1. NANO HERBAL MEDICINES: A REVIEW
Plants and herbs have been used since long for curative/ healing purposes of human ailments. According to the World Health Organization, 80% of people in developing countries depend on traditional medicinal practices to meet and/or supplement their basic health needs due to the enormous diversity of structures of medicinal plants, their chemical composition, popular uses and fewer side effects. Herbal medicines have been widely adaptable since ancient time, especially in India because of their better therapeutic value for various diseases (like curcumin, periwinkle, reseveratol, quercetin etc.) with lesser side effects as compare to conventional medicines along with their easy metabolization into the body. Nanotechnology is a novel approach for phytopharmaceuticals to deliver the components in a sustained manner in the form of nano sized novel drug delivery carriers (like nanopartices, liposomes, dendrimers, ethosomes, nanoemulsion, micelles, micro emulsions, quantum dots etc.) which is considerable importance to improves bioavailability, patient compliance and other constrains of herbal medicines by bypassing all the barriers like deterioration of drug due to acidic pH, liver metabolism, toxic effects etc.