To help detect infectious diseases such as anthrax, HIV, and smallpox, researchers from Northwestern University developed a technique for creating DNA detection probes to "fingerprint" these biological agents. Attached to tiny gold particles are molecules that provide a unique signal (the "fingerprint") when a light is shined on them and a single strand of DNA designed to recognize and bind a target of interest. If a disease target is present in the sample being tested, strands of DNA bind to the appropriate spot on the chip. Corresponding nanoparticle probes latch onto any matches, which are then coated with silver. A laser scans the chip, and signals for the probes are recorded. A unique "fingerprint" can be designed for each biological agent. For more information, contact Chad Mirkin at email@example.com.
These new 3D-printing technologies and printers include some that are truly boundary-breaking: a sophisticated new sub-$10,000, 10-plus materials bioprinter, the first industrial-strength silicone 3D-printing service, and a clever twist on 3D printing and thermoforming for making high-quality realistic models.
Ear-based heart-rate monitoring gained momentum recently, as sensor maker Valencell Inc. announced it has licensed its biometric earpiece technology to Samsung Electronics Co. Ltd for use in so-called “hearable devices.”
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