Jeremy, Thank you for sharing your research. Very interesting application indeed. I hope that no bats has been injured during the production of this thesis, and PSoC backpacks were released somehow.
It also reminded me another project, which took place in Carlsbad, New Mexico, USA, during the WWII, when bats were used to carry backpacks with small fire charges. The idea was to parachute them (frozen in containers) on the Tokyo. Upon landing the bats would warm-up and fly away, hiding under the roofs of then mostly wooden city. The project has extinguished itself when during the test bats wearing backpacks escaped and the whole lab burned to the ground. Funny enough, the idea worked...
At the time that this paper was written, no testing had actually been performed on any animals. It was designed to be light weight enough to satisfy the requirements that biologist place on radio tracking systems for flying mammals, and it would be attached in a way were it would fall off on its own if the bat could not be found again to recover the tag. Also, any experiments on live bats would be performed under the supervision of trained bat experts to keep both the bats and us, the researchers safe.
Thanks for your kind words too!