Synthesis of an Activatable Tetra-Substituted Nickel Phthalocyanines-4(3H)-quinazolinone Conjugate and Its Antibacterial Activity

Figure 7

Scanning micrograph of E. coli treated with compound 4d at a concentration of 1 mg/ml (a, b), 2 mg/ml (c), and 4 mg/ml (d). (a) is shown at lower magnification and (b)–(d) at higher magnification.

(a)

(b)

(c)

(d)