Laccase biosensor fabricated on flower–shaped yolk–shell SiO2 nanospheres for catechol detection

Laccase biosensor fabricated on flower–shaped yolk–shell SiO2 nanospheres for catechol detection Colloids and Surfaces A 538 (2018) 202–209 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Laccase biosensor fabricated on flower–shaped yolk–shell SiO nanospheres for catechol detection Yujie Zheng, Dandan Wang, Zhikai Li, Xuefeng Sun, Tingting Gao, Guowei Zhou Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, P.R. China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: In this study, we developed a facile one–pot strategy for fabricating flower–shaped yolk–shell SiO nanospheres Yolk–shell nanospheres (FYSSns) using cetyltrimethylammonium bromide–polyvinylpyrrolidone–cyclohexane–ethanol–water vesicle–- Flower–shaped core microemulsion composite aggregation as templates through a simple solvothermal route. FYSSns displayed Radial mesochannels yolk–shell structures with flower-shaped yolks (260–320 nm) with ordered radial mesochannels (∼7 nm), large Vesicle/microemulsion cavities (100–120 nm), and thin silica shells (20–30 nm). High laccase immobilization amounts were achieved Laccase using FYSSns as supporter, and the laccase–modified FYSSns were applied to the electrochemical sensor with Biosensor high selectivity for detecting catechol. Under the optimized conditions, the proposed sensor showed a wide linear range from 12.5–450 μM over catechol concentration and a low detection limit of 1.6 μM. The outstanding performance was attributed to the advantages of http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Geoderma Elsevier

Laccase biosensor fabricated on flower–shaped yolk–shell SiO2 nanospheres for catechol detection

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0016-7061
eISSN
1872-6259
D.O.I.
10.1016/j.colsurfa.2017.10.086
Publisher site
See Article on Publisher Site

Abstract

Colloids and Surfaces A 538 (2018) 202–209 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Laccase biosensor fabricated on flower–shaped yolk–shell SiO nanospheres for catechol detection Yujie Zheng, Dandan Wang, Zhikai Li, Xuefeng Sun, Tingting Gao, Guowei Zhou Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, P.R. China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: In this study, we developed a facile one–pot strategy for fabricating flower–shaped yolk–shell SiO nanospheres Yolk–shell nanospheres (FYSSns) using cetyltrimethylammonium bromide–polyvinylpyrrolidone–cyclohexane–ethanol–water vesicle–- Flower–shaped core microemulsion composite aggregation as templates through a simple solvothermal route. FYSSns displayed Radial mesochannels yolk–shell structures with flower-shaped yolks (260–320 nm) with ordered radial mesochannels (∼7 nm), large Vesicle/microemulsion cavities (100–120 nm), and thin silica shells (20–30 nm). High laccase immobilization amounts were achieved Laccase using FYSSns as supporter, and the laccase–modified FYSSns were applied to the electrochemical sensor with Biosensor high selectivity for detecting catechol. Under the optimized conditions, the proposed sensor showed a wide linear range from 12.5–450 μM over catechol concentration and a low detection limit of 1.6 μM. The outstanding performance was attributed to the advantages of

Journal

GeodermaElsevier

Published: Feb 15, 2019

References

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