a blog by the NSF Center for Sustainable Nanotechnology
As a child, I spent many summer days at the beach in southern California. I remember playing in the surf, collecting shells, watching sea lions, and seeing the white noses of the lifeguards. In those days, lifeguards smeared thick, white zinc oxide paste on their noses to protect themselves from getting sunburned When my kids …
Continue reading "Not Your Daddy’s Sunblock – Why Thick, White Sunblock is a Thing of the Past"
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 "How I Study Nanoparticles’ Interactions with Biological Soup"
In Marco's previous post, you can read how making nanoparticles is like baking – different proportions of ingredients and different processing conditions (time and temperature) can turn your batter into a pancake, bread, a biscuit, etc. But how do you come up with recipes to make nanoparticles in the first place? In general, as I …
Continue reading "Two Ways to Make Nanoparticles"
Nanoparticles and the Environment Series, Part I (click here for part II) More than a year ago on this site, I talked to you about how nanoparticles were already all around us, and have been for most of human history. That day, I was hoping to show you that while nanotechnology may sound cool and …
Continue reading "Nano Contaminants: How Nanoparticles Get Into the Environment"
Spring is officially here and I don’t know about you, but I’m excited to welcome back COLOR: the bright rays of sunshine, the baby blue sky, the lively green grass, and of course, the plethora of vibrantly colored flowers. But have you ever wondered what is color? To understand the marvels of color and how …
Continue reading "What is Color and How Can It Help Kill Cancer Cells?"
Seeing small objects is no simple task, but it is an essential one for scientists from fields as diverse as astronomy and nanotechnology. In order to see tiny things, we need to both magnify them and keep their fine details apparent. Which is more important, raw enlarging power or precise detail?To help me explain, I …
An acronym you have probably seen a whole lot of in recent years is LED, or Light Emitting Diode. Long used only for low-intensity illumination (think of the blinking lights on the front of your computer), the new generations of LEDs are being used to replace all sorts of light sources from car head lights …
Continue reading "Explainer: How does an LED work?"
During a recent visit to Home Depot I came face to face with a lithium-ion battery, nanotechnology, and my interest in making a wooden-framed mirror. I had my eyes on some shiny, new Dewalt power tools. I decided that it would be much easier to build a wooden frame with a high quality drill and …
Continue reading "How do Lithium Ion Batteries Work? A Nanotechnology Explainer."
I present to you my cat, Graboid. She has nanoparticles coursing through her veins, and those nanoparticles may save her life. Grabby is 14 years old. She was not featured at the Internet Cat Video Film Festival at the Minnesota State Fair, but I still think she’s pretty great. Unfortunately, Grabby has oral squamous cell …
Continue reading "Nanomedicine Explainer – My Cat is in a Clinical Trial"
"You've gotta give it a taste to know!" answered the long-haired, cowboy shirt-wearing distiller dude at Madison, Wisconsin's Old Sugar Distillery. He was responding to my incessant questions about how long their liquors take to age. His answer was interesting, but I wanted numbers! After some more pointed questions, he told me that most of their liquors …
Continue reading "Liquor Aging, Tiny Barrels, and Next Generation Solar Cells"
Sustainable Nano 