Strategic Shuffling of Clay Layers to Imbue Them with Responsiveness.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 28418190.
- Also identified by DOI 10.1002/adma.201701164.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Layers of naturally occurring clay minerals are rearranged to prepare highly sensitive multiresponsive clay-clay bilayer membrane (CCBM). The CCBM introduced here responds to the minuscule changes in the surrounding environments including temperature, humidity, and presence of solvent vapors by morphing in specific manners. Strips cut from CCBM exhibit up to 588 N kg<sup>-1</sup> force output when exposed to temperature fluctuations. Inheriting the natural stability of clay minerals, CCBM demonstrates extreme robustness, heating up to 500 °C, cooling with liquid N<sub>2</sub> and exposure to corrosive chemical vapors did not deteriorate its bending performance. Mechanistic studies suggest that shape transformations of CCBM are driven by the unequal response of its components to external stimuli.