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C. Giving Doctors Much Needed Feedback

Narrator: This is Science Today. Researchers are working to improve a technique called tissue welding, which with the help of lasers, is a less invasive way to close a wound without stitches. Lawrence Livermore National Laboratory researcher Luis Da Silva says one facet of their work is to come up with a feedback system to reassure doctors that their adhesive solder holds up.

Da Silva: We've actually been able to develop a diagnostic which looks at the temperature of the solder and by monitoring that is able to kind of reduce the chances of burning it and has significantly increased the likelihood of success of a good joint.

Narrator: Da Silva says with this feedback system, a doctor can shine a light at the joint and a computer would determine when to turn the laser off and how to control the temperature.

Da Silva: So, that is the emphasis - building something that the surgeon can use as a feedback...something that controls or helps the surgeon in determining yeah, it's a great solder, the strength as well. I can walk away from it and be sure it's actually going to work and not be afraid that it's going to rupture.

Narrator: Early trials have so far been very successful. For Science Today, I'm Larissa Branin.