Plasmon-active optical fiber functionalized by metal organic framework for pesticide detection

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43921120" target="_blank" >RIV/60461373:22310/20:43921120 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.talanta.2019.120480" target="_blank" >https://doi.org/10.1016/j.talanta.2019.120480</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.talanta.2019.120480" target="_blank" >10.1016/j.talanta.2019.120480</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Plasmon-active optical fiber functionalized by metal organic framework for pesticide detection

Popis výsledku v původním jazyce

Functional plasmonic fiber for detection and on-line monitoring of organophosphorus pesticides in water or model soil samples is described. The appearance of the plasmon absorption band was realized through the deposition of a thin gold layer on the naked core of multimode optical fiber. The metalorganic frameworks (MOF-5) layer was deposited on the gold surface for the introduction of a high affinity towards the target pesticides. The MOF-5 layer affords the extraction of pesticides and their concentration primarily in the &quot;plasmon evanescent wave&quot; space, allowing the detection by the shift of plasmon absorption band. The growth of MOF-5 layer was confirmed using the Raman, XPS and XRD measurements. The entrapping of pesticides was checked using the Raman spectroscopy and ellipsometry, which also indicate the corresponding changes of MOF-5 refractive index. The series of further experiments demonstrate the applicability of proposed fiber sensor for detection of pesticides in soil without the false signals from surrounding media. The main advantages of proposed sensor can be attributed to simplicity, high sensitivity, low cost and the absence of organic solvents for the probe treatment

Název v anglickém jazyce

Plasmon-active optical fiber functionalized by metal organic framework for pesticide detection

Popis výsledku anglicky

Functional plasmonic fiber for detection and on-line monitoring of organophosphorus pesticides in water or model soil samples is described. The appearance of the plasmon absorption band was realized through the deposition of a thin gold layer on the naked core of multimode optical fiber. The metalorganic frameworks (MOF-5) layer was deposited on the gold surface for the introduction of a high affinity towards the target pesticides. The MOF-5 layer affords the extraction of pesticides and their concentration primarily in the &quot;plasmon evanescent wave&quot; space, allowing the detection by the shift of plasmon absorption band. The growth of MOF-5 layer was confirmed using the Raman, XPS and XRD measurements. The entrapping of pesticides was checked using the Raman spectroscopy and ellipsometry, which also indicate the corresponding changes of MOF-5 refractive index. The series of further experiments demonstrate the applicability of proposed fiber sensor for detection of pesticides in soil without the false signals from surrounding media. The main advantages of proposed sensor can be attributed to simplicity, high sensitivity, low cost and the absence of organic solvents for the probe treatment

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Talanta

ISSN

0039-9140

e-ISSN

—

Svazek periodika

208

Číslo periodika v rámci svazku

FEB 1 2020

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

"120480/1"-8

Kód UT WoS článku

000503314200123

EID výsledku v databázi Scopus

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