UNASSIGNED: @entity692 (HA)-coated @entity3703 nanoparticles (MNPs) are being widely investigated for various applications in medical engineering and wastewater treatment. In this work, the MNPs were thoroughly coated by bacterial synthesized HA nanoparticles during biomineralization process using @entity9238 . The resulting bacterial-induced precipitate was then calcined at 600  C and investigated with respect to structural characteristics, particle size and magnetic strength by XRD, FT-IR, SEM, @entity15354 , TEM and VSM analyses. The effects of MNPs and HA-coated MNPs (HA-MNPs) on the viability of @entity1 MCF-7 cell lines were also investigated via mitochondrial activity test (MTT) and @entity880 dehydrogenase (LDH) assays. The powder characterization results showed appropriate structural properties for HA-MNPs samples. The particles diameter size of the MNPs and HA-MNPs were in the range of 3-25nm and 20-80nm, respectively. The biologically-synthesized HA-MNPs formed a stable suspension in water while keeping their magnetic property. The saturation magnetization (Ms) of HA-MNPs was measured at ~10emug(-1) which was in good agreement with the structural composition of this sample. Finally, the results of the cell lines viability indicated that coating of toxic MNPs via biomineralization was a promising approach in order to synthesize bio-compatible magnetic nanoparticles with suitable physical and chemical structural characteristics. The @entity137 level of MNPs was reduced by 10 fold when coated by bacterial-synthesized HA.

A biological method for in-situ synthesis of @entity692 -coated XXXX nanoparticles using @entity9238 : Characterization and acute @entity137 assessments.

@entity1 :: ('9606', 'Species') :: ['human'] @entity15354 :: ('MESH:C536194', 'Disease') :: ['EDS'] @entity137 :: ('MESH:D064420', 'Disease') :: ['toxicity'] @entity9238 :: ('548', 'Species') :: ['Enterobacter aerogenes'] @entity3703 :: ('MESH:D052203', 'Chemical') :: ['magnetite'] @entity692 :: ('MESH:D017886', 'Chemical') :: ['Hydroxyapatite'] @entity880 :: ('MESH:D019344', 'Chemical') :: ['lactate']
@entity3703 :: (MESH:D052203,Chemical) :: ['magnetite']
