Chen Ming, apart from letting the Insect Queen conduct prosthesis research earlier, also tasked her with studying a capability based on the Insect Race's abilities.
Because he discovered that the Insect Race had a very strong resistance to toxins and the like.
To be precise, it's not resistance, but a capability.
The Insect Race can secrete special substances at an incredible speed after ingesting toxins which can eliminate or neutralize the poisonous materials.
For the Insect Race, these special substances are antidotes, but not necessarily for humans.
Hence, Chen Ming asked the Insect Queen to find a way, when secreting these special substances, to remove the harmful parts to humans while retaining the original function.
Chen Ming himself doesn't have toxin resistance; if someone were to poison him, he might rely on the Insect Queen's abilities to be saved one day.
And indeed, the Insect Queen managed to make this technology successful.
