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Cited by 265

The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.

DNA Nanostructure-Decorated Surfaces for Enhanced Aptamer-Target Binding and Electrochemical Cocaine Sensors

Wen, Yanli, Pei, Hao, Wan, Ying, Su, Yan, Huang, Qing, Song, Shiping, Fan, Chunhai·2011·Analytical Chemistry

Abstract

The sensitivity of aptamer-based electrochemical sensors is often limited by restricted target accessibility and surface-induced perturbation of the aptamer structure, which arise from imperfect packing of probes on the heterogeneous and locally crowded surface. In this study, we have developed an ultrasensitive and highly selective electrochemical aptamer-based cocaine sensor (EACS), based on a DNA nanotechnology-based sensing platform. We have found that the electrode surface decorated with an aptamer probe-pendant tetrahedral DNA nanostructure greatly facilitates cocaine-induced fusion of the split anticocaine aptamer. This novel design leads to a sensitive cocaine sensor with a remarkably low detection limit of 33 nM. It is also important that the tetrahedra-decorated surface is protein-resistant, which not only suits the enzyme-based signal amplification scheme employed in this work, but ensures high selectivity of this sensor when deployed in sera or other adulterated samples.

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Metadata

Authors
Wen, Y., Pei, H., Wan, Y., Su, Y., Huang, Q., Song, S., & Fan, C.
Venue
Analytical Chemistry
Published
2011-08-29
Volume
83
Issue
19
Pages
7418-7423
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W2312820309
Cited by
265
References
42
FWCI
6.82
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: DNA Nanostructure-Decorated Surfaces for Enhanced Aptamer-Target Binding and Electrochemical Cocaine Sensors. https://app.cochat.ai/papers/10.1021/ac201491p
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Wen, Y., Pei, H., Wan, Y., Su, Y., Huang, Q., Song, S., & Fan, C. (2011). DNA Nanostructure-Decorated Surfaces for Enhanced Aptamer-Target Binding and Electrochemical Cocaine Sensors. Analytical Chemistry. https://doi.org/10.1021/ac201491p

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