Tecnai g2 f20 supertwin

All fluorescence measurements were performed on a Perkin-Elmer Model LS 55 B spectrofluorimeter (PerkinElmer, USA), equipped with a xenon lamp, using emission and excitation band passes of 10 and 10 nm and a scan rate of 300 nm min -1 . UV-vis absorption spectra were recorded using a Model Scinco UV S-2100. The pH values of the solutions were adjusted employing a Metrohm pH meter Model 632. HRTEM analysis was carried out using a 200 kV FEI Tecnai G2 F20 Super Twin transmission electron microscope. Brookhaven instruments at 25°C and ZetaPlus Particle Sizing Software Version 5.23, were used for dynamic light scattering (DLS) submicrometer particle size analysis.
All chemicals such as D-glucose, D-maltose, D-galactose, D-fructose, silver nitrate (AgNO 3 ), sodium hydroxide (NaOH), hydrochloric acid (HCl), BSA (≥ 98.0%) and so on, were of analytical grade and were procured from Merck and Sigma-Aldrich companies. The appreciated solutions were produced by double distilled water (DDW). Different varieties of juices (orange and lemon verbena (Aloysia citrodora)) and human plasma samples were obtained from local store and a clinical laboratory respectively.