To Buckle or Not to Buckle
The mechanophore glows more intensely as the stretching increases.
The polymer material is stretched with an increasing force resulting in a corresponding brighter emission of light from the mechanophore (here under UV light and with false colors). The graph shows the intensity of the emitted light following punctual increases in the stretching force applied to the polymer.
Math Meets Art: Möbius Kaleidocycles
Dr. Johannes Schönke and Prof. Eliot Fried of the OIST Mathematics, Mechanics, and Materials Unit have introduced a new class of kaleidocycles into the world. They call them Möbius Kaleidocycles because they resemble the famous Möbius band, a geometrical object with a characteristic topology. These mystifying objects can be turned inside-out continuously and have unique mathematical properties. While classical kaleidocycles typically have six hinges, the new class of kaleidocycles can have seven or more. Not only are these objects beautiful to see, but they could also have very practical applications in a variety of fields.
Fluorescent Calcium Imaging
The neurons in this video contain a dye that fluoresces when it encounters calcium ions. When the neuron is excited, calcium floods into the cell and the neuron fluoresces. The researchers monitored experiments such as this one to see which neurons were firing synchronously and which were firing separately.
Mice attempt to retrieve pellets
Inhibiting or exciting D1 or D2 neurons had different impacts on the mouse. The first clip shows a mouse with both D1 and D2 neurons working as normal successfully retrieving the reward. The second clip shows a mouse whose D1 neurons have been excited failing to retrieve the reward due to an initial error. The third clip shows a mouse whose D2 neurons have been excited failing to retrieve the reward due to a final error. The video clips were published in the research paper in Cell Reports.