In my books I often do surgical scenes in which cell welders and bone welders are used. It seems to me that I can now properly describe and extrapolate that technology. But of course now I must think in terms of reprinting missing limbs and organs, or even reprinting an entire body. Growing such stuff in the good old sfnal amniotic tank is old now.
The 2D structures being printed with the bio-ink enables exquisite control over cell distribution and this already presents exciting opportunities to improve drug screening and toxicology testing processes. Building on this, 3D bio-printing, with which patient-specific tissue replacements could be fabricated, is within the grasp of researchers.