Physicochemical properties of surface charge-modified ZnO nanoparticles with different particle sizes

Kyoung-Min Kim,1 Mun-Hyoung Choi,2 Jong-Kwon Lee,3 Jayoung Jeong,3 Yu-Ri Kim,4 Meyoung-Kon Kim,4 Seung-Min Paek,2 Jae-Min Oh1 1Department of Chemistry and Medical Chemistry, College of Science and Technology, Yonsei University, Gangwon-do, 2Department of Chemistry, Kyungpook National University, Ta...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Kim KM, Choi MH, Lee JK, Jeong J, Kim YR, Kim MK, Paek SM, Oh JM
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2014
Materias:	Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/fc9e18d267f648d6a8f02eb074405f5f
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:fc9e18d267f648d6a8f02eb074405f5f
record_format	dspace
spelling	oai:doaj.org-article:fc9e18d267f648d6a8f02eb074405f5f2021-12-02T08:07:45ZPhysicochemical properties of surface charge-modified ZnO nanoparticles with different particle sizes1178-2013https://doaj.org/article/fc9e18d267f648d6a8f02eb074405f5f2014-12-01T00:00:00Zhttp://www.dovepress.com/physicochemical-properties-of-surface-charge-modified-zno-nanoparticle-peer-reviewed-article-IJNhttps://doaj.org/toc/1178-2013 Kyoung-Min Kim,1 Mun-Hyoung Choi,2 Jong-Kwon Lee,3 Jayoung Jeong,3 Yu-Ri Kim,4 Meyoung-Kon Kim,4 Seung-Min Paek,2 Jae-Min Oh1 1Department of Chemistry and Medical Chemistry, College of Science and Technology, Yonsei University, Gangwon-do, 2Department of Chemistry, Kyungpook National University, Taegu, 3Toxicological Research Division, National Institute of Food and Drug Safety Evaluation, Chungchungbuk-do, 4Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, South Korea Abstract: In this study, four types of standardized ZnO nanoparticles were prepared for assessment of their potential biological risk. Powder-phased ZnO nanoparticles with different particle sizes (20 nm and 100 nm) were coated with citrate or L-serine to induce a negative or positive surface charge, respectively. The four types of coated ZnO nanoparticles were subjected to physicochemical evaluation according to the guidelines published by the Organisation for Economic Cooperation and Development. All four samples had a well crystallized Wurtzite phase, with particle sizes of ~30 nm and ~70 nm after coating with organic molecules. The coating agents were determined to have attached to the ZnO surfaces through either electrostatic interaction or partial coordination bonding. Electrokinetic measurements showed that the surface charges of the ZnO nanoparticles were successfully modified to be negative (about −40 mV) or positive (about +25 mV). Although all the four types of ZnO nanoparticles showed some agglomeration when suspended in water according to dynamic light scattering analysis, they had clearly distinguishable particle size and surface charge parameters and well defined physicochemical properties. Keywords: ZnO nanoparticles, surface coating, surface charge, particle size, physicochemical propertiesKim KMChoi MHLee JKJeong JKim YRKim MKPaek SMOh JMDove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2014, Iss Supplement 2, Pp 41-56 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine (General) R5-920
spellingShingle	Medicine (General) R5-920 Kim KM Choi MH Lee JK Jeong J Kim YR Kim MK Paek SM Oh JM Physicochemical properties of surface charge-modified ZnO nanoparticles with different particle sizes
description	Kyoung-Min Kim,1 Mun-Hyoung Choi,2 Jong-Kwon Lee,3 Jayoung Jeong,3 Yu-Ri Kim,4 Meyoung-Kon Kim,4 Seung-Min Paek,2 Jae-Min Oh1 1Department of Chemistry and Medical Chemistry, College of Science and Technology, Yonsei University, Gangwon-do, 2Department of Chemistry, Kyungpook National University, Taegu, 3Toxicological Research Division, National Institute of Food and Drug Safety Evaluation, Chungchungbuk-do, 4Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, South Korea Abstract: In this study, four types of standardized ZnO nanoparticles were prepared for assessment of their potential biological risk. Powder-phased ZnO nanoparticles with different particle sizes (20 nm and 100 nm) were coated with citrate or L-serine to induce a negative or positive surface charge, respectively. The four types of coated ZnO nanoparticles were subjected to physicochemical evaluation according to the guidelines published by the Organisation for Economic Cooperation and Development. All four samples had a well crystallized Wurtzite phase, with particle sizes of ~30 nm and ~70 nm after coating with organic molecules. The coating agents were determined to have attached to the ZnO surfaces through either electrostatic interaction or partial coordination bonding. Electrokinetic measurements showed that the surface charges of the ZnO nanoparticles were successfully modified to be negative (about −40 mV) or positive (about +25 mV). Although all the four types of ZnO nanoparticles showed some agglomeration when suspended in water according to dynamic light scattering analysis, they had clearly distinguishable particle size and surface charge parameters and well defined physicochemical properties. Keywords: ZnO nanoparticles, surface coating, surface charge, particle size, physicochemical properties
format	article
author	Kim KM Choi MH Lee JK Jeong J Kim YR Kim MK Paek SM Oh JM
author_facet	Kim KM Choi MH Lee JK Jeong J Kim YR Kim MK Paek SM Oh JM
author_sort	Kim KM
title	Physicochemical properties of surface charge-modified ZnO nanoparticles with different particle sizes
title_short	Physicochemical properties of surface charge-modified ZnO nanoparticles with different particle sizes
title_full	Physicochemical properties of surface charge-modified ZnO nanoparticles with different particle sizes
title_fullStr	Physicochemical properties of surface charge-modified ZnO nanoparticles with different particle sizes
title_full_unstemmed	Physicochemical properties of surface charge-modified ZnO nanoparticles with different particle sizes
title_sort	physicochemical properties of surface charge-modified zno nanoparticles with different particle sizes
publisher	Dove Medical Press
publishDate	2014
url	https://doaj.org/article/fc9e18d267f648d6a8f02eb074405f5f
work_keys_str_mv	AT kimkm physicochemicalpropertiesofsurfacechargemodifiedznonanoparticleswithdifferentparticlesizes AT choimh physicochemicalpropertiesofsurfacechargemodifiedznonanoparticleswithdifferentparticlesizes AT leejk physicochemicalpropertiesofsurfacechargemodifiedznonanoparticleswithdifferentparticlesizes AT jeongj physicochemicalpropertiesofsurfacechargemodifiedznonanoparticleswithdifferentparticlesizes AT kimyr physicochemicalpropertiesofsurfacechargemodifiedznonanoparticleswithdifferentparticlesizes AT kimmk physicochemicalpropertiesofsurfacechargemodifiedznonanoparticleswithdifferentparticlesizes AT paeksm physicochemicalpropertiesofsurfacechargemodifiedznonanoparticleswithdifferentparticlesizes AT ohjm physicochemicalpropertiesofsurfacechargemodifiedznonanoparticleswithdifferentparticlesizes
_version_	1718398701949419520

Physicochemical properties of surface charge-modified ZnO nanoparticles with different particle sizes

Ejemplares similares