Article (url) and word count
URL of the article: https://www.sciencedaily.com/releases/2019/08/190821111820.htm (21 August 2019)
word: 502
Vocabulary
| Words from the text | Synonym/explanation in English | Translation in French |
|---|---|---|
| Skin | epidermis / The body’s outer covering, formed of a thin layer of tissues. | épiderme |
| Applications | utilization / The action of putting something into operation. | applications |
| Dynamic dipslays | Interactive dipslays / An electronic device that uses pictures or data for visual presentation and, in our case, is able to react to it’s environnment. | affichage dynamique |
| To coat | to cover / To provide with a layer of some sort on the skin(fur, clothes, shell,…). | recouvrir |
| Polymer | synthetic surface / A natural or synthetic substances composed of very large molecules, macromolecules, made of smaller one’s (monomers). | polymère |
| To squeeze | to press / Manage to put inside a norrrow or small space. | compresser |
| Microdroplets | - / A very small drop. | micro gouttellette |
| Cuttlefish | cuttle / A swimming marine mollusc that resembles squid, it has eight arms and two long tentacles. | seiche |
| Chromatophores | melanocytes (only for mammals and birds) / Cells or groups of cells that contains pigments and are able to reflect light. They can be found in a wide varieties of animals: fish, reptiles,cephalopods… | chromatophores |
| Pigments | - / An organic compound that’ll give colour to animal and plants tissues. | pigment |
| Elastic energy | strain energy / The mechanical potential energy stored in the configuration in a physical system leading to elastic deformation. | énergie de déformation |
| To bind | to cohere / Stick together a bunch of object into a single mass. | se lier |
| Clusters | bunch / A group of similar things combined together | amas |
| To load | To fill / To fill with a large amount of something. | remplir |
| To shadow | To overshdow / To cast a shadow over. | faire de l’ombre |
| Layer | film / The thickness of a material. | couche |
| Edge | extremity / The outside limit of an object. | bord |
| To peel | to skin / To remove a thin layer covering something. | se retirer |
| Illumination | light/ Lighting | illumination |
| Nanoscale | - / A scale of 10^9 metre. | échelle nanoscopique |
| Roll-to-roll | R2R processing / Manufacturing technique involving continuous processing of a flexible substrate as it is transferred between two moving rolls. | - |
| To herd | To gather / To put together. | rassembler en troupeau |
| To fund | To finance / To provide with money. | financer |
Analysis table
| Researchers | University of Cambridge: Andrew R. Salmon (doctorate in Nanoscience and Nanotechnology), Sean Cormier (NanoPhotonics Centre), Wenting Wang (department of Chemistry, postgraduate student), Chris Abell (Department of Chemistry, professor in medical science), Jeremy J. Baumberg (Department of Physics, professor of nanophotonics) |
| Published in? | Advanced Optical Materials; under the name:“Motile Artificial Chromatophores: Light‐Triggered Nanoparticles for Microdroplet Locomotion and Color Change” (08/20/2019) |
| General topic? | How can we use the photometric properties of gold coated nanomachines, inside water droplets, in order to develop genuine color-changing materials. |
| Procedure/what was examined? | 1) Creation of nanoparticules covered by a polymer shell. 2) squeezed into microdroplets of water (creating an artificial “cell”) floating inside oil. 3) Exposure to light or heat. |
| Conclusions/discovery? | When exposed to heat the nanomachines will try to stick together forming a cluster, expelling all the water, and ,depending on the herd shape, will sport a new color (just like a chameleon skin). When cooled, they reabsorb the water and get back to their original organisation. Light as also an effect on them, they propulse themselves towards the light sources by producing bubbles. |
| Remaining questions? | What are the effects of the shapes and materials ,from the nanomachines, on the obtained color? What collective behaviours could be adopted by the herd of nanoparticules when using structured light? |