Related Experiment Video
Updated: Feb 23, 2026

Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection
Published on: February 16, 2020
Silver nanoparticles-based green fluorescent probe for determination of Bosentan in pharmaceutical formulation and
Yossra A Trabik1, Rehem A Ismail2, Miriam F Ayad2
1Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo, 11566, Egypt. ytrabik@pharma.asu.edu.eg.
Abstract:
In this work, a new, sensitive, precise, accurate, and eco-friendly spectrofluorometric method for the detection of Bosentan in human plasma and pharmaceutical dosage form was developed, using silver nanoparticles (AgNPs) as an efficient fluorescence sensing probe. The general concept used in this approach is based on collisional quenching of AgNPs fluorescence intensity. Over the concentration range of 0.02 to 0.12 µg/mL, the quenching impact of BOS on AgNPs increased as its concentration increased. The suggested method's greenness was assessed using two metric systems: the Analytical Eco-scale (AES) with a score of 80 and the AGREE greenness assessment tool with a score of 0.68.

