A chemical time capsule

Written by Victoria Richards

Inspired by tree rings, scientists have designed a sensing device that records chemical information over time as spatial patterns.

The transformation of time-varying signals into spatially-varying signals is fundamental for recording temporal information. For trees, growth rings that form throughout their lifetime provide a historical record of their growth conditions. Now, a team led by Sindy Tang at Stanford University, US, have designed a time capsule to record information about the occurrence of chemical events.

To read the fill article please visit Chemistry World.

Time capsule: an autonomous sensor and recorder based on diffusion–reaction
Lukas C. Gerber, Liat Rosenfeld, Yunhan Chen and Sindy K. Y. Tang  
Lab Chip, 2014, Advance Article
DOI: 10.1039/C4LC00640B, Communication

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