Table 1Solution ratio with respective sample identity.

Sample code

Azadirachta indica extract (%)

Piper Betle leaf extract (%)

PVA (%)

Technique

N1 (80:20)

40

40

20

Monolayer

N2 (50:50)

25

25

50

Monolayer

PVA

0

0

100

Monolayer