Quantcast

Latest Washington University in St. Louis Stories

'BRIGHTS' Reveal Location Of Targeted Tissues
2012-11-21 10:41:38

Washington University in St. Louis Called BRIGHTs, the tiny probes described in the online issue of Advanced Materials on Nov. 15, bind to biomarkers of disease and, when swept by an infrared laser, light up to reveal their location. Tiny as they are, the probes are exquisitely engineered objects: gold nanoparticles covered with molecules called Raman reporters, in turn covered by a thin shell of gold that spontaneously forms a dodecahedron. The Raman reporters are molecules whose...

Bacterial Genes Make A Complex Logic Circuit
2012-10-13 11:27:12

The circuit is designed to act as the controller in synthetic bacteria that monitor and modify their environment By force of habit we tend to assume computers are made of silicon, but there is actually no necessary connection between the machine and the material. All that an engineer needs to do to make a computer is to find a way to build logic gates – the elementary building blocks of digital computers – in whatever material is handy. So logic gates could theoretically be...

Human and monkey joining hands
2012-07-21 06:11:36

redOrbit Staff & Wire Reports - Your Universe Online Did you ever look at those zig zags on an electrical activity line and wonder what it meant?  Surely nothing useful could be extracted from such a confusing thing. However, over the last 30 years, it has been found that much information can be gleaned by deciphering this activity. Scientists at Washington University in St. Louis, recently began decoding brain activity while monkeys reached and moved around an obstacle to...


Word of the Day
attercop
  • A spider.
  • Figuratively, a peevish, testy, ill-natured person.
'Attercop' comes from the Old English 'atorcoppe,' where 'atter' means 'poison, venom' and‎ 'cop' means 'spider.' 'Coppa' is a derivative of 'cop,' top, summit, round head, or 'copp,' cup, vessel, which refers to 'the supposed venomous properties of spiders,' says the OED. 'Copp' is still found in the word 'cobweb.'
Related