The progressions in electronics and the advancements in nanotechnology have brought about improvement that will change the way treatment and diagnosis is done nowadays. This improvement is Drug Delivery Robots, which has risen up out of the science fiction concept of robots travelling inside the body to analyze and treat disorders. The main promoted drug delivery robot was a capsule endoscope created to capture pictures of the gastrointestinal tract. Today, a wide range of capsule endoscopes are accessible in the market. Based on size they are slightly bigger than standard oral capsules, composed of a biocompatible case and have electronic mechanisms for capturing and transmitting images. Moreover, robots that have diagnostic highlights, for example, in vivo body temperature recognition and pH monitoring have additionally been introduced in the market. Nonetheless, a multi-functional unit that will analyze and treat disorders inside the body is yet to be created. The drug delivery robots have reformed the present method for diagnosis and treatment. Nanoscale robots for focused treatment and drug delivery offer a quickly rising robotics research sector. Recent progressions in the fabrication, design, and operation of nanorobots have incredibly improved their adaptability, function and potential clinical usage for an assortment of biomedical applications. They likewise open up numerous new and undiscovered therapeutic treatments, from microsurgery to drug delivery. Both untethered and tethered micro-scale gadgets with nano-scale highlights that can explore inside the human body provide extraordinary opportunities for targeted drug delivery. It holds an eminent future in the drug delivery technology target in cancer cases, the disease that is one of the main causes of death among younger as well as older people.

Drug Delivery robots have the ability to carry and deliver significant amounts of anti-cancer drugs into malignant cells without destroying healthy cells, thereby diminishing the side effects associated with current therapies such as the customary chemotherapy. Different diagnostic methods have been used for the diagnosis of ulcers, tumors and other disorders in the body. These methods include ultrasonic testing, x-ray imaging, endoscopy, sigmoidoscopy, colonoscopy and MRI. The advent of drug delivery robots have brought about a commendable change in the medical sector. The treatment and detection of deadly and chronic diseases have become accurate and easier in order to decide suitable treatment in time. This has prompted significant decrease in death rates that occur due to late detection or inappropriate detection and treatment of these diseases. The mandatory therapy for treatment of GI tract disorders with medications is oral administration, instead of a concentrated drug application on the affected area. This brings about inadequate effectiveness of drugs, and is commonly accompanied by undesired side-effects, with constraints in the usage of more effective doses, particularly in the treatment of tumors. A programmed drug delivery is highly desired in cases as such in order to deliver accurate dosses of the drug in the GI tract or near the tumor.