Sentences with phrase «about nanoparticles»

What do you need to know about nanoparticles in baby formula?

When Saidur Rahman learned last month that his 2010 review paper about nanoparticles in refrigeration systems had been retracted, he was concerned — no one at the journal had told him it was going to be pulled.

learned last month that his 2010 review paper about nanoparticles in refrigeration systems had been retracted, he was concerned

It isn't just about nanoparticles.

Of course this announcement raises some questions about previous research that made claims about nanoparticle sizes and tracking.

Why is there excitement about nanoparticle medicine (nanomedicines) for fighting cancer?

Again from the press release: «With so many nanomaterials under development and with so much yet to be learned about nanoparticle toxicity and potential human tissue reactivity, Mahler and the team are hoping that their work, particularly the in vitro model, will provide an effective low - cost screening tool.»

Not exact matches

They may ask you specific questions about ingredients, like GMOs, animal feed, antibiotics, nanoparticles, fragrance disclosure or the country of origin of your ingredients.

WHEN J. K. Rowling described Harry Potter's invisibility cloak as «fluid and silvery», she probably wasn't thinking specifically about silver - plated nanoparticles suspended in water.

The company has a useful technique for incorporating nanoparticles into polymers, but with only about ten employees, it lacks the resources to pursue the many possible applications.

Other issues remain to be resolved, as well, including reducing costs and extending the lifespan of cobalt oxide nanoparticles, which the researchers found became deactivated after about an hour of reaction.

Raising concerns about potential harm to human health, other recent research has shown that some metal nanoparticles can damage DNA or kill cells.

What about skin creams like sunblocks that contain nanoparticles?

«What's unique about this paper is that we show not the use of metal particles, not the use of metal nanoparticles, but the use of atoms,» Tour said.

Consumers can learn more about which products contain nanoparticles by visiting the Web site for The Project on Emerging Nanotechnologies.)

But what does this curious finding, revealed yesterday by researchers at the University of Bristol, UK, mean about the safety of nanoparticles and medical treatments based on them?

There are still many questions that need to be answered about toxicity of silver nanoparticles, said Kuiken at the Project on Emerging Nanotechnologies.

Carbon nanotubes (left), quantum dots (inside cells, right), and nanoparticles show promise for many uses, but little is known about their impact on human health and the environment.

But two types of nanomaterial — loosely defined as stuff smaller than 100 nanometers — are worth worrying about, the panel found, because some evidence suggests that loose nanoparticles and nanotubes can readily penetrate cells and are toxic.

The device consists of a gold nanoparticle, about 100 nanometers in diameter, embedded in a tiny cantilever — a miniature diving board — made of silicon nitride.

Although the product didn't contain nanoparticles — the problems were ultimately traced to the formation of a super-thin film — the incident put the concept of nanomaterials (which incorporate particles or components measuring less than 100 nanometers, or about 1/250, 000 inch) squarely in the public eye and raised the question of how to harness their potential while addressing their potential risks.

«It's a tiny amount of material, and the nanoparticles are fairly easily synthesize, so we're talking about a cost of cents per dose.»

The researchers first injected the virus about a week before the lipid nanoparticles, giving the liver cells time to begin producing the RNA guide strand and the DNA template.

They did this by engineering a small air gap, about 15 nanometers in width, between the gold nanoparticle and a gold sheet.

To maximize this effect, the team created larger spheres, called microparticles, filled with about a hundred nanoparticles per microparticle, and held together by another type of biodegradable «glue.»

«The nanoparticle produces about 20 million toxins per hour in each cell.

Metallic alloy nanoparticles — particles ranging from about a billionth to 100 billionths of a meter in size — are a critical ingredient in such processes.

Scientists have only the broadest suspicions about harm that nanoparticles may cause.

Some of the worry about exposure to engineered nanoparticles arises from their unintended counterparts, often found in air pollution.

As nanotechnology to ferry drugs to their destinations is tested in both the laboratory and in clinical trials, scientists have made a surprising discovery about the kinds of nanoparticles that might be most effective for eventually transporting a number of different cancer - fighting therapies throughout the body.

The nanoparticles, about 1 / 1000th the width of a human hair, stick harmlessly to the eye's surface and use only five per cent of the drug normally required.

Even in nanomedicine, which is one of the best new methods for delivering drugs to a tumor, only about one percent of a dose of nanoparticles will successfully arrive at the intended tumor site, while the rest are filtered out by the immune cells of the liver and spleen.

A single nanoparticle simultaneously sending out multiple signals is attractive for bioimaging and biosensoring: for example, Silver would show whether a certain reaction is happening or not, while Silicon could give out information about where the nanoparticles are located.

about PPPL launches expanded new laboratory for research on the use of plasma to synthesize nanoparticles

(Information about trials of the nanoparticles, denoted CRLX101, is available at www.clinicaltrials.gov).

In the study, Davis and his colleagues examined gastric tumors from nine human patients both before and after infusion with a drug — camptothecin — that was chemically bound to nanoparticles about 30 nanometers in size.

When mixed and annealed, the tetrahedral arrays formed superlattices with long - range order where the positions of the gold nanoparticles mimics the arrangement of carbon atoms in a lattice of diamond, but at a scale about 100 times larger.

Read more about Scientists unlock path to use cell's own nanoparticles as disease biomarkers - Scimex

These methods make assumptions about the arrangement of atoms, which isn't a good fit for nanoparticles because no two are alike.

To simulate a supercell of about 1,300 atoms from strongly magnetic regions of the 23,000 - atom nanoparticle, they used the Linear Scaling Multiple Scattering (LSMS) code, a first - principles density functional theory code developed at ORNL.

If you want to form very flexible chains of nanoparticles in liquid in order to build tiny robots with flexible joints or make magnetically self - healing gels, you need to revert to childhood and think about sandcastles.

We've been hearing a lot about the antibacterial qualities of silver nanoparticles.

«People have been interested in using silver nanoparticles for antimicrobial purposes, but there are lingering concerns about their environmental impact due to the long - term effects of the used metal nanoparticles released in the environment,» says Velev, the INVISTA Professor of Chemical and Biomolecular Engineering at NC State and the paper's corresponding author.

about PPPL receives $ 4.3 million to increase understanding of the role that plasma plays in synthesizing nanoparticles

Though a recent study conducted by the Swiss National Science Foundation revealed that the bulk of silver nanoparticles is retained in wastewater treatment plants, only little is known about the persistence and the impact of the residual nano - silver in the environment.

With these nanoparticles it's possible for us to begin answering fundamental neurobiological questions about NIFPs.

Although it has been reported that polysaccharides can reduce the toxicity of silver nanoparticles [15] less is known about the influence of monosaccaharides [16] thus, the different results are difficult to rationalise.

Nevertheless, despite the importance of carbohydrates in biology and the vast array of literature on functionalized nanomaterials, little is known about the effects of carbohydrates on the uptake and toxicity of nanoparticles by different type of cells.

Earlier this week (Feb. 24, 2014), I published a post featuring Dr. Andrew Maynard, Director of the University of Michigan's Risk Science Center in an introductory video describing seven surprising facts about silver nanoparticles.

Nevertheless, little is still known about the influence of carbohydrates on the toxicity and cellular uptake of nanoparticles.