Nanodevices (ナノデバイス Nanodebaisu?) or Nanomachines are devices whose components are at or at or close to the scale of a nanometer (10−9 meters). They are microscopic objects that are used in a variety of ways in Academy City.
- Transmitter: The first use of the term "nanodevice" in the Toaru Majutus no Index novels. It uses the furigana that spells out Nanodevice, but its kanji can be translated as Transmitter (発信機 Hatsushinki?). It is used by Academy City to prevent against the abduction of students by possible agents or spies when they leave Academy City premises. As it's name suggests it most likely transmits a signal which indicates where the student is.
However, it is also used for other things such as sending a command to the transmitter that can shut down the organs of its host, as what happened with Sunazara Chimitsu. It can also act like bugs that can be implanted on a person's body or clothes. As Kumokawa Maria demonstrates, it can be destroyed through heat.
- Mimosa: The Mimosa can be referred to as nanodevices despite not having circuitry or power. They can be more accurately described as nano-sized reflective alloy.
- UNDER_LINE: Only about a 70 nanometers in diameter, these minuscule machines that make up the UNDER_LINE network that is spread all over Academy City, acting as a direct line of information to the Windowless Building allowing Aleister Crowley to survey anyone and anywhere in the city he chooses.
- Type: Mosquito: Baba Yoshio's robotic mosquito can insert nanodevices into a human, incapacitating them. It probably uses a Mosquito Needle, and moreover, seems to use a somewhat similar nanotechnology that incapacitated Sunazara Chimitsu. Yoshio notes that the nanodevices are expensive.
- Medical purposes: Mugino Shizuri teases to Hamazura Shiage that she may have been revived through nanodevices. It can be assumed that there is technology which uses nanodevices for medical purposes.
- ↑ Toaru Majutsu no Index Light Novel Volume 04 Prologue
- ↑ Toaru Majutsu no Index Light Novel Volume 19 Between the Lines 1
- ↑ Shinyaku Toaru Majutsu no Index Light Novel Volume 04 Sub.13
- ↑ Toaru Majutsu no Index Light Novel Volume 15 Between the Lines 2
- ↑ Toaru Majutsu no Index Light Novel Volume 15 Between the Lines 4
- ↑ Toaru Kagaku no Railgun Manga Chapter 050
- ↑ Toaru Majutsu no Index Light Novel Volume 19 Chapter 4 Part 2
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