An ingenious scientist, Dr. Vegapunk has made great advances in the study of Devil Fruit in the One Piece world.
Dr. Vegapunk is the enigmatic scientist behind the World Government and the Navy. He has never been seen or show throughout the entire franchise, but his name is world renown. Hailing from the technologically advanced island of Karakuri, He is considered to be 300 years ahead of his time.
Cyborg soldiers for the Marines. They all are based on the likeness of Bartholomew Kuma. They are able to fire laser beams from their mouth and palms.
Kairoseki (Sea Stone)
Kairoseki, or sea stone is the only thing in the One Piece story that has the ability to stop Devil Fruit users. By being in mere contact with the stone, their powers are shut off and they begin to feel very weak. Dr. Vegapunk has implemented revolutionary ways to use this rare substance. It has been said that the Marines have sea stone handcuffs, nets, jail-cells, and even some of their weapons. Dr. Vegapunk has also found that by covering the bottom of Navy ships with sea stone, it will allow safe travel through the Calm Belt, an area filled with giant sea monsters.
Devil Fruit Research
One of the greatest mysteries of One Piece is the Devil fruit. It bestows incredible amounts of power onto those that eat it, but no one really knows what they are. Due to his research, Dr. Vegapunk is said to have discovered this secret. This is shown because he is able to make inanimate objects "eat" certain fruits. For example, Mr. 4 pet, Lasso is actually a gun that ate the dog dog fruit. Also, Dr. Vegapunk was able to create the Pacifista beam weapon by studying The Pika Pika no mi fruit of Admiral Kizaru. Another example of his is Spandam's sword, Funkfreed which ate the elephant elephant fruit.