Cells in Living Color: Filopodia
Cellular projections called filopodia grow and contract on the surface of this cell, waving like tiny limbs or porcupine quills.
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Cells in Living Color: Chromosomes
Chromosomes in a cell line up next to each other and then slide apart as they are partitioned into two daughter cells.
Football Helmet Tests for Safety
NOCSAE, an independent and non-profit standard-setting body, has developed sophisticated performance and standard tests for football helmets and facemasks, as well as other sports, and is a leader in scientific research to understand concussions and head injury. This is a drop test to the side of the helmet.
Football Helmet Testing
NOCSAE, an independent and non-profit standard-setting body, has developed sophisticated performance and standard tests for football helmets and facemasks, as well as other sports, and is a leader in scientific research to understand concussions and head injury. This test is testing the linear impact.
Scientists Use Light to Make Worms 'Dance'
The research could reveal how neural circuits work together in response to their environment.
Steering Pills Safely
In this video, researchers use a computer program control the position of magnetic pill inside a rat's intestine.
Molecular Moisturizing
Researchers improved on a technique called stimulated Raman spectroscopy to capture real-time images in the skin of living mice. To observe the absorption of trans-retinol, a common skin-care product, into a mouse’s skin, the team tuned two lasers to the frequency of a lipid in the drug and trained the lasers on the application site, yielding images in real time of the drug traveling down a hair shaft into the sebaceous gland.
Going with the Flow
Using stimulated Raman spectroscopy, researchers tuned lasers to the frequency of proteins in red blood cells. They trained the lasers on blood vessels in the ear of a mouse. A detector captured the resulting protein signals, translating them into images, which researchers sequenced together to create a video of red blood cells flowing through the capillaries of a mouse. The movie shows a Y-shaped junction of blood capillaries with individual red blood cells.
Exposing a Galaxy within the Brain
A new imaging method developed at Stanford reveals the complex array of synapses in the cortex.
Brain Control
Technology Review visits Ed Boyden, an assistant professor at the Media Lab and leader of the Synthetic Neurobiology Group at MIT, in his lab, where he demonstrates a device to turn neurons on and off and discusses how photosensitive proteins can be used to study and manipulate the workings on the brain.
