ficus religiosa

Cause

Silver nanoparticles synthesized from Ficus religiosa leaf extract exhibit potent antimicrobial activity through multiple mechanisms: disruption of bacterial cell membranes, inhibition of respiratory chain enzymes, and suppression of fungal spore germination. The 83.8 nm spherical nanoparticles with -19.9 mV zeta potential demonstrate enhanced surface area-to-volume ratio for maximum microbial interaction.

Solutions

• Against Gram-negative bacteria (E. coli): Apply AgNPs at 25 μL concentration to achieve 1.9 cm zone of inhibition; higher concentrations increase antimicrobial efficacy
• Against Gram-positive bacteria (S. aureus): Apply AgNPs at 25 μL concentration to achieve 2.0 cm zone of inhibition; streptomycin-equivalent antibacterial activity demonstrated
• Against fungal pathogens (Aspergillus niger): Apply AgNPs at 50 μL concentration to achieve 2.6 cm zone of inhibition compared to 1.5 cm for untreated leaf extract alone
• Use agar well diffusion method for testing: Spread 0.5 mL bacterial culture on nutrient agar, punch 4 wells with borer, add 10-50 μL AgNP concentrations, incubate at 37°C for bacteria or 25°C for fungi for 4-5 days
• For field application: Prepare nanosuspension at 0.1 mM concentration, apply as foliar spray or soil drench at 25-200 μL per plant depending on size and infection severity

Cause

Ficus religiosa leaf phytochemicals including phenols, tannins, flavonoids, alkaloids, steroids, and lanosterol demonstrate significant bioactive properties including antioxidant activity (83.7% hydrogen peroxide scavenging, 90.7% DPPH radical scavenging at 2 mL concentration) and antiviral efficacy against Sesbania mosaic virus (SeMV). The medicinal properties enable applications in treating asthma, diabetes, gastric disorders, neurological conditions (Parkinson's, Huntington's), and inflammatory diseases.

Solutions

• For antioxidant applications: Prepare Ficus religiosa leaf extract at standard concentration (50 mg/mL), demonstrates 83.7% hydrogen peroxide scavenging activity compared to 92.7% for ascorbic acid standard
• For DPPH radical scavenging: Apply 2 mL AgNP concentration to achieve 90.7% free radical scavenging activity, comparable to 100% ascorbic acid standard
• For antiviral treatment against SeMV: Apply 200 μL AgNPs incubated for 120 minutes with virus sap - plants remain healthy and erect with minimal symptoms compared to untreated controls showing stunted growth, leaf drying, and mosaic patterns within 5 days
• For low-concentration antiviral (25 μL): Incubate with virus for 30-120 minutes; longer incubation times (120 min) result in healthier plants with only slight basal leaf yellowing versus severe symptoms at 30 min
• For medicinal extract preparation: Use water-soluble phytochemicals from leaf extracts which act as both reducing agents for nanoparticle synthesis and bioactive compounds for therapeutic applications

Cause

Ficus religiosa (Peepal) leaves contain water-soluble phytochemicals including phenols, tannins, steroids, alkaloids, flavonoids, and lanosterol that function as effective reducing and capping agents for silver nanoparticle (AgNP) synthesis. When 0.1 mM AgNO₃ is added to the leaf extract and incubated at room temperature, the bio-reduction process converts silver ions to metallic silver nanoparticles, evidenced by a color change from green to dark brown within minutes.

Solutions

• Prepare leaf extract: Wash 5g fresh Ficus religiosa leaves with distilled water, macerate with distilled water using mortar and pestle, filter through muslin cloth, adjust to 100 mL total volume
• Synthesize AgNPs: Add 0.1 mM AgNO₃ solution to leaf extract at 1:10 ratio, incubate at room temperature until color changes from green to dark brown indicating nanoparticle formation
• Characterize using UV-Visible spectroscopy: Confirm Surface Plasmon Resonance peak at 422 nm indicating successful AgNP synthesis
• Analyze with FTIR spectroscopy: Identify biomolecule functional groups - O-H stretch (3435 cm⁻¹), C-H stretching (2953, 2853 cm⁻¹), C=C stretching (1644 cm⁻¹), C-O phenols (1219 cm⁻¹) - confirming phytochemical capping
• Verify with SEM imaging: Confirm spherical morphology with particle size 50-100 nm and polydisperse distribution without conglomeration