Negatively-Charged Nanoparticles Stick to a Negatively-Charged Surface

This post is part of our ongoing series of public-friendly summaries describing research articles that have been published by members of the Center for Sustainable Nanotechnology. Julianne Troiano, a doctoral student at Northwestern University, was the first author on this paper. She says, “In this post I discuss one experimental hurdle we had to overcome that …

Charge and Gold Nanoparticle Toxicity

This post is the first in what we hope will be an ongoing series of public-friendly summaries describing research articles that have been published by members of the Center for Sustainable Nanotechnology. Jared Bozich, a doctoral student at the University of Wisconsin - Milwaukee, was the first author on this paper and was eager to take on …

What Do Gold Nanoparticles Have to Do With Wrinkly Skin?

Incorporation of engineered nanomaterials into cosmetic products including sunscreens, makeups, soaps, moisturizers and shampoos is becoming increasingly more commonplace. Manufacturers incorporate nanomaterials into their products to improve product stability, improve the delivery of vitamins and antioxidants and make products more aesthetically appealing.1 As a result of this increasing use, you may have encountered nanomaterials in …

Liposuction and Gold Nanoparticles

Scientists have discovered that tiny particles of gold injected into fat tissues can offer a new and potentially safer way to carry out liposuction procedures. Liposuction by definition is the process of removing excess fat found underneath the skin by suction. Although liposuction has a reputation as a low risk cosmetic surgery, this procedure is …

Scientists work to prevent a nano-crisis

This post is written by Anna Bisaro and originally appeared on Medill Reports, a project of Northwestern University graduate journalism students. Sustainability. The magic word that rings with the promises of a better world and cost savings. People want to create clean energy, recycle wastes and eat locally-grown food, all in the quest for sustainability. …

A Scientific Car Salesperson Visits the Factory Floor

Imagine yourself as a “scientific car salesperson.” Your job is to study how to get people to buy your cars. People ask you questions about the cars, and you usually have an OK answer. But, imagine if you could actually visit the factory floor and see the cars being made in person. Might that be …

Personal Care Products, Nano, and You

Here is a picture of the REU (Research Experiences for Undergraduate) students and I sailing in Lake Michigan earlier this summer. It was slightly cold that day at 59℉ with 15 mph winds but also surprisingly sunny, which meant we needed to whip out the sunscreen. Did you know many sunscreens contain nanoparticles? Well, they …

Art as Inspiration for Science

What inspires people to do science? Perhaps you, Dear Reader, are interested in understanding how the physical world works.  Maybe you saw a rainbow, or ocean waves on the beach, when you were a kid, and therefore have a love for optics, physics, or oceanography. Human-made objects can also inspire scientists.  Quite a few people …

In which my Mom questions the size of my nanoparticles

I was talking to my mom the other day, about nanoparticles of course, and she said: "Wait a second! Are there different sizes of nanoparticles??  I thought nano was just nano! You know?" Thanks for the question  mom!  🙂 Refresher: nanoparticles are just spherical or nearly-spherical nanomaterials. To answer my mom's question: There are LOTS of different …