Biocomposite Materials Derived from Andropogon halepensis: Eco-Design and Biophysical Evaluation

Abstract

This research work presents a “green” strategy of weed valorization for developing silver nanoparticles (AgNPs) with promising interesting applications. Two types of AgNPs were phyto-synthesized using an aqueous leaf extract of the weed Andropogon halepensis L. Phyto-manufacturing of AgNPs was achieved by two bio-reactions, in which the volume ratio of (phyto-extract)/(silver salt solution) was varied. The size and physical stability of Andropogon—AgNPs were evaluated by means of DLS and zeta potential measurements, respectively. The phyto-developed nanoparticles presented good free radicals-scavenging properties (investigated via a chemiluminescence technique) and also urease inhibitory activity (evaluated using the conductometric method). Andropogon—AgNPs could be promising candidates for various bio-applications, such as acting as an antioxidant coating for the development of multifunctional materials. Thus, the Andropogon-derived samples were used to treat spider silk from the spider Pholcus phalangioides, and then, the obtained “green” materials were characterized by spectral (UV-Vis absorption, FTIR ATR, and EDX) and morphological (SEM) analyses. These results could be exploited to design novel bioactive materials with applications in the biomedical field.

Nanoformulations in Pharmaceutical and Biomedical Applications: Green Perspectives

“…Nanopharmaceuticals may have different biodistribution patterns compared to conventional drugs [ 375 ]. Their accumulation in certain organs or tissues could raise concerns about long-term effects on those specific areas.…”

From Nature to Technology: Exploring the Potential of Plant-Based Materials and Modified Plants in Biomimetics, Bionics, and Green Innovations

“…These NPs are synthesized by integrating plant-derived compounds into a bio-matrix (such as biomimetic cell membranes, spider silk, etc. ), often enhancing the properties of the NPs [39][40][41].…”