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How I Study Nanoparticles’ Interactions with Biological Soup

Designing non-toxic nanomaterials requires that we understand how those nanomaterials interact with biological systems. Systems such as you me, and all other organisms, contain a “biological soup” of chemical compounds, known as biomolecules. So the question becomes…how do nanomaterials transform once they come into contact with these biomolecules? This question has become increasingly important, especially … Continue reading

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Spying on chameleon nanoparticles inside living cells

If you are exposed to nanoparticles, you might think they would move around inside your body unchanged. However, it would be more accurate to think of them as tiny chameleons, constantly changing their properties as they move from one biological environment to another. Nanoparticles’ large surface area-to-mass ratio, which causes them to be highly reactive, … Continue reading

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The Cautionary Tale of DDT – Biomagnification, Bioaccumulation, and Research Motivation

We perform many different kinds of experiments in the Center for Sustainable Nanotechnology—some that you might expect (like making new kinds of nanoparticles), and some that you might not (like feeding nanoparticles to tiny organisms such as bacteria and water fleas).  The second kind of experiment may seem a little strange to you: why is … Continue reading

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Nature’s nanotechnology, bio-mimicry, and making the superpowers of your dreams a reality

Only over the past 20 years have we begun to harness the unique properties of nano-scale materials, while nature has been using nano- “technology” since the beginning of time to prevent infections, repel water, create colors, and climb vertical surfaces.  Inspired by nature’s advances, scientists and engineers are generating biomimetic applications for nanotechnology in today’s … Continue reading