Synergistic effect of MXene and Ag NP–decorated aligned Ag NWs on SERS

IF 1.9 4区材料科学 Q3 CHEMISTRY, PHYSICAL

Surface Innovations Pub Date : 2025-02-06 DOI:10.1680/jsuin.24.00106

Zilun Tang, Qiuping Su, Dingshu Xiao, Jianyu Wu, Jianpeng Li, Hongping Liang, Xianfeng Li, Guiqiang Diao

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引用次数: 1

Abstract

In this work, MXene and Ag nanoparticle (Ag NP)–decorated aligned Ag nanowires (Ag NWs) are applied to achieve surface-enhanced Raman scattering (SERS). MXene/Ag NP–decorated aligned Ag NWs based PDMS (polydimethylsiloxane) (MAAP) substrate is fabricated following the order of oil–water–air interfacial self-assembly of aligned Ag NWs, then surface modification of Ag NPs, and drop-casting of MXene last. The synergistic effect of MXene and Ag NP–decorated Ag NWs confers the MAAP substrate with high sensitivity, universality (limit of detection of 10 −10 M for rhodamine 6G and crystal violet, 10 −9 M for malachite green), and reproducibility. Based on the existence of PDMS, the MAAP substrate exhibits a good flexibility, and it maintains a high Raman activity after stretching and bending for 100 times. In addition, the surface covering MXene prevents Ag NWs decorated by Ag NPs from oxidation, which made the MAAP substrate still have a relatively high Raman activity. The fabricated MAAP substrate enriches the family members of MXene-based SERS substrates and displays an application value in SERS on irregular surfaces.

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MXene和银np修饰的银NWs对SERS的协同效应

在这项工作中，MXene和Ag纳米粒子（Ag NP）修饰的排列银纳米线（Ag NWs）被应用于实现表面增强拉曼散射（SERS）。制备了MXene/Ag np修饰的排列银NWs基PDMS（聚二甲基硅氧烷）（MAAP）衬底，其顺序是排列银NWs的油-水-气界面自组装，然后是银NPs的表面改性，最后是MXene的滴铸。MXene和Ag np修饰的Ag NWs的协同作用使MAAP底物具有高灵敏度、普适性（罗丹明6G和结晶紫的检测限为10−10 M，孔雀石绿的检测限为10−9 M）和重复性。由于PDMS的存在，MAAP衬底具有良好的柔韧性，拉伸弯曲100次后仍保持较高的拉曼活性。此外，表面覆盖MXene可以防止被Ag NPs修饰的Ag NWs被氧化，这使得MAAP底物仍然具有较高的拉曼活性。制备的MAAP衬底丰富了mxene基SERS衬底的家族成员，在不规则表面的SERS中显示出应用价值。

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

Surface Innovations CHEMISTRY, PHYSICALMATERIALS SCIENCE, COAT-MATERIALS SCIENCE, COATINGS & FILMS

CiteScore

5.80

自引率

22.90%

发文量

期刊介绍： The material innovations on surfaces, combined with understanding and manipulation of physics and chemistry of functional surfaces and coatings, have exploded in the past decade at an incredibly rapid pace. Superhydrophobicity, superhydrophlicity, self-cleaning, self-healing, anti-fouling, anti-bacterial, etc., have become important fundamental topics of surface science research community driven by curiosity of physics, chemistry, and biology of interaction phenomenon at surfaces and their enormous potential in practical applications. Materials having controlled-functionality surfaces and coatings are important to the manufacturing of new products for environmental control, liquid manipulation, nanotechnological advances, biomedical engineering, pharmacy, biotechnology, and many others, and are part of the most promising technological innovations of the twenty-first century.