D.I.A.N.A.

The Digital Implanted Axon Neurotransmission Attenuator, abbreviated as D.I.A.N.A., is a biological implant designed by Jemma Simmons to suppress her memories, primarily about the location of Leo Fitz.
==History==
When Jemma Simmons started experiencing slight memory loss and concentration breaks she feared that D.I.A.N.A was malfunctioning so she asked Enoch, as he was the one who helped making the implant, along with Leo Fitz, to remove it and check if it had any problems. While Enoch was checking the implant, Deke Shaw walked in and upon seeing Enoch interfering with Jemma's brain he freaked out and attacked Enoch. Simmons was then obligated to explain to Shaw that she had an implant blocking her memories so she wouldn't know the location of Fitz. At the time, she didn't know but D.I.A.N.A. was also blocking her memories of Alya, her daughter, who she left behind to go on the mission of saving her friends.
After jumping from 1983, Zephyr One entered a time storm where Daisy Johnson and Coulson were stuck in a time loop and forced to relive several attempts of saving the team before the Zephyr reached the end of the storm. In order to do that, they needed to fix the Time Drive but Jemma Simmons was the only person who would know how to do that, if she didn't have her memories blocked by D.I.A.N.A. In these several attempts, Johnson and Coulson try to convince Simmons to remove her implant and ask for the other's help. However, Enoch is programmed to prevent the implant from being removed at all costs so he fights the team several times even reaching the extent of killing them. After several attempts, Johnson, Shaw and Coulson finally manage to convince Simmons and successfully remove the implant. Once the implant is removed, all of the suppressed memories start flowing in Simmons' brain, overwhelming her. She can't help it and instantly bursts in tears as she remembers that she left her daughter to go on the mission. Johnson tries to calm her down and asks her how to fix the Time Drive, to which she responds with Enoch being the key: his Electrochron Displacement Mechanism regulates energy stability so it could fix the Time Drive, although that would imply killing him. After this, the loop resets and the implant goes back in place.
After leaving the time storm, the Zephyr goes to 1983 once more and the team settles down at the Lighthouse. There, Johnson told Simmons they removed her implant during the time loops and asks her if she remembers anything, also telling her that she was inconsolable. Simmons answers by saying it doesn't matter because she must not remember Fitz' location or anything else D.I.A.N.A. is blocking.
After reuniting with the team, Fitz was able to help Simmons regain her memory by telling everyone the story of their time together, causing Simmons' memories to slowly come back piece by piece. However, it took Simmons a while to remember the existence of Alya.Agents of S.H.I.E.L.D.: 7.13: What We're Fighting For
==Capabilities==
D.I.A.N.A. is a device that is able to block and suppress one's memories entirely, even resisting a Cerebral Fusion Machine when used in an attempt to access those blocked memories, as tried by Nathaniel Malick. As the human brain is very complex and FitzSimmons didn't have the knowledge nor the means to make a perfect implant, D.I.A.N.A. wasn't flawless. When it was dissolved, and consequently removed, by the Chronicoms, the implant didn't return the memories to Simmons but instead erased (but not entirely) some others from her brain, such as her memory of who Fitz was. Eventually, she would regain these lost memories, but only with the help and efforts of Leo Fitz. 
==Appearances==
In chronological order:
* (flashbacks)
* (flashbacks)
*
*
*
* (mentioned)
*
*
*
==Trivia==
*The implant was named after Elizabeth Henstridge's engagement ring.
==Gallery==
Diana.jpg
Diana in Simmons' neck.jpg
D.I.A.N.A..jpg
Diana simulation.jpg
==References==
Category:Items
Category:Agents of S.H.I.E.L.D. Items