Nanomachine is the general term for a machine ranging in size from one micrometer (one-thousandth of a millimeter) to one nanometer (one-millionth of a millimeter) using MEMS (Micro Electro Mechanical Systems) technology. An example of a nanomachine would be a protein aggregate resembling the structure of a man-made motor using biomolecules such as DNA, proteins, and resins as parts. Nanomachines are used to alter the bodies of human hosts, enhancing their abilities and their performance in combat situations.
In February 2005, during the Shadow Moses Incident, Naomi Hunter injected nanomachines into Solid Snake's body, which included: a nanomachine to supply and administer adrenalin, nutrients, sugar, nootropics, and benzedrine; a nanomachine to recharge a Codec's battery; and a nanomachine to infect the body with the FOXDIE virus. Nanomachines also made it possible to restrict the host's actions, such as shooting a gun, and to stimulate the host's muscle fibers using ciliary motility. They could be manipulated to reduce the effects of disease, though they were unable to directly administer specific medicines. These nanomachines could also be recharged via a person's body heat, although they will end up lost if the person injected was bleeding or through excretion. The first-generation nanomachines, however, have a serious side effect: If they are injected into a person, they also have a chance with having a negative interference with someone's heart, especially if the person injected had suffered from rapid aging, as was what happened to Solid Snake.
Four years later, during the Big Shell Incident, the second-generation nanomachines were injected into the body of Raiden, who successfully carried out a solo infiltration into Big Shell. These nanomachines were more advanced and their simultaneous function as network terminals had been further enhanced. They also handled tasks such as remotely hacking into terminals and nodes connected to Big Shell's operational support network, communication inside the body, the dynamic creation of hallucinations through intracranial nanomachines, and the checking and remote management of VS (vital signs). The number of people with nanomachines implanted had also increased, and almost everyone involved with the Patriots or under their direct control had nanomachines implanted in their bodies. The Codec during this time was also primarily made up of these nanomachines, and users when in communication with others using the Codec also appeared outwardly silent due to speaking in a nano-based language. One interesting medical function of this generation was that they could effectively replace the use of bandages; by sitting still in one place for long enough, the nanomachines rapidly organized a vast supply of platelets in order to coagulate the wound.
The nanomachines were still limited to very important tasks. Nanomachines functioned as a fail-safe system between the President of the United States and the nuclear launch button as well as VIP-communication system between the President and his Secret Service detail.
By 2011, AT Security succeeded in making nanomachines even more complex and widely-used. The range of users was extended to include the regular armies of allied powers such as U.S. military personnel, as well as PMC soldiers and public organizations such as police agencies. Nanomachines, which in the past were designed to control and manage an individual body, were now used as a tool to control a group. In the nanomachines used in the military battlefield control system, "Sons of the Patriots (SOP)," the user's ID is embedded, which in turn was used to perform ID authorization for system-managed firearms and other such devices.
These nanomachines were designed for use at a pressure of 1 atmosphere. Therefore, in low atmospheric environments such as high mountains, they would malfunction and the secretion of neural substances would increase, due to changes in the concentration of oxygen in the blood. Consequently, PMC soldiers in the mountainous regions of South America head into battle in a state of intoxication due to excess secretion of neural anesthetic by nanomachines. If these nanomachines are also damaged during a SOP system lockdown, the PMC soldiers in question will also behave in a similar method to zombies.
The medical functions of this generation were far wider than any seen previously; they could break down alcohol to prevent intoxication, creating a situation where men like Drebin were forced to drink cola instead in order to replicate a similar sensation. They were also capable of purifying water upon consumption in order to prevent diseases and infections such as diarrhea. This is why Johnny was the only one of his team to be affected by the local water.
Medical and commercial nanomachines
In addition to the multitude of military nanomachines there existed a wide variety of medical and commercial nanomachines that were available to the public.
Naomi Hunter underwent nanomachine treatment for her terminal cancer. Although unable to heal her completely, they had the effect of stopping or greatly slowing down the progress of the cancer allowing her to lead a normal life. Vamp was infused with a variant of nanomachines that not only immunized him to contaminants, but also gave him high-speed regeneration, allowing him to heal from many fatal wounds, including gun shots and drowning. However, a flaw with the nanomachines is that they need to be continuously operating in order to benefit the user in its healing properties: If the user of these nanomachines had the nanomachines shut down and they end up reactivating around the same time the user experiences a mortal wound, the nanomachines, while still maintaining their function of high-speed regeneration, will cause unbearable pain to the user in the process. A similar regenerative nanomachine base was also placed into Raiden as a blood substitute, after FOXHOUND (actually the Patriots) removed his natural blood and placed it into cold storage. It is evident as it repaired his impaled chest from entering his Jack the Ripper state.
