Tracking Lab-Grown Tissue With Light

New proof-of-concept photonic pH sensor could advance studies of tissue regeneration

Someday, doctors would like to grow limbs and other body tissue for soldiers who have lost arms in battle, children who need a new heart or liver, and many other people with critical needs. Today, medical professionals can graft cells from a patient, deposit them onto a tissue scaffold, and insert the scaffold into the body to encourage the growth of bone, cartilage and other specialized tissue. But researchers are still working toward building complex organs that can be implanted into patients.

“The long-term goal is being able to put implantable devices into people where you’re trying to grow bones and muscles, and then hopefully over time the sensors could be designed to dissolve away and you wouldn’t even have to go back in and remove them,” Ahmed said. “That’s the ultimate dream. But baby steps first.”
Author(s)Source
Paper: M.R. Hartings, N.J. Castro, K. Gill, Z. Ahmed. A photonic pH sensor based on photothermal spectroscopy. Sensors and Actuators B: Chemical. Published Dec. 12, 2019. DOI: 10.1016/j.snb.2019.127076NIST National Institute of Standards and Technologies
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