中文摘要：快速采样和多组检测对农药残留分析至关重要，本文受壁虎纳米触角启发，首次提出采用仿壁虎纳米触手表面增强拉曼光谱平台通过简单直观的去皮对一个样本中的三种农药残留进行同时检测。与其他平台相比，该平台可提供优异的SERS活性（增强因子= 1.2×107）、优良的重现性（RSD＝5.8%）以及无数灵活的纳米级“触角”（类似于6.7×108/cm2）。高密度的纳米级“触角”可以自由地接近任何微区域，进行高效的目标物搜集，该项特性已经通过了扫描电镜和高效液相色谱法进行了证实。采用该平台从黄瓜、苹果和葡萄表面直接进行采样，可快速且可靠地检测到福美双、甲基对硫磷、孔雀石绿及其他多种成分。在最佳条件下，对苹果皮福美双残留的检测灵敏度为1.6 ng/cm2 (S/N = 3)，相关系数为0.99。因此，该平台在农药残留现场检测方面具有巨大的应用潜力。
外文摘要：Rapid sampling and multicomponent detection are crucial for monitoring of pesticide residues analysis. Here, a gecko-inspired nanotentacle surface-enhanced Raman spectroscopy (G-SERS) platform is proposed for the first time for the simultaneous detection of three kinds of pesticides via a simple and intuitive "press and peeled-off" approach. The G-SERS platform obtained from seeding deposition of silver nanoparticles (Ag NPs) on 3D PDMS nanotentacle array is flexible and free-standing. Compared with other substrates, this G-SERS substrate can simultaneously provide outstanding SERS activity (enhancement factor = 1.2 X 107), superior reproducibility (RSD = 5.8%) and countless flexible nanoscale "tentacles" (similar to 6.7 X 10(8)/cm(2)). Moreover, the high density of "tentacles" can freely approach the microarea and enable efficient target collection, which were confirmed by SEM and HPLC. By direct sampling from cucumber, apple, and grape surfaces, thiram (TMTD), methyl parathion (MPT), malachite green (MG), and their multiple components have been rapidly and reliably determined. For example, under the optimal conditions, a sensitivity of 1.6 ng/cm(2) (S/N = 3) for TMTD was obtained on apple peels with a coefficient (R) of 0.99. Therefore, the G-SERS substrate could offer a great practical potential for on-spot identification of various pesticide residues on real samples. 
外文关键词：SERS SUBSTRATE; PLASMONIC NANOSTRUCTURES; MONOCLONAL-ANTIBODY; GOLD NANOPARTICLES; RAPID DETECTION; AQUEOUS-MEDIA; FILTER-PAPER; SCATTERING; ADHESIVE; ARRAYS
作者：Wang, Pan; Wu, Long; Lu, Zhicheng; Li, Qin; Yin, Wenmin; Ding, Fan; Han,Heyou
作者单位：Huazhong Agr Univ, Coll Sci, Coll Food Sci & Technol, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China.
期刊名称：ANALYTICAL CHEMISTRY
期刊影响因子：5.886
出版年份：2017
出版刊次：2
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