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MIT Scientists Create New Crystal Structures Using Nanoparticles

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Science Desk

In Short: MIT scientists have unlocked a new method to create crystal structures using nanoparticles, potentially revolutionizing the development of advanced materials.

Delta II ICESat 2 Liftoff, NASA
NASA (VAFB-20180915-PH_KLS02_0001) — public domain

MIT scientists have unlocked a new method to create crystal structures using nanoparticles, potentially revolutionizing the development of advanced materials. This breakthrough, detailed in a paper set to appear in Nature Materials, demonstrates how the flexibility and electrical charges of molecular connectors can determine the structures that nanoparticles form.

The team was able to create ordered crystal structures that have never been observed before, according to a report by ScienceAlert. This unexpected strategy gives scientists a new way to control how nanoparticles organize themselves.

Materials scientist Rob Macfarlane from MIT explains, 'People are interested in nanoparticle superlattices because of the promise of building designer materials where you have more say in what types of structures they can actually build into.'

The development of these new crystal structures is significant because controlling the assembly of nanoparticles allows for the creation of materials with new properties. Macfarlane adds, 'Controlling that is how you make materials that have new properties.'

The amount of flexibility of the polymer dictates how many bonds it has, allowing researchers to lower the number of bonds each particle has and create lattices they have never seen before. 'The amount of flexibility of the polymer dictates how many bonds it has. It allows us to lower the number of bonds each particle has and make lattices we have never seen before,' says a scientist involved in the research.

This new approach in nanoparticle assembly is counterintuitive and exciting. 'This is a new approach in nanoparticle assembly that hasn't been investigated before. It's exciting to have a new tool that is so counterintuitive,' notes another researcher.

A second charge density wave (CDW) appears below about −113 °C (–171 °F), running perpendicular to the first through the crystal, creating a 'checkerboard'. This discovery adds to the understanding of how materials behave under extreme conditions.

In addition to the nanoparticle research, scientists at Curtin University in Australia have identified what appear to be fossilized red blood cells, along with blood-derived molecules, preserved for over 100 million years, inside an unassuming dinosaur leg bone.

A remarkably preserved fossil from northeastern Spain is giving scientists a rare look at the skin, soft tissues, and possible coloration of an ancient crocodile relative that lived about 125 million years ago.

Background

MIT scientists have unlocked a new method to create crystal structures using nanoparticles, potentially revolutionizing the development of advanced materials.

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