The object
Ulf Landegren co-invented proximity ligation assays, diagnostic molecular tools that detect proteins through paired binding probes and DNA amplification. Uppsala University identifies proximity assays as central methods from his group with broad use in clinical medicine, and a 2025 cancer-research award records his active work on protein analysis.
01
What Ulf did
Co-invented proximity ligation assays that turn paired protein-recognition events into amplifiable DNA signals.
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Why it matters
Proximity ligation made highly sensitive, multiplexable protein detection practical in solution and tissue samples.
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Living-status check
Uppsala's current research profile lists Landegren as research leader and 2025 work, while Cancerfonden lists his 2025 cancer-analysis project.