In-situ preparation of hydroxyapatite nanorod embedded poly (vinyl alcohol) composite and its characterization
نویسندگان
چکیده
Hydroxyapatite (HAp) nanorod embedded composite was prepared using poly (vinyl alcohol) (PVA) as a matrix with different weight percentages (wt. %) The role of PVA composition on the crystallite size, degree of crystallinity, functional groups and morphology of nanocomposites were characterised by XRD, FTIR, and TEM analysis. The results indicated that the size and crystallinity of HAp nano particles decreases with increase in PVA concentration in the composite. This shows the size control effect of PVA concentration on HAp nanorods. Due to the chemical bond interactions between HAp and PVA, a new peak at 2944 cm was observed from FTIR analysis. TEM micrograph confirms the presence of HAp nanorod crystals in PVA matrix. From microhardness test, a notable increase in hardness of the composite for 1.25 and 2.5 wt. % of PVA concentration when compared to pure HAp. The bioresorbability was explored through in vitro study.
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