Silver nanoparticles from Prosopis glandulosa and their potential application as biocontrol of Acinetobacter calcoaceticus and Bacillus cereus

Figures & data

Figure 1. Synthesis of silver nanoparticles using plant extracts of P. glandulosa.

Figure 2. UV–Vis spectra of the synthesized silver nanoparticles.

Figure 3. SEM image of silver nanoparticles from P. glandulosa.

Figure 4. EDS image of silver nanoparticles produced from P. glandulosa.

Table 1. Zeta-potential analysis of silver nanoparticles synthesized from P. glandulosa.

Average particle size	Mobility	Charge	Zeta potential	Polarity	Conductivity
421 nm	−15.63 u/s/v/cm	−0.855 fc	−200 mV	Negative	543 us/cm

Figure 5. Particle size distribution of silver nanoparticles from dynamic light scattering measurements.

Figure 6. Antibacterial activity of P. glandulosa extract and AgNPs from P.glandulosa (a) Bacillus cereus and (b) Acinetobacter calcoaceticus.

Table 2. Inhibition of microorganisms by AgNPs from P. glandulosa.

Microorganisms	Zone of inhibition (mm)
	Silver nanoparticles from P. glandulosa
	25%	50%	75%	100%
Bacillus cereus	8 ± 0.11^a	9 ± 0.24^a	10 ± 0.07^a	13 ± 0.02^a
Acinetobacter calcoaceticus	9 ± 0.31^b	9 ± 0.30^a	10 ± 0.14^a	12 ± 0.11^b

Notes: Results are expressed as mean ± standard deviation of values from triplicate experiments. Values with the same letter (a or b) within each line are equal according to the Tukey test at p ≤ 0.5.