Nanoparticles Changes Properties While Interacting with Living Organisms

Nanoparticles Changes Properties While Interacting with Living Organisms

Researchers at Northwestern University discovered that naomaterials forms a unique sticky layer on interactions with living organism.

Most of the personal electronic devices uses nanomaterials, however the mannerisms of the interactions of these tiny particles with our environment is still unknown, To unearth these facts, a research team of Northwestern University chemists and colleagues from the national Center for Sustainable Nanotechnology, studied to gain insights on the interactions of nanoparticles of gadgets with the living organisms. They concluded that these nanoparticles develop new properties when interacted with living organisms, causing the particles to turn sticky in nature.

The researchers found that the nanoparticles formed a layer fragmented lipid coronas, which made the particles to stick with one another forming long kelp-like strands. The particles having 5 nanometer sizes in diameter formed long structures that are microns in size in solution, however, the role of cells due to the behavior of nanoparticles is still unknown.

Franz M. Geiger, professor of chemistry in Northwestern’s Weinberg College of Arts and Sciences and lead researcher of the study, said: “This study provides insight into the molecular mechanisms by which nanoparticles interact with biological systems. This may help us understand and predict why some nanomaterial/ligand coating combinations are detrimental to cellular organisms while others are not. We can use this to engineer nanoparticles that are benign by design.”

The researchers experimented with the help of computer simulations and found that the particles formed a circular layer of lipids spontaneously on interactions with any bilayer membrane models. The work was published in the journal Chem on October 18, 2018.

Rina Vidyasagar

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