Nanobot Swarm for Targeted Elimination of Tumour in Brain

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Published Nov 5, 2021
Shravasti Sarkar Suchithra V Sridharan M Manjunatha C

Abstract

Nanobots are nanometer-sized robots. Being so small, they often have very low computational power – a problem that can be solved by employing a swarm of nanobots. A nanobot swarm is composed of a large group of similar nano agents that can communicate in a decentralized as well as distributed manner, within any given environment to achieve a common goal. Swarm intelligence allows simple devices to arrive faster at optimal solutions. Swarm intelligence, first observed in nature (like in starlings, fish, baboons, ants, bees, etc), has a wide range of applications in many fields like industrial, military, soft-computing, etc. One of the fields where extensive research is being conducted to integrate swarm intelligence with current technology is the medical field. Starting from diagnosis of ailments to targeted delivery of drugs, using an invitro nano-swarm has a huge potential to revolutionize the medical field. This review discusses the use of nanobots that use swarming technology in the medical field for targeted drug delivery to eliminate cancerous cells in the brain. Brain cancer is one of the most challenging forms of cancer to treat, due to the delicateness of the brain as an organ, the blood-brain barrier and the structure of these tumours. For these reasons, conventional treatments like surgical removal of the cancer cells, chemotherapy, radiation therapy, etc are often futile with an average life expectancy rate of 12-18 months for the more aggressive forms of brain cancer. Currently, targeted drug delivery is still not within the reach of the common man, but it has the potential to change the playing field. Once the drug-carrying bot swarm is injected into the body, they will continue to move randomly until they come across a tumour cell. The nanobot will then release the drug in the vicinity of the cell. This ensures that larger doses are administered to bring about effective elimination of the tumour cells when compared to chemotherapy, where the drug is diluted in the blood and also affects the working of normal cells. Once the drug has been released, the nanobot will then direct all the other drug-carrying nanobots to the cancerous areas by some signalling method. Acoustic waves have proved to be harmless to humans, have low latency and the devices associated with sound wave generation tend to be less complex. Considering these, acoustic communications are more favourable as compared to its other contemporary communication methods like electromagnetic and molecular communication for signalling and exchange of information between the nanobots. This review considers several factors to keep in mind when deploying any agent in the brain and different components like sensors, actuator, power supply, etc. that have to be incorporated while building a nanobot. It also discusses some swarming techniques that can be implemented for decentralized control and acoustic communication between individuals in the nanobot swarm. Finally, there is a discussion about the different challenges faced while deploying a nanobot swarm in the brain. This review hopes to give direction to other researchers through a comprehensive compilation of different practices and advancements in the field.

How to Cite

Sarkar, S., V, S., M, S., & C, M. (2021). Nanobot Swarm for Targeted Elimination of Tumour in Brain. SPAST Abstracts, 1(01). Retrieved from https://spast.org/techrep/article/view/2959
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