The seawater and Seastone tests that followed went smoothly. Raditz was unaffected.
The Devil Fruit really seemed to have vanished, though verifying whether it could reincarnate would be difficult.
So far, the scientists under Lind had yet to develop a technique for capturing Devil Fruits. They could only search patiently and see whether they could find one.
Lind had also tried the method used in some fanfiction: placing a Devil Fruit User and some fruit in the same sealed chamber lined with Seastone, then killing the Devil Fruit User.
Unfortunately, the results were poor. It was essentially useless, and with such a small sample size, even an occasional success gave him no way to tell whether the sealed chamber had worked or the fruit had simply reincarnated inside the room by chance.
That made sense. If it were really that easy, then after Kaido took control of Wano Country and began exporting Seastone in large quantities, the World Government, which had no shortage of Seastone, could easily have mastered the technique.
Lind considered Vegapunk's statement in the original story that Devil Fruits were born from human imagination and desire, along with the patterns of Devil Fruit reincarnation in Flower Country and Wano Country.
He felt that controlling a Devil Fruit's reincarnation required an anchor of faith.
Alternatively, one could use a fruit like the Dark-Dark Fruit, which could manipulate the "fantasy factor" within Devil Fruits, to make that factor reincarnate in the appropriate fruit as desired.
The Munch-Munch Fruit from the original story and Lind's Mutation Fruit shared that ability to manipulate the "fantasy factor," though their specialties differed from the Dark-Dark Fruit's.
The Munch-Munch Fruit could directly analyze and control the core of a particular Devil Fruit's "fantasy factor," allowing its user to wield the corresponding ability.
Lind's Mutation