Cargando…

New Proposal for Size and Size-Distribution Evaluation of Nanoparticles Synthesized via Ultrasonic Spray Pyrolysis Using Search Algorithm Based on Image-Processing Technique

Nanoparticle properties are correlated to their size, size distribution, and shape; it is essential to accurately measure these features in the field of nanoscience. In this study, silver nanoparticles (AgNPs) were synthesized with the ultrasonic-spray-pyrolysis (USP) method from a water solution of...

Descripción completa

Detalles Bibliográficos
Autores principales: Emil Kaya, Elif, Kaya, Ozan, Alkan, Gözde, Gürmen, Sebahattin, Stopic, Srecko, Friedrich, Bernd
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981409/
https://www.ncbi.nlm.nih.gov/pubmed/31861774
http://dx.doi.org/10.3390/ma13010038
_version_ 1783491073246494720
author Emil Kaya, Elif
Kaya, Ozan
Alkan, Gözde
Gürmen, Sebahattin
Stopic, Srecko
Friedrich, Bernd
author_facet Emil Kaya, Elif
Kaya, Ozan
Alkan, Gözde
Gürmen, Sebahattin
Stopic, Srecko
Friedrich, Bernd
author_sort Emil Kaya, Elif
collection PubMed
description Nanoparticle properties are correlated to their size, size distribution, and shape; it is essential to accurately measure these features in the field of nanoscience. In this study, silver nanoparticles (AgNPs) were synthesized with the ultrasonic-spray-pyrolysis (USP) method from a water solution of silver nitrate. The synthesized AgNPs were characterized by Dynamic Light Scattering (DLS) analysis and Scanning Electron Microscopy (SEM) to reveal their size and size distribution. A search algorithm based on an image-processing technique to obtain particle size and particle-size distribution from SEM micrographs is proposed. In order to obtain more quantitative information and data with respect to the morphology of particles synthesized under different process parameters, SEM micrographs with a nonhomogeneous background contrast were examined via image-processing techniques in MATLAB. Due to the inhomogeneous contrast of SEM micrographs, defining an overall threshold value was insufficient in the detection of whole nanoparticles. Thus, subimages were directly created according to the maximum and minimum particle size specified by the user to determine local threshold values. The obtained results were automatically combined to represent both particle dimension and location in the SEM micrographs. We confirmed that the results of our DLS analysis, theoretical calculation, and image-processing technique were correlated with our expected results.
format Online
Article
Text
id pubmed-6981409
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-69814092020-02-07 New Proposal for Size and Size-Distribution Evaluation of Nanoparticles Synthesized via Ultrasonic Spray Pyrolysis Using Search Algorithm Based on Image-Processing Technique Emil Kaya, Elif Kaya, Ozan Alkan, Gözde Gürmen, Sebahattin Stopic, Srecko Friedrich, Bernd Materials (Basel) Article Nanoparticle properties are correlated to their size, size distribution, and shape; it is essential to accurately measure these features in the field of nanoscience. In this study, silver nanoparticles (AgNPs) were synthesized with the ultrasonic-spray-pyrolysis (USP) method from a water solution of silver nitrate. The synthesized AgNPs were characterized by Dynamic Light Scattering (DLS) analysis and Scanning Electron Microscopy (SEM) to reveal their size and size distribution. A search algorithm based on an image-processing technique to obtain particle size and particle-size distribution from SEM micrographs is proposed. In order to obtain more quantitative information and data with respect to the morphology of particles synthesized under different process parameters, SEM micrographs with a nonhomogeneous background contrast were examined via image-processing techniques in MATLAB. Due to the inhomogeneous contrast of SEM micrographs, defining an overall threshold value was insufficient in the detection of whole nanoparticles. Thus, subimages were directly created according to the maximum and minimum particle size specified by the user to determine local threshold values. The obtained results were automatically combined to represent both particle dimension and location in the SEM micrographs. We confirmed that the results of our DLS analysis, theoretical calculation, and image-processing technique were correlated with our expected results. MDPI 2019-12-20 /pmc/articles/PMC6981409/ /pubmed/31861774 http://dx.doi.org/10.3390/ma13010038 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Emil Kaya, Elif
Kaya, Ozan
Alkan, Gözde
Gürmen, Sebahattin
Stopic, Srecko
Friedrich, Bernd
New Proposal for Size and Size-Distribution Evaluation of Nanoparticles Synthesized via Ultrasonic Spray Pyrolysis Using Search Algorithm Based on Image-Processing Technique
title New Proposal for Size and Size-Distribution Evaluation of Nanoparticles Synthesized via Ultrasonic Spray Pyrolysis Using Search Algorithm Based on Image-Processing Technique
title_full New Proposal for Size and Size-Distribution Evaluation of Nanoparticles Synthesized via Ultrasonic Spray Pyrolysis Using Search Algorithm Based on Image-Processing Technique
title_fullStr New Proposal for Size and Size-Distribution Evaluation of Nanoparticles Synthesized via Ultrasonic Spray Pyrolysis Using Search Algorithm Based on Image-Processing Technique
title_full_unstemmed New Proposal for Size and Size-Distribution Evaluation of Nanoparticles Synthesized via Ultrasonic Spray Pyrolysis Using Search Algorithm Based on Image-Processing Technique
title_short New Proposal for Size and Size-Distribution Evaluation of Nanoparticles Synthesized via Ultrasonic Spray Pyrolysis Using Search Algorithm Based on Image-Processing Technique
title_sort new proposal for size and size-distribution evaluation of nanoparticles synthesized via ultrasonic spray pyrolysis using search algorithm based on image-processing technique
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981409/
https://www.ncbi.nlm.nih.gov/pubmed/31861774
http://dx.doi.org/10.3390/ma13010038
work_keys_str_mv AT emilkayaelif newproposalforsizeandsizedistributionevaluationofnanoparticlessynthesizedviaultrasonicspraypyrolysisusingsearchalgorithmbasedonimageprocessingtechnique
AT kayaozan newproposalforsizeandsizedistributionevaluationofnanoparticlessynthesizedviaultrasonicspraypyrolysisusingsearchalgorithmbasedonimageprocessingtechnique
AT alkangozde newproposalforsizeandsizedistributionevaluationofnanoparticlessynthesizedviaultrasonicspraypyrolysisusingsearchalgorithmbasedonimageprocessingtechnique
AT gurmensebahattin newproposalforsizeandsizedistributionevaluationofnanoparticlessynthesizedviaultrasonicspraypyrolysisusingsearchalgorithmbasedonimageprocessingtechnique
AT stopicsrecko newproposalforsizeandsizedistributionevaluationofnanoparticlessynthesizedviaultrasonicspraypyrolysisusingsearchalgorithmbasedonimageprocessingtechnique
AT friedrichbernd newproposalforsizeandsizedistributionevaluationofnanoparticlessynthesizedviaultrasonicspraypyrolysisusingsearchalgorithmbasedonimageprocessingtechnique