One-Step Preparation and Characterization of Zinc Phosphate Nanocrystals with Modified Surface

Wang, Jian Dong; Li, Da; Liu, Jin Ku; Yang, Xiao Hong; He, Jia Luo; Lü, Yi

doi:10.4236/snl.2011.13015

Cited by 52 publications

(44 citation statements)

References 15 publications

(15 reference statements)

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“…49, 50 The additional peak at 1650 cm −1 is due to the presence of either crystalline water or more likely, the amide I mode from bound serum proteins. 42, 43, 50, 56 These results indicate the species formed are a complex mixture of nZnO, retained proteins from fetal bovine serum (FBS) in the media and insoluble precipitate formation that is likely an amorphous mixture of zinc phosphate and carbonate species…”

Section: Resultsmentioning

confidence: 99%

Rapid Dissolution of ZnO Nanoparticles Induced by Biological Buffers Significantly Impacts Cytotoxicity

Eixenberger

Anders

Hermann

et al. 2017

Chem. Res. Toxicol.

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Zinc oxide nanoparticles (nZnO) are one of the most highly produced nanomaterials and are used in numerous applications including cosmetics and sunscreens despite reports demonstrating their cytotoxicity. Dissolution is viewed as one of the main sources of nanoparticle (NP) toxicity, however dissolution studies can be time-intensive to perform and complicated by issues such as particle separation from solution. Our work attempts to overcome some of these challenges by utilizing new methods using UV/vis and fluorescence spectroscopy to quantitatively assess nZnO dissolution in various biologically relevant solutions. All biological buffers tested induce rapid dissolution of nZnO. These buffers, including HEPES, MOPS, and PIPES, are commonly used in cell culture media, cellular imaging solutions and to maintain physiological pH. Additional studies using X-ray diffraction, FT-IR, X-ray photoelectron spectroscopy, ICP-MS and TEM were performed to understand how the inclusion of these non-essential media components impacts the behavior of nZnO in RPMI media. From these assessments, we demonstrate that HEPES causes increased dissolution kinetics, boosts the conversion of nZnO into zinc phosphate/carbonate and, interestingly, alters the structural morphology of the complex precipitates formed with nZnO in cell culture conditions. Cell viability experiments demonstrated that the inclusion of these buffers significantly decreases the viability of Jurkat leukemic cells when challenged with nZnO. This work demonstrates that biologically relevant buffering systems dramatically impact the dynamics of nZnO including dissolution kinetics, morphology, complex precipitate formation, and toxicity profiles.

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Section: Resultsmentioning

confidence: 99%

Rapid Dissolution of ZnO Nanoparticles Induced by Biological Buffers Significantly Impacts Cytotoxicity

Eixenberger

Anders

Hermann

et al. 2017

Chem. Res. Toxicol.

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“…Interestingly, residue from PA66þS400-750 obtained from tubular furnace under controlled condition shows well defined diffraction pattern. Comparison with the literature and database search [14,[53][54][55][56][57][58] reveals that it is a mixture of several species like dehydrated form of α-hopeite (Zn 3 (PO 4 ) 2 , Zn(PO 3 ) 2 and Zn 2 (P 2 O 7 ). It has been observed that polymer medium often acts as a sacrificial matrix to generate crystalline, phase pure ZnPO.…”

Section: X-ray Powder Diffraction Studies (Xrd)mentioning

confidence: 98%

Outlining the mechanism of flame retardancy in polyamide 66 blended with melamine-poly(zinc phosphate)

Naik

Fontaine

Samyn

et al. 2014

Fire Safety Journal

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“…The theoretical values are estimated based on molecular formula given in Fig. 1 and the SZM product formed according to the chemical reaction (v) [29]. The result of the elemental analysis confirms the formation of SZM compound.…”

Section: Elemental Analysis Of Sodium Zinc Molybdate Nanoparticlesmentioning

confidence: 98%

Intensification of ultrasound-assisted process for the preparation of spindle-shape sodium zinc molybdate nanoparticles

Bhanvase

Patel²,

Sonawane

et al. 2016

Ultrasonics Sonochemistry

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In the present work, sodium zinc molybdate (SZM) nanoparticles were prepared using conventional and an innovative ultrasound assisted co-precipitation of sodium molybdate, zinc oxide and HNO3 at different temperatures. Prepared product was characterized by XRD, TEM, FT-IR, particle size distribution (PSD), TGA and DTA techniques. TEM analysis shows the spindle-shaped morphology of the formed SZM nanoparticles. The average particle size of SZM nanoparticles is found to be lower in case of sonochemical method (78.3 nm) compared to conventional method (340.2 nm) which is attributed to faster solute transfer rate due to ultrasonic irradiation leading to rapid nucleation and restricted growth of SZM nanoparticles. Further, the kinetics of synthesis of SZM nanoparticles are studied using the sonochemical method at different operating temperature and conventional method at 80°C. It is shown that the rate of reaction is significantly faster at 40°C compared to other temperatures and also conventional method. This can be attributed to intense cavity collapse at lower temperature (low vapour pressure) compared to higher temperature (high vapour pressure) of the reaction mixture.

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One-Step Preparation and Characterization of Zinc Phosphate Nanocrystals with Modified Surface

Cited by 52 publications

References 15 publications

Rapid Dissolution of ZnO Nanoparticles Induced by Biological Buffers Significantly Impacts Cytotoxicity

Rapid Dissolution of ZnO Nanoparticles Induced by Biological Buffers Significantly Impacts Cytotoxicity

Outlining the mechanism of flame retardancy in polyamide 66 blended with melamine-poly(zinc phosphate)

Intensification of ultrasound-assisted process for the preparation of spindle-shape sodium zinc molybdate nanoparticles

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