HISTORIC REVIEW ON MODERN HERBAL NANOGEL FORMULATION AND DELIVERY METHODS
Chemistry deals with herbal constituents are often coined as phytochemistry. Herbal constituents have profound improvements in drug discovery for several existing diseases. Many of these constituents are restricted from pharmaceutical discoveries due to two important reasons: pharmacodynamics and pharmacokinetics. There are many new technological strategies and comparisons have been studied to improve the herbal discoveries in the pharmaceutical market. This review paper will highlight historical evidence of nanogels which is the most important strategy applied to several herbal medicines with high patience compliance, delivery rate, and efficiency. Nanogels are nanoparticles combined with cross-linked polymer networks with desirable features to carry hydrophilic or hydrophobic drugs in a more stable condition. Nanogels are highly preferred substances for herbal medicine in terms of stability and rapid response to the external stimuli factors. Nanogel can facilitate the herbal products with higher cellular penetration than existing and hence, it proves to be the new dimension for both oral and transdermal drug delivery for several unmet diseases like cancer, diabetes, and chronic disorders. By the way, including the recent technological constituents to herbal drugs, it can possess high bioavailability, low toxicity and enhance the sustained release .
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