The advancement in science and technology in the medical field amends a path for embedding new treatment modalities to the challenges presented by the viable diseases.Photodynamic therapy(PDT), sometimes called photochemotherapy, is a form of phototherapy using nontoxic light-sensitive compounds that are exposed selectively to light, whereupon they become toxic to targeted malignant and other diseased cells. PDT has proven ability to kill microbial cells, including bacteria, fungi and viruses. This utilizes light to activate a photosensitizing agent in the presence of oxygen. The exposure of...