Green synthesis of silver nanoparticles using leaf extract of Calluna vulgaris: Characterizations, properties, and photocatalytic activities

• Published in: Bioresources Vol. 19; no. 3; pp. 4396 - 4422
• Main Author: Akalin, Gulen Oytun
• Format: Journal Article
• Language: English
• Published: Raleigh North Carolina State University 01-08-2024
• Subjects: antibacterial; Antibacterial activity; antibiofilm; Antiinfectives and antibacterials; Antioxidants; Biofilms; Calluna vulgaris; characterization; Chemical synthesis; Chemicals; Cost analysis; Cost effectiveness; E coli; Flavonoids; Fourier analysis; Fourier transforms; green synthesis; Infrared analysis; Infrared spectroscopy; Leaves; Methods; Nanomaterials; Nanoparticles; Nanotechnology; Photocatalysis; photocatalytic; Phytochemicals; Plant extracts; Scanning electron microscopy; Silver; silver nanoparticles; Spectrometry; Stability; Surface plasmon resonance; X-ray diffraction; X-ray spectroscopy; Zeta potential; Turkey
• ISSN: 1930-2126; 1930-2126
• DOI: 10.15376/biores.19.3.4396-4422

Green synthesis of silver nanoparticles was carried out using leaf extract from Calluna vulgaris. The formation of nanoparticles was confirmed through the emergence of a surface plasmon resonance band in ultraviolet-visible spectroscopy. The characterization conducted using various microscopic techniques revealed that the nanoparticles mostly ranged in size from approximately 20 to 70 nm. Analysis, including Fourier transform infrared spectrometry, X-ray diffraction, and energy-dispersive X-ray spectroscopy, confirmed the chemical, crystalline structure, and presence of silver, respectively. The synthesized nanoparticles exhibited notable stability with an average zeta potential of -23.1 ± 0.6 mV. Evaluation of their antibacterial activity against Staphylococcus aureus and Escherichia coli demonstrated significant efficacy with diameters of inhibition zones measuring 10.23 ± 0.54 mm and 15.38 ± 0.32 mm, respectively. Additionally, the nanoparticles displayed a remarkable inhibition of approximately 88% against E. coli biofilm formation at a concentration of 100 μg/mL. They also exhibited unique photocatalytic performances. This research contributes to the literature in this field by producing new silver nanoparticles with cost-effectiveness, stability, antibacterial, antioxidant, antibiofilm, and photocatalytic properties, while using a previously untapped plant extract for this purpose.