Micromolar-Trace Detection of Several Analytes

IF 3.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Langmuir Pub Date : 2025-03-03 DOI:10.1021/acs.langmuir.4c0489110.1021/acs.langmuir.4c04891

Do Thao Anh, Nguyen La Ngoc Tran, Nguyen Bao Tran, Ta Ngoc Bach, Quan Doan Mai and Nhu Hoa Thi Tran*,

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引用次数: 0

Abstract

Surface-enhanced Raman scattering (SERS) is an advantageous method for organic chemical and biological sensing. Benzoic acid, benzisothiazolinone, and thiram are common model compounds used to study the interaction of toxic substances with metal surfaces using SERS spectroscopy. Metal–organic frameworks, with their high porosity and large surface area, have recently received a lot of attention in sensing applications. Plasmonic porous structures are promising SERS substrates because of their high broadband charge-transfer resonance and reproducibility of fabrication. Furthermore, the exceptional enhancement of the electromagnetic field makes plasmonic nanomaterials ideal SERS substrates. In this study, we developed SERS substrates based on ZIF-8/Au NPs through a self-assembly process that forms stacked layers. The ZIF-8/Au NPs substrate demonstrated a remarkable ability to enhance Raman scattering, enabling ultrasensitive detection of various target molecules at micromolar concentrations. These attributes establish it as a promising SERS substrate for biosensing applications.

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等离子体多孔ZIF-8/Au NPs平台：一种复合基质增强SERS基底用于微摩尔痕量检测几种分析物

表面增强拉曼散射（SERS）是有机化学和生物传感的一种有效方法。苯甲酸、苯并异噻唑啉酮和福美双是利用 SERS 光谱研究有毒物质与金属表面相互作用的常见模型化合物。金属有机框架具有高孔隙率和大表面积的特点，最近在传感应用中受到广泛关注。质子多孔结构具有高宽带电荷转移共振和可重复制造的特点，因此是很有前途的 SERS 基底。此外，等离子纳米材料对电磁场的特殊增强作用也使其成为理想的 SERS 基底材料。在本研究中，我们通过自组装过程形成了堆叠层，从而开发出了基于 ZIF-8/Au NPs 的 SERS 基底。ZIF-8/Au NPs 基底具有显著的增强拉曼散射的能力，可以超灵敏地检测微摩尔浓度的各种目标分子。这些特性使其成为生物传感应用中一种前景广阔的 SERS 基底。

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来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).