Search results for "Nanoparticle production yield"

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Biogenic iron-silver nanoparticles inhibit bacterial biofilm formation due to Ag+ release as determined by a novel phycoerythrin-based assay

2020

Silver nanoparticles (Ag-NPs) can be considered as a cost-effective alternative to antibiotics. In the presence of Fe(III)-citrate and Ag+, Klebsiella oxytoca DSM 29614 produces biogenic Ag-NPs embedded in its peculiar exopolysaccharide (EPS). K. oxytoca DSM 29614 was cultivated in a defined growth medium–containing citrate (as sole carbon source) and supplemented with Ag+ and either low or high Fe(III) concentration. As inferred from elemental analysis, transmission and scanning electron microscopy, Fourier transform infrared spectrometry and dynamic light scattering, Ag-EPS NPs were produced in both conditions and contained also Fe. The production yield of high-Fe/Ag-EPS NPs was 12 times …

Nanoparticle production yieldNanoparticleBacterial exopolysaccharide; Biofilm formation inhibition; Biogenic bimetal nanoparticles; Nanoparticle production yield; Phycoerythrin fluorescence–based assay; Silver ion release;Biogenic bimetal nanoparticlesSettore BIO/19 - Microbiologia GeneraleApplied Microbiology and BiotechnologySilver nanoparticleNOBacterial exopolysaccharide; Biofilm formation inhibition; Biogenic bimetal nanoparticles; Nanoparticle production yield; Phycoerythrin fluorescence–based assay; Silver ion release03 medical and health scienceschemistry.chemical_compoundDynamic light scatteringBiofilm formation inhibitionPhycoerythrin fluorescence–based assay030304 developmental biology0303 health sciencesGrowth mediumbiology030306 microbiologySilver ion releaseBiofilmKlebsiella oxytocaGeneral Medicinebiology.organism_classificationFluorescenceBacterial exopolysaccharidechemistryYield (chemistry)BiotechnologyNuclear chemistry
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