schultz-newmethod-2019.pdf (2.19 MB)
A new method for biological synthesis of agriculturally relevant nanohydroxyapatite with elucidated effects on soil bacteria
journal contribution
posted on 2019-01-01, 00:00 authored by Ayushi Priyam, R K Das, Aaron SchultzAaron Schultz, Pushplata Singh© 2019, The Author(s). 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 of nHAP prepared by this route with 2% P source provides scope for a wide range of applications, especially as a nano-fertilizer.
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Journal
Scientific ReportsVolume
9Issue
1Article number
15083Pagination
1 - 14Publisher
Springer NatureLocation
London, ENg.Publisher DOI
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eISSN
2045-2322Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalUsage metrics
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