PVP Assisted Synthesis of Hydroxyapatite Nanorods with Tunable Aspect Ratio and Bioactivity
Joint Authors
Nathanael, A. Joseph
Oh, Tae Hwan
Seo, Young Ho
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-15
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Highly crystalline and reasonably uniform hydroxyapatite (HA) nanorods were prepared by polyvinylpyrrolidone (PVP) assisted hydrothermal synthesis which produces high aspect ratio (length/width) nanorods.
The aspect ratio of the nanorods was higher in the presence of PVP and increased with increasing concentrations of PVP.
X-ray diffraction (XRD) analysis showed that the HA nanorods were of the hexagonal apatite phase.
High resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED) patterns confirmed that the nanorods grew in the c-axis direction (preferred orientation).
The calculated lattice spacing was ~0.35 nm which is the c-axis value of hexagonal HA.
Morphological variations of pristine and PVP added HA were evaluated by field emission scanning electron microscopy (FESEM) and TEM, which revealed that the presence of PVP greatly increased the aspect ratio of the HA nanorods.
The formation mechanism of the PVP assisted HA was studied and a possible reaction model was given.
Cell viability analysis by in vitro studies showed encouraging results for the high aspect ratio nanorods and indicated a possibility for tuning the activity based on controlling the aspect ratio.
American Psychological Association (APA)
Nathanael, A. Joseph& Seo, Young Ho& Oh, Tae Hwan. 2015. PVP Assisted Synthesis of Hydroxyapatite Nanorods with Tunable Aspect Ratio and Bioactivity. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1069185
Modern Language Association (MLA)
Nathanael, A. Joseph…[et al.]. PVP Assisted Synthesis of Hydroxyapatite Nanorods with Tunable Aspect Ratio and Bioactivity. Journal of Nanomaterials No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1069185
American Medical Association (AMA)
Nathanael, A. Joseph& Seo, Young Ho& Oh, Tae Hwan. PVP Assisted Synthesis of Hydroxyapatite Nanorods with Tunable Aspect Ratio and Bioactivity. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1069185
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069185