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Nanobots to Assemble Medical Devices inside your Body
Nanotechnology is being explored by scientists to provide solutions for various treatments such as cancer and healing of wounds. A study has been published in the Advanced Functional Materials showing that there is a possibility of developing mini-robots that can carry out delicate functions in the human body. The nanotechnologies will have special abilities to swim in the bloodstream and go ahead ‘to assemble medical devices’ in the human body. The aim of the scientists is to make things that are small enough to get into the body easily with the aim of creating a nano-doctor. Dr. Metin Sitti of Carnegie Mellon University and Dr.Eric Diller have used magnetic rods to create an uncomplicated version of micro-robots. Each micro-robot is approximately one millimeter long and has two gripping arms. A human doctor will be able to operate the micro-robots by employing magnetic field forces to enable the movement of the robots and to operate the grippers. Currently, the completed experiments show that the nanorobots have the capacity of transporting minute objects as well as constructing bridges using the rods. According to Sitti, future inventions are expected to be injected into the blood system, alongside other parts of micro-machines and can swim to a wound. The nanorobot will then put up a medical device but remain afloat in the bloodstream. Food and drug administration-pill cameras have been in existence since 2001, but the technology is very basic compared to nanorobots. These cameras carry out imaging roles but they do not have their self-driven propulsion system, and therefore they require the operation of a doctor to move through the body. Dr. Sitti is hence working on a new capsule with greater capabilities compared to the existing versions. The new capsule – a therapeutic capsule endoscope should possess two magnets on either side to allow the doctor to maneuver it externally. The new technology will also allow the doctor to spin and twist the nanorobot capsule from inside the patient’s body. The capsule is created from a flexible elastomer, which can also allow the doctor to adjust the shape of the capsule. The doctor can place a drug inside a chamber at the middle of the capsule that enables him to inject medicine to a particular area by altering the form of the capsule. Once he has obtained reliable control, the capabilities of the device can be increased and the capsule can also be adjusted to perform other functions such as tissue biopsy and cauterizing or cleaning sites affected by wounds.
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Published on May 12, 2014
The nanotechnologies will have special abilities to swim in the bloodstream and go ahead ‘to assemble medical devices’ in the human body.