Scientists cooled water without electricity by sending excess heat where it won't be noticed - space. The specialized optical surfaces they developed are a major step toward applying this technology to air conditioning and refrigeration.
Researchers have developed an artificial receptor that can bind sucrose in water with exquisite precision. The achievement represents a leap forward for the development of biosensors, and provides new insights into our perception of sweetness.
Researchers report multifunctional hydrogel microparticles bearing a spatially patterned binary authenticity code capable of tagging more than a billion distinct products and two integrated sensors reporting the product safety.