Open Access
Open access
Scientific Reports, volume 9, issue 1, publication number 7659

Aptasensor for multiplex detection of antibiotics based on FRET strategy combined with aptamer/graphene oxide complex

Publication typeJournal Article
Publication date2019-05-21
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor4.6
ISSN20452322, 20452322
Multidisciplinary
Abstract
The development of a multiplexed sensing platform is necessary for highly selective, sensitive, and rapid screening of specific antibiotics. In this study, we designed a novel multiplex aptasensor for antibiotics by fluorescence resonance energy transfer (FRET) strategy using DNase I-assisted cyclic enzymatic signal amplification (CESA) method combined with aptamer/graphene oxide complex. The aptamers specific for sulfadimethoxine, kanamycin, and ampicillin were conjugated with Cyanine 3 (Cy3), 6-Carboxyfluorescein (FAM), and Cyanine 5 (Cy5), respectively, and graphene oxide (GO) was adopted to quench the fluorescence of the three different fluorophores with the efficiencies of 94.36%, 93.94%, and 96.97% for Cy3, FAM, and Cy5, respectively. CESA method was used for sensitive detection, resulting in a 2.1-fold increased signal compared to those of unamplified method. The aptasensor rapidly detected antibiotics in solution with limit of detection of 1.997, 2.664, and 2.337 ng/mL for sulfadimethoxine, kanamycin, and ampicillin, respectively. In addition, antibiotics dissolved in milk were efficiently detected with similar sensitivities. Multiplexed detection test proved that the fluorescently modified aptamers could work separately from each other. The results indicate that the aptasensor offers high specificity for each antibiotic and enables simultaneous and multicolor sensing for rapid screening of multiple antibiotics at the same time.

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Youn H. et al. Aptasensor for multiplex detection of antibiotics based on FRET strategy combined with aptamer/graphene oxide complex // Scientific Reports. 2019. Vol. 9. No. 1. 7659
GOST all authors (up to 50) Copy
Youn H., Lee K., Her J., Jeon J., Mok J., So J. I., Shin S., Ban C. Aptasensor for multiplex detection of antibiotics based on FRET strategy combined with aptamer/graphene oxide complex // Scientific Reports. 2019. Vol. 9. No. 1. 7659
RIS |
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RIS Copy
TY - JOUR
DO - 10.1038/s41598-019-44051-3
UR - https://doi.org/10.1038/s41598-019-44051-3
TI - Aptasensor for multiplex detection of antibiotics based on FRET strategy combined with aptamer/graphene oxide complex
T2 - Scientific Reports
AU - Youn, Hyungjun
AU - Lee, Kwanghyun
AU - Her, Jin
AU - Jeon, Jinseong
AU - Mok, Jihyun
AU - So, Jae In
AU - Shin, Sangeon
AU - Ban, Changill
PY - 2019
DA - 2019/05/21 00:00:00
PB - Springer Nature
IS - 1
VL - 9
SN - 2045-2322
SN - 2045-2322
ER -
BibTex
Cite this
BibTex Copy
@article{2019_Youn,
author = {Hyungjun Youn and Kwanghyun Lee and Jin Her and Jinseong Jeon and Jihyun Mok and Jae In So and Sangeon Shin and Changill Ban},
title = {Aptasensor for multiplex detection of antibiotics based on FRET strategy combined with aptamer/graphene oxide complex},
journal = {Scientific Reports},
year = {2019},
volume = {9},
publisher = {Springer Nature},
month = {may},
url = {https://doi.org/10.1038/s41598-019-44051-3},
number = {1},
doi = {10.1038/s41598-019-44051-3}
}
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