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Chemistry Now: 21st Century Scientist: Seeing Tiny Cancer "Markers" Sooner: Purdue Chemist Works on 'Nano' Scale

In this 21st Century Chemist profile, Purdue University analytical chemist Mary Wirth works with "nanomaterials" to improve the clarity and accuracy of tests for tiny "biomarker" proteins that indicate disease--specifically, levels of PSAs, or Prostate Specific Antigens, that signal prostate cancer.

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