A new method for biological synthesis of agriculturally relevant nanohydroxyapatite with elucidated effects on soil bacteria.

ABSTRACT: The study describes a novel and environment friendly route of biosynthesis of nanohydroxyapatite (nHAP). Bacillus licheniformis mediated synthesis of nHAP has been carried out with different phosphate concentrations (2%, 5%, 10% and 20% w/v) of potassium dihydrogen orthophosphate monobasic (K₂HPO₄). The synthesis is supported by a two-step mechanism - (i) solubilization of P by organic acids extracellularly secreted by the bacterial strain and (ii) gelation of P and Ca. The nHAP particles were characterized using electron microscopy and XRD analysis. Powdered crystalline particles with a size range of 30 ± 5 nm were obtained with shape and size dependent on phosphate concentrations. The particles showed no adverse effect on plant growth-promoting bacteria. Evaluation

SUBMITTER: Priyam A 

PROVIDER: S-EPMC6803707 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature