**2.3 Synthesis/production based on fungi**

Diverse fungal species have been documented to participate in the synthesis of silver nanoparticles [33]. The rapidity of silver nanoparticle synthesis by fungi has been observed to be significant. The biosynthesis of silver nanoparticles by fungi has been a subject of study for numerous researchers [34]. A study has demonstrated

#### *Biological Agents for the Synthesis of Silver Nanoparticles and Their Applications DOI: http://dx.doi.org/10.5772/intechopen.112072*

the extracellular synthesis of spherical silver nanoparticles through the interaction between Fusarium solani and silver nitrate [35]. The biosynthesis of silver nanoparticles by the Humicola sp. has been reported by Syed et al. The study demonstrated that the reduction of a precursor solution occurred through the interaction between Humicola sp. and Ag + ions, resulting in the production of extracellular nanoparticles [36]. The production of silver nanoparticles through bio-reduction of silver nitrate, induced by the extract of *Pleurotus cornucopia*, has been reported by Owaid et al. [37]. The biosynthesis of silver nanoparticles with antifungal properties was investigated by Xue et al. through the utilization of Arthroderma fulvum in an experimental setting [38]. According to Vigneshwaran et al.'s findings, the fungus *Aspergillus flavus* exhibited the accumulation of silver nanoparticles on its cell wall surface as a result of its interaction with a silver nitrate solution [39]. Additionally, Bhainsa and D'Souza conducted a study on the extracellular synthesis of silver nanoparticles utilizing *Aspergillus fumigatus*. The findings suggest that the amalgamation of silver ions and the cell filtrate resulted in the production of silver nanoparticles within a brief duration [40]. The utilization of *Fusarium oxysporum* leads to the extracellular synthesis of silver nanoparticles, which exhibit a size range of 5–50 nm [41]. Furthermore, the introduction of a silver nitrate solution to *Phanerochaete chrysosporium* mycelium resulted in the production of silver nanoparticles [42]. The bio-reductive synthesis of silver nanoparticles was demonstrated by Korbekandi et al. through the utilization of *Fusarium oxysporum* [43].
