{"id":18095,"date":"2020-03-04T19:34:00","date_gmt":"2020-03-05T00:34:00","guid":{"rendered":"https:\/\/dev.inrs.ca\/using-molecules-to-draw-on-quantum-materials\/"},"modified":"2021-05-21T12:40:09","modified_gmt":"2021-05-21T16:40:09","slug":"dessiner-sur-des-materiaux-quantiques-avec-des-molecules","status":"publish","type":"post","link":"https:\/\/dev.inrs.ca\/en\/news\/using-molecules-to-draw-on-quantum-materials\/","title":{"rendered":"Using molecules to draw on quantum materials"},"content":{"rendered":"\n

Over millennia, civilizations progressed through the Stone, Bronze, and Iron Ages. Now the time has come for quantum materials to change the way we live, thanks in part to research conducted at the Institut National de la Recherche Scientifique (INRS) and McGill University. <\/strong><\/strong><\/p>\n\n\n\n

\"Dessiner<\/figure><\/div>\n\n\n\n

Professor Emanuele Orgiu<\/a>, a researcher at INRS and a specialist in quantum materials. These materials are only a few atoms thick, but have remarkable optical, magnetic, and electrical properties. Professor Orgiu\u2019s research focuses on creating patterns on the surface of quantum materials in order to alter their properties. <\/p>\n\n\n\n

\u201cThe shape of the drawings helps determine the properties imparted upon the surface,\u201d he explains.  <\/p><\/blockquote>\n\n\n\n

His work has potential applications for (opto)electronic devices such as transistors and photosensors, but also for biosensing devices.<\/p>\n\n\n\n

\"Emanuele
Emanuele Orgiu professeur en physique mol\u00e9culaire et du dispositif \u00e0 l\u2019Institut national de la recherche scientifique<\/figcaption><\/figure><\/div>\n\n\n\n

The quantum materials expert has just taken a big step forward by synthesizing macrocycles\u2014large circular molecules\u2014on a graphite surface. This material consists of a stack of graphene, a single atom-thick sheet of carbon. Graphene is considered a quantum material. <\/p>\n\n\n\n

\u201cThink of macrocycles as tiny Lego blocks. It\u2019s impossible to build a ring in solution, a homogeneous mixture in which the blocks are diluted. But you can do it if you put them on a table,\u201d said Professor Orgiu, lead author on a new study, the results <\/a>of which were published online on February 18 in the journal ACS Nano<\/em>.<\/p>\n\n\n\n

In short, the postdoctoral researcher in Orgiu\u2019s group, Chaoying Fu, who is the first author of the study, has found a way to use macrocycles to draw molecular patterns on a material\u2019s surface. <\/p>\n\n\n\n

\u201cThe macrocycles are deposited on the surface in solution and only the molecules are left once the liquid has evaporated. We can predict how they will fit together, but the alignment happens naturally through the interactions with neighbouring molecules and the surface,\u201d Professor Orgiu explains. <\/p>\n\n\n\n

The study was conducted in collaboration with Dmitrii F. Perepichka<\/a>, a professor in McGill\u2019s Department of Chemistry, whose expertise helped understand how certain molecules could arrange themselves on the surface of graphite.<\/p>\n\n\n\n

\u201cThis is a great example of the power of a multidisciplinary approach where we combined organic synthesis and surface science. The level of control we achieved over the shape and the structure of synthesized molecules is quite remarkable,\u201d says Perepichka.<\/p>\n\n\n\n

Orgiu said the shape and size of macrocycles made them the ideal candidate to draw on the graphite\u2019s surface. <\/p>\n\n\n\n

\u201dThe advantage of these molecules is the large pores in their structure. We may eventually be able to use our macrocycles as a frame and decorate the pores with biomolecules that would promote biosensing properties of the surface. This is certainly one of our next steps for future projects.\u201d<\/p>\n\n\n\n

About the study<\/strong><\/h3>\n\n\n\n

\u201cSurface-Confined Macrocyclization via Dynamic Covalent Chemistry<\/a>\u201d by Chaoying Fu\u00a0et al<\/em>. was published in\u00a0ACS Nano<\/em>. They have received financial support from the\u00a0Natural Sciences and Engineering Research Council of Canada (NSERC)<\/a>, the\u00a0Quebec Centre for Advanced Materials (QCAM),\u00a0<\/a>the\u00a0Czech Science Foundation (GACR)<\/a>\u00a0and the\u00a0National Natural Science Foundation of China<\/a>.DOI: https:\/\/doi.org\/10.1021\/acsnano.9b07671<\/p>\n\n\n

\n

Other articles you might be interested in<\/h4>\n
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\n \"Infinitely\n <\/div>\n
\n Infinitely small, infinitely fast<\/a>\n <\/div>\n <\/div>\n <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Over millennia, civilizations progressed through the Stone, Bronze, and Iron Ages. 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