Analysis of composite nanofibrous layers by confocal Raman microscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F14%3A33153308" target="_blank" >RIV/61989592:15310/14:33153308 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/14:10284626 RIV/00216224:14310/14:00078955 RIV/61989592:15110/14:33153308

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0032386114007241" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0032386114007241</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polymer.2014.08.032" target="_blank" >10.1016/j.polymer.2014.08.032</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of composite nanofibrous layers by confocal Raman microscopy

Popis výsledku v původním jazyce

A method for the determination of nanofibrous mats chemical composition based on Raman spectroscopy and singular value decomposition is presented. Two different composite samples - a simultaneously spun and a layer-by-layer sample - consisting of polycaprolactone and poly(ethylene) oxide were prepared by electrospinning. Using Raman mapping, we were able to determine the chemical composition in various local areas within each sample, and to distinguish and image substantial changes in the distribution of the polymers caused by various preparation parameters. The ratio between both polymers was expressed as the relative fraction of the particular chemical compound. The results were validated by the Fourier transform infrared spectroscopy. The presence of two different substances in the nanofibrous mats was also proved by scanning electron microscopy. Confocal micro-Raman spectroscopy with its chemical sensitivity and spatial resolution may be used to identify inhomogeneities in the nano

Název v anglickém jazyce

Analysis of composite nanofibrous layers by confocal Raman microscopy

Popis výsledku anglicky

A method for the determination of nanofibrous mats chemical composition based on Raman spectroscopy and singular value decomposition is presented. Two different composite samples - a simultaneously spun and a layer-by-layer sample - consisting of polycaprolactone and poly(ethylene) oxide were prepared by electrospinning. Using Raman mapping, we were able to determine the chemical composition in various local areas within each sample, and to distinguish and image substantial changes in the distribution of the polymers caused by various preparation parameters. The ratio between both polymers was expressed as the relative fraction of the particular chemical compound. The results were validated by the Fourier transform infrared spectroscopy. The presence of two different substances in the nanofibrous mats was also proved by scanning electron microscopy. Confocal micro-Raman spectroscopy with its chemical sensitivity and spatial resolution may be used to identify inhomogeneities in the nano

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Polymer

ISSN

0032-3861

e-ISSN

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Svazek periodika

55

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

5036-5042

Kód UT WoS článku

000345479400005

EID výsledku v databázi Scopus

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