Decoration of Cu films on the microstructural mantis wing as flexible substrates for surface enhanced Raman scattering

Decoration of Cu films on the microstructural mantis wing as flexible substrates for surface enhanced Raman scattering
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微结构螳螂翼上铜膜的装饰作为表面增强拉曼散射的柔性基底

DOI:
10.1016/j.ijleo.2018.07.003
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发表时间:
2018-11
期刊:
影响因子:
3.1
通讯作者:
Caixia Chang
Caixia Chang
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Ruifeng Li;Guochao Shi;Yuhong Wang;Mingli Wang;Yanying Zhu;Xin Sun;Haijun Xu;Caixia Chang

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表面增强拉曼散射(SERS)技术已广泛应用于有机分子的检测,将贵金属修饰的生物材料应用于表面增强拉曼散射(SERS)技术。采用磁控溅射法在螳螂翅膀表面沉积铜,制备了一种低成本、环境友好、适合大规模生产的Sers基底,用于罗丹明6 G(R6 G)、4-氨基苯硫酚(4-ATP)和结晶紫(CV)的检测。在制备过程中,通过控制Cu的溅射时间,提高了衬底的增强效果。实验表明,当溅射时间为30 min时,制备的基底具有较好的性能。在10− 3 M R6 G溶液中,以R6 G为探针分子制备的柔性Cu/MW基底的Sers性能显示出1.19 × 105的增强因子(EF)。此外,所制备的Sers基底具有高灵敏度、较强的稳定性和重现性。报告了相对较低的R6 G浓度(10− 6 M)、4-ATP浓度(10− 6 M)和CV(10− 6 M)的灵敏度。
Noble metal decorated biological materials were applied to surface-enhanced Raman scattering (SERS), which have been widely used in the detection of organic molecules. In this work, a low-cost, environment-friendly and suitable for large-scale production SERS substrate for rhodamine 6G (R6G), 4-aminothiophenol (4-ATP) and crystal violet (CV) detection has been fabricated by depositing copper (Cu) on the surface of mantis wings (MWs) by magnetron sputtering. In the process of preparation, we improved the enhancement effect of the substrate by controlling the sputtering time of Cu. Experiments showed that when the SERS substrate was prepared at the sputtering time of 30 min, the substrate exhibited excellent performance. The SERS performance of the fabricated flexible Cu/MW substrate when employed R6G as probe molecules shows an enhancement factor (EF) of 1.19 × 105over 10−3M R6G solution. Besides, the prepared SERS substrate exhibits high sensitivity, strong stability and reproducibility. Sensitivity for relatively low R6G concentration (10−6M), 4-ATP concentration (10−6M) and CV (10−6M) were reported.
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