Akademik Veri Yönetim Sistemi
8th International Eurasian Conference on Biological and Chemical Sciences (EurasianBioChem 2025), Ankara, Türkiye, 17 - 19 Aralık 2025, (Özet Bildiri)
Abstract
Leaves of Corylus
maxima Mill. were collected from the Mersin district of Akçaabat (Trabzon,
Türkiye) for microwave-assisted extraction. Hazelnut is a shrub- or tree-form
plant belonging to the genus Corylus within the subfamily Coryloideae
of the family Betulaceae, and it naturally occurs in Anatolia, the
Balkans, and the Caucasus region (1,2) The collected leaves were washed several
times with water to remove dust and particulate residues, then dried under
suitable conditions to eliminate remaining moisture. A total of 20 g of dried
and ground hazelnut leaves was mixed with 400 mL of water and shaken at room
temperature for 240 minutes, followed by microwave extraction at 900 W for 2
minutes.From the obtained extract, 1 and 2 mL aliquots were taken and mixed
with an aqueous solution of 0.2 mM HAuCl₄·3H₂O.
Gold nanoparticles (AuNPs) were synthesized by subjecting these mixtures to
microwave irradiation at 90 W and 180 W for
1–30 minutes.
Reactions between hazelnut leaf extracts and solutions containing different
concentrations of Au³⁺ ions were monitored, and characteristic surface plasmon
resonance (SPR) peaks were determined using UV–Visible spectroscopy. Dynamic
light scattering (DLS) analyses provided particle size distribution,
polydispersity index (PDI), and zeta potential measurements, enabling an
assessment of stability and dispersion (3).
Keywords: Corylus maxima Mill, AuNPs, UV–Vis spectroscopy
Funding:
This research was funded by Karadeniz Technical University,Türkiye, Project No.
BAP01 (FBA-2024-15956).