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Hydraulically pressed silver nanowire-cotton fibers as an active platform for filtering and surface-enhanced Raman scattering detection of bacteria from fluid

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Date
2019
Author(s)
Ankudze, Bright
Asare, Bismark
Goffart, Steffi
Koistinen, Arto
Nuutinen, Tarmo
Matikainen, Antti
Andoh, Sampson Saj
Roussey, Matthieu;, Pakkanen, Tuula. T
Unique identifier
10.1016/j.apsusc.2019.02.067
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Self-archived article

Citation
Ankudze, Bright. Asare, Bismark. Goffart, Steffi. Koistinen, Arto. Nuutinen, Tarmo. Matikainen, Antti. Andoh, Sampson Saj. Roussey, Matthieu;, Pakkanen, Tuula. T. (2019). Hydraulically pressed silver nanowire-cotton fibers as an active platform for filtering and surface-enhanced Raman scattering detection of bacteria from fluid.  Applied surface science, 479, 663-668. 10.1016/j.apsusc.2019.02.067.
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© Elsevier B.V.
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CC BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/
Abstract

Silver and gold nanoparticles-decorated cotton fiber substrates constitute an important group of the simple, inexpensive and versatile platforms for a SERS-based detection of biomolecules. However, the fibrous cotton embedded with metal nanoparticles is yet to be explored as a filter-like substrate for isolation and detection of pathogens from fluid. In this study, we present a straightforward approach based on hydraulic pressing to make a silver nanowire-decorated cotton fibers substrate a realistic platform for effective filtering and detection of bacteria from urine. Silver nanowires were anchored on cotton fibers using an aminopropyltrimethoxysilane as a linker. The obtained silver nanowire-cotton fiber material was compressed with a hydraulic press to substantially reduce the free spaces between the individual fibers. As a proof-of-concept, the prepared substrate was employed to effectively filter Escherichia coli bacteria from phosphate-buffered saline solution and urine. The silver nanowire-cotton SERS substrate thus serves as a low-cost and active platform for an effective detection of bacteria from fluids.

Subjects
surface-enhanced Raman scattering   cotton   silver nanowire   Escherichia coli   bacteria   
URI
https://erepo.uef.fi/handle/123456789/7550
Link to the original item
http://dx.doi.org/10.1016/j.apsusc.2019.02.067
Publisher
Elsevier BV
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  • Luonnontieteiden ja metsätieteiden tiedekunta [1123]
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