Medical nanorobot. Computer artwork of a medical nanorobot injecting a drug into an infected cell in a human body. The cell is a T-cell, a type of white blood cell that mediates cellular responses of the immune system. Some T-cells are affected by HIV (human immunodeficiency virus), the virus that causes AIDS (acquired immune deficiency syndrome). The drug may be treating the cell for infection by HIV. This is an example of the future development of microscopic robot technology to treat diseases in new ways.
The maverick growth of nanorobotics in the field of biotechnology and health science has taken us one step forward to hit the technological singularity. At this point, we are in the growth phase and the most suitable time to invest all resources over miniature bots that could empower our health system by means of its minimally invasive applications.
Globally they are accepted as the mini sized army of doctors who enter inside of a body to treat variety of diseases by directly hitting the target section. Biochemically, a tablet that we ingest does not directly work on the section it should. It indirectly imposes its toxicity over organs where it is not required and that’s where a side-effect generates to bug you throughout your medicine cycle and after that in the post period.
These robots, scientifically micro/nano scaled machines go inside of a body, colonize the specific targets and spreads the drug on it. Not only that, they are also capable of performing precise operations like clearing clogged-up arteries etc. Such advantages pushed the Ecole Poletechnique scientist Selman Sakar to join hands with Hen-Wei Huang and Bradley Nelson at ETH Zurich to develop quality methods to achieve remote controlled bio-bots coupled with significant machinery.
Furthermore, they have designed a special platform that specifically tests locomotion of animals and imposes mobility criteria, forcing heat to shape-shift. Particularly, these bots are microscaled and soft, flexible, and motor-less in nature unlike its contemporary. EPFL+ETHZ venture bots are composed of a core made of biocompatible hydrogels upon which magnetic nanoparticles are distributed using an electric field. Nanoparticles actually accomplish both works simultaneously by providing a definite shape and also, incorporating an agility to swim through the applied magnetic field.
Once the initial processing is done, a polymerization step solidifies the bots and then they are plunged inside water to grow and gain a specific orientation that follows 3D architecture. As they become ready for the upcoming bio-inspired war, an electromagnetic field is applied to propel them and external heat is forced to help them unfold.
Their research is inspired by bacterium (Trypanosoma brucei) which causes sleeping sickness. The robots used as prototypes, have heat-sensitive flagellum similar to the bacterium that supports its swimming mechanism. Once inside, a Laser source is used to heat the flagellum and help them curl up to sport a hidden appearance. The second author of the respective paper explained that their specific production method allows one to test a series of shapes that could gear up the best motion capability for a certain task. The complete research has been published in Nature Communication.