Synthesis, characterization and antimicrobial study of cinnamic acid functionalized Ag nanoparticles

Figures & data

Figure 1. UV absorption spectra of CA-AgNPs solution and pure cinnamic acid solution.

Figure 2. FTIR spectra of the CA-AgNPs and pure cinnamic acid.

Figure 3. (a) Representative TEM image of the CA-AgNPs. (b) Atomic force microscopy (AFM) image of the CA-AgNPs.

Figure 4. X-ray photoelectron spectroscopy of CA-AgNPs.

Figure 5. DSC curve for the CA-AgNPs.

Figure 6. The zone of inhibition (ZOI) results of CA-AgNPs against (A) E. coli and (B) C. albicans.

Table 1. The MIC and MBC of CA-AgNPs and control samples.

μg/mL	E. coli		C. albicans
	MIC	MBC	MIC	MBC
CA-AgNPs	5.88	11.80	5.88	11.80
AgNPs by NaBH4 reduction	21.25	42.50	21.25	42.50
Cinnamalde acid	5640	11280	5640	11280
Penicillin	5.50	11.00	6.00	11.80

Figure 7. Schematic illustration of the possible antimicrobial mechanism of the CA-AgNPs.