Hydrogels are the three-dimensional hydrophilic network which is crosslinked physically or chemically. also called as gels because they absorb considerate amount of water. The characteristic properties hydrogels swelling, mechanical properties, biodegradable, elasticity, biocompatible, easy to modify, flexibility, etc. They classified based on source, polymeric composition, biodegradability, co...

The conventional routes of drug administration has limited control over release and maintaining constant plasma therapeutic concentrations for longer periods time. To avoid these problems associated with utilization traditional dosage forms, there was essential need development new forms which would discharge drugs at controlled rate local activity. This led to improvement Novel Drug Delivery S...

Brain is the most sophisticated and important organ of our body. Together with spinal cord it control all actions, functions voluntary or involuntary plays a vital role in managing various systems It has its own protective barriers that protects brain from pathogens toxins may cause harm. These are namely Blood-Brain barrier Blood-Cerebrospinal Fluid Barrier. The highly lipophilic nature these ...

Liposome is a microparticulate colloidal vesicle, in which aqueous medium surrounded by single or multiple concentric layers of phospholipids. Both hydrophilic & hydrophobic drug can be incorporated, water soluble being trapped core and fat It offers controlled release, targeted delivery thus enhanced therapeutic efficacy reduced dosing frequency. Several liposome based formulation are appr...

The most sensitive and complex organ in the human body is eye, so special attention should be needed for administration of pharmaceutical substances into eye. It one difficult researchers preparation drug delivery to anatomical characteristics physiological properties eye considered delivery. dosage forms depend upon anatomy physiology Drug on outer part as well inner ocular structure therapy a...