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author:

Lin, B. (Lin, B..) [1] | Chen, J. (Chen, J..) [2] | Kannan, P. (Kannan, P..) [3] | Zeng, Y. (Zeng, Y..) [4] | Qiu, B. (Qiu, B..) [5] | Guo, L. (Guo, L..) [6] | Lin, Z. (Lin, Z..) [7]

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Scopus

Abstract:

A rapid method is described for the preparation of a highly uniform and sensitive SERS substrate by an improved ‘drop-and-dry’ method. Gold nanobipyramids (Au NBPs) were prepared inside the nanoholes (nanowalls) of anodic aluminum oxide (AAO) templates with a typically 5-μm nanohole depth. The SERS substrate can be prepared by this method within 40 s and on large scale. The SERS signals obtained with this Au NBPs-AAO substrate is stronger by four-orders of magnitude compared to conventional a silicon wafer substrate. The SERS signal for dopamine (DA; measured at 1311 cm −1 ) is found to be enhanced by a factor of 2.2 × 10 8 . The response to DA extends from 10 nM to 0.1 mM, and the limit of detection is 6.5 nM (at S/N = 3). The assay was applied to the determination of DA in spiked human serum. [Figure not available: see fulltext.]. © 2019, Springer-Verlag GmbH Austria, part of Springer Nature.

Keyword:

Gold nanobipyramids; Improved ‘drop-and-dry’ method; On-spot detection; Surface enhanced Raman spectroscopy; Uniform SERS substrate

Community:

  • [ 1 ] [Lin, B.]Institute of Nanomedicine and Nanobiosensing, MOE Key laboratory for analytical science of food safety and biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
  • [ 2 ] [Chen, J.]Institute of Nanomedicine and Nanobiosensing, MOE Key laboratory for analytical science of food safety and biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
  • [ 3 ] [Kannan, P.]College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China
  • [ 4 ] [Zeng, Y.]College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China
  • [ 5 ] [Qiu, B.]Institute of Nanomedicine and Nanobiosensing, MOE Key laboratory for analytical science of food safety and biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
  • [ 6 ] [Guo, L.]Institute of Nanomedicine and Nanobiosensing, MOE Key laboratory for analytical science of food safety and biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
  • [ 7 ] [Guo, L.]College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China
  • [ 8 ] [Lin, Z.]Institute of Nanomedicine and Nanobiosensing, MOE Key laboratory for analytical science of food safety and biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, China

Reprint 's Address:

  • [Guo, L.]College of Biological, Chemical Sciences and Engineering, Jiaxing UniversityChina

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Source :

Microchimica Acta

ISSN: 0026-3672

Year: 2019

Issue: 4

Volume: 186

6 . 2 3 2

JCR@2019

5 . 4 0 0

JCR@2023

ESI HC Threshold:184

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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