Green Synthesis of Silver Nanoparticles Using Extracts of Ehretia cymosa and Evaluation of Its Antibacterial Activity in Cream and Ointment Drug Delivery Systems

Table 8

Minimum quantity of the test sample loaded into the cream that is required to inhibit the test microorganisms.

Test sample	Minimum inhibitory concentrations (% µg/ml)
	S. aureus		E. coli		C. albicans
	Clinical isolates	ATCC 25923	Clinical isolates	ATCC 29196	Clinical isolates	ATCC 10231
CB	2	2	2	2	2	2
ACC	0.016	0.016	0.031	0.031	0.008	0.008
MCC	0.008	0.008	0.016	0.016	0.004	0.004
ASC	0.008	0.008	0.008	0.008	0.004	0.004
MSC	0.002	0.002	0.008	0.008	0.002	0.002
Cipro	0.016	0.016	0.016	0.016	0	0
Keto	0	0	0	0	0.008	0.008

Note. ACC: aqueous crude extract cream, MCC: methanol crude extract cream, ASC: aqueous SNPs cream, MSC: methanol SNPs cream, and CC: ciprofloxacin cream (positive control).