Can Sensors Make a Home in the Body?

Science  09 Aug 2002:
Vol. 297, Issue 5583, pp. 962-963
DOI: 10.1126/science.297.5583.962

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Researchers dream of implanting sensors and other devices that interface with the body's biochemistry to treat diseases such as diabetes and even predict coming ailments. But virtually every implanted material triggers the body's defenses to wall off and isolate nonnatural materials, and even if researchers overcome that hurdle, financial and ethical obstacles are lying in wait. Even so, many researchers are optimistic that they can avoid this immune response or manipulate it to their advantage.