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Small. 2019 May;15(19):e1804527. doi: 10.1002/smll.201804527. Epub 2019 Apr 8.

Tape-Imprinted Hierarchical Lotus Seedpod-Like Arrays for Extraordinary Surface-Enhanced Raman Spectroscopy.

Author information

1
Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, P. R. China.
2
National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China.

Abstract

A novel two-side-activatable high-performance surface-enhanced Raman spectroscopy (SERS) substrate is developed based on the tape-imprinting method. It features 3D full-space-distributed hot spots originating from the hierarchical lotus seedpod-like silver arrays, which offer ultrasensitive, uniform, reproducible, and reliable quantitative measurements with an inherent internal standard. This excellent SERS substrate also holds great promise in practical in situ molecule detection on curved surfaces, such as pesticides on fruit, which is not yet possible with the traditional rigid or flexible material-based SERS counterparts.

KEYWORDS:

SERS; colloidal lithography; flexible; heterogeneous; imprinting

PMID:
30957406
DOI:
10.1002/smll.201804527

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