Synthesis of Agglomerated Hydroxyapatite Nanospheres with Performance as Anti-Viral Material

Document Type : Original Article

Authors

1 Central Metallurgical Research and Development Institute

2 Biological Anthropology Department, Medical Division, National Research Centre, Giza, Egypt

3 Central Metallurgical Research and Development Institute (CMRDI), Helwan, Cairo, Egypt

4 Theodor Bilharz Research Institute, Giza, Egypt

5 Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87 Helwan, Cairo, Egypt

Abstract

Hydroxyapatite (HA) synthesized with the hydrothermal method was studied under various preparation conditions including variations of time, concentration of reactants, and concentration of surfactant, Aminotris (methylenephosphonic acid) [N(CH2PO3H2)3] (ATMP).  Well elongated crystals with high degree of crystallinity were synthesized at 150 oC, initial pH adjusted to 9.0 ± 0.1 with no surfactant and a high concentration of reactants. Addition of the surfactant helped in increasing particle agglomeration and formation of clusters of micron sizes. HA crystal sizes were ranged from 1.4 µm to 5.1 µm whereas the crystallite sizes ranged from 26 nm to 38 nm. The antiviral screening of the hydroxyapatite was performed against Viruses that represent a threat to the public health community due to their minimal symptomatic control such as HAV, HSV-1, Adenovirus, and MERS. The antiviral activities of the synthesized compound were evaluated In vitro by viral infectivity Plaque assay. The obtained results revealed that the synthesized Hydroxyapatite - using 0.075 M CaHPO4 concentration for 25 hours hydrothermal time with 100 ppm surfactant - exhibited antiviral effect (52.9 %) against Virus HSV-1. HAV was slightly inhibited, whereas no antiviral activity was observed with respect to Adenovirus-5, and MERS.

Keywords

Main Subjects

References

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