{"id":5834,"date":"2012-05-23T09:29:51","date_gmt":"2012-05-23T16:29:51","guid":{"rendered":"http:\/\/cafe.foundation\/blog\/?p=5834"},"modified":"2013-11-12T10:40:52","modified_gmt":"2013-11-12T17:40:52","slug":"nano-to-macro-piezoelectrics-have-power","status":"publish","type":"post","link":"http:\/\/cafe.foundation\/blog\/nano-to-macro-piezoelectrics-have-power\/","title":{"rendered":"Nano to Macro – Piezoelectrics Have Power"},"content":{"rendered":"

Two far-flung enterprises are using piezoelectric devices to generate answers to widely disparate questions.<\/p>\n

The first set of questions is intensely personal.<\/p>\n

\u201cCan a heart implanted micro robot operate permanently?
\n\u201cCan cell phones and tiny robots implanted in the heart operate permanently without having their batteries charged?<\/p>\n

These provocative questions highlight a web page from KAIST<\/a>, the Korea Advanced Institute of Science and Technology, which focuses on the Institute\u2019s work with piezoelectric devices.\u00a0 Such devices can tranform vibrations, pressure, and other mechanical forces into an electric current.\u00a0 Older \u201chi-fi\u201d systems used piezoelectric cartridges in their LP-playing tone arms to transduce the vibrations from a needle touching the record\u2019s grooves into signals to the system\u2019s amplifier.<\/p>\n

\"\"<\/a>

Thin-film nanogenerator can produce power from very small physical movements<\/p><\/div>\n

Dr. Zhong Lin Wang explains, \u201cOur FAND (Flexible and Nano-bio-energy Device Lab) group has developed new forms of highly efficient flexible nanogenerator technology using freely bendable piezoelectric ceramic thin film nano-materials and nanocomposite materials that can convert the tiny movements of human body (such as heart beats and blood flow) into electricity.\u201d<\/p>\n