0000000000807200
AUTHOR
Dago M. De Leeuw
Ferroelectricity and piezoelectricity in soft biological tissue: Porcine aortic walls revisited
Recently reported piezoresponse force microscopy (PFM) measurements have proposed that porcine aortic walls are ferroelectric. This finding may have great implications for understanding biophysical properties of cardiovascular diseases such as arteriosclerosis. However, the complex anatomical structure of the aortic wall with different extracellular matrices appears unlikely to be ferroelectric. The reason is that a prerequisite for ferroelectricity, which is the spontaneous switching of the polarization, is a polar crystal structure of the material. Although the PFM measurements were performed locally, the phase-voltage hysteresis loops could be reproduced at different positions on the tis…
Extracellular electrical recording of pH-triggered bursts in C6 glioma cell populations
Extracellular electrode recording demonstrates acid-triggered electrical activity in glioma cell populations.