NDLI: Physiochemical properties and bioapplication of nano- and microsized hydroxy zinc phosphate particles modulated by reaction temperature

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Journal of Materials Chemistry B Vol - 3 Issue - 6

Journal of Materials Chemistry B Vol - 3 Issue - 5

Journal of Materials Chemistry B Vol -2

Journal of Materials Chemistry B Vol -1

Physiochemical properties and bioapplication of nano- and microsized hydroxy zinc phosphate particles modulated by reaction temperature

Content Provider	Royal Society of Chemistry (RSC)
Author	Tong, Gangsheng Zhu, Xinyuan Liu, Peng Yuan, Xiaoya Su, Yue Zhu, Bangshang
Copyright Year	2015
Abstract	We investigated the effect of reaction temperature on the particle size and morphology of hydroxy zinc phosphate particles (HZnPPs). The influence of differences in shape on the physiochemical properties of HZnPPs and the possible bioapplications of these particles were also investigated. HZnPPs with both hollow and solid nanospheres and microsized rectangular sheet-like particles were successfully prepared by a wet chemical method using Zn (NO3)2·6H2O and (NH4)2HPO4 as the reactants and ammonia to adjust the pH. The synthesis was performed at temperatures ranging from 0 to 95 °C. The particle size, morphology, crystal structure and thermal properties were analysed by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, the Brunauer–Emmett–Teller specific surface area, thermogravimetric analysis and dynamic light scatting. The chemical composition and vibrational spectra were measured using inductively coupled plasma atomic emission spectrometry, Fourier transform infrared spectrometry and Raman spectrometry. The transmission electron microscopy results showed that a hollow spherical structure with a pore size of 20–30 nm was obtained at reaction temperatures <25 °C. With increasing temperature, the nanoparticles changed from hollow to solid spheres of a similar size. Microsized rectangular sheet-like particles were formed when the reaction temperature was >60 °C. The effect of HZnPPs on cell viability in vitro was evaluated by the MTT assay against normal NIH/3T3 cells. The hollow and solid nanospheres had a lower cell cytotoxicity than the microsized sheet-like particles. Both the nanospheres and the rectangular sheet-like particles were able to adsorb heavy metal ions. The hollow nanospheres were also used as a carrier for a high drug-loading of epirubicin. These results clearly show that temperature plays an important part in regulating the nanoscale hierarchical structure of HZnPPs and their properties.
Starting Page	1301
Ending Page	1312
Page Count	12
File Format	HTM / HTML PDF
ISSN	2050750X
Volume Number	3
Issue Number	7
Journal	Journal of Materials Chemistry B
DOI	10.1039/c4tb01049c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	MTT Fourier Raman Emmett Zinc phosphate Ammonia PH X-ray scattering techniques Scanning electron microscope Transmission electron microscopy Specific surface area Thermogravimetric analysis Inductively coupled plasma Fourier transform Infrared spectroscopy MTT assay National Institutes of Health Cytotoxicity Heavy metals Epirubicin
Content Type	Text
Resource Type	Article
Subject	Chemistry Medicine Materials Science Biomedical Engineering

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