What do you know about nanomachines and their insanely cool capabilities? https://t.co/A5PShMKCr8 https://t.co/2jY7OdplLK— The American Geographical Society (@SteamPoweredDM) May 07, 2019
A "fat burning" nanomachine also existed according to a 2014 TV commercial, which supposedly amplified a person's workout, though the importance of remaining hydrated was also stressed. The Playboy issue released at the time of the Guns of the Patriots Incident also implied the possibility that the nanomachine product, NanoDrome, may have had potentially serious negative side-effects by asking if it was "NanoBoost" or "NanoBust".Warning: The following information is from outside Hideo Kojima's core "Metal Gear Saga." Its canonicity within the continuity is disputed, therefore reader discretion is advised.[?]
A similar nanomachine base was also utilized by the Colorado senator and 2020 Presidential Candidate Steven Armstrong to amplify his already physically fit body to reach immense superhuman levels. In his case, he activated his nanomachines with a unique motion sequence, his being a pseudo-sumo stomp, after this sequence, he charged his nanomachines by absorbing energy from vehicles including: Metal Gears, Hammerheads, APCs and other sources of energy. The nanomachines also hardened his body upon receiving or dishing out blunt trauma, causing the side effect of turning dark while doing so. The nanomachines also allow him to release powerful pyrokinetic energy attacks by channeling his stored energy into his limbs or different areas of his body. These energy attacks include charging his fist with energy to hit harder, punching the ground to cause "fire" walls, homing projectiles or exploding fissures, these nanomachines also allowed him to shot dash towards enemies at immeasurable speeds. It also gave him high-speed regeneration, allowing him to heal from extreme wounds and reattach severed body parts easily. It also caused some disfiguration towards the heart, and also turned it pale white. Interestingly enough, he gains access to pseudo-electromagnetic power and a stronger form by initiating the motion sequence again. In his stronger state, he has a crimson-red aura, is a lot stronger, a lot faster and gains the ability to charge towards his enemies multiple consecutive times while covered in an aura of pyrokinetic energy. It is also implied to turn Armstrong's eyes red at times.
What eventually became known as Dread Dust originated on Earth as a type of medical nanomachine. These nanomachines began to self propagate and eventually exhibit swarm behavior, as well as generating Kuban energy and Iris energy through some sort of process. Eventually, the nanomachine swarm took sentience and began to consume everything, generating wormholes with the energies and through them pulling forward castaways and objects from around throughout time.
Out of this sentience a massive creature known as the Lord of Dust was created as the central focus of the hive-mind. Once the world was ravaged, becoming Dite, the creature used its energy to create a wormhole to transport itself to the past and begin its cycle of consumption again.
This time loop continued an unknown number of repetitions until the intervention of Goodluck and the Captain broke the cycle, ensuring the Dread Dust never destroyed earth and the wormholes generated by the Dread Dust never coalesced.Non-"Metal Gear Saga" information ends here.
People who have utilized nanomachinesWarning: The following information is from outside Hideo Kojima's core "Metal Gear Saga." Its canonicity within the continuity is disputed, therefore reader discretion is advised.[?]Non-"Metal Gear Saga" information ends here.
Behind the scenes
The nanomachines featured in the Metal Gear universe are entirely fictional. Nanotechnology in the real world is predicted to be decades or even centuries away from the effectiveness portrayed in Metal Gear. Today, nanotechnology refers to the development of carbon nano-tubes, very simple molecules of carbon, not machines.
During the time of Metal Gear Solid 2: Sons of Liberty, it was originally intended that the use of nanomachines by medical organizations would have already begun. The electromagnetic pulse caused by the detonation of a high-altitude nuclear weapon (launched by the Sons of Liberty terrorists) would have therefore threatened the lives of tens of thousands of people undergoing nanomachine treatment.
Metallic archaea and the One that covers were both weaponized in similar ways as nanonmachines, whether it be to enhance soldiers or to remotely control technology, such as the metallic archaea inside a nuclear bomb that could seamlessly prevent it from detonating.