Biogenic Synthesis of Nanoparticles by Plant Latex and Green Nanotherapeutics

The investigation for environmentally benign and sustainable substitutes to traditional nanoparticle (NP) synthesis has prompted researchers to investigate plant-derived biogenic pathways. Among these, plant latex – a naturally occurring, complex biological fluid – has emerged as a potent medium for the environmentally friendly production of metal nanoparticles because of its intrinsic richness in bioactive substances, including flavonoids, phenolics, alkaloids, proteins, and terpenoids. These phytochemicals enable latex to function as both a stabilizing and reducing agent in nanoparticle formation, removing toxic reagents and harsh processing conditions. The resulting latex-mediated nanoparticles exhibit high biocompatibility, structural uniformity, and enhanced biological activity, making them highly suitable for nanotherapeutic applications. Recent research has shown that the efficacy of latex-derived silver, gold, and zinc oxide nanoparticles in antimicrobial, anti-inflammatory, antineoplastic, and tissue-repairing applications. However, even with these developments, issues such as variability in latex composition, lack of mechanistic understanding, and limited scalability persist. Nevertheless, ongoing research focused on optimizing synthesis protocols and integrating latex-based nanomaterials with modern drug delivery systems underscores the vast potential of latex-mediated green nanotechnology in developing next-generation, eco-safe therapeutic solutions.