Poster's note : this fascinating paper opens up a range of new possibilities for geoengineering: particles with controllable shapes; particles that do not affect ozone chemistry; particles that do not coagulate
http://pubs.rsc.org/en/Content/ArticleLanding/2016/SM/C5SM02765A Liquid plasticine: controlled deformation and recovery of droplets with interfacial nanoparticle jamming Xiaoguang Li, Yahui Xue, Pengyu Lv, Hao Lin, Feng Du, Yueyun Hu, Jun Shen and Huiling Duan Soft Matter, 2016,12, 1655-1662 DOI: 10.1039/C5SM02765A Abstract Air-exposed droplet systems are widely applied in material preparation and experimental design. Recently, a droplet system with unusual properties featured by a liquid-like appearance and solid-like deformability was produced. However, it was then just an interesting and perplexing phenomenon in the absence of basic understandings and clear perspectives for applications. Here we reveal that stable droplet deformation is attributed to monolayer nanoparticle jamming at the water/vapor interface, and that the normal shape can be recovered by jamming relieving. The degree of jamming affects the droplet shape and transparency and can be tuned by the squeezing force and droplet volume. Using these properties and control methods, we develop the deformed droplet into “liquid plasticine” with predesigned shapes, super-high transparency, and arbitrarily large volume. We demonstrate that liquid plasticine could be used as liquid lenses, channel-like containers, and miniature reactors -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
