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Reveal the enemy

Researchers have developed a novel biosensor using carbon nanotubes and aptamers to detect Salmonella typhi bacteria at concentrations as low as one bacterium in 5 mL. The technique enables fast, simple, and precise detection of micro-organisms.

SourceWiley·DateJul 20, 2009

Molecular detectors may refine cancer treatment

Researchers at the University of Florida have developed a new method to detect subtle differences in leukemia cells using molecular probes called aptamers. This technique has the potential to improve diagnosis and treatment for cancer patients by providing more precise and personalized care.

SourceUniversity of Florida·JournalClinical Chemistry·DateJul 19, 2007

Hairpins for switches

Researchers created hairpin-shaped RNA molecules that can differentiate between riboswitches in on and off states. These aptamers could help find new antibiotics by binding to the switches of pathogens, blocking essential protein synthesis.

SourceWiley·DateDec 12, 2006

Just dive in

Researchers at the University of Illinois developed a rapid diagnostic test for cocaine detection using tiny gold spheres and aptamers. The test strip, which can be used with just a sample dip, accurately identifies cocaine presence and has broad practical application potential.

SourceWiley·DateNov 21, 2006

Scientists develop new, molecular approach to early cancer detection

Researchers at the University of Florida have successfully tested a new method to detect leukemia cells and believe it can be used to diagnose cancer at the molecular level. The technique uses aptamers, short strands of DNA that can recognize cancerous cells without prior knowledge of molecular changes associated with the disease.

SourceUniversity of Florida·JournalProceedings of the National Academy of Sciences·DateJul 27, 2006

Neutralizing a protein linked to tumor development

Aptamers may have therapeutic effects against cancer by blocking RET downstream signaling events. The study uses whole-cell SELEX to identify macromolecules with potential therapeutic effects against other transmembrane receptors involved in tumorigenesis.

SourcePLOS·JournalPLOS Biology·DateMar 21, 2